Auswahl der wissenschaftlichen Literatur zum Thema „Leech River Complex“

The LITHOPROBE seismic reflection project on Vancouver Island was designed to study the large-scale structure of several accreted terranes exposed on the island and to determine the geometry and structural characteristics of the subducting Juan de Fuca plate. In this paper, we interpret two LITHOPROBE profiles from southernmost Vancouver Island that were shot across three important terrane-bounding faults—Leech River, San Juan, and Survey Mountain—to determine their subsurface geometry and relationship to deeper structures associated with modem subduction.The structure beneath the island can be divided into an upper crustal region, consisting of several accreted terranes, and a deeper region that represents a landward extension of the modern offshore subduction complex. In the upper region, the Survey Mountain and Leech River faults are imaged as northeast-dipping thrusts that separate Wrangellia, a large Mesozoic–Paleozoic terrane, from two smaller accreted terranes: the Leech River schist, Mesozoic rocks that were metamorphosed in the Late Eocene; and the Metchosin Formation, a Lower Eocene basalt and gabbro unit. The Leech River fault, which was clearly imaged on both profiles, dips 35–45 °northeast and extends to about 10 km depth. The Survey Mountain fault lies parallel to and above the Leech River fault and extends to similar depths. The San Juan fault, the western continuation of the Survey Mountain fault, was not imaged, although indirect evidence suggests that it also is a thrust fault. These faults accommodated the Late Eocene amalgamation of the Leech River and Metchosin terranes along the southern perimeter of Wrangellia. Thereafter, these terranes acted as a relatively coherent lid for a younger subduction complex that has formed during the modem (40 Ma to present) convergent regime.Within this subduction complex, the LITHOPROBE profiles show three prominent bands of differing reflectivity that dip gently northeast. These bands represent regionally extensive layers lying beneath the lid of older accreted terranes. We interpret them as having formed by underplating of oceanic materials beneath the leading edge of an overriding continental place. The upper reflective layer can be projected updip to the south, where it is exposed in the Olympic Mountains as the Core rocks, an uplifted Cenozoic subduction complex composed dominantly of accreted marine sedimentary rocks. A middle zone of low reflectivity is not exposed at the surface, but results from an adjacent refraction survey indicate it is probably composed of relatively high velocity materials (~ 7.7 km/s). We consider two possibilities for the origin of this zone: (1) a detached slab of oceanic lithosphere accreted during an episodic tectonic event or (2) an imbricated package of mafic rocks derived by continuous accretion from the top of the subducting oceanic crust. The lower reflective layer is similar in reflection character to the upper layer and, therefore, is also interpreted as consisting dominantly of accreted marine sedimentary rocks. It represents the active zone of decoupling between the overriding and underthrusting plates and, thus, delimits present accretionary processes occurring directly above the descending Juan de Fuca plate. These results provide the first direct evidence for the process of subduction underplating or subcretion and illustrate a process that is probably important in the evolution and growth of continents.

A low-pass filtered aeromagnetic map of southern Vancouver Island is inverted into a magnetization-contrast map that illustrates the lateral variations in the magnetization of the crust. The Island Intrusions and the West Coast Crystalline Complex are characterized by high magnetization relative to the other lithologic groups. The Island Intrusions form an almost continuous pluton in the deeper part of the crust. The low-magnetic Leech River Formation thickens northward. The almost uniform magnetic signature of the Leech River Formation in the east–west direction indicates that the crustal structure revealed from the Lithoprobe seismic results is typical throughout the formation west of the Survey Mountain fault. A low-magnetic zone, elongated in the northwest–southeast direction, cuts through the high-magnetic Metchosin basalts from the southern tip of the island to the Leech River fault. It coincides with the Sooke gabbros exposed in the southern tip of the island, implying that the gabbros probably cut the entire Metchosin basalts at depth.

Rocks formerly mapped as Leech River Formation can be subdivided into two partly coeval rock units with completely different histories. The Upper Jurassic – Lower(?) Cretaceous Pandora Peak unit, which comprises black mudstone, terrigenous greywacke, radiolarian ribbon chert, green tuff, metabasaltic greenstone, minor pebbly mudstone, and a few blocks of limestone, was probably deposited in small basins on a continental margin. Local stratal disruption occurred before sediments were lithified. A static, high-pressure, low-temperature metamorphism produced lawsonite-bearing assemblages in metaclastic rocks. The Pandora Peak unit was originally coextensive with the Pacific Rim complex on western Vancouver Island and the Constitution formation in the San Juan Islands of Washington. The Leech River complex consists of foliated metasandstone, phyllite, and minor metabasalt of probable Jurassic–Cretaceous age. Multiple folding, transposition, and synkinematic greenschist- to amphibolite-facies metamorphism culminated about 40 Ma.The Pandora Peak unit is separated from crystalline rocks of the Wrangellia terrane by major faults. In southeast Victoria, partly retrograded amphibolites of the Wark–Colquitz complex overlie locally cataclastic lawsonite-bearing Pandora Peak rocks along the newly discovered Trial Islands thrust. A similar thrust separates the two units in Finlayson Arm, but near Port Renfrew the Pandora Peak terrane and crystalline West Coast complex are juxtaposed along the high-angle San Juan Fault. In each of these areas, emplacement of the Pandora Peak unit postdated the high-pressure (lawsonite-grade) metamorphism, which occurred between late Albian – early Cenomanian and Santonian–Campanian time (approximately 99–83 Ma). The Pandora Peak terrane was emplaced during a major Late Cretaceous or early Tertiary tectonic event that modified and probably truncated the southern margin of the Wrangellia terrane. Following this event the Leech River complex was faulted against the southern margin of the Pandora Peak terrane near Port Renfrew and in Goldstream Park in the Late Eocene or Early Oligocene.

With significant development of sensors and Internet of things, researchers nowadays can easily know what happens in physical space by acquiring time-varying values of various factors. Essentially, growing data category and size greatly contribute to solve problems happened in physical space. In this paper, we aim to solve a complex problem that affects both cities and villages, i.e., flood. To reduce impacts induced by floods, hydrological factors acquired from physical space and data-driven models in cyber space have been adopted to accurately forecast floods. Considering the significance of modeling attention capability among hydrology factors, we believe extraction of discriminative hydrology factors not only reflect natural rules in physical space, but also optimally model iterations of factors to forecast run-off values in cyber space. Therefore, we propose a novel data-driven model named as STA-LSTM by integrating Long Short-Term Memory (LSTM) structure and spatiotemporal attention module, which is capable of forecasting floods for small- and medium-sized rivers. The proposed spatiotemporal attention module firstly explores spatial relationship between input hydrological factors from different locations and run-off outputs, which assigns time-varying weights to various factors. Afterwards, the proposed attention module allocates temporal-dependent weights to hidden output of each LSTM cell, which describes significance of state output for final forecasting results. Taking Lech and Changhua river basins as cases of physical space, several groups of comparative experiments show that STA-LSTM is capable to optimize complexity of mathematically modeling floods in cyber space.

The representative of the genus Jaera Leach inhabiting continental waters throughout Europe has a rather complex taxonomic history. After discovering it in the River Tisza, Hungary, Dudich (1930) identified it as Jaera nordmanni (Rathke). This emerged to be a mistake, as the species was found to be identical with the subsequently described Jaera sarsi Valkanov (Kesselyák 1938). On the contrary, Veuille (1979) argued that the freshwater form is different from the brackish water species J. sarsi, and described it as a new species, J. istri Veuille, 1979. The new terminology has become widely used; however, recently the concept received criticism, implying that the characteristics distinguishing J. istri from J. sarsi fall within the confines of intraspecific variability (Tobias et al. 2005). Here I tentatively accept the latter point of view, and will refer to the species as J. sarsi in the following, but I also wish to point out that this matter could be settled using molecular methods.

