Geochemistry of organic matter of bottom sediments in the rises of the central Arctic Ocean. / Petrova, V. I.; Batova, G. I.; Kursheva, A. V.; Litvinenko, I. V.
In: Russian Geology and Geophysics, Vol. 51, No. 1, 01.01.2010, p. 88-97.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Geochemistry of organic matter of bottom sediments in the rises of the central Arctic Ocean
AU - Petrova, V. I.
AU - Batova, G. I.
AU - Kursheva, A. V.
AU - Litvinenko, I. V.
PY - 2010/1/1
Y1 - 2010/1/1
N2 - Based on geomorphological, lithological, and facial characteristics of the East Arctic continental margin, we studied the main factors controlling the Late Cenozoic supply of organic matter (OM) to the bottom sediments of the Central Arctic rises of the Arctic Ocean. Complex analysis of dispersed OM in the samples taken during the expeditions of the R/V "Akademik Fedorov" in 2000 and 2005 showed a significant difference between the sediments of the Lomonosov Ridge and Mendeleev Rise. The bottom sediments of the latter are strongly transformed and lack terrigenous components, as evidenced results from the main geochemical characteristics (contents of Corg, Ccarb, Norg, bitumens, and humic acids) and the composition and distribution of hydrocarbon molecular markers (alkanes, saturated and aromatic cyclanes). The obtained data evidence that ancient sedimentary rocks containing genetically uniform deeply transformed (up to mesocatagenesis) OM played a significant role in the formation of the Pleistocene-Holocene sediments of the axial part of the Mendeleev Rise.
AB - Based on geomorphological, lithological, and facial characteristics of the East Arctic continental margin, we studied the main factors controlling the Late Cenozoic supply of organic matter (OM) to the bottom sediments of the Central Arctic rises of the Arctic Ocean. Complex analysis of dispersed OM in the samples taken during the expeditions of the R/V "Akademik Fedorov" in 2000 and 2005 showed a significant difference between the sediments of the Lomonosov Ridge and Mendeleev Rise. The bottom sediments of the latter are strongly transformed and lack terrigenous components, as evidenced results from the main geochemical characteristics (contents of Corg, Ccarb, Norg, bitumens, and humic acids) and the composition and distribution of hydrocarbon molecular markers (alkanes, saturated and aromatic cyclanes). The obtained data evidence that ancient sedimentary rocks containing genetically uniform deeply transformed (up to mesocatagenesis) OM played a significant role in the formation of the Pleistocene-Holocene sediments of the axial part of the Mendeleev Rise.
KW - Arctic
KW - Arctic Ocean
KW - bottom sediments
KW - dispersed organic matter
KW - geochemistry
KW - hydrocarbon molecular markers
UR - http://www.scopus.com/inward/record.url?scp=72549083394&partnerID=8YFLogxK
U2 - 10.1016/j.rgg.2009.12.008
DO - 10.1016/j.rgg.2009.12.008
M3 - Article
AN - SCOPUS:72549083394
VL - 51
SP - 88
EP - 97
JO - Russian Geology and Geophysics
JF - Russian Geology and Geophysics
SN - 1068-7971
IS - 1
ER -
ID: 47855643