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Autore: Grafiati

Pubblicato: 22 giugno 2024

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1

Al-Hahidi, Abdullah. "Planktonic Foraminiferal Biostratigrapy of Shiranish Formation in Makhmur Well No. (1), Makhmur Area, Northern Iraq". Iraqi National Journal of Earth Sciences 10, n. 2 (28 dicembre 2010): 19–28. http://dx.doi.org/10.33899/earth.2010.5516.

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2

Karmini, Mimin, e H. Yuniarto. "BIOSTRATIGRAFI FORAMINIFERA KUARTER PADA BOR INTI MD 982152 DAN 982155 DARI SAMUDRA HINDIA". JURNAL GEOLOGI KELAUTAN 11, n. 2 (16 febbraio 2016): 55. http://dx.doi.org/10.32693/jgk.11.2.2013.231.

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Abstract (sommario):

Dari bor inti pada EKSPEDISI IMAGES, di Samudra Hindia, telah diteliti sebanyak 21 percontoh sedimen dari lokasi MD 982152, dan 29 buah dari lokasi MD 982155 untuk kepentingan biostratigrafi berdasarkan analisis foraminifera plankton dalam interval 1,5 meter. Pada kedua penampang bor inti tersebut hanya dijumpai satu zona foraminifera plankton Kuarter, yaitu Zona Globorotalia truncatulinoides. Untuk MD 982152, zona ini bisa dibagi ke dalam dua subzona, yakni Subzona-subzona Globorotalia crassaformis hessi dan Globigerinella calida, sedangkan untuk MD 982155, zona tersebut bisa dibagi lagi ke dalam tiga subzona, yakni Subzona-subzona Globorotalia crassaformis hessi Globigerinella calida, dan Beella digitata. Kejadian yang signifikan di kedua penampang itu adalah Datum Pemunculan Pertama dari Globigerinella calida dan Pemunculan Akhir dari Globorotalia crassaformis hessi. Pada MD 982155, dijumpai Pemunculan Pertama dari Beella digitata. Kata kunci: foraminifera plankton, Kuarter, biostratigrafi, Samudra Hindia. From IMAGES Expedition in Indian Ocean, 21 samples from MD 982152, and 29 samples from MD 982155 had been studied for the purpose of biostratigraphy based on planktonic foraminifera within 1,5 meter interval. In both sections, only one Quaternary zone is found, namely Globorotalia truncatulinoides Zone. For MD 982152, that zone can be subdivided into two interval subzones e.g. Globorotalia crassaformis hessi and Globigerinella calida calida. However, in MD 982155 Globorotalia truncatulinoides Zone can be subdivided into three subzones namely, Globorotalia crassaformis hessi, Globigerinella calida calida, and Beella digitata Subzones. The planktonic foraminifera event revealed in both sections are the First Appearance Datum (FAD) of Globigerinella calida calida and the Last Appearance (LAD) of Globorotalia crassaformis hessi. In MD 982155 the FAD of Beella digitata is found. Keywords: planktonic foraminifera, Quaternary, biostratigraphy, Indian Ocean.

3

Rizky, Aga, Ignatius Didi Setyawan e Sugeng Widada. "Analisis Fasies dan Lingkungan Pengendapan pada Formasi Pulau Balang Cekungan Kutai". Jurnal Ilmiah Geologi PANGEA 9, n. 1sp (3 aprile 2023): 20. http://dx.doi.org/10.31315/jigp.v9i1sp.9405.

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Abstrak - Formasi Pulau Balang merupakan salah satu formasi penghasil hidrokarbon yang terdapat pada Cekungan Kutai. Penelitian ini dilakukan pada beberapa sumur pemboran yang mempunyai data Formasi Pulau Balang. Data yang digunakan dalam penelitian ini adalah data cutting dan data biostratigrafi pada Sumur X. Analisis yang dilakukan untuk menetukan lingkungan pengendapan pada penelitian ini adalah dengan melakukan interpretasi fasies menggunakan data biostratigrafi dan sifat fisik batuan menggunakan data cutting. Sampel yang digunakan pada Sumur X terdapat pada kedalaman 420 m - 2700 m, yang terdiri dari 251 sampel. Berdasarkan hasil interpretasi, didapatkan litologi berupa packstone pada kedalaman 420 m - 520 m dengan komposisi berupa fragmen koral dan fragmen bryozoan, dan beberapa foraminifera besar yang merupakan marga Operculina serta mempunyai pola kurva log gamma ray berupa funnel shape diinterpretasikan masuk dalam fasies distributary mouth bar dengan lingkungan pengendapan adalah delta front. Data biostratigrafi yang ditemukan pada kedalaman 520 m – 950 m yang mempunyai litologi berupa batupasir halus adalah pelecypod, gastropods dan bentik kecil foraminifera seperti cellanthus sp., amonia sp., dan pseudorotalia catilliformis, serta pola log berupa serrated dan bell shape diinterpretasikan termasuk dalam fasies distributary mouth bar dengan lingkungan pengendapan delta front. Interval kedalaman 960 m – 1635 m sedikit ditemukan Nannofossil pada litologi batupasir sedang brupa Cyclicargolithus abisectus dan C. Floridanus, Helicosphaera perchnielseniae, Discoaster exilis, Coronocyclus nitescens, C. Cf. Nitescens, Rhabdosphaera poculi dengan pola serrated, bell shape dan funnel shape diintepretasikan termasuk dalam fasies distributary channel dengan lingkunan pengendapan lower delta plain. Interval kedalaman 2071 m – 2210 m pada litologi batulanau ditemukan fosil foraminifera besar seperti Miogypsina sp., dan Lepidocyclina sp. dengan pola serrated, diinterpretasikan termasuk dalam fasies crevasse play yang terendapkan pada lingkungan upper delta plain. Interval kedalaman 2500 m – 2700 m ditemukan Nannoplankton yang terdiri dari Cyclicargelithus abisectus, C. Floridanus, Helicosphaera carteri, H. Esuphratis, Sphenolithus abies, Sphenolithus belemnos, dan Sphenolithus heteromorphus dengan pola funnel shape, diinterpretasikan masuk dalam fasies interdelta bay yang terendapkan pada lingkungan lower delta plain.Kata kunci: Formasi Pulau Balang, Cekungan Kutai, distributary mouth bar, distributary channel, crevasse play, interdelta bay, delta front, lower delta plain, upper delta plain.Abstract - The Pulau Balang Formation is one of the hydrocarbon-producing formations found in the Kutai Basin. This study was conducted on several drilling wells with data on the Pulau Balang Formation. The data used in this study are cutting data and biostratigraphy data from Well X. The analysis conducted to determine the depositional environment in this study is by interpreting the facies using biostratigraphy data and the physical properties of rocks using cutting data. The samples used in Well X are located at depths of 420 m - 2700 m, consisting of 251 samples. Based on the interpretation results, the lithology in the depth of 420 m - 520 m is packstone with a composition of coral fragments and bryozoan fragments, and some large foraminifera of the Operculina genus with a log gamma ray curve pattern of funnel shape interpreted as belonging to the distributary mouth bar facies with the depositional environment being a delta front. The biostratigraphy data found at a depth of 520 m - 950 m, which has a lithology of fine sandstone, is pelecypod, gastropods, and small benthic foraminifera such as Cellanthus sp., Ammonia sp., and Pseudorotalia catilliformis, as well as log patterns of serrated and bell shape interpreted as belonging to the distributary mouth bar facies with the depositional environment being a delta front. The depth interval of 960 m - 1635 m is slightly found Nannofossil in the lithology of medium sandstone in the form of Cyclicargolithus abisectus and C. Floridanus, Helicosphaera perchnielseniae, Discoaster exilis, Coronocyclus nitescens, C. Cf. Nitescens, and Rhabdosphaera poculi with serrated, bell shape, and funnel shape patterns are interpreted as belonging to the distributary channel facies with the depositional environment being a lower delta plain. The depth interval of 2071 m - 2210 m in the limestone lithology found large foraminifera fossils such as Miogypsina sp., and Lepidocyclina sp. with a serrated pattern, interpreted as belonging to the crevasse play facies deposited in the upper delta plain environment. The depth interval of 2500 m - 2700 m found Nannoplankton consisting of Cyclicargelithus abisectus, C. Floridanus, Helicosphaera carteri, H. Esuphratis, Sphenolithus abies, Sphenolithus belemnos, and Sphenolithus heteromorphus with a funnel shape pattern, interpreted as belonging to the interdelta bay facies deposited in the lower delta plain environment.Keywords: Pulau Balang Formation, Kutai Basin, distributary mouth bar, distributary channel, crevasse play, interdelta bay, delta front, lower delta plain, upper delta plain.

4

Edwards, Lucy E. "Quantitative Biostratigraphy". Short Courses in Paleontology 4 (1991): 39–58. http://dx.doi.org/10.1017/s2475263000002117.

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I find myself in the position of discussing a rather unfortunate misnomer. In the first place, topics that traditionally have been called “quantitative biostratigraphy” seldom deal with quantities of anything. In the second place, much of “quantitative biostratigraphy” deals more with chronostratigraphy and geochronology than with biostratigraphy. The operational concept is time, not fossil content, although, of course, the fossil content is the starting point. Nonetheless, the phrase “quantitative biostratigraphy” is quite firmly entrenched in the working vocabulary and I will use it here. I will focus on three very different techniques that all involve stratigraphic correlation based on the ranges of fossils.

5

Mann, Keith Olin. "Teaching Biostratigraphy". Journal of Geoscience Education 48, n. 2 (marzo 2000): 184–98. http://dx.doi.org/10.5408/1089-9995-48.2.184.

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6

Martinotti, Guido Menahem, e Shoshana Boehm. "Computerized biostratigraphy". Newsletters on Stratigraphy 20, n. 1 (20 dicembre 1988): 7–19. http://dx.doi.org/10.1127/nos/20/1988/7.

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7

Hadi, Mehdi, Lorenzo Consorti, Mohammad Vahidinia, Mohammad Parandavar e Marziyeh Zoraghi. "Ypresian Alveolina and calcareous nannofossils from the south Sabzevar area (Central Iran): biostratigraphic, taxonomic and paleobiogeographic implications". Micropaleontology 67, n. 1 (2021): 31–52. http://dx.doi.org/10.47894/mpal.67.1.04.

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The Eocene carbonates of the south Sabzevar region in central Iran hold a rich Alveolina assemblage.Nine species including A. globula, Alveolina sp. 1, Alveolina aff. globula, A. regularis, A. globosa, A. pasticillata, A. laxa, A. pisiformis and A. cf. decipiens are identified through detailed analysis in thin section. The biostratigraphy obtained points to the early Ypresian Shallow Benthic Zones SBZ6 and partly SBZ7, indicating the occurrence of a lower Eocene carbonate system. The Alveolina biostratigraphy is correlated to the calcareous nannofossil biostratigraphy, and is assignable to the middle part of the NP10 Zone and especially with the CNE2 biozones. The evolutionary trends of A. globula and its dispersal through thewestern and central Neo-Tethys Ocean during theYpresian is here considered in relation with the occurrence of Alveolina sp. 1.

8

Grahn, Y., e H. Nøhr-Hansen. "Chitinozoans from Ordovician and Silurian shelf and slope sequences in North Greenland". Rapport Grønlands Geologiske Undersøgelse 144 (31 dicembre 1989): 35–41. http://dx.doi.org/10.34194/rapggu.v144.8060.

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This first study on chitinozoans from Greenland has revealed representatives of twenty-two chitinozoan species recovered from Ordovician and Silurian beds in North Greenland. The Ordovician faunas are sirnilar to those described from North Arnerica, while the Silurian faunas are more sirnilar to those of Baltoscandia. Four distinct assemblages can be separated between Maysvillian - early Garnachian and Ludlow. The chitinozoan biostratigraphy is in agreement with that of the graptolites but differs from the conodont biostratigraphy.

9

Simmons, Mike. "Biostratigraphy: Surviving Extinction". PALAIOS 13, n. 3 (giugno 1998): 215. http://dx.doi.org/10.2307/3515446.

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10

Aitchison, Jonathan C., Noritoshi Suzuki, Martial Caridroit, Taniel Danelian e Paula Noble. "Paleozoic radiolarian biostratigraphy". Geodiversitas 39, n. 3 (settembre 2017): 503–31. http://dx.doi.org/10.5252/g2017n3a5.

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11

Zhang, Yi-Chun, e Yue Wang. "Permian fusuline biostratigraphy". Geological Society, London, Special Publications 450, n. 1 (8 giugno 2017): 253–88. http://dx.doi.org/10.1144/sp450.14.

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12

Zhang, Lei, Qinglai Feng e Weihong He. "Permian radiolarian biostratigraphy". Geological Society, London, Special Publications 450, n. 1 (30 ottobre 2017): 143–63. http://dx.doi.org/10.1144/sp450.16.

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13

Leonova, Tatiana B. "Permian ammonoid biostratigraphy". Geological Society, London, Special Publications 450, n. 1 (8 dicembre 2016): 185–203. http://dx.doi.org/10.1144/sp450.7.

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Henderson, Charles M. "Permian conodont biostratigraphy". Geological Society, London, Special Publications 450, n. 1 (14 dicembre 2016): 119–42. http://dx.doi.org/10.1144/sp450.9.

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15

Cope, John C. W. "High resolution biostratigraphy". Geological Society, London, Special Publications 70, n. 1 (1993): 257–65. http://dx.doi.org/10.1144/gsl.sp.1993.070.01.18.

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16

POULSEN, N. "Excellence in biostratigraphy". Trends in Ecology & Evolution 21, n. 8 (agosto 2006): 427. http://dx.doi.org/10.1016/j.tree.2006.02.009.

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17

Athersuch, John. "Ostracoda and biostratigraphy". Marine and Petroleum Geology 13, n. 7 (novembre 1996): 851. http://dx.doi.org/10.1016/0264-8172(96)83690-7.

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18

Rees, A. J., A. T. Thomas, M. Lewis, H. E. Hughes e P. Turner. "Overview and biostratigraphy". Geological Society, London, Memoirs 42, n. 1 (2014): 1–31. http://dx.doi.org/10.1144/m42.1.

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19

O'Dogherty, Luis, Elizabeth S. Carter, Špela Goričan e Paulian Dumitrica. "Triassic radiolarian biostratigraphy". Geological Society, London, Special Publications 334, n. 1 (2010): 163–200. http://dx.doi.org/10.1144/sp334.8.

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20

Pickford, Martin. "Belometchetskaya and Biostratigraphy". Geobios 37, n. 1 (gennaio 2004): 119–20. http://dx.doi.org/10.1016/j.geobios.2003.11.002.

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21

Vanderlaan, Tegan A., e Malte C. Ebach. "Systematic biostratigraphy: A solution to problematic classification systems in biostratigraphy". Palaeoworld 23, n. 2 (giugno 2014): 105–11. http://dx.doi.org/10.1016/j.palwor.2014.01.001.

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22

Vandenbroucke, Thijs R. A., Philippe Recourt, Jaak Nolvak e Arne T. Nielisen. "Chitinozoan biostratigraphy of the Upper Ordovician D. clingani and P. linearis graptolite biozones on the Island of Bornholm, Denmark". Stratigraphy 10, n. 4 (2013): 281–301. http://dx.doi.org/10.29041/strat.10.4.07.

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The last decade saw a revival of the debate on the exact stratigraphical position of the Upper Ordovician P. linearis graptolite biozone. Chitinozoan biostratigraphy can be useful to help address this question. Here, we provide a high-resolution chitinozoan biostratigraphy through the Dicellograptus Shale Formation at Vasagård on the Island of Bornholm (Denmark), which recently also was subject to a thorough revision of its graptolite fauna, representing the Dicellograptus folicaceus, Dicranograptus clingani and Pleurograptus linearis biozones. We have identified close to 9000 individual chitinozoan vesicles from 26 samples through the upper c. 9m of the Dicellograptus Shale Formation. The Spinachitina cervicornis, Fungochitina spinifera and Tanuchitina bergstroemi chitinozoan biozones are identified, and their boundaries carefully calibrated against the revised graptolite biostratigraphy. A correlation with the chitinozoan biozonation in the British Cautley district, which has a predominantly Baltoscandian, mid-latitude signature and is well-correlated with the graptolite and shelly fauna biozones described from the historical type region, is established.

23

Palliani, Raffaella Bucefalo, e Emanuela Mattioli. "High resolution integrated microbiostratigraphy of the Lower Jurassic (late Pliensbachian–early Toarcian) of central Italy". Journal of Micropalaeontology 17, n. 2 (1 dicembre 1998): 153–72. http://dx.doi.org/10.1144/jm.17.2.153.

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Abstract. The integrated use of calcareous nannofossil and dinoflagellate cyst events in a study of the late Pliensbachian–early Toarcian interval in central Italy has yielded a high resolution biostratigraphy. The use of both the first and last occurrences of selected taxa belonging to the two phytoplankton groups allows the dating of the sediments with a very refined detail, even when lithologies are unfavourable to the preservation of one fossil group. The evolutionary history of calcareous nannofossils and dinoflagellate cysts during the early Jurassic and its links with global events are responsible for the high potential of this integrated biostratigraphy.

24

Jasin, Basir. "Radiolarian biostratigraphy of Malaysi". Bulletin of the Geological Society of Malaysia 65, n. 1 (1 giugno 2018): 45–58. http://dx.doi.org/10.7186/bgsm65201805.

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Bergström, Stig M., e Annalisa Ferretti. "Conodonts in Ordovician biostratigraphy". Lethaia 50, n. 3 (3 ottobre 2016): 424–39. http://dx.doi.org/10.1111/let.12191.

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26

Lelono, Eko Budi. "Analisis Palinologi Kuantitatif Endapan Delta Mahakam Umur Miosen Kalimantan Timur". Lembaran publikasi minyak dan gas bumi 38, n. 2 (9 marzo 2022): 16–26. http://dx.doi.org/10.29017/lpmgb.38.2.750.

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Analisis biostratigrafi resolusi tinggi saat ini sudah menjadi tuntutan banyak perusahaan minyak untuk memahami kondisi stratigrafi secara akurat. Dalam tulisan ini analisis biostratigrafi resolusi tinggi dikerjakan dengan cara menghitung semua individu palinomorf yang muncul pada preparat mewakili percontoh batuan tertentu (metode kuantitatif). Sedangkan metode konvensional dikerjakan dengan mengamati kemunculan dan kepunahan palinomorf indeks untuk rekonstruksi zone palinologi (metode kualitatif).

27

Cantalejo, Blanca, Kevin T. Pickering, Conall McNiocaill, Paul Bown, Kyrre Johansen e Melissa Grant. "A revised age-model for the Eocene deep-marine siliciclastic systems, Aínsa Basin, Spanish Pyrenees". Journal of the Geological Society 178, n. 1 (7 agosto 2020): jgs2019–131. http://dx.doi.org/10.1144/jgs2019-131.

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Using new palaeomagnetic and biostratigraphic data, we revise the age-model for the middle Eocene, deep-marine Aínsa Basin (Spanish Pyrenees), a tectonically active basin formed at a convergent-plate margin. This new age model provides a framework for evaluating the depositional history and sediment accumulation rates. New integrated magneto- and biostratigraphy data identify two normal and two reverse chrons of the geomagnetic polarity timescale (C21r, C21n, C20r, C20n) and place these Upper Hecho Group deposits in the middle Eocene (Lutetian). Nannofossil analysis identifies a biostratigraphic range from Subzone NP14b in the Gerbe System to Subzone NP15b at the top of the Aínsa System using key, age-diagnostic marker species such as Blackites inflatus, Blackites piriformis and Coccolithus gigas. We also present new nannofossil biostratigraphy from the Lower Hecho Group. This new Aínsa Basin chronostratigraphy enables inter-basinal correlations between the proximal fluvio-deltaic Tremp-Graus Basin and the more distal Jaca Basin, thereby providing a better understanding of the basin evolution.Supplementary materials: Field photographs of the sampled sections, magnetostratigraphic results, biostratigraphy results, alternative age model scenario and discussion on previous age model are available at https://doi.org/10.6084/m9.figshare.c.5083076

28

Fadiya, Lawrence S. "Two new short-ranged Calcidiscus species from the offshore marine Neogene Niger Delta sequences". Micropaleontology 58, n. 6 (2012): 539–42. http://dx.doi.org/10.47894/mpal.58.6.05.

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Two new species, Calcidiscus salamis sp. nov. and C. odebodea sp. nov. are described from themarine offshore Niger Delta Neogene sequence. Calcidiscus salamis is structurally similar to C. fuscus but has a closed central area. Calcidiscus odebodea differs from C. leptoporous in having strongly curved sutures. The new forms consistently occur throughout the LateMiocene to Early Pliocene offshore eastern and western Niger Delta sequences. They have the same stratigraphic range: NN11-NN13 zones (Messinian to Zanclean). The combination of their widespread geographic occurrence and short stratigraphic rangemakes them excellent index species for the high-resolution biostratigraphy of theNiger Delta marine offshore sequences where most Calcidiscus forms have much longer ranges. KEYWORDS: Calcareous nannofossil, Biostratigraphy, Calcidiscus, Niger Delta.

29

Hotsanyuk, Halyna, Antonina Ivanina, Yaryna Tuzyak e Ihor Shaynoha. ""Paleontological collection" - 60 years!" Paleontological Collection 53 (2021): 3–9. http://dx.doi.org/10.30970/pal.53.01.

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The “Paleontological Collection” celebrates its 60th anniversary. It was founded in 1961 by the Lviv Geological Society of the Ivan Franko National University of Lviv on the initiative of Academician O. Vyalov. This collection is the only professional publication in Ukraine in the field of paleontology and biostratigraphy, which publishes works on current issues of paleontology, taphonomy, paleoecology, biostratigraphy of the Upper Precambrian, Paleozoic, Mesozoic, Cenozoic of Ukraine; scientific chronicle; results of paleontological research of different groups of ancient organisms; works on topical issues of regional stratigraphy. As of 2021, 52 issues of the “Paleontological Collection” and 58 of its volumes have been published, containing more than 1,150 articles on various paleontological and stratigraphic topics.

30

Neal, J. E., J. A. Stein e J. H. Gamber. "Graphic correlation and sequence stratigraphy in the Palaeogene of NW Europe". Journal of Micropalaeontology 13, n. 1 (1 settembre 1994): 55–80. http://dx.doi.org/10.1144/jm.13.1.55.

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Abstract. A sequence stratigraphic analysis of well log, seismic, and biostratigraphic data has documented a pattern of cyclic sedimentation for the Palaeogene of the Central North Sea. Previously published research has also documented cyclic sedimentation related to sea level changes. Integrating Central North Sea subsurface sections with Palaeogene outcrop from NW Europe, using sequence stratigraphic first principles and the graphic correlation method, has produced a chronostratigraphic framework for the Palaeogene of NW Europe.Northwestern Europe basins (London–Hampshire, Paris, and Belgian) have shallow marine to nonmarine environments, revealing basinward and landward fades shifts indicating sea level changes. The problem correlating NW Europe with North Sea deposits has been addressed by correlating a biostratigraphy to the deep water deposits outcropping in Denmark. Once a biostratigraphy joining the subsurface and outcrops is built, key bounding surfaces are correlated between basins. We find that: (1) sedimentation in the deep basin occurs as depositional pulses, separated by time-correlative biostratigraphic data terraces (hiatal intervals), which correspond to persistent seismic reflectors; (2) not all sequence boundaries are resolvable by graphic correlation, but the method brackets packages defined by seismic, log interpretation and biostratigraphy; and (3) correlation with outcrops reveals the true significance of the hiatal intervals.

31

Hadi, Mehdi, Ali Bahrami, Gyorgy Less, Lorenzo Consorti e Mohammad Parandavar. "Biostratigraphy of the Eocene shallow-water succession of the south Sabzevar area (Central Iran) based on larger benthic foraminifera and calcareous nannofossils". Micropaleontology 70, n. 2 (1 marzo 2024): 171–96. http://dx.doi.org/10.47894/mpal.70.2.05.

