Готові списки джерел за темами / Inversion locative

Добірка наукової літератури з теми "Inversion locative"

Автор: Grafiati

Опубліковано: 22 червня 2024

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Статті в журналах з теми "Inversion locative":

Ngoboka, Jean Paul. "Mandarin Chinese Locative Inversion vs. Kinyarwanda Stative Locative Inversion." International Journal of Culture and History 5, no. 1 (May 1, 2018): 1. http://dx.doi.org/10.5296/ijch.v5i1.12490.

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This study aims to provide a detailed comparison of locative inversion in Mandarin Chinese with -zhe and (stative) locative inversion in Kinyarwanda. After a brief description of these constructions, the study shows that they are similar in many respects and involve similar restrictions despite the fact that the two languages are genetically unrelated: the agent is deleted and disallowed even in a by-agent phrase; the verb belongs to the type of verbs referred to as placement verbs; and it must express a state after the action. These constructions are incompatible with adverbs of manner as well as some placement verbs that do not entail duration after the action, which is typical of stativization. After a detailed comparison of locative inversion in the two languages, it is concluded that despite the fact that the two languages are not related, the locative inversion in Chinese with -zhe has properties similar to those of (stative) locative inversion in Kinyarwanda. It is proposed that although these constructions are referred to as locative inversion, they are primarily stative constructions in which the locative happens to be in a subject position, where it can alternate with the theme.

Jarrah, Marwan. "Temporal/locative inversion in Arabic." Yearbook of the Poznan Linguistic Meeting 3, no. 1 (September 26, 2017): 117–40. http://dx.doi.org/10.1515/yplm-2017-0006.

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AbstractThis research scrutinizes the observation that when the thematic subject is extracted (i.e. questioned) in Jordanian Arabic, temporal/locative inversion may occur. Temporal inversion occurs irrespective of the verb being transitive or intransitive, whereas locative inversion is limited to contexts with an unaccusative verb. This research argues that this distinction correlates with the base-generation of temporal/locative adjuncts; temporal adjuncts are base-generated adjoining to TP, whereas locatives are base-generated adjoining to VP. Temporal but not locative adjuncts resist fronting with VP, demand the use of a tense copula (or a tensed verb), and are not subject to deletion along with the lexical verb. With the assumption that Spec, SubjP must be filled with a non-silent copy due to the effects of the so-called Subject Criterion (Rizzi and Shlonsky 2007), a temporal or locative adjunct, if any, fills this position instead of the extracted thematic subject. Given its low position, a locative adjunct is accessible to Subj0only when there is no v*P, hence the account of the correlation between locative inversion and the type of the verb. Furthermore, this research explores the existence of temporal/locative inversion in other two Arabic dialects (Najdi Arabic and Iraqi Arabic), arguing for a micro-parametric view of this strategy across Arabic dialects.

Marten, Lutz, and Jenneke van der Wal. "A typology of Bantu subject inversion." Linguistic Variation 14, no. 2 (December 31, 2014): 318–68. http://dx.doi.org/10.1075/lv.14.2.04mar.

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This study charts variation in subject inversion constructions in Bantu languages. It distinguishes between seven types of inversion constructions: formal locative inversion, semantic locative inversion, instrument inversion, patient inversion, (clausal) complement inversion, default agreement inversion and agreeing inversion. Based on a set of nine surface variables, a matrix of inversion constructions is developed which identifies characteristics of the set of constructions overall as well as of each individual construction type. The distribution of the different inversion constructions is documented with reference to a sample of 46 Bantu languages, from which geographical and typological generalisations are drawn. For example, languages with instrument inversion or with patient inversion always have locative inversion (but not vice versa), or if a language has at least one inversion construction, it always has at least either default agreement inversion or agreeing inversion. Finally, underlying parameters potentially accounting for the variation are discussed, such as the status of preverbal locatives as DP or PP, the agreement parameter and the syntactic and thematic restrictions on the preverbal element.

Guérois, Rozenn. "Locative inversion in Cuwabo." ZAS Papers in Linguistics 57 (January 1, 2014): 49–71. http://dx.doi.org/10.21248/zaspil.57.2014.419.

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This paper proposes a detailed description of locative inversion (LI) constructions in Cuwabo, in terms of morphosyntactic properties and thematic restrictions. Of particular interest are the use of disjoint verb forms in LI, and the co-existence of formal and semantic LI, which challenges the widespread belief that the two constructions cannot be found in the same language.

Broekhuis, Hans. "Locative inversion in English." Linguistics in the Netherlands 2005 22 (September 28, 2005): 49–60. http://dx.doi.org/10.1075/avt.22.07bro.

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Marten, Lutz. "Locative inversion in Otjiherero: more on morphosyntactic variation in Bantu." ZAS Papers in Linguistics 43 (January 1, 2006): 97–122. http://dx.doi.org/10.21248/zaspil.43.2006.287.

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This paper discusses locative inversion constructions in Otjiherero against the background of previous work by Bresnan and Kanerva (1989) on the construction in Chichewa, and Demuth and Mmusi (1997) on Setswana and related languages. Locative inversion in Otjiherero is structurally similar to locative inversion in Chichewa and Setswana, but differs from these languages in that there are fewer thematic restrictions on predicates undergoing locative inversion. As Otjiherero has a three-way morphological distinction of locative subject markers, this shows that there is no relation between agreement morphology and thematic restrictions in locative inversion, confirming the result of Demuth and Mmusi. The availability of transitive predicates to participate in locative inversion in Otjiherero furthermore raises questions about the relation between locative inversion, valency, and applicative marking, and these are addressed in the paper, although further research is needed for a full analysis. In terms of function of the locative subject markers, Otjiherero presents, like Chishona, a split system where all markers support locative readings, but where one of them is also used in expletive contexts. In contrast to Chishona, though, this is the class 16, rather than the class 17 marker.

Seo, Ah Ri, and Hyeson Park. "Locative Inversion in Korean Learners’ L2 English." NEW STUDIES OF ENGLISH LANGUAGE & LITERATURE 84 (February 28, 2023): 45–68. http://dx.doi.org/10.21087/nsell.2023.02.84.45.

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Gournay, Lucie. "Qu’est-ce qui distingue l’inversion absolue de l’inversion locative en français ?" Ordre des mots et topologie de la phrase française 29, no. 1 (July 6, 2006): 91–102. http://dx.doi.org/10.1075/li.29.1.08gou.

