Geochemical Significance of Bicyclic Sesquiterpanes in the Hydrothermal Oil of the Uzon Volcano Caldera (Kamchatka)

被引：2
|
作者：
Konopleva, I. V. [1 ]
Sevastianov, V. S. [1 ]
机构：
[1] Russian Acad Sci, Vernadsky Inst Geochem & Analyt Chem, Moscow 119991, Russia
来源：
GEOCHEMISTRY INTERNATIONAL | 2023年 / 61卷 / 02期
关键词：
bicyclic sesquiterpanes; oil of the Uzon caldera; hydrothermal oil; maturity indices; IDENTIFICATION; DRIMANE;
D O I：
10.1134/S0016702923020052
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
The composition and relative content of C-14-C-16 bicyclic sesquiterpanes in oil seeps from thermal springs of the Uzon caldera have been studied by GC-MS technique. It is shown that C-16 homodrimanes prevail in oil composition, whereas C-15 drimane content is insignificant, and C-14 nordrimanes are present in trace amounts. Homodrimane with biological configuration 8 alpha(H) was detected. Bicyclic sesquiterpanes of the Uzon oil are probably its derivatives. It has been revealed that the relative content of C-15 drimanes increased with increasing thermal maturity of the oil. A sesquiterpane maturity index, which has not been used previously in organic geochemistry, is proposed.
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收藏
页码：203 / 209
页数：7
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