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A rich larger foraminifera assemblage from the Eocene carbonates of the south Sabzevar region (Now-Deh section) in central Iran indicates a late Ypresian to early Lutetian age. Nine species of Alveolina d’Orbigny are studied for systematics and biostratigraphy. The assemblage includes A. minuta, A. decastroi, A. cremae, A. cremae elongata, A. decipiens ayrancensis, A. celali, A. rugosa, A. cuspidata, A. frumentiformis. We have also found nummulitids (genus Nummulites and Assilina) and orthophragmines identified as N. campesinus, N. praediscorbinus, A. placentula, A. praespira, A. reicheli, A. ex. intrec. laxispira-maior and Discocyclina archiaci bartholomei. The recovery of Alveolina cremae elongata, A. decipiens ayrancensis, A. celali, A. rugosa, A. cuspidata and Assilina praespira has permitted for the first time to extend their geographical distribution outside of the classical peri-Mediterranean area to the central Tethys regions. The obtained biostratigraphy points to the Shallow Benthic Zones SBZ11 to SBZ13, indicating the occurrence of a Lower–Middle Eocene carbonate system. Part of the age model is supported by the calcareous nannofossil biostratigraphy that belong to the NP14b and CNE8 biozones, recorded from the central portion of the studied section. Issues regarding the application of the SBZ into the Middle East domains are discussed in terms of relative stratigraphic position and biogeographic dispersal of some significant Alveolina species.

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Aubry, Marie-Perre, Medard Thiry, Christian Dupuis e William A. Berggren. "The Sparnacian deposits of the Paris Basin: A lithostratigraphic classification". Stratigraphy 2, n. 1 (2005): 65–100. http://dx.doi.org/10.29041/strat.02.1.04.

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As the result of a study integrating lithostratigraphy and biostratigraphy of the Upper Paleocene (Thanetian) and Lower Eocene (Sparnacian-Ypresian) of the Paris Basin, a new lithostratigraphic unit, the Mont Bernon Group, can be formally recognized. The group includes four formational units: the Mortemer (Mortemer Limestone), the Vaugirard (Plastic Clay), the Soissonnais (Lignitic Clay of Soissons) and Epernay (Lignitic Clay of Epernay) formations and associated members. An integration of charophyte, dinoflagellate cyst and, to a lesser extent, calcareous nannoplankton biostratigraphy allows us to place the succession in an approximate, integrated biostratigraphic framework. Our introduction of a formal lithostratigraphic framework for the Upper Paleocene-Lower Eocene succession in the Paris Basin contributes to emphasize the distinctiveness of the Sparnacian deposits as an independent stratigraphic unit.

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Gard, Gunilla, Jason Crux, Bernard Lee e Catherine Belgarde. "Remote monitoring of well site biostratigraphy". APPEA Journal 55, n. 2 (2015): 469. http://dx.doi.org/10.1071/aj14104.

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Real-time well site biostratigraphy monitors the stratigraphic progress of drilling wells and can show if the well is conforming or deviating from predicted stratigraphy; it can also show whether total depth criteria have been met. New technology implemented by BHP Billiton Petroleum on wells in the Gulf of Mexico make it possible to undertake well site biostratigraphy remotely. An automated microscope has been developed that can scan and photograph nannofossil slides at a quality almost indistinguishable from conventional microscopy. A technician present at the well makes a slide from ditch cuttings and places it on the microscope, where software scans the slide at several focus levels, compresses the files and transfers the images to the office. A biostratigrapher in the office looks at the images and makes taxonomic identifications. When implemented on the first well, the technology provided immediate results by being the first data acquisition process to recognise that a section was faulted out. Remote well site biostratigraphy also creates a verifiable record, making it possible to quality-control biostratigraphic interpretations; it also frees up space on the rig and improves health and safety for biostratigraphers. Delays in file transfers from the rig to the office are being addressed by reducing the size of the image files by discriminating the fossils from the background.

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Sennikov, Nikolay, Alexandr Kanygin, Alexandr Timokhin, Nadezhda Izokh, Olga Obut e Yuri Philippov. "NEW STRATIGRAPHIC UNITS OF THE UPPER ORDOVIKIN THE FUNDAMENTAL OF THE WESTERN SIBERIAN GEOSINELCLYSIS". Interexpo GEO-Siberia 2, n. 1 (2019): 177–82. http://dx.doi.org/10.33764/2618-981x-2019-2-1-177-182.

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Recent data on the Ordovician biostratigraphy of the West-Siberian Geosyncline are discussed. The new Regional unit - Pavlov Horizon and two new local sequences – Zapadno-Novogodnyaya Unit and Lekosskaya Unit were defined.

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Bąk, Krzysztof, e Marta Bąk. "Foraminiferal and radiolarian biostratigraphy of the youngest (Late Albian through Late Cenomanian) sediments of the Tatra massif, Central Western Carpathians". Acta Geologica Polonica 63, n. 2 (1 giugno 2013): 223–38. http://dx.doi.org/10.2478/agp-2013-0009.

