Re-Os (ICP-MS) dating of marine oil shale in the Qiangtang basin, northern Tibet, China

被引：30

作者：

Fu Xiugen ^{[1
]}

Wang Jian ^{[1
]}

Qu Wenjun ^{[2
]}

Duan Taizhong ^{[3
]}

Du Andao ^{[2
]}

Wang Zhengjiang ^{[1
]}

Liu Hua ^{[2
]}

机构：

[1] China Geol Survey, Chendu Inst Geol & Mineral Reaources, Chengdu 610081, Peoples R China

[2] Natl Res Ctr Geoanal, Beijing 100037, Peoples R China

[3] Marathon Oil Co, Houston, TX USA

来源：

OIL SHALE | 2008年 / 25卷 / 01期

关键词：

D O I：

10.3176/oil.2008.1.06

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 [动力工程及工程热物理]; 0820 [石油与天然气工程];

摘要：

Marine oil shale from the Shenglihe oil shale section in the Qiangtang basin, northern Tibet China, was dated by the Re-Os technique using Carius Tube digestion, Os distillation, Re extraction by acetone and ICP-MS measurement. An isochron was obtained giving an age of 101 +/- 24 Ma with an initial Os-187/Os-188 ratio of 1.84 +/- 0.11(n = 11, MSWD = 3.5). The Re-Os age agrees with the geological age derived from biostratigraphic data, indicating the great potential of the Re-Os method for dating the marine oil shale. Our new data (Bilong Co oil shale) also show that the samples must derive from the same layer of oil shales to determine an accurate and precise depositional age for the marine oil shale with the Re-187-Os-187 radioisotope system.

引用

页码：47 / 55

页数：9

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