Correlation of eustatic and biotic events in the Ordovician paleobasins of the Siberian and Russian platforms

Dronov, A. V.; Каныгин, А. В.; Тимохин, А. В.; Tolmacheva, T. Yu.; Gonta, T. V.

doi:10.1134/s0031030109110124

Cited by 24 publications

(10 citation statements)

References 14 publications

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“…The hiatus spans the Eoplacognathus suecicus and Pygodus serra zones and the lower subzone of the P. anserinus Zone. It is worth noting that this hiatus is recorded in the Siberian platform, in the Baltoscandic region and in China as well (Dronov et al, 2009;Schmitz et al, 2010).…”

Section: Pygodus Anserinus Zonementioning

confidence: 99%

Conodont biostratigraphy and global correlation of the middle Darriwilian-lower Sandbian (Ordovician) Las Aguaditas Formation, Precordillera of San Juan, Argentina

Feltes

Albanesi

Bergström

2016

andgeo

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ABSTRACT. Middle Darriwilian to lower Sandbian conodonts were recorded from the Las Aguaditas Formation at its type section in the Argentine Precordillera. A total of 9,974 conodont specimens were recovered from 46 carbonate samples, which represent 68 species of 38 genera. A biostratigraphic study verified a middle Darriwilian age for the interval spanning the contact between the San Juan and the Las Aguaditas formations. The following zones are determined in the study section: the Lenodus variabilis Zone, with the Periodon gladysae and Paroistodus horridus subzones following the Precordilleran scheme; the L. variabilis, Yangtzeplacognathus crassus, and the Eoplacognathus pseudoplanus zones with the Microzarkodina hagetiana and M. ozarkodella subzones, and the Pygodus anserinus Zone, according to the Scandinavian scheme; the Periodon macrodentatus Zone, with the Histiodella sinuosa, H. holodentata and H. cf. holodentata subzones, and the P. zgierzensis Zone with the H. kristinae Subzone that correlates the North American scheme. A stratigraphic gap was recognized between the lower and middle members of the Las Aguaditas Formation. It comprises the Eoplacognathus suecicus and Pygodus serra zones, and the lower subzone of the Pygodus anserinus Zone. The variation of conodont diversity through the study section conforms to shallowing and deepening patterns, which accompanies the changes of the provenance lithology. Three conodont assemblages were quantitatively recognized: a) Diverse conodont association, b) Low diversity conodont association and c) Recovery phase association. We propose to use the North American biozonal scheme of conodonts for the Central Precordillera because of the affinity of documented index taxa, which provides a more accurate intercontinental correlation for the global Middle Ordovician Series. Keywords: Conodont, Darriwilian-Sandbian, Biostratigraphy, Paleoecology, Precordillera, Argentina. RESUMEN. Bioestratigrafía de conodontes y correlación global del Darriwiliano medio-Sandbiano inferior (Ordovícico) Formación Las Aguaditas, precordillera de San Juan, Argentina. En la Formación Las Aguaditas, en su sección tipo en la precordillera Argentina, se registraron conodontes del Darriwiliano medio al Sandbiano bajo. Se recuperaron un total de 9.974 especímenes de 46 muestras carbonáticas; estos representan 68 especies pertenecientes a 38 géneros. Se llevó a cabo un estudio bioestratigráfico para verificar la edad del intervalo que incluye el contacto entra las formaciones San Juan y Las Aguaditas. La presencia de taxones guía indican una edad darriwiliana media para este intervalo. Las siguientes biozonas fueron determinadas en el área de estudio: Zona de Lenodus variabilis, con las subzonas de Periodon gladysae y Paroistodus horridus, correspondientes al esquema establecido para la precordillera; las zonas de L. variabilis, Yangtzeplacognathus crassus y la de Eoplacognathus pseudoplanus con la subzonas de Microzarkodina hagetiana y M. ozarkodella, y la Zona de Pygodus anserinus, según el ...

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Section: Pygodus Anserinus Zonementioning

confidence: 99%

Conodont biostratigraphy and global correlation of the middle Darriwilian-lower Sandbian (Ordovician) Las Aguaditas Formation, Precordillera of San Juan, Argentina

Feltes

Albanesi

Bergström

2016

andgeo

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“…The sequence stratigraphic subdivision of the Ordovician succession of the Tungus Basin and correlation of sedimentary sequences with the Baltoscandian succession has been proposed by Dronov et al (2009) and Kanygin et al (2010b). Five of the sequence boundaries are recognized in the stratigraphic interval studied here (Fig.…”

Section: Discussionmentioning

confidence: 95%

“…The sections studied by us represent the Igarka-Noril'sk Zone (Kulyumbe area) and SouthTunguska Zone (Podkamennaya Tunguska area), both located on the western margin of the Tungus Basin (Kanygin et al, 2006(Kanygin et al, , 2010a. Recent sequence stratigraphic studies by Dronov et al (2009) and Kanygin et al (2010b) resulted in recognition of nine depositional sequences in the Ordovician succession of Siberian Craton.…”

Section: Geological Settingmentioning

confidence: 97%

“…The Angir and Zagornyi formations are characterized by argillaceous wackestones and packstones with thin layers of bioclastic limestones, whereas the Amarkan Formation consists of carbonate-rich siltstone and sandstone with occasional bioclastic limestone layers (Tesakov et al, 1982; Dronov et al, 2009 andKanygin et al, 2010b). 2006). The Ust' Stolbovaya Formation is represented mainly by calcareous siltstone or marl with thin interbeds of limestone and calcareous sandstone.…”

Section: Geological Settingmentioning

confidence: 98%

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Carbon isotope chemostratigraphy and conodonts of the Middle–Upper Ordovician succession in the Tungus Basin, Siberian Craton

et al. 2015

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“…Стратиграфический интервал, отвечающий муктэйскому горизонту, является важным репером для межрегиональных корреляций, так как в глобальном масштабе он охарактеризован тремя группами кор-реляционных признаков: 1) приуроченностью к этому интервалу «фаунистических экзотов» с кратко-временным существованием; 2) быстрым расцветом новых групп бентосной фауны и 3) хорошим совпа-дением равномасштабных и однонаправленных осадочных секвенций в географически далеко разобщенных эпиконтинентальных бассейнах, как это было показано на примере сопоставления пере-ломных биотических и геологических событий в ордовике Сибирской платформы и Балто-Скандии [Dronov et al, 2009;Kanygin et al, 2010;Maslova, 2013].…”

Section: корреляция местных стратиграфических подразделений среднеордunclassified

The Ordovician Mukteian Horizon of the Siberian Platform: Paleontological Substantiation, Distribution, and Correlation of Sections

2014

GiG

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Correlation of eustatic and biotic events in the Ordovician paleobasins of the Siberian and Russian platforms

Cited by 24 publications

References 14 publications

Conodont biostratigraphy and global correlation of the middle Darriwilian-lower Sandbian (Ordovician) Las Aguaditas Formation, Precordillera of San Juan, Argentina

Conodont biostratigraphy and global correlation of the middle Darriwilian-lower Sandbian (Ordovician) Las Aguaditas Formation, Precordillera of San Juan, Argentina

Carbon isotope chemostratigraphy and conodonts of the Middle–Upper Ordovician succession in the Tungus Basin, Siberian Craton

The Ordovician Mukteian Horizon of the Siberian Platform: Paleontological Substantiation, Distribution, and Correlation of Sections

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