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Abstract Bąk, K. and Bąk M. 2013. Foraminiferal and radiolarian biostratigraphy of the youngest (Late Albian through Late Cenomanian) sediments of the Tatra massif, Central Western Carpathians. Acta Geologica Polonica, 63 (2), 223-237. Warszawa. The foraminiferal and radiolarian biostratigraphy of selected sections of the Zabijak Formation, the youngest sediments of the Tatra massif (Central Western Carpathians), have been studied. Benthic foraminifers, mainly agglutinated species, occur abundantly and continuously throughout the studied succession, while planktic foraminifers are generally sparse. Five planktic and two benthic foraminiferal zones have been recognized. The marly part of the Zabijak Formation comprises the Pseudothalmanninella ticinensis (Upper Albian) through the Rotalipora cushmani (Upper Cenomanian) planktic foraminiferal zones, and the Haplophragmoides nonioninoides and Bulbobaculites problematicus benthic foraminiferal zones. The radiolarians were recognized exclusively in the Lower Cenomanian part of the formation.

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Jones, Douglas S., Paul A. Mueller, Teresa Acosta e Robert D. Shuster. "Strontium isotope stratigraphy and age estimates for the Leisey Shell Pit faunas, Hillsborough County, Florida". Bulletin of the Florida Museum of Natural History 37, n. 2 (14 marzo 1995): 93–105. http://dx.doi.org/10.58782/flmnh.ksgz6978.

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The vertebrate fauna of the Leisey Shell Pit near Tampa Bay, Florida, represents one of the more significant Irvingtonian mammalian faunas of North America. The fossil vertebrates occur in thin bone beds bounded above and below by massive shell beds containing a rich invertebrate (chiefly molluscan) fauna. Debate has arisen concerning the precise age of the faunas at Leisey. Although generally agreed to be Pleistocene, estimates based upon vertebrate biostratigraphy suggest a somewhat older age than do estimates based upon molluscan biostratigraphy. To help resolve this controversy, 87Sr/86Sr ratios were determined on molluscan shells throughout the section. These ratios were then correlated to the global sea water 87Sr/86Sr curve for age detemination. The Sr isotopes support an early Pleistocene age for the vertebrate fauna and suggest a complex history for the shell accumulations.

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Martin, Ron. "Beyond Biostratigraphy: Micropaleontology in Transition?" PALAIOS 6, n. 5 (ottobre 1991): 437. http://dx.doi.org/10.2307/3514983.

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Maheshwari, H. K., e Rajni Tewari. "Megaspore biostratigraphy of the Gondwana". Journal of Palaeosciences 36 (31 dicembre 1987): 102–5. http://dx.doi.org/10.54991/jop.1987.1565.

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Dispersed megaspores are known from almost all the Gondwana horizons though they are comparatively rare. Approximately, 36 genera and 110 species are known from the Gondwana sediments. The number of genera and species is almost equally divided between Permian and Mesozoic Gondwana. Most of the formations except Talchir, Barren Measures and Upper Tiki have marker megaspore taxa at generic level. The above-mentioned three formations have marker taxa only at the species level. At the present stage of our knowledge megaspores are found useful only for broader zonation. As far as age determination is concerned, the megaspores, as compared to other palynofossils, indicate younger ages.

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Taylor, J. F. "Who needs (lower Paleozoic) biostratigraphy?" PALAIOS 24, n. 7 (1 luglio 2009): 413–15. http://dx.doi.org/10.2110/palo.2009.s04.

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Mens, K., I. Paalits, I. Puura e V. Viira. "UPPER CAMBRIAN BIOSTRATIGRAPHY OF ESTONIA". Proceedings of the Estonian Academy of Sciences. Geology 42, n. 4 (1993): 148. http://dx.doi.org/10.3176/geol.1993.4.02.

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Wang, Xiang-Dong, Sun-Rong Yang, Le Yao, Tetsuo Sugiyama e Ke-yi Hu. "Carboniferous biostratigraphy of rugose corals". Geological Society, London, Special Publications 512, n. 1 (6 ottobre 2021): 603–32. http://dx.doi.org/10.1144/sp512-2021-79.

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AbstractRugose corals are one of the major fossil groups in shallow-water environments. They played an important role in dividing and correlating Carboniferous strata during the last century, when regional biostratigraphic schemes were established, and may be useful for long-distance correlation. Carboniferous rugose corals document two evolutionary events. One is the Tournaisian recovery event, with abundant occurrences of typical Carboniferous rugose corals such as columellate taxa and a significant diversification of large, dissepimented corals. The other is the changeover of rugose coral composition at the mid-Carboniferous boundary, which is represented by the disappearance of many large dissepimented taxa with complex axial structures and the appearance of typical Pennsylvanian taxa characterized by compound rugose taxa. The biostratigraphic scales for rugose corals show a finer temporal resolution in the Mississippian than in the Pennsylvanian, which was probably caused by the Late Paleozoic Ice Age that resulted in glacial–eustatic changes and a lack of continuous Pennsylvanian carbonate strata. The Pennsylvanian rugose corals are totally missing in the Cimmerian Continent. High-resolution biostratigraphy of rugose corals has so far only been achieved in few regions for the Mississippian timescale. In most regions, more detailed taxonomic work and precise correlations between different fossil groups are needed.