Human mobility has been vigorously debated as a key factor for the spread of bronze technology and profound changes in burial practices as well as material culture in central Europe at the transition from the Neolithic to the Bronze Age. However, the relevance of individual residential changes and their importance among specific age and sex groups are still poorly understood. Here, we present ancient DNA analysis, stable isotope data of oxygen, and radiogenic isotope ratios of strontium for 84 radiocarbon-dated skeletons from seven archaeological sites of the Late Neolithic Bell Beaker Complex and the Early Bronze Age from the Lech River valley in southern Bavaria, Germany. Complete mitochondrial genomes documented a diversification of maternal lineages over time. The isotope ratios disclosed the majority of the females to be nonlocal, while this is the case for only a few males and subadults. Most nonlocal females arrived in the study area as adults, but we do not detect their offspring among the sampled individuals. The striking patterns of patrilocality and female exogamy prevailed over at least 800 y between about 2500 and 1700 BC. The persisting residential rules and even a direct kinship relation across the transition from the Neolithic to the Bronze Age add to the archaeological evidence of continuing traditions from the Bell Beaker Complex to the Early Bronze Age. The results also attest to female mobility as a driving force for regional and supraregional communication and exchange at the dawn of the European metal ages.

This paper argues that illegitimacy is a concept that relates to almost all of the fundamental ways in which Western society has traditionally organised itself. Sex, family and marriage, and the power of the church and state, are all implicated in the various ways in which society reproduces itself from generation to generation. All employ the concepts of legitimacy and illegitimacy to define what is and what is not permissible. Further, the creation of the illegitimate can occur in more or less legitimate ways; for example, through acts of consent, on the one hand; and force, on the other. This paper uses the study of an English Renaissance text, Shakespeare’s Henry V, to argue that these concepts remain potent ones, regularly invoked as a means of identifying and denouncing perceived threats to the good ordering of the social fabric. In western societies, many of which may be constructed as post-marriage, illegitimate is often applied as a descriptor to unlicensed migrants, refugees and asylum seekers. In countries subject to war and conflict, rape as a war crime is increasingly used by armies to create fractures within the subject community and to undermine the paternity of a cohort of children. In societies where extramarital sex is prohibited, or where rape has been used as a weapon of war, the bastard acts as physical evidence that an unsanctioned act has been committed and the laws of society broken, a “failure in social control” (Laslett, Oosterveen and Smith, 5). This paper explores these themes, using past conceptions of the illegitimate and bastardy as an explanatory concept for problematic aspects of legitimacy in contemporary culture.Bastardy was a particularly important issue in sixteenth and seventeenth century Europe when an individual’s genealogy was a major determining factor of social status, property and identity (MacFarlane). Further, illegitimacy was not necessarily an aspect of a person’s birth. It could become a status into which they were thrust through the use of divorce, for example, as when Henry VIII illegitimised his daughter Mary after annulling his marriage to Mary’s mother, Catherine of Aragon. Alison Findlay’s study of illegitimacy in Renaissance literature lists over 70 portrayals of illegitimacy, or characters threatened with illegitimacy, between 1588 and 1652 (253–257). In addition to illegitimacy at an individual level however, discussions around what constitutes the “illegitimate” figure in terms of its relationship with the family and the wider community, are also applicable to broader concerns over national identity. In work such as Stages of History, Phyllis Rackin dissected images of masculine community present in Shakespeare’s history plays to expose underlying tensions over gender, power and identity. As the study of Henry V indicates in the following discussion, illegitimacy was also a metaphor brought to bear on issues of national as well as personal identity in the early modern era. The image of the nation as a “family” to denote unity and security, both then and now, is rendered complex and problematic by introducing the “illegitimate” into that nation-family image. The rhetoric used in the recent debate over the Scottish independence referendum, and in Australia’s ongoing controversy over “illegitimate” migration, both indicate that the concept of a “national bastard”, an amorphous figure that resists precise definition, remains a potent rhetorical force. Before turning to the detail of Henry V, it is useful to review the use of “illegitimate” in the early modern context. Lacking an established position within a family, a bastard was in danger of being marginalised and deprived of any but the most basic social identity. If acknowledged by a family, the bastard might become a drain on that family’s economic resources, drawing money away from legitimate children and resented accordingly. Such resentment may be reciprocated. In his essay “On Envy” the scientist, author, lawyer and eventually Lord Chancellor of England Francis Bacon explained the destructive impulse of bastardy as follows: “Deformed persons, and eunuchs, and old men, and bastards, are envious. For he that cannot possibly mend his own case will do what he can to impair another’s.” Thus, bastardy becomes a plot device which can be used to explain and to rationalise evil. In early modern English literature, as today, bastardy as a defect of birth is only one meaning for the word. What does “in everything illegitimate” (quoting Shakespeare’s character Thersites in Troilus and Cressida [V.viii.8]) mean for our understanding of both our own society and that of the late sixteenth century? Bastardy is an important ideologeme, in that it is a “unit of meaning through which the ‘social space’ constructs the ideological values of its signs” (Schleiner, 195). In other words, bastardy has an ideological significance that stretches far beyond a question of parental marital status, extending to become a metaphor for national as well as personal loss of identity. Anti-Catholic polemicists of the early sixteenth century accused priests of begetting a generation of bastards that would overthrow English society (Fish, 7). The historian Polydore Vergil was accused of suborning and bastardising English history by plagiarism and book destruction: “making himself father to other men’s works” (Hay, 159). Why is illegitimacy so important and so universal a metaphor? The term “bastard” in its sense of mixture or mongrel has been applied to language, to weaponry, to almost anything that is a distorted but recognisable version of something else. As such, the concept of bastardy lends itself readily to the rhetorical figure of metaphor which, as the sixteenth century writer George Puttenham puts it, is “a kind of wresting of a single word from his owne right signification, to another not so natural, but yet of some affinitie or coueniencie with it” (Puttenham, 178). Later on in The Art of English Poesie, Puttenham uses the word “bastard” to describe something that can best be recognised as being an imperfect version of something else: “This figure [oval] taketh his name of an egge […] and is as it were a bastard or imperfect rounde declining toward a longitude.” (101). “Bastard” as a descriptive term in this context has meaning because it connects the subject of discussion with its original. Michael Neill takes an anthropological approach to the question of why the bastard in early modern drama is almost invariably depicted as monstrous or evil. In “In everything illegitimate: Imagining the Bastard in Renaissance Drama,” Neill argues that bastards are “filthy”, using the term as it is construed by Mary Douglas in her work Purity and Danger. Douglas argues that dirt is defined by being where it should not be, it is “matter in the wrong place, belonging to ‘a residual category, rejected from our normal scheme of classifications,’ a source of fundamental pollution” (134). In this argument the figure of the bastard aligns strongly with the concept of the Other (Said). Arguably, however, the anthropologist Edmund Leach provides a more useful model to understand the associations of hybridity, monstrosity and bastardy. In “Animal Categories and Verbal Abuse”, Leach asserts that our perceptions of the world around us are largely based on binary distinctions; that an object is one thing, and is not another. If an object combines attributes of itself with those of another, the interlapping area will be suppressed so that there may be no hesitation in discerning between them. This repressed area, the area which is neither one thing nor another but “liminal” (40), becomes the object of fear and of fascination: – taboo. It is this liminality that creates anxiety surrounding bastards, as they occupy the repressed, “taboo” area between family and outsiders. In that it is born out of wedlock, the bastard child has no place within the family structure; yet as the child of a family member it cannot be completely relegated to the external world. Michael Neill rightly points out the extent to which the topos of illegitimacy is associated with the disintegration of boundaries and a consequent loss of coherence and identity, arguing that the bastard is “a by-product of the attempt to define and preserve a certain kind of social order” (147). The concept of the liminal figure, however, recognises that while a by-product can be identified and eliminated, a bastard can neither be contained nor excluded. Consequently, the bastard challenges the established order; to be illegitimate, it must retain its connection with the legitimate figure from which it diverges. Thus the illegitimate stands as a permanent threat to the legitimate, a reminder of what the legitimate can become. Bastardy is used by Shakespeare to indicate the fear of loss of national as well as personal identity. Although noted for its triumphalist construction of a hero-king, Henry V is also shot through with uncertainties and fears, fears which are frequently expressed using illegitimacy as a metaphor. Notwithstanding its battle scenes and militarism, it is the lawyers, genealogists and historians who initiate and drive forward the narrative in Henry V (McAlindon, 435). The reward of the battle for Henry is not so much the crown of France as the assurance of his own legitimacy as monarch. The lengthy and legalistic recital of genealogies with which the Archbishop of Canterbury proves to general English satisfaction that their English king Henry holds a better lineal right to the French throne than its current occupant may not be quite as “clear as is the summer sun” (Henry V 1.2.83), but Henry’s question about whether he may “with right and conscience” make his claim to the French throne elicits a succinct response. The churchmen tell Henry that, in order to demonstrate that he is truly the descendant of his royal forefathers, Henry will need to validate that claim. In other words, the legitimacy of Henry’s identity, based on his connection with the past, is predicated on his current behaviour:Gracious lord,Stand for your own; unwind your bloody flag;Look back into your mighty ancestors:Go, my dread lord, to your great-grandsire’s tomb,From whom you claim; invoke his warlike spirit…Awake remembrance of these valiant dead,And with your puissant arm renew their feats:You are their heir, you sit upon their throne,The blood and courage that renowned themRuns in your veins….Your brother kings and monarchs of the earthDo all expect that you should rouse yourselfAs did the former lions of your blood. (Henry V 1.2.122 – 124)These exhortations to Henry are one instance of the importance of genealogy and its immediate connection to personal and national identity. The subject recurs throughout the play as French and English characters both invoke a discourse of legitimacy and illegitimacy to articulate fears of invasion, defeat, and loss of personal and national identity. One particular example of this is the brief scene in which the French royalty allow themselves to contemplate the prospect of defeat at the hands of the English:Fr. King. ‘Tis certain, he hath pass’d the river Somme.Constable. And if he be not fought withal, my lord,Let us not live in France; let us quit all,And give our vineyards to a barbarous people.Dauphin. O Dieu vivant! shall a few sprays of us,The emptying of our fathers’ luxury,Our scions, put in wild and savage stock,Spirt up so suddenly into the clouds,And overlook their grafters?Bourbon. Normans, but bastard Normans, Norman bastards!...Dauphin. By faith and honour,Our madams mock at us, and plainly sayOur mettle is bred out; and they will giveTheir bodies to the lust of English youthTo new-store France with bastard warriors. (Henry V 3.5.1 – 31).Rape and sexual violence pervade the language of Henry V. France itself is constructed as a sexually vulnerable female with “womby vaultages” and a “mistress-court” (2.4.131, 140). In one of his most famous speeches Henry graphically describes the rape and slaughter that accompanies military defeat (3.3). Reading Henry V solely in terms of its association of military conquest with sexual violence, however, runs the risk of overlooking the image of bastards themselves as both the threat and the outcome of national defeat. The lines quoted above exemplify the extent to which illegitimacy was a vital metaphor within early modern discourses of national as well as personal identity. Although the lines are divided between various speakers – the French King, Constable (representing the law), Dauphin (the Crown Prince) and Bourbon (representing the aristocracy) – the images develop smoothly and consistently to express English dominance and French subordination, articulated through images of illegitimacy.The dialogue begins with the most immediate consequence of invasion and of illegitimacy: the loss of property. Legitimacy, illegitimacy and property were so closely associated that a case of bastardy brought to the ecclesiastical court that did not include a civil law suit about land was referred to as a case of “bastardy speciall”, and the association between illegitimacy and property is present in this speech (Cowell, 14). The use of the word “vine” is simultaneously a metonym for France and a metaphor for the family, as in the “family tree”, conflating the themes of family identity and national identity that are both threatened by the virile English forces.As the dialogue develops, the rhetoric becomes more elaborate. The vines which for the Constable (from a legal perspective) represented both France and French families become instead an attempt to depict the English as being of a subordinate breed. The Dauphin’s brief narrative of the English origins refers to the illegitimate William the Conqueror, bastard son of the Duke of Normandy and by designating the English as being descendants of a bastard Frenchman the Dauphin attempts to depict the English nation as originating from a superabundance of French virility; wild offshoots from a true stock. Yet “grafting” one plant to another can create a stronger plant, which is what has happened here. The Dauphin’s metaphors, designed to construct the English as an unruly and illegitimate offshoot of French society, a product of the overflowing French virility, evolve instead into an emblem of a younger, stronger branch which has overtaken its enfeebled origins.In creating this scene, Shakespeare constructs the Frenchmen as being unable to contain the English figuratively, still less literally. The attempts to reduce the English threat by imagining them as “a few sprays”, a product of casual sexual excess, collapses into Bourbon’s incoherent ejaculation: “Normans, but bastard Normans, Norman bastards!” and the Norman bastard dominates the conclusion of the scene. Instead of containing and marginalising the bastard, the metaphoric language creates and acknowledges a threat which cannot be marginalised. The “emptying of luxury” has engendered an uncontrollable illegitimate who will destroy the French nation beyond any hope of recovery, overrunning France with bastards.The scene is fascinating for its use of illegitimacy as a means of articulating fears not only for the past and present but also for the future. The Dauphin’s vision is one of irreversible national and familial disintegration, irreversible because, unlike rape, the French women’s imagined rejection of their French families and embrace of the English conquerors implies a total abandonment of family origins and the willing creation of a new, illegitimate dynasty. Immediately prior to this scene the audience has seen the Dauphin’s fear in action: the French princess Katherine is shown learning to speak English as part of her preparation for giving her body to a “bastard Norman”, a prospect which she anticipates with a frisson of pleasure and humour, as well as fear. This scene, between Katherine and her women, evokes a range of powerful anxieties which appear repeatedly in the drama and texts of the sixteenth and early seventeenth centuries: anxieties over personal and national identity, over female chastity and masculine authority, and over continuity between generations. Peter Laslett in The World We Have Lost – Further Explored points out that “the engendering of children on a scale which might threaten the social structure was never, or almost never, a present possibility” (154) at this stage of European history. This being granted, the Dauphin’s depiction of such a “wave” of illegitimates, while it might