Petrographic and geochemical characterization of seep carbonate from alaminos canyon, gulf of mexico
文献类型：期刊论文
| 作者 | Feng Dong1,2; Chen DuoFu1; Qi Lian3; Roberts, Harry H.4 |
| 刊名 | Chinese science bulletin
 |
| 出版日期 | 2008-06-01 |
| 卷号 | 53期号:11页码:1716-1724 |
| 关键词 | Seep carbonate Carbon and oxygen isotope Rare earth element C-14 dating Redox condition Gulf of mexico Alaminos canyon |
| ISSN号 | 1001-6538 |
| DOI | 10.1007/s11434-008-0157-0 |
| 通讯作者 | Chen duofu(cdf@gig.ac.cn) |
| 英文摘要 | Seep carbonates were collected from the alaminos canyon lease area, gulf of mexico. the carbonates are present as slabs and blocks. bivalve shell and foraminifer are the dominant bioclasts in carbonate. pores are common and usually filled with acicular aragonite crystals. xrd investigation shows that aragonite is the dominate mineral (98%). peloids, clotted microfabirc and botryoidal aragonite are developed in carbