Paleo-reconstruction

详细信息    Paleo-reconstruction

• 出版日期：2004.
• 页数：1 v. :
• 第一责任说明：Zhengzheng Chen.
• 分类号：a273 ; a452
• ISBN：0496138308(ebk.) :

MARC全文

02h0029524 20120620165814.0 cr un||||||||| 120620s2004 xx ||||f|||d||||||||eng | 3153515 0496138308(ebk.) : CNY371.35 NGL NGL NGL a273 ; a452 Chen, Zhengzheng. Paleo-reconstruction [electronic resource] : using multiple biomarker parameters / Zhengzheng Chen. 2004. 1 v. : digital, PDF file. Adviser: Moldowan, J. Michael. Thesis (Ph.D.)--Stanford University, 2004. Advanced technologies have played essential roles in the development of molecular organic geochemistry. In this thesis, we have developed several new techniques and explored their applications, alone and with previous techniques, to paleo-reconstruction. First, we developed a protocol to separate biomarker fractions for accurate measurement of compound-specific isotope analysis. This protocol involves combination of zeolite adduction and HPLC separation. Second, an integrated study of traditional biomarker parameters, diamondoids and compound-specific biomarker isotopes, differentiated oil groups from Saudi Arabia. Specifically, Cretaceous reservoired oils were divided into three groups and the Jurassic reservoired oils were divided into two groups. Third, biomarker acids provide an alternative way to characterize biodegradation. Oils from San Joaquin Valley, U.S.A. and oils from Mediterranean display drastically different acid profiles. These differences in biomarker acids probably reflect different processes of biodegradation. Fourth, by analyzing biomarker distributions in the organic-rich rocks recording the onset of Late Ordovician extinction, we propose that changes in salinity associated with eustatic sea-level fall, contributed at least locally to the extinction of graptolite species. Organic geochemistry. ; Petroleum Geology. Electronic dissertations. aeBook. aCN bNGL http://pqdt.bjzhongke.com.cn/Detail.aspx?pid=8ujoNEzWiUI%3d NGL Bs1580 rCNY371.35 ; h1 bs1204