have no roots in reality, functioned as a powerful image of disorder. Illegitimacy as a threat and as a strategy is not limited to the renaissance, although a study of renaissance texts offers a useful guidebook to the use of illegitimacy as a means of polarising and excluding. Although as previously discussed, for many Western countries, the marital status of one’s parents is probably the least meaningful definition associated with the word “illegitimate”, the concept of the nation as a family remains current in modern political discourse, and illegitimate continues to be a powerful metaphor. During the recent independence referendum in Scotland, David Cameron besought the Scottish people not to “break up the national family”; at the same time, the Scottish Nationalists have been constructed as “ungrateful bastards” for wishing to turn their backs on the national family. As Klocker and Dunne, and later O’Brien and Rowe, have demonstrated, the emotive use of words such as “illegitimate” and “illegal” in Australian political rhetoric concerning migration is of long standing. Given current tensions, it might be timely to call for a further and more detailed study of the way in which the term “illegitimate” continues to be used by politicians and the media to define, demonise and exclude certain types of would-be Australian immigrants from the collective Australian “national family”. Suggestions that persons suspected of engaging with terrorist organisations overseas should be stripped of their Australian passports imply the creation of national bastards in an attempt to distance the Australian community from such threats. But the strategy can never be completely successful. Constructing figures as bastard or the illegitimate remains a method by which the legitimate seeks to define itself, but it also means that the bastard or illegitimate can never be wholly separated or cast out. In one form or another, the bastard is here to stay.ReferencesBeardon, Elizabeth. “Sidney's ‘Mongrell Tragicomedy’ and Anglo-Spanish Exchange in the New Arcadia.” Journal for Early Modern Cultural Studies 10 (2010): 29 - 51.Davis, Kingsley. “Illegitimacy and the Social Structure.” American Journal of Sociology 45 (1939).John Cowell. The Interpreter. Cambridge: John Legate, 1607.Greenblatt, Stephen. Renaissance Self-Fashioning: From More to Shakespeare. 1980. Chicago: University of Chicago Press, 2005.Findlay, Alison. Illegitimate Power: Bastards in Renaissance Drama. Manchester: Manchester University Press, 2009.Hay, Denys. Polydore Vergil: Renaissance Historian and Man of Letters. Oxford: Clarendon Press, 1952.Laslett, Peter. The World We Have Lost - Further Explored. London: Methuen, 1983.Laslett, P., K. Oosterveen, and R. M. Smith, eds. Bastardy and Its Comparative History. London: Edward Arnold, 1980.Leach, Edmund. “Anthropological Aspects of Language: Animal Categories and Verbal Abuse.” E. H. Lennenberg, ed. New Directives in the Study of Language. MIT Press, 1964. 23-63. MacFarlane, Alan. The Origins of English Individualism: The Family Property and Social Transition Oxford: Basil Blackwell, 1978.Mclaren, Ann. “Monogamy, Polygamy and the True State: James I’s Rhetoric of Empire.” History of Political Thought 24 (2004): 446 – 480.McAlindon, T. “Testing the New Historicism: “Invisible Bullets” Reconsidered.” Studies in Philology 92 (1995):411 – 438.Neill, Michael. Putting History to the Question: Power, Politics and Society in English Renaissance Drama. New York: Columbia University Press, 2000.Pocock, J.G.A. Virtue, Commerce and History: Essays on English Political Thought and History, Chiefly in the Eighteenth Century. Cambridge: Cambridge University Press, 1985. Puttenham, George. The Arte of English Poesie. Ed. Gladys Doidge Willcock and Alice Walker. Cambridge: Cambridge University Press, 1936.Reekie, Gail. Measuring Immorality: Social Inquiry and the Problem of Illegitimacy. Cambridge: Cambridge University Press, 1998. Rowe, Elizabeth, and Erin O’Brien. “Constructions of Asylum Seekers and Refugees in Australian Political Discourse”. In Kelly Richards and Juan Marcellus Tauri, eds., Crime Justice and Social Democracy: Proceedings of the 2nd International Conference. Brisbane: Queensland University of Technology, 2013.Schleiner, Louise. Tudor and Stuart Women Writers. Bloomington: Indiana University Press, 1994.Shakespeare, William. Henry V in The Norton Shakespeare. Ed. S. Greenblatt, W. Cohen, J.E. Howard, and Katharine Eisaman Maus. New York and London: Norton, 2008.

The Pacific Rim Terrane in British Columbia is a group of fault-bound forearc metasedimentary and metaigneous rocks subcreted to Wrangellia, comprising three lithological units: the Leech River Complex (LRC), the Pandora Peak Unit (PPU), and the Pacific Rim Complex. Of these three, the LRC and PPU were subject to an elevated thermal metamorphic event which locally overprinted typical low temperature, medium pressure forearc assemblages with low greenschist through amphibolite facies assemblages. The field study shows that biotite, garnet and staurolite isograds occur concentrically in the LRC, centered on the Leech River fault, which separates the Pacific Rim Terrane from the underlying Metchosin Igneous Complex of the Crescent terrane. Local thermal overprint in the PPU is sub-biotitic and is characterized by local replacement of prehnite-pumpellyite and lawsonite-bearing assemblages with muscovite ± chlorite. Multi-method geothermobarometry shows peak metamorphic temperatures from ~230 °C in the northern PPU to ~600 °C near the Leech River fault at ~4 kbar, and isotherms are continuous across the LRC-PPU boundary. The interfoliated Tripp Creek metabasites and Eocene Walker Creek intrusions do not control the distribution of isotherms, and syn-metamorphic felsic sills rarely have contact aureoles. Intercalated metabasites show two distinct rare earth element (REE) patterns, including NMORB-like light REE depletion among most Tripp Creek metabasites, and light REE enrichment in PPU metabasites. The lack of thermal aureoles associated with metabasites, and interlayered garnetite bands with negative Ce-anomalies attributed to seafloor hydrothermal processes, suggest the Tripp Creek metabasites are not syn-metamorphic sills and formed prior to accretion. The subcretion of then recently formed oceanic crust belonging to the Crescent terrane is identified as the probable cause of anomalously high temperature forearc conditions, as well as possible proximity to an Eocene mid ocean ridge. The high temperature metamorphic rocks in the Pacific Rim Terrane document the conversion of inherited primary pyrite to pyrrhotite in carbonaceous metasediments. S-inclusive pseudosections for LRC protoliths predict a low temperature (<420 °C) narrow pyrite desulfidation window that produces pyrrhotite and releases negligible S to the fluid phase. Conversely, sulfide petrography in the LRC shows pyrite can persist up to ~550 °C as inclusions in andalusite and staurolite porphyroblasts, as well as possibly in the rock matrix. S contents in carbonaceous pelites show a marked reduction at medium grade, associated with a dearth of visible sulfide in LRC phyllites. Sluggish pyrite desulfidation, pyrrhotite desulfidation, and terrane-scale S mobility are interpreted as the driver for mobility of intra-terrane sourced Au, leading to the formation of a hypozonal orogenic Au deposit in the central LRC.
Graduate
2022-06-11

The THOR® fluidized bed steam reforming process has been successfully operated for more than 10 years in the United States for the treatment of low- and intermediate-level radioactive wastes generated by commercial nuclear power plants. The principle waste stream that has been treated is ion exchange resins (IER) and Dry Active Waste (DAW), but various liquids, sludges, and solid organic wastes have also been treated. The principle advantages of the THOR® process include: (a) high volume reduction on the order of 5:1 to 10:1 for IER and up to 50:1 for high plastic content DAW streams depending on the waste type and waste characteristics, (b) environmentally compliant off-gas emissions, (c) reliable conversion of wastes into mineralized products that are durable and leach-resistant, and (d) no liquid effluents for treatment of most radioactive wastes. Over the past ten years, the THOR® process has been adapted for the treatment of more complex wastes including historic defense wastes, reprocessing wastes, and other wastes associated with the fuel cycle. As part of the U.S. Department of Energy (DOE) environmental remediation activities, the THOR® dual bed steam reforming process has successfully processed: (a) Idaho National Laboratory (INL) Sodium-Bearing Waste (SBW), (b) Savannah River Tank 48 High Level Waste (HLW), (c) Hanford Low Activity Waste (LAW), and (d) Hanford Waste Treatment Plant Secondary Waste (WTP-SW) liquid slurry simulants. The THOR® process has been shown in pilot plant operations to successfully process various simulated liquid, radioactive, nitrate-containing wastes into environmentally safe, leach-resistant, solid mineralized products. These mineralized products incorporate normally soluble ions (e.g. - Na, K, Cs, Tc), sulfates, chloride salts, and fluoride salts into an alkali alumino-silicate mineral matrix that inhibits the leaching of those ions into the environment. The solid mineralized products produced by the THOR® process exhibit durability and leach resistance characteristics superior to borosilicate waste glasses. As a result of this work, a full-scale THOR® process facility is currently under construction at the DOE’s Idaho site for the treatment of SBW and a full-scale facility is in the final design stage for the DOE’s Savannah River Site for the treatment of Tank 48 high level waste. Recent work has focused on the development of new monolithic waste formulations, the extension of the THOR® process to new waste streams, and the development of modular THOR® processes for niche waste treatment applications. This paper will provide an overview of current THOR® projects and summarize the processes and outcomes of the regulatory and safety reviews that have been necessary for the THOR® process to gain acceptance in the USA.