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Linguistics studies on full inversion in French do not clearly state a difference between locative inversion (LI) and absolute inversion (AI) in independent clauses. In this corpus-based study, I demonstrate the relevance of drawing a line between the two word-order phenomena. I first outline the different formal constraints shared by the two inversions, and then show that some properties typical of LI — which have been put forward in previous work- do not apply to AI. In a final section, I relate the formal properties of both inverted structures to two different deictic functions in written discourse. Both inversions imply a deictic reference to the on-going discourse, but whereas LI refers directly to the situation that is represented, AI refers to the discursive strategy of the discourse.

Prado-Alonso, Carlos. "Speaker’s Involvement in Press Reportage: The Case of Nonlexicalised and Lexicalised Locative Inversion." Atlantis. Journal of the Spanish Association for Anglo-American Studies 43, no. 1 (June 28, 2021): 221–42. http://dx.doi.org/10.28914/atlantis-2021-43.1.12.

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This article offers a corpus-based analysis of locative inversion in journalistic writing. The study focuses on the analysis of the construction in press reportage dealing with cultural, sports, financial, political and spot news in Present-Day English. On the basis of data retrieved from six different corpora, it is argued that the distribution of locative inversion in these texts is related to the degree of the writer’s involvement in each text style. Results show that the more involved a text is, the more locative inversions may be expected. The study further demonstrates that the construction itself serves as a discourse marker through which the presence of the writer is encoded in these texts.

Ming-Hao Jin. "Locative Inversion in Mandarin Chinese." Linguistic Association of Korea Journal 23, no. 4 (December 2015): 27–43. http://dx.doi.org/10.24303/lakdoi.2015.23.4.27.

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Дисертації з теми "Inversion locative":

Nagase, Erika Inoue. "A inversão locativa no português brasileiro." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/8/8142/tde-04102007-135055/.

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Na presente pesquisa analisamos as construções que envolvem as estruturas de IL sob a perspectiva da Teoria Gerativa em sua versão de Princípios e Parâmetros (Chomsky 1981, 1986). É considerado um fenômeno de inacusatividade e um fenômeno discursivo em línguas como o inglês e o espanhol. Sua estrutura padrão é a ordem PP V DP, em que o PP é um locativo (LOC) e o DP é um argumento tema em posição pós-verbal. Partimos de uma análise léxico-funcional de Bresnan (1994) que postula a Hipótese do Foco Apresentacional para explicar a função discursiva da construção. Em seguida, apresentamos a análise discursiva de Levin & Rappaport Hovav (1995) que propõem a Hipótese do Verbo Informacionalmente Leve. A terceira análise traz uma visão minimalista recente sobre a construção através da descrição de fenômenos que se inter-relacionam - a IL, a topicalização de PPs e o EPP. Para a análise da IL é fundamental investigar onde se coloca o PB atualmente dentro do parâmetro do sujeito nulo, como se dá a atribuição de Caso nominativo ao sujeito e em que contextos ocorre a inversão nessa língua. Assim, fazemos uma breve revisão da literatura do PB, partindo da Hipótese do Caso Partitivo, passando pela a Hipótese de Mono-Argumentalidade, até chegar nas sentenças com SUJs invertidos tanto com verbos mono-argumentais quanto com VTs. Referenciamos um dos primeiros trabalhos sobre a IL, em que Barbosa (1989) nos oferece algumas intuições iniciais para uma análise do fenômeno. Já Pilati (2002) descreve as construções de IL como um dos tipos de sentenças apresentativas e Quarezemin (2006) propõe que estas construções são motivadas por tal função discursiva pelo fato de seus SUJs serem interpretados como o FOC das sentenças. Em seguida, apresentamos uma proposta de análise para a IL, mostrando que há dois tipos de ILs - a IL propriamente dita e a IL discursiva. O último capítulo apresenta as considerações finais desta pesquisa, apontando algumas semelhanças entre a construção da IL e as construções de topicalização sem preposição. Mais do que propor uma análise para a IL no PB, nosso objetivo é mostrar a importância de tal fenômeno num âmbito maior dos estudos da gramática do PB, considerando que a IL pode ser uma pista que caracterizaria o PB como uma língua de traço EPP.
In this dissertation we analyse constructions that involve inversion locative (IL) structures under the Government and Binding framework of the Generative Theory (Chomsky 1981, 1986). IL is considered an unaccusativity and discourse-like phenomenon in languages like English and Spanish. Its pattern structure is the order PP V DP, in which the PP is a locative and the DP is theme argument placed in postverbal position. We departure from a lexical functional analysis from Bresnan (1994) that postulates the Presentational Focus Hypothesis in order to explain the discourse-like function of the construction. In the sequence we present a dicourse-like analysis from Levin & Rappaport Hovav (1995) that proposes the Informationally Light Verb Hypothesis. A third analysis brings a recent minimalist view of the construction through the description of some phenomena that are interrelated - the IL, the topicalization of PPs and the EPP. In order to analyse the IL in Brazilian Portuguese (BP) it is primordial to investigate where BP can be placed within the pro-drop parameter, how nominative Case can be assigned to the subject and in which contexts the inversion occurs in this language. Hence, we do a brief review of the BP literature, departuring from the partitive Case, going to the Intransitive Hypothesis up to sentences with inverted subjects with both intransitive and transitive verbs. We mention one of the first papers about IL in Portuguese, in which Barbosa (1989) offers us some intuitions for an analysis to this phenomenon. Pilati (2002) describes the IL constructions as presentational sentences and Quarezemin (2006) proposes that these constructions are motivated by a dicourse-like function since its subjects must be interpretated as the focus of the sentences. After that we present an analysis to the IL in BP, showing that there are two different kinds of IL - the IL itself and the discourse-like IL. The last chapter presents the conclusions of this research, pointing some similarities between the IL constructions and the topicalization of PPs. More than proposing an analysis to the IL in BP our goal is to show the importance of such phenomenon in a more general view of the BP grammatical studies, considering that IL can be a clue that would characterize BP as an EPP language.

Morapedi, Setumile. "The syntax of locative inversion and related constructions in Setswana : an approach to information structure in lexical functional grammar." Thesis, University of Sussex, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.441626.

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Liu, Chang. "Existential Sentences in Mandarin Chinese : (Les phrases existentielles en chinois mandarin)." Electronic Thesis or Diss., Paris 8, 2021. http://www.theses.fr/2021PA080100.

