Changes in Terrestrial Organic Matter Input to the Western Kolchumskaya Anticlinal, During the Jurassic

Авторы: Попов П.П., Хопта И.С.
Журнал: Lecture Notes in Networks and Systems
Том: 622
Год издания: 2023
Издательство: SPRINGER
Местоположение издательства: VAN GODEWIJCKSTRAAT 30, DORDRECHT, NETHERLANDS, 3311GZ
Первая страница: 409
Последняя страница: 416
DOI: 10.1007/978-3-031-28086-3_34
Аннотация: Integrated terrestrial and marine records of Western Siberia vegetation are needed to provide long high resolution records of environmental variability with established links to specific terrestrial environments. We analyzed higher plant biomarkers in Jurassic sediments. Molecular abundance distributions indicate that long chain n-alkanoic acids in marine sediments are the most reliable proxy for terrestrial vegetation (Carbon Preference Index, CPI = 1.66). Variations in the concentrations of long-chain n-alkanes and indicate a higher contribution of terrestrial OM (OMofhigher plants). The ACLvalues ofn-alkanes for the studied interval 28.03 (27.65–28.59) indicate a warm (tropical) region of the source of OMformation. The narrow range of Paq values suggests that the amount of water seeping through the swamp was fairly stable over most of the time interval under consideration. The water level in the peat bog was elevated during most of the period under review.
Добавил в систему: Попов Павел Петрович

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