Biostratigraphy, lithology and geochemistry of the lower and middle Cambrian rocks in the Kyulenke River basin: first results of borehole core study

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Biostratigraphy, lithology and geochemistry of the lower and middle Cambrian rocks in the Kyulenke River basin: first results of borehole core study. / Коровников, Игорь Валентинович; Вараксина, Ирина; Конторович, Алексей Эмильевич et al.

In: Russian Geology and Geophysics, Vol. 65, No. 1, 01.2024, p. 126-136.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{b07097762ae64d88b53af5072f9a3dc5,

title = "Biostratigraphy, lithology and geochemistry of the lower and middle Cambrian rocks in the Kyulenke River basin: first results of borehole core study",

abstract = "We have studied biostratigraphy, lithology and geochemistry of drill cores from the Kyulenke River basin. The study of fos-sil remains and rock compositions, the analysis of trilobite distributions and changes in the lithological and geochemical characteristics of the sediments made it possible to identify structural features of the marker horizons, to correlate borehole sections and outcrops, to compare individual Cambrian intervals and the regional zones of the Yudoma–Olenek facies region of the Siberian Platform. The study has shown rocks of the Kuonamka Fomation to be enriched in uranium (U) and revealed a direct relationship between the contents of U and organic carbon (Corg) in the analyzed rocks, typical for the lower and middle Cambrian black shale deposits sampled from the outcrops in the eastern parts of the Siberian Platform. For the first time, a relationship of rock radioactivity by gamma-ray logging with the contents of U and Corg in Cambrian rocks was established.",

keywords = "Kuonamka Formation, Siberian Platform, biostratigraphy, carbon, lower and middle Cambrian, radioactivity, source rocks, trilobites, uranium",

author = "Коровников, {Игорь Валентинович} and Ирина Вараксина and Конторович, {Алексей Эмильевич} and Парфенова, {Татьяна Михайловна}",

note = "The work was supported by the State Program of Fundamental Scientific Research, the Projects Nos. FWZZ-2022-0003, FWZZ-2022-0008, FWZZ-2022-0011. Публикация для корректировки.",

year = "2024",

month = jan,

doi = "10.2113/RGG20234630",

language = "English",

volume = "65",

pages = "126--136",

journal = "Russian Geology and Geophysics",

issn = "1068-7971",

publisher = "Elsevier Science B.V.",

number = "1",

}

RIS

TY - JOUR

T1 - Biostratigraphy, lithology and geochemistry of the lower and middle Cambrian rocks in the Kyulenke River basin: first results of borehole core study

AU - Коровников, Игорь Валентинович

AU - Вараксина, Ирина

AU - Конторович, Алексей Эмильевич

AU - Парфенова, Татьяна Михайловна

N1 - The work was supported by the State Program of Fundamental Scientific Research, the Projects Nos. FWZZ-2022-0003, FWZZ-2022-0008, FWZZ-2022-0011. Публикация для корректировки.

PY - 2024/1

Y1 - 2024/1

N2 - We have studied biostratigraphy, lithology and geochemistry of drill cores from the Kyulenke River basin. The study of fos-sil remains and rock compositions, the analysis of trilobite distributions and changes in the lithological and geochemical characteristics of the sediments made it possible to identify structural features of the marker horizons, to correlate borehole sections and outcrops, to compare individual Cambrian intervals and the regional zones of the Yudoma–Olenek facies region of the Siberian Platform. The study has shown rocks of the Kuonamka Fomation to be enriched in uranium (U) and revealed a direct relationship between the contents of U and organic carbon (Corg) in the analyzed rocks, typical for the lower and middle Cambrian black shale deposits sampled from the outcrops in the eastern parts of the Siberian Platform. For the first time, a relationship of rock radioactivity by gamma-ray logging with the contents of U and Corg in Cambrian rocks was established.

AB - We have studied biostratigraphy, lithology and geochemistry of drill cores from the Kyulenke River basin. The study of fos-sil remains and rock compositions, the analysis of trilobite distributions and changes in the lithological and geochemical characteristics of the sediments made it possible to identify structural features of the marker horizons, to correlate borehole sections and outcrops, to compare individual Cambrian intervals and the regional zones of the Yudoma–Olenek facies region of the Siberian Platform. The study has shown rocks of the Kuonamka Fomation to be enriched in uranium (U) and revealed a direct relationship between the contents of U and organic carbon (Corg) in the analyzed rocks, typical for the lower and middle Cambrian black shale deposits sampled from the outcrops in the eastern parts of the Siberian Platform. For the first time, a relationship of rock radioactivity by gamma-ray logging with the contents of U and Corg in Cambrian rocks was established.

KW - Kuonamka Formation

KW - Siberian Platform

KW - biostratigraphy

KW - carbon

KW - lower and middle Cambrian

KW - radioactivity

KW - source rocks

KW - trilobites

KW - uranium

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85184236039&origin=inward&txGid=8362c6afa6bb38a0fd9bc4f5f3399492

UR - https://www.mendeley.com/catalogue/770f5373-cb6d-3264-820d-c9e24f97a6ca/

U2 - 10.2113/RGG20234630

DO - 10.2113/RGG20234630

M3 - Article

VL - 65

SP - 126

EP - 136

JO - Russian Geology and Geophysics

JF - Russian Geology and Geophysics

SN - 1068-7971

IS - 1

ER -

ID: 59712066