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Cette thèse s’attache à l’étude de la syntaxe et de la sémantique de quatre types de phrases existentielles (PS) en chinois mandarin. Selon le classement proposé par Huang (1987), ces PS sont basées sur yǒu « avoir » (Type I), sur des verbes de dis/apparition comme lái « venir » et sǐ « mourir » (Type II), sur des verbes de localisation comme zuò « s'asseoir » (Type III) et sur des Constructions de Prédication Secondaire ou Presentational Amalgam Constructions (Type IV). Pour chaque type d’PS, nous proposons une analyse syntaxique non-uniforme basée sur ses propriétés syntaxiques et sémantiques.Dans le chapitre 2, nous étudions la PS basée sur yǒu « avoir », à la fois dans des contextes racine et dans certains contextes enchâssés. Les PS basées sur yǒu « avoir » consistent en un syntagme nominal de localisation (« localiser phrase ») suivi par yǒu « avoir », un pivot et une coda. Les chercheurs les ont comparées aux PS « there be » en anglais (Milsark 1974, McNally 1997). Dans les contextes racine, nous montrons que la PS avec un sujet manifeste (syntagme nominal de localisation) a une structure prédicationnelle, et que le pivot dénote une propriété. En revanche, la PS sans sujet manifeste a un sujet explétif, et le pivot est un argument interne. Avec une coda, le complément de yǒu « have » est considéré comme une phrase relative (PR) à tête interne, dans laquelle la tête interne se déplace vers Spec,CP de la clause (analyse par montée, cf. Simpson 2003/1997). Nous montrons en outre que ce type de PR dans les constructions yǒu-PS partage une structure de base avec la phrase relative pré-nominale dotée d’un démonstratif (sans le marqueur de modification de). Ce type d’approche rappelle une analyse des phrases relatives libres « Free Relatives » définies et indéfinies en chuj qui partagent une structure relative commune (Kotek & Erlewine 2016).Dans certains contextes enchâssés tels que la phrase rúguǒ « si » et le sujet phrasal, la yǒu-PS n’est pas sujette à la contrainte d’indéfinitude (Li 1996). Nous suivons Li en analysant le complément de yǒu « avoir » comme ayant une structure vP/VP. Nous montrons qu’un tel vP dénote le type d’événement « event type ». Le sujet est un explétif.En outre, nous proposons une première analyse des Presentational Amalgam Constructions (PACs). Les PACs ont été étudiées sous le nom de Constructions de Prédication Secondaire dans la littérature (Tsai 1994, Del Gobbo 2014). Le terme implique l’analyse selon laquelle la coda est un prédicat secondaire. Nous montrons que la séquence post-verbale a une structure de la phrase relative, avec le pivot engendré en tant qu’une tête relative externe, et la coda adjointe à gauche du pivot. À l'intérieur de la coda, la tête interne NP se déplace et s’efface contre la tête externe (analyse « matching »). L’ordre de surface est obtenu grâce au mouvement du pivot vers une position d’objet supérieure. Cette analyse ranime partiellement l'analyse de Tai (1978)
This dissertation investigates the syntax and semantics of four types of Existential sentences (ESs) classified by Huang (1987) in Mandarin Chinese. These ESs are based on yǒu ‘have’ (Type I), verbs of (dis)appearances like lái ‘come’ and sǐ ‘die’ (Type II), locational verbs like zuò ‘sit' (Type III) and Presentational Amalgam Constructions (Type IV). For each type of ESs, I propose non-uniform syntactic analysis based on their syntactic and semantic properties.In Chapter 2, we investigate the yǒu ‘have’-ES both in root contexts and in certain embedded contexts. Full-fledged yǒu ‘have’-ESs are composed of a pre-yǒu localiser phrase, yǒu ‘have’, a pivot and a coda. Scholars have compared them to English there be existentials (Milsark 1974, McNally 1997). In root contexts, it is argued that the ES with a subject (a localiser phrase) has a predication structure, and the pivot denotes property. By contrast, the ES without an overt subject has an expletive subject, and the pivot is an internal argument. We argue that yǒu ‘have’ is not an unaccusative verb. With a coda, the complement of yǒu ‘have’ is argued to be a left-headed Internally Headed Relative Clause, in which the internal head moves to Spec,CP of the clause (Raising Analysis, see also Simpson 2003/1997). It is further argued that this type of RC in yǒu-ESs has a common core structure with the pre-nominal relative clause with a demonstrative head noun (without the modification marker de). This is reminiscent of the analysis that definite and indefinite free relatives share a common relative clause structure in Chuj (Kotek & Erlewine 2016).In certain embedded contexts such as rúguǒ ‘if’-clause and sentential subject, the yǒu-ES does not exhibit the Definiteness Effect (Li 1996). We follow Li in analysing the complement of yǒu ‘have’ as having a vP/VP structure. We take this vP to denote event type. The subject is an expletive. Furthermore, I provide my first analysis of Presentational Amalgam Constructions (PACs). The PAC has been studied under the name Secondary Predication Constructions in the literature (Tsai 1994, Del Gobbo 2014). The term implies the analysis in which the coda is a secondary predicate. I argue that the post-verbal sequence has a relative clause, in which the pivot is the External Head, and the coda is originally left-adjoined to the pivot. Inside the coda clause, the Internal Head NP moves and gets elided against the External Head (Matching Analysis). The surface pivot-coda order is achieved as a result of the movement of the pivot to a higher object position. This analysis partially revives Tai’s (1978) analysis

Pereira, Célia Maria Pires. "Inversão locativa em português." Master's thesis, Porto : [Edição do Autor], 1998. http://hdl.handle.net/10216/54192.

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Nesta dissertação, faz-se uma descrição dos contextos de ocorrência do fenómeno de "inversão locativa"; apresentam-se as análises já surgidas na literatura e, por fim, propõe-se uma análise original baseada em algumas ideias do Programa Minimalista. Defende-se que o fenómeno de "inversão locativa" é, justificado por razões discursivas e legitimado por um traço forte de uma categoria funcional acima de * ; sempre que a posição de especificados dessa categoria funcional foi preenchida , para a verificação do traço forte, a ordem da frase será preferencialmente Loc V SN

Pereira, Célia Maria Pires. "Inversão locativa em português." Dissertação, Porto : [Edição do Autor], 1998. http://aleph.letras.up.pt/F?func=find-b&find_code=SYS&request=000093330.

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Gang, Tian. "Post-stack inversion of seismic reflection data from the Belvoir Coalfield." Thesis, Durham University, 1995. http://etheses.dur.ac.uk/5219/.

