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Source rocks of Carboniferous-Lower Cretaceous terrigenous sediments of the northeastern Siberian Platform : Results of Sm-Nd isotope-geochemical studies. / Malyshev, S. V.; Khudoley, A. K.; Prokopiev, A. V.; Ershova, V. B.; Kazakova, G. G.; Terentyeva, L. B.

In: Russian Geology and Geophysics, Vol. 57, No. 3, 01.03.2016, p. 421-433.

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@article{3c30d4b5cfd649e68a280103d1026fc3,
title = "Source rocks of Carboniferous-Lower Cretaceous terrigenous sediments of the northeastern Siberian Platform: Results of Sm-Nd isotope-geochemical studies",
abstract = "The first Sm-Nd isotope studies of the Carboniferous-Early Cretaceous clastic rocks of the northeastern Siberian Platform have been carried out. Variation in the isotope composition of sediments within this time interval has been determined and interpreted. The high εNd(t) values for Carboniferous-Permian sediments (from -11 to -2) testify to the large contribution of the products of erosion of island-arc and juvenile complexes localized in the Taimyr-Severnaya Zemlya fold-thrust belt in the Carboniferous. The positive εNd(t) values for Triassic sandstones suggest erosion of the coeval igneous rocks of the trap association. The Upper Jurassic and, particularly, Cretaceous sediments of the Lena-Anabar depression and Verkhoyansk foreland basin are characterized by extremely negative εNd(t) values (from -15 to -19), which is evidence for erosion of mature continental crust. The Carboniferous-Triassic complexes of the Verkhoyansk fold-thrust belt, which show higher εNd(t) values, cannot have been a source of detritus for Cretaceous sandstones. The sediments filling the Verkhoyansk foreland basin accumulated as a result of the decomposition of homogenized distal source rocks with the isotope characteristics of the old crust rather than the breakup of the mountain range rising to the east. Salients of the crystalline basement of the Siberian Platform, such as the Aldan Shield, might have been these source provinces.",
keywords = "Carboniferous, Mesozoic, Permian, Siberian continent, Source rocks, Verkhoyansk foreland basin, Verkhoyansk passive margin, ε",
author = "Malyshev, {S. V.} and Khudoley, {A. K.} and Prokopiev, {A. V.} and Ershova, {V. B.} and Kazakova, {G. G.} and Terentyeva, {L. B.}",
year = "2016",
month = mar,
day = "1",
doi = "10.1016/j.rgg.2016.03.005",
language = "English",
volume = "57",
pages = "421--433",
journal = "Russian Geology and Geophysics",
issn = "1068-7971",
publisher = "Elsevier",
number = "3",

}

RIS

TY - JOUR

T1 - Source rocks of Carboniferous-Lower Cretaceous terrigenous sediments of the northeastern Siberian Platform

T2 - Results of Sm-Nd isotope-geochemical studies

AU - Malyshev, S. V.

AU - Khudoley, A. K.

AU - Prokopiev, A. V.

AU - Ershova, V. B.

AU - Kazakova, G. G.

AU - Terentyeva, L. B.

PY - 2016/3/1

Y1 - 2016/3/1

N2 - The first Sm-Nd isotope studies of the Carboniferous-Early Cretaceous clastic rocks of the northeastern Siberian Platform have been carried out. Variation in the isotope composition of sediments within this time interval has been determined and interpreted. The high εNd(t) values for Carboniferous-Permian sediments (from -11 to -2) testify to the large contribution of the products of erosion of island-arc and juvenile complexes localized in the Taimyr-Severnaya Zemlya fold-thrust belt in the Carboniferous. The positive εNd(t) values for Triassic sandstones suggest erosion of the coeval igneous rocks of the trap association. The Upper Jurassic and, particularly, Cretaceous sediments of the Lena-Anabar depression and Verkhoyansk foreland basin are characterized by extremely negative εNd(t) values (from -15 to -19), which is evidence for erosion of mature continental crust. The Carboniferous-Triassic complexes of the Verkhoyansk fold-thrust belt, which show higher εNd(t) values, cannot have been a source of detritus for Cretaceous sandstones. The sediments filling the Verkhoyansk foreland basin accumulated as a result of the decomposition of homogenized distal source rocks with the isotope characteristics of the old crust rather than the breakup of the mountain range rising to the east. Salients of the crystalline basement of the Siberian Platform, such as the Aldan Shield, might have been these source provinces.

AB - The first Sm-Nd isotope studies of the Carboniferous-Early Cretaceous clastic rocks of the northeastern Siberian Platform have been carried out. Variation in the isotope composition of sediments within this time interval has been determined and interpreted. The high εNd(t) values for Carboniferous-Permian sediments (from -11 to -2) testify to the large contribution of the products of erosion of island-arc and juvenile complexes localized in the Taimyr-Severnaya Zemlya fold-thrust belt in the Carboniferous. The positive εNd(t) values for Triassic sandstones suggest erosion of the coeval igneous rocks of the trap association. The Upper Jurassic and, particularly, Cretaceous sediments of the Lena-Anabar depression and Verkhoyansk foreland basin are characterized by extremely negative εNd(t) values (from -15 to -19), which is evidence for erosion of mature continental crust. The Carboniferous-Triassic complexes of the Verkhoyansk fold-thrust belt, which show higher εNd(t) values, cannot have been a source of detritus for Cretaceous sandstones. The sediments filling the Verkhoyansk foreland basin accumulated as a result of the decomposition of homogenized distal source rocks with the isotope characteristics of the old crust rather than the breakup of the mountain range rising to the east. Salients of the crystalline basement of the Siberian Platform, such as the Aldan Shield, might have been these source provinces.

KW - Carboniferous

KW - Mesozoic

KW - Permian

KW - Siberian continent

KW - Source rocks

KW - Verkhoyansk foreland basin

KW - Verkhoyansk passive margin

KW - ε

UR - http://www.scopus.com/inward/record.url?scp=84962179634&partnerID=8YFLogxK

U2 - 10.1016/j.rgg.2016.03.005

DO - 10.1016/j.rgg.2016.03.005

M3 - Article

VL - 57

SP - 421

EP - 433

JO - Russian Geology and Geophysics

JF - Russian Geology and Geophysics

SN - 1068-7971

IS - 3

ER -

ID: 7558622