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Georgescu, Marius Dan. "Upper Cretaceous planktic foraminiferal biostratigraphy". Studia Universitatis Babes-Bolyai, Geologia 61, n. 1/2 (settembre 2017): 5–20. http://dx.doi.org/10.5038/1937-8602.61.1.1297.

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Qianghe, Wu. "Carboniferous Biostratigraphy of Guizhou Province". Acta Geologica Sinica - English Edition 1, n. 2 (29 maggio 2009): 113–25. http://dx.doi.org/10.1111/j.1755-6724.1988.mp1002001.x.

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Radford, Sally S., e Li Qianyu. "Eocene-Miocene high latitude biostratigraphy". Geological Society, London, Special Publications 70, n. 1 (1993): 131–36. http://dx.doi.org/10.1144/gsl.sp.1993.070.01.09.

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Jones, G. LL, e I. D. Somerville. "Irish Dinantian biostratigraphy: practical applications". Geological Society, London, Special Publications 107, n. 1 (1996): 371–85. http://dx.doi.org/10.1144/gsl.sp.1996.107.01.27.

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Lucas, Spencer G. "Tetrapod Footprint Biostratigraphy and Biochronology". Ichnos 14, n. 1-2 (gennaio 2007): 5–38. http://dx.doi.org/10.1080/10420940601006792.

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47

Yanina, Tamara. "Biostratigraphy of the Caspian Pleistocene". Quaternary International 279-280 (novembre 2012): 546–47. http://dx.doi.org/10.1016/j.quaint.2012.08.1923.

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Harwood, David M., e Vladimir A. Nikolaev. "Cretaceous Diatoms: Morphology, Taxonomy, Biostratigraphy". Short Courses in Paleontology 8 (1995): 81–106. http://dx.doi.org/10.1017/s2475263000001434.

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Abstract (sommario):

The Cretaceous record of the diatoms presented here outlines our understanding of their early morphological development. Recent documentation of well preserved Lower Cretaceous (Aptian/Albian) diatom assemblages provides a window into the early history of the diatoms and serves as a base for comparing their subsequent morphological changes. A brief review of diatom biology and morphology is provided to introduce this paper and that of Barron and Baldauf (this volume). Additional background information on the diatoms can be found in the works of Schrader and Schuette (1981), Tappan (1980), Bach and Burkhardt (1984), Barron (1985a, 1993), Fenner (1985), Ricard (1987), Bradbury (1988), Round et al. (1990), and Picket-Heaps et al. (1990).

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Gasse, F., e E. Fourtanier. "African diatom palaeoecology and biostratigraphy". Journal of African Earth Sciences (and the Middle East) 12, n. 1-2 (gennaio 1991): 325–34. http://dx.doi.org/10.1016/0899-5362(91)90081-9.

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Funnell, Brian M. "Cenozoic Biostratigraphy and Global Change". Journal of Micropalaeontology 9, n. 2 (1 marzo 1991): 117. http://dx.doi.org/10.1144/jm.9.2.117.

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Abstract. INTRODUCTIONIn May 1989 a British Micropalaeontological Society Symposium Meeting was held at the University of East Anglia under the title “Cenozoic Biostratigraphy and Global Change”. Fourteen lectures were given on this theme, many of them originating from investigations of DSDP/IPOD and ODP (Ocean Drilling Program) samples. All addressed the potential of micropalaeontological observations for interpreting the history of global and regional oceanographic and climatic change. Many results of this type of investigation are currently appearing in science journals such as “Paleoceanography” and “Palaeogeography, Palaeoclimatology, Palaeoecology” as well as in the “Proceedings of the Ocean Drilling Program”. British micropalaeontologists are taking an active part in this research, but relatively few of the resultant papers have so far appeared in the Journal of Micropalaeontology.Many of the lectures given at the May 1989 Symposium represented work already recently published, or due to be subsequently published in the Proceedings of the Ocean Drilling Program. Four papers, representing ongoing research not then due to be published, have been brought together here as a small thematic set, illustrating a variety of approaches to “Cenozoic Biostratigraphy and Global Change”. They range across Ostracoda, Coccolithophorida, Planktonic and Benthic Foraminifera, through the entire Cenozoic, including the latest Quaternary, and they include results from both the North Atlantic and Pacific oceans.TITLES“Global Change and the Biostratigraphy of North Atlantic Cenozoic deep water Ostracoda” - Robin C. Whatley and Graham P. Coles.“Palaeoclimatic control of Upper Pliocene Discoaster assemblages in the North Atlantic” - Alex. Chepstow-Lusty, Jan Backman. . .