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Post-Stack inversion of reflection data in seismic exploration can be used to obtain detailed information about lithology variations in the zone of interest. Generalized Linear Inversion (GLI) has previously been applied as a useful tool to achieve this. The purpose of my investigation is to apply GLI to data from the Coal Measures. It is known that in the Coal Measures the most strongly reflecting horizons are the coal seams, which are the exploration targets. In the seismic bandwidth they are thin beds, which causes particular problems associated with vertical resolution for the inversion. The method is applied to a seismic line from the Belvoir Coalfield supplied by British Coal. In order to get better relative amplitudes and to keep the same bandwidth down the whole section, the data were carefully reprocessed using the ProMAX software. Wireline log data from two boreholes intersected by the seismic line were edited to generate acoustic impedance logs as functions of time. Software was developed to implement GLI, and tested on synthetic data before applying it to the reprocessed data. The initial guesses for earth and wavelet models at the boreholes were obtained after systematic studies to determine the best strategy. The construction of the initial guess for the boundary locations elsewhere on the section is very critical for the success of the search for the global minimum. A combination of structural interpretation and the inversion results obtained from the previous trace was found to do the best job. I have tried to invert separately for the boundary locations, acoustic impedances and the wavelet, with the wavelet parameterized in the frequency domain. I found that, provided that the wavelet extracted at a borehole is a good estimate with low error energy, the most successful strategy is just to invert for the boundary locations, keeping the acoustic impedances and the extracted wavelet fixed. If the extracted wavelet is not a good estimate, then parameterizing the wavelet in the frequency domain and optimizing those parameters at the borehole is a useful approach. None of the implemented inversion strategies produced a perfect result. Discrepancies were due to the difficulty in obtaining true relative amplitude values on the processed section. The inversion results and systematic studies on the field dataset indicate that the assumptions of the convolutional model are not satisfied by the processed section.

Pedroza, Jonathan Furtado. "Sobre a emergência da inversão locativa no português do Brasil." reponame:Repositório Institucional da UnB, 2015. http://dx.doi.org/10.26512/2015.02.D.18505.

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Dissertação (mestrado)—Universidade de Brasília, Instituto de Letras, Departamento de Linguística, Português e Línguas Clássicas, Programa de Pós-Graduação em Linguística, 2015.
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A presente pesquisa examina aspectos sintáticos e semânticos de sentenças com ordem verbo-sujeito (VS) no português brasileiro (PB) na região Centro-Oeste durante o século XIX. Dada a hipótese de que o processo sócio-histórico favoreceu situações específicas de contatos e de isolamentos social e linguístico [cf. Borges, Salles & Pilati (2012)], o objetivo geral do estudo é o de investigar se houve influência desse isolamento linguístico no licenciamento da ordem VS. Para tanto, o presente trabalho realiza uma investigação quantitativa no Jornal Matutina Meyapontense, impresso local produzido no final do século XVIII e durante o século XIX, e compara os dados obtidos com as análises provenientes das pesquisas diacrônicas de Berlinck (1989) e de Gravina (2014). Nessa comparação são verificados aspectos em comum e aspectos em divergência. O presente trabalho apresenta também os resultados das análises quantitativas efetuadas no corpus escrito do Jornal Matutina Meyapontense sobre as orações na ordem (X)VS, com X manifesto ou nulo. Em relação ao aspecto qualitativo, o presente trabalho defende que, já no século XIX, no centro-oeste brasileiro, as orações na ordem VS poderiam ser inversão locativa, como defende Pilati (2006) para os dados do PB atual. Defende-se também, como proposto por Corr (2012), que não há relação entre inversão locativa e parâmetro pro-drop.
This dissertation examines syntactic and semantic aspects of sentences with verb-subject order (VS) in Brazilian Portuguese (BP) in the Midwest region during the XIX Century. Based on the hypothesis that the socio-historical process favored specific situations of contacts and social and linguistics isolations [cf. Borges, Salles & Pilati (2012)], the general objective of this study is to investigate whether there was influence of linguistic isolation in licensing the VS order. Therefore, this dissertation makes a quantitative analysis in the Matutina Meyapontense Journal, local impress produced in the late XVIII Century and during the XIX Century, and compares the data obtained from the analysis of the diachronic research Berlinck (1989) and Gravina (2014). In this comparison are checked aspects in common and aspects at odds. This paper also presents the results of quantitative analysis carried out in the corpus of written Matutina Meyapontense Journal on clauses in the (X)VS order, with X manifest or null. Regarding the qualitative aspect, this paper argues that, in the XIX Century, in midwestern Brazil, the clauses in the VS order could be locative inversion, as argued by Pilati (2006) for information on the current PB. This paper defends also, as proposed by Corr (2012), that there isn’t relationship between locative inversion and pro-drop parameter.

Napoli, Vanessa J. "Relative Location Analysis and Moment Tensor Inversion for the 2012 Gulf of Maine Earthquake Swarm." Thesis, Boston College, 2016. http://hdl.handle.net/2345/bc-ir:106714.

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Thesis advisor: John E. Ebel
Large magnitude offshore passive margin earthquakes are rare, making small magnitude events (M < 4) the predominant data available to study the mechanisms of seismicity along passive margins. This study is focused on a swarm of events (M2.1-M3.9) that occurred from 2012-2013 located in the Gulf of Maine (GM) along the Atlantic Passive Margin (APM) shelf break, a region with previously minimal recorded seismic activity. Relative locations were calculated for the earthquakes of the GM swarm and a moment tensor inversion method was used to calculate focal mechanisms for the two largest events in the swarm. The results of the relative location method constrained a fault orientation to a strike of 243° ± 3° and a dip of 25° ± 3°. The focal mechanisms for the two largest events were determined to be oblique normal faults with steeply dipping planes at depths between 12-18 km. For the largest event (M3.9), the strike is 235° ± 1°, with a dip of 77.7° ± .8° and a rake of -116.5° ± 3°, and for the second largest event (M3.7) the strike is 259° ± 3°, with a dip of 78° ± 2° and a rake of -58.8° ± 7°. By mapping the spatial extent of the relative hypocenters, I infer a potential fault size of 2.7 km by 2.4 km. If this entire area were to rupture at once in the future, an earthquake of M4.9-M5.0 could occur, a magnitude not large enough to be tsunamigenic in the GM. Based on Gutenberg-Richter relations from the eastern APM, if a M7 can occur in the GM, its estimated mean repeat time is 2,120-22,800 years, and it could be tsunamigenic depending on the event’s proximity to the continental slope
Thesis (MS) — Boston College, 2016
Submitted to: Boston College. Graduate School of Arts and Sciences
Discipline: Earth and Environmental Sciences

Hatzinger, Reinhold, and Walter Katzenbeisser. "A Combination of Nonparametric Tests for Trend in Location." Department of Statistics and Mathematics, WU Vienna University of Economics and Business, 1991. http://epub.wu.ac.at/1298/1/document.pdf.

