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Geochemistry and tectonic significance of permian oib-type basalts from aranbaotai in karakorum mts. , xinjiang, nw china

文献类型:期刊论文

作者Ren GuangLi1,2; Wang He1; Liu JianPing1,2; Wu YuFeng1,2; Fu WangWei1,2; Huang ChaoYang1,2
刊名Acta petrologica sinica
出版日期2010-10-01
卷号26期号:10页码:3085-3094
关键词Oib-type basalts Trace element Geochemistry Aranbaotai Karakorum mts.
ISSN号1000-0569
通讯作者Ren guangli(renguangli9977@163.com)
英文摘要A suits of middle permian strata consists of limestone, tuff and pillow basalts outcrop in aranbaotai area, locating the west of karakorum fault (taxkorgan fault) in karakorum mts. the basalts distribution in nw strike with 12km long and 4. 5km wide in west aranbaotai. the basalt has typical pillow structure, with pillow size from 0. 5m to 0. 8m, with stoma and amygdaloidal structure. the rock contents sio2 from 44. 14% to 48. 81%, tio2 from 1. 11% to 1. 83%, plotting in the boundary area of the picrobasalt, basalt, and tephrite basanite, belong to alkaline series. the rare earth elements (ree) contents vary from 54. 40 x 10(-6) to 139. 89 x 10(-6), with no eu and ce anomaly and (la/yb)(n) of 2. 87 to 6. 29. in the chondrite- normalized diagram, the patterns of the basalts are slight right dip type. the basalts contents variable large ion lithophile elements (lile) (e. g. k, rb and ba), and relatively deplete in the high field-strength elements (eg. nb, ta, zr, hf and p), show ti slight negative anomaly. the geochemical characteristics of the basalts show they have ocean island basalts, derived from the partial melting of spinel lherzolite. these middle permian basalts from aranbaotai area in karakorum mts. maybe present the location of the main ocean basin of the paleo-tethys ocean.
WOS关键词THOLEIITES ; DIAGRAM ; CANADA ; ORIGIN ; GA
WOS研究方向Geology
WOS类目Geology
语种英语
WOS记录号WOS:000284450800020
出版者SCIENCE PRESS
URI标识http://www.irgrid.ac.cn/handle/1471x/2408405
专题中国科学院大学
通讯作者Ren GuangLi
作者单位1.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Ren GuangLi,Wang He,Liu JianPing,et al. Geochemistry and tectonic significance of permian oib-type basalts from aranbaotai in karakorum mts. , xinjiang, nw china[J]. Acta petrologica sinica,2010,26(10):3085-3094.
APA Ren GuangLi,Wang He,Liu JianPing,Wu YuFeng,Fu WangWei,&Huang ChaoYang.(2010).Geochemistry and tectonic significance of permian oib-type basalts from aranbaotai in karakorum mts. , xinjiang, nw china.Acta petrologica sinica,26(10),3085-3094.
MLA Ren GuangLi,et al."Geochemistry and tectonic significance of permian oib-type basalts from aranbaotai in karakorum mts. , xinjiang, nw china".Acta petrologica sinica 26.10(2010):3085-3094.

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来源:中国科学院大学

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