TY - JOUR

T1 - Clastic Rocks of the Basement-Overlying Proterozoic Sedimentary Sequences: Communication 2. Sandstones and Main Features of Lithogeochemistry

AU - Maslov, A.V.

AU - Podkovyrov, V.N.

AU - Khudoley, A.K.

AU - Kuptsova, A.V.

N1 - Export Date: 01 November 2025; Cited By: 0; Correspondence Address: A.V. Maslov; Geological Institute, Russian Academy of Sciences, Moscow, 119017, Russian Federation; email: amas2004@mail.ru; V.N. Podkovyrov; Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences, St. Petersburg, 199034, Russian Federation; email: vpodk@mail.ru; A.K. Khudoley; Institute of Earth Sciences, St. Petersburg State University, St. Petersburg, 199155, Russian Federation; email: akhudoley@gmail.com

PY - 2025/9/14

Y1 - 2025/9/14

N2 - Abstract: Based on the analysis of the bulk chemical composition of sandstones that make up the Proterozoic sedimentary sequences, which unconformably overlie the basement (Ai and Prikamsk formations; Mukun and Valdai groups; Kerur Formation; Gwalior, Athabasca, Libby Creek, Wufoshan, and Birim groups, and others), it has been shown that the content of the major oxides and trace elements in them in the overwhelming majority of cases differs significantly from the chemical composition of the average Proterozoic cratonic sandstone. Their composition corresponds mainly to litharenites, sublitharenites, arkoses, and subarkoses according to the classifications proposed by F.J. Pettijohn with co-authors and M. Herron. Most of the sandstones from the analyzed set belong to rocks containing a significant or predominant part of the lithogenic component. The detrital material composing the sandstones was sourced from fairly mature substrates, with insignificant role of the basic igneous and metamorphic (?) rocks. The bulk chemical composition of sandstones and the paleogeodynamic nature of rocks suggest that the substrates were produced by various orogenic/collisional and rifting events. As with the fine-grained clastic rocks in the studied Proterozoic sedimentary sequences, obviously, not all of the discriminant diagrams used in this study yield consistent results. © 2025 Elsevier B.V., All rights reserved.

AB - Abstract: Based on the analysis of the bulk chemical composition of sandstones that make up the Proterozoic sedimentary sequences, which unconformably overlie the basement (Ai and Prikamsk formations; Mukun and Valdai groups; Kerur Formation; Gwalior, Athabasca, Libby Creek, Wufoshan, and Birim groups, and others), it has been shown that the content of the major oxides and trace elements in them in the overwhelming majority of cases differs significantly from the chemical composition of the average Proterozoic cratonic sandstone. Their composition corresponds mainly to litharenites, sublitharenites, arkoses, and subarkoses according to the classifications proposed by F.J. Pettijohn with co-authors and M. Herron. Most of the sandstones from the analyzed set belong to rocks containing a significant or predominant part of the lithogenic component. The detrital material composing the sandstones was sourced from fairly mature substrates, with insignificant role of the basic igneous and metamorphic (?) rocks. The bulk chemical composition of sandstones and the paleogeodynamic nature of rocks suggest that the substrates were produced by various orogenic/collisional and rifting events. As with the fine-grained clastic rocks in the studied Proterozoic sedimentary sequences, obviously, not all of the discriminant diagrams used in this study yield consistent results. © 2025 Elsevier B.V., All rights reserved.

KW - basement

KW - lithogeochemistry

KW - Proterozoic

KW - sandstones

UR - https://www.mendeley.com/catalogue/3e2c1208-f545-342b-9317-ebf92e67fa66/

U2 - 10.1134/s0024490225700208

DO - 10.1134/s0024490225700208

M3 - статья

VL - 60

SP - 512

EP - 526

JO - Lithology and Mineral Resources

JF - Lithology and Mineral Resources

SN - 0024-4902

IS - 5

ER -