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A combination of some well known nonparametric tests to detect trend in location is considered. Simulation results show that the power of this combination is remarkably increased. (author's abstract)
Series: Forschungsberichte / Institut für Statistik

Li, Ka Lok. "Location and Relocation of Seismic Sources." Doctoral thesis, Uppsala universitet, Geofysik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-327038.

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This dissertation is a comprehensive summary of four papers on the development and application of new strategies for locating tremor and relocating events in earthquake catalogs. In the first paper, two new strategies for relocating events in a catalog are introduced. The seismicity pattern of an earthquake catalog is often used to delineate seismically active faults. However, the delineation is often hindered by the diffuseness of earthquake locations in the catalog. To reduce the diffuseness and simplify the seismicity pattern, a relocation and a collapsing method are developed and applied. The relocation method uses the catalog event density as an a priori constraint for relocations in a Bayesian inversion. The catalog event density is expressed in terms of the combined probability distribution of all events in the catalog. The collapsing method uses the same catalog density as an attractor for focusing the seismicity in an iterative scheme. These two strategies are applied to an aftershock sequence after a pair of earthquakes which occurred in southwest Iceland, 2008. The seismicity pattern is simplified by application of the methods and the faults of the mainshocks are delineated by the reworked catalog. In the second paper, the spatial distribution of seismicity of the Hengill region, southwest Iceland is analyzed. The relocation and collapsing methods developed in the first paper and a non-linear relocation strategy using empirical traveltime tables are used to process a catalog collected by the Icelandic Meteorological Office. The reworked catalog reproduces details of the spatial distribution of seismicity that independently emerges from relative relocations of a small subset of the catalog events. The processed catalog is then used to estimate the depth to the brittle-ductile transition. The estimates show that in general the northern part of the area, dominated by volcanic processes, has a shallower depth than the southern part, where tectonic deformation predominates. In the third and the fourth papers, two back-projection methods using inter-station cross correlations are proposed for locating tremor sources. For the first method, double correlations, defined as the cross correlations of correlations from two station pairs sharing a common reference station, are back projected. For the second method, the products of correlation envelopes from a group of stations sharing a common reference station are back projected. Back projecting these combinations of correlations, instead of single correlations, suppresses random noise and reduces the strong geometrical signature caused by the station configuration. These two methods are tested with volcanic tremor at Katla volcano, Iceland. The inferred source locations agree with surface observations related to volcanic events which occurred during the tremor period.

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Книги з теми "Inversion locative":

Bresnan, Joan. Locative inversion in Chicheŵa: A case study of factorization in grammar. Stanford, CA: Center for the Study of Language and Information, 1988.

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Celis, Fernando Alvarez de. Inversión, concentración y desindustrialización: La nueva configuración geográfica de la industria en la Región Metropolitana de Buenos Aires, en la década del noventa. Capital [i.e. Buenos Aires]: Cooperativa de Trabajo Cultural El Farol, 2007.

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La Prédication. Ophrys, 2009.

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Medforth, Janet, Linda Ball, Angela Walker, Sue Battersby, and Sarah Stables, eds. Oxford Handbook of Midwifery. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780198754787.001.0001.

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The third edition of the popular Oxford Handbook of Midwifery has been extensively revised using the latest evidence-based guidelines and national recommendations. Continuing to give a complete picture of the role of the midwife in multidisciplinary care for childbearing women, the handbook reflects the mother's journey through pregnancy, birth, and beyond, with care of the newborn, newborn feeding, and postnatal care in a precise and logical approach. Three newly configured chapters on infections and sepsis, obesity, and hypertensive disorders of pregnancy are offered to help readers find information in one location. There are new mini-sections on independent prescribing, fetal programing, uterine inversion and uterine rupture, the introduction of doulas into the care pathway, and breast feeding innovations such as breast crawl. Included are updated resources and national guidelines and recommendations from trusted bodies such as the National Institute for Health and Care Excellence, the Royal College of Midwives, and the Royal College of Obstetricians and Gynaecologists, along with relevant Cochrane database evidence. The midwife’s changing role in contributing to women's health and public health issues is acknowledged and lastly there is notice of the impending changes to midwifery regulation in the UK. The book is presented in an easily readable style with clear headings and key facts delivered in bullet points. The book is intended for students, practising midwives, educators, and anyone who needs a handy quick reference guide to aid their contribution to maternity care.

Частини книг з теми "Inversion locative":

Kempchinsky, Paula. "Locative inversion, PP topicalization and the EPP." In Current Issues in Romance Languages, 145–58. Amsterdam: John Benjamins Publishing Company, 2002. http://dx.doi.org/10.1075/cilt.220.11kem.

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Rizzi, Luigi, and Ur Shlonsky. "Satisfying the Subject Criterion by a non subject: English Locative Inversion and Heavy NP Shift." In Phases of Interpretation, 341–62. Berlin, New York: Mouton de Gruyter, 2006. http://dx.doi.org/10.1515/9783110197723.5.341.

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Sambridge, M. S., and B. L. N. Kennett. "Seismic Event Location: Nonlinear Inversion Using a Neighbourhood Algorithm." In Monitoring the Comprehensive Nuclear-Test-Ban Treaty: Sourse Location, 241–57. Basel: Birkhäuser Basel, 2001. http://dx.doi.org/10.1007/978-3-0348-8250-7_15.

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Dosso, S. E., and Pierre Zakarauskas. "Matched-Field Inversion for Source Location and Equivalent Bathymetry." In Full Field Inversion Methods in Ocean and Seismo-Acoustics, 279–84. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-015-8476-0_45.

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Zolchow, Manuel, Natalie Pickartz, Adrian Serbanescu, Ercan Erkul, Daniel Köhn, Dennis Wilken, Stefan Dreibrodt, et al. "First results from stratigraphic investigation of Chiselet tell (Romania) using seismic full waveform inversion." In Advances in On- and Offshore Archaeological Prospection, 621–30. Kiel: Universitätsverlag Kiel | Kiel University Publishing, 2023. http://dx.doi.org/10.38072/978-3-928794-83-1/p63.

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In this paper we analyze the applicability of seismic full-waveform inversion (FWI) for investigation of tells, which are often characterized by heterogeneous and small-scale stratigraphy. Major aim is to identify location and shape of settlement layers and house remains. Furthermore, a paleochannel, which is important to understand the interaction between tell and the surrounding landscape, was found at the tell flank.

Campos, Damián, Andrés Ajras, Lucas Goytiño, and Marcelo Piovan. "Bayesian Inversion of a Non-linear Dynamic Model for Stockbridge Dampers." In Proceedings of the XV Ibero-American Congress of Mechanical Engineering, 3–9. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-38563-6_1.

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AbstractStockbridge dampers are the most widely used in wind induced vibration control of overhead power transmission lines. This dynamic absorber comprises a carrier cable with a mass at each end and a bolted clamp that can be attached to a conductor or a guard wire, with the purpose of supplementing the energy dissipated by the cable related to its self-damping. The maximum response of this type of absorber is associated with the frequencies of its different oscillation modes. The masses are designed in such a way to obtain moments of inertia and location of their center of gravity such that, with the vibration of the clamp, their various characteristic bending and torsional modes are excited. In this work, the calibration of a nonlinear finite element model using Bayesian inference is presented to evaluate the dynamic behavior of the damper for all excitation frequencies and displacement amplitudes. To this end, an inverse problem was posed in which the probability distributions of the parameters of interest are obtained from backward uncertainty propagation of experimental measurements performed in laboratory tests. Finally, the uncertainty of the calibrated model was propagated and contrasted with the experimental data. The developed model is a powerful tool when defining the quantity and distribution of dampers in the span of a line.

Papathanassiou, K. P., S. R. Cloude, M. Pardini, M. J. Quiñones, D. Hoekman, L. Ferro-Famil, D. Goodenough, et al. "Forest Applications." In Polarimetric Synthetic Aperture Radar, 59–117. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-56504-6_2.

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AbstractThe application of polarimetric Synthetic Aperture Radar (SAR) to forest observation for mapping, classification and parameter estimation (especially biomass) has a relatively long history. The radar penetration through forest volume, and hence the multi-layer nature of scattering models, make fully polarimetric data the observation space enabling a robust and full inversion of such models. A critical advance came with the introduction of polarimetric SAR interferometry, where polarimetry provides the parameter diversity, while the interferometric baseline proves a user-defined entropy control as well as spatial separation of scattering components, together with their location in the third dimension (height). Finally, the availability of multiple baselines leads to the full 3-D imaging of forest volumes through TomoSAR, the quality of which is again greatly enhanced by the inclusion of polarimetry. The objective of this Chapter is to review applications of SAR polarimetry, polarimetric interferometry and tomography to forest mapping and classification, height estimation, 3-D structure characterization and biomass estimation. This review includes not only models and algorithms, but it also contains a large number of experimental results in different test sites and forest types, and from airborne and space borne SAR data at different frequencies.

Stroeken, Koen. "Chapter Seven: The Oracle and the Real." In Simplex Society, 185–93. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-41115-1_9.

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AbstractThis chapter synthesizes the author’s ethnographic work on healing systems in Africa. Divination has political relevance because is the art of shifting frames. The shift occurs by letting in ‘the real’, a moment neither imaginary nor symbolical. Why should oracles need mediumship or the geomantic throw? Ethnography in eastern and central Africa indicates that an oracle’s purpose is to defuse the simplex preoccupying the consulters.The reader learns about the organs that matter in haruspication. The five chapters of the first part diagnosed society as in a state of entropy and dehumanizing. Sukuma diviners in Tanzania have the tools for such diagnosis but viscerally enact them, which our analysis is in dire need of. To dehumanize is to imagine humans that can lay a claim on you. Bewitchment is the universal experience of someone embodying the Law and living inside you, impinging on your freedom, while you mistakenly situate the help offered by people and so-called ancestral energies ‘outside’ yourself. To live together with one’s witch, an inversion is called for, whereby you accept all those energies of ‘the real’ as part of yourself and locate the Law of the witch where it belongs, quite simply outside of your self. This act is not just a micro-story. Such frameshifts, anthropologists have shown, have built and regenerated society anywhere on this planet. Not surprisingly then, it is here that we discover the tensor of collective reason.

Ura, Hiroyuki. "Locative Inversion." In Checking Theory and Grammatical Functions in Universal Grammar, 156–79. Oxford University PressNew York, NY, 2000. http://dx.doi.org/10.1093/oso/9780195118391.003.0005.

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Abstract In the previous chapters I have crucially utilized the notion equidistance under the theory of Attract proposed by Chomsky (1995a). Under this theory, the local and strictly stepwise economy condition (Collins 1996 and Ura 1995c) guarantees that the application of Attract to α is as economical as the application of Attract to β only if α. and β are equidistant from the target. It follows that either a or b can be attracted by some feature to a position if they are in the same minimal domain at the stage in the derivation before that operation (see §1.4.4). In this chapter I will add a piece of evidence in favor of this, drawing examples from the locative inversion construction in Bantu and in Japanese.

Sluckin, Benjamin L., Silvio Cruschina, and Fabienne Martin. "Locative inversion in Germanic and Romance." In Continuity and Variation in Germanic and Romance, 165–92. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198841166.003.0007.

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This chapter investigates locative inversion (LI) in Germanic and Romance, a subject inversion involving a preposed locative expression. LI appears in two primary types: overt LI and covert LI, where a locative reading obtains without a preposed locative. Covert LI occurs in null-subject languages, where a covert locative argument satisfies formal subject requirements. English LI is always overt, yet French only allows covert LI with verbs of appearance. Furthermore, Romance permits embedded and matrix LI, but English prohibits the former. This chapter proposes that cross-linguistic variation follows from varying conspiracies of syntactic and pragmatico-semantic factors. Firstly, verbs of appearance select a locative covert experiencer, which satisfies the French EPP. Secondly, multiple formal ingredients interact in different distributions to produce various instantiations of LI: an EPP in TP, and the ability of locatives to check: the EPP (Dutch), Subject of Predication (Italian), EPP and SoP (French), and EPP and Topichood (English).

Тези доповідей конференцій з теми "Inversion locative":

Lu, Lu, and Hongming Zhang. "Locative Inversion and Temporal Aspect Marker 'guo in Mandarin." In 2013 International Conference on Advances in Social Science, Humanities, and Management. Paris, France: Atlantis Press, 2013. http://dx.doi.org/10.2991/asshm-13.2013.2.

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Song, Luyi. "A Markedness Differential Approach Towards the Acquisition of English Locative Inversion for Chinese L2 Learners." In 2021 International Conference on Education, Language and Art (ICELA 2021). Paris, France: Atlantis Press, 2022. http://dx.doi.org/10.2991/assehr.k.220131.088.

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Singh, Maniesh, Parmanand Dhermeshwar Thakur, Mariam N. M. Al Baloushi, Haitham Ali Al Saadi, Maisoon M. Al Mansoori, Ahmed S. Al Mesafri, Saif Al Arfi, et al. "Real-Time 3D Ultra Deep Directional Electromagnetic LWD Inversions: An Innovative Approach for Geosteering and Geomapping Water Slumping Movement Around Sub-Seismic Fault, Onshore Abu Dhabi." In Abu Dhabi International Petroleum Exhibition & Conference. SPE, 2021. http://dx.doi.org/10.2118/207478-ms.

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Abstract An Ultra-Deep Directional Electromagnetic LWD Resistivity (UDDE) tool was deployed in a mature Lower Cretaceous carbonate reservoir to map injection water movement. These thick carbonate reservoirs experience injection water preferentially travelling laterally at the top of the reservoir. The water held above oil by negative capillary forces slumps quickly, leading to increasing water cut, eventually killing the natural lift horizontal producing well. Real time 3D and 1D inversions provided important accurate mapping of the non-uniform water fronts and reservoir boundaries, providing insights into reservoir architecture and water movement. The candidate well is located in an area of significant uncertainty regarding fluid distribution and structural elements like sub-seismic faults etc. Pre-well 1D inversion results indicated that the water slumping front away from wellbore can be mapped within a vertical radius of 60-100 ft TVD. However, 1D inversion is not accurate where steeply dipping or discontinuous formations exist due to the presence of faults and is expected to impact well placement, mapping water fronts / formation boundaries and long-term oil recovery. Therefore in the real time, full 3D and 1D inversions of the Ultra-Deep EM data were run to provide high quality reservoir imaging in this complex geometrical setting and deliver improved reservoir fluid distribution and structure mapping. The pre-well inversion modeling optimized the frequency and transmitter-receiver spacing of the UDDE tool. The bottom hole assembly (BHA) configuration also included conventional LWD tools such as Neutron-Density, propagation Resistivity and Gamma Ray. Multiple 3D inversion datasets were processed in real-time using different depths of inversion ranging from 50 ft up to 120 ft depth. The 3D inversion results during the real-time drilling operation detected the non-uniform waterfront boundaries and water slumping up to 80 ft TVD above the wellbore using a slimhole (4¾″) tool. An interpreted sub-seismic down-thrown fault was mapped which controlled the non-uniform slumping fluid distribution, causing the water front to approach closest to the wellbore in this location. This suggests that the fault zone is open and provides a degree of increased permeability around the plane of the fault. The real-time 3D inversion, 1D shallow and 1D deep inversion results showed comparable structural imaging despite being inverted independently of each other. These results permitted updates to the static / dynamic reservoir models and an optimization of the completion design, to delay the water influx and thereby sustain oil production for a longer period of time. Field wide implementation of the UDDE tool and its advanced technology with improved 1D and 3D inversion results will enhance the quality of realtime geosteering, mapping and updating of reservoir models which have challenging water slumping fronts and structural variations. This will enable improvment in well locations, their spacing and finally allowing the proactive design of smart completions for enhanced oil production and improved recovery factors.

Huang, Chao, Liang-guo Dong, and Yu-zhu Liu. "Microseismic source location using full waveform inversion." In SEG 2017 Workshop: Full-waveform Inversion and Beyond, Beijing, China, 20-22 November 2017. Society of Exploration Geophysicists, 2017. http://dx.doi.org/10.1190/fwi2017-037.

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Bernasconi, Giancarlo, and Diego Rovetta. "Bayesian Inversion of Traveltimes for Cavity Location." In Symposium on the Application of Geophysics to Engineering and Environmental Problems 2008. Environment and Engineering Geophysical Society, 2008. http://dx.doi.org/10.4133/1.2963213.

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Bernasconi, Giancarlo, and Diego Rovetta. "Bayesian Inversion Of Traveltimes For Cavity Location." In 21st EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems. European Association of Geoscientists & Engineers, 2008. http://dx.doi.org/10.3997/2214-4609-pdb.177.95.

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Thiel, Michael, Haifeng Wang, Yong-Hua Chen, Mikhail Zaslavsky, Lin Liang, Jean-Michel Denichou, Henning Hoeyland, Brian Gallager, and Nguyen Xuan Phong. "Precise Localization of Offset Wells Crossed With Deep Directional Resistivity Measurements." In 2022 SPWLA 63rd Annual Symposium. Society of Petrophysicists and Well Log Analysts, 2022. http://dx.doi.org/10.30632/spwla-2022-0051.

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New wells drilled in brown oil and gas fields add to the many existing cased wells or wells with liners that have been placed over the years for production and injection. For each existing well, there is an uncertainty associated with its position and the uncertainty increases with measured depth because the well position can only be derived from the survey points. A new well drilled in brown fields can therefore easily cross the ellipse of uncertainty of old horizontal wells. In addition to the risk of collision, it is then not clear how close the planned new well will cross over the existing wells. Deep directional resistivity (DDR) measurements are sensitive to resistivity variations more than 30 m away from wellbore and strongly react if there is a casing or liner within this range. Hence the measurements can be used to localize the casing or liner. However, a casing within a layered reservoir is a complex 3D problem, consequently 1D interpretation is not suited for localizing a crossed casing and only leads to an erroneous estimation of the reservoir extend and resistivity in the vicinity of a crossed casing. However, the problem can often be reasonably well approximated in 2D in certain geometries. This paper presents how existing 2D imaging inversions are adapted to estimate the position and relative azimuth of a crossed cased well. Using a specialized 2D inversion setup, validation against 3D modeling shows that the location of a casing and its relative angle can be reasonably well determined. The 2D inversion result can then serve as an initial guess for an inversion with a 3D code tuned for accurate modeling of crossed casings which further refines the estimated position of the crossed well. The outlined workflow can also be adapted in the future for the detection of a cased well before it is crossed. The outlined workflow is applied to two wells, both drilled in mature fields, and reveals the position, the distance, and the relative angle of the crossed wells with high confidence.

Zhang, Zhen, Xupeng He, Yiteng Li, Marwa AlSinan, Hyung Kwak, and Hussein Hoteit. "Locating CO2 Leakage in Subsurface Traps Using Bayesian Inversion and Deep Learning." In Middle East Oil, Gas and Geosciences Show. SPE, 2023. http://dx.doi.org/10.2118/213522-ms.

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Abstract Geologic CO2 sequestration (GCS) is a promising engineering measure to reduce global greenhouse emissions. However, accurate detection of CO2 leakage locations from underground traps remains a challenging problem. This study proposes a workflow that combines Bayesian inversion and deep learning algorithms to detect the sites of CO2 leakage. There are four main steps in the workflow. Step 1: we identify the key uncertainty parameters. Here we mean the CO2 leakage location. Then we get the training set using Latin Hypercube Sampling (LHS) method and perform the high-fidelity simulation using CMG. Step 2: we train the surrogate model using the data set collected from the last step, in which the Bayesian optimization is used to tune the hyperparameters automatically. Step 3: we perform the Bayesian inversion to invert the CO2 leakage location, in which the surrogate serves as the forward model to reduce the computational expense. Step 4: we feed the inverted CO2 leakage location into the high-fidelity model to produce the pressure response. If the error between the pressure response between the surrogate and the high-fidelity model is small enough, the solution is accepted. Otherwise, the accuracy of the surrogate model and the convergence of the Bayesian inversion process are revisited. We validate this method using a synthetic model of CO2 injection. Results show that the proposed Bayesian inversion assisted by the deep learning algorithm can accurately detect the CO2 leakage location with narrow uncertainties. This approach provides an accurate and efficient way to detect CO2 leakage locations in real-time applications.

Zhang*, Pan, Liguo Han, Han Gao, and Hongyu Sun. "Genetic algorithm full waveform inversion for microseismic location." In SEG Technical Program Expanded Abstracts 2015. Society of Exploration Geophysicists, 2015. http://dx.doi.org/10.1190/segam2015-5802979.1.

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Tian*, Xiao, Wei Zhang, and Jie Zhang. "Cross double-difference inversion method for microseismic location." In SEG Technical Program Expanded Abstracts 2015. Society of Exploration Geophysicists, 2015. http://dx.doi.org/10.1190/segam2015-5861908.1.

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Звіти організацій з теми "Inversion locative":

BALLARD, SANFORD. Seismic Event Location Using Levenberg-Marquardt Least Squares Inversion. Office of Scientific and Technical Information (OSTI), October 2002. http://dx.doi.org/10.2172/803290.

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Day, D. M., and G. A. Newman. Inversion of Passive Electromagnetic Fields to Locate Weapons of Mass Destruction. Office of Scientific and Technical Information (OSTI), December 1998. http://dx.doi.org/10.2172/2605.

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Syracuse, Ellen Marie, Monica Maceira, William Scott Phillips, Michael Lee Begnaud, Stuart Nippress, Eric Bergman, and Haijiang Zhang. Improvements in Earthquake Location from Joint Inversion of Seismic and Gravity Observations – Application to the Iran Region. Office of Scientific and Technical Information (OSTI), July 2016. http://dx.doi.org/10.2172/1291183.

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Grossman, A., C. F. Molenkamp, and K. E. Grant. A Fast Running Test Bed Model to Evaluate Atmospheric Plume Source Properties II: Source Location Inversion Sensitivity Tests. Office of Scientific and Technical Information (OSTI), June 2001. http://dx.doi.org/10.2172/15007619.

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Zhang, Zhishuai. Summer Intern Report: Multiple-Event Seismic Location Using Bayesian Inversion: Case Study Using Newberry Enhanced Geothermal System Data. Office of Scientific and Technical Information (OSTI), February 2015. http://dx.doi.org/10.2172/1438634.

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Prasad, Kuldeep R., Adam L. Pintar, Heming Hu, Israel Lopez Coto, Dennis T. Ngo, and James R. Whetstone. Greenhouse Gas Emissions and Dispersion 3. Reducing Uncertainty in Estimating Source Strength and Location through Plume Inversion Models. National Institute of Standards and Technology, September 2015. http://dx.doi.org/10.6028/nist.sp.1175.

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Liu, X., Z. Chen, and S. E. Grasby. Using shallow temperature measurements to evaluate thermal flux anomalies in the southern Mount Meager volcanic area, British Columbia, Canada. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/330009.

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Geothermal is a clean and renewable energy resource. However, locating where elevated thermal gradient anomalies exist is a significant challenge when trying to assess potential resource volumes during early exploration of a prospective geothermal area. In this study, we deployed 22 temperature probes in the shallow subsurface along the south flank of the Mount Meager volcanic complex, to measure the transient temperature variation from September 2020 to August 2021. In our data analysis, a novel approach was developed to estimate the near-surface thermal distribution, and a workflow and code with python language have been completed for the thermal data pre-processing and analysis. The long-term temperature variation at different depths can be estimated by modelling, so that the relative difference of deducing deeper geothermal gradient anomalies can be assessed. Our proposed inversion and simulation methods were applied to calculating the temperature variation at 2.0 meters depth. The results identified a preferred high thermal flux anomalous zone in the south Mount Meager area. By combining with previous studies, the direct analysis and estimation of anomalous thermal fields based on the collected temperature data can provide a significant reference for interpretation of the regional thermal gradient variation.

Plourde, A. P., and J. F. Cassidy. Mapping tectonic stress at subduction zones with earthquake focal mechanisms: application to Cascadia, Japan, Nankai, Mexico, and northern Chile. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/330943.

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Earthquake focal mechanisms have contributed substantially to our understanding of modern tectonic stress regimes, perhaps more than any other data source. Studies generally group focal mechanisms by epicentral location to examine variations in stress across a region. However, stress variations with depth have rarely been considered, either due to data limitations or because they were believed to be negligible. This study presents 3D grids of tectonic stress tensors using existing focal mechanism catalogs from several subduction zones, including Cascadia, Japan, Nankai, Mexico, and northern Chile. We bin data into 50 x 50 x 10 km cells (north, east, vertical), with 50% overlap in all three directions. This resulted in 181380 stress inversions, with 90% of these in Japan (including Nankai). To the best of our knowledge, this is the first examination of stress changes with depth in several of these regions. The resulting maps and cross-sections of stress can help distinguish locked and creeping segments of the plate interface. Similarly, by dividing the focal mechanism catalog in northern Japan into those before and those &gt;6 months after the 2011 Mw 9.1 Tohoku-Oki earthquake, we are able to produce detailed 3D maps of stress rotation, which is close to 90° near the areas of highest slip. These results could inform geodynamic rupture models of future megathrust earthquakes in order to more accurately estimate slip, shaking, and seismic hazard. Southern Cascadia and Nankai appear to have sharp stress discontinuities at ~20 km depth, and northern Cascadia may have a similar discontinuity at ~30 km depth. These stress boundaries may relate to rheological discontinuities in the forearc, and may help us unravel how forearc composition influences subduction zone behaviour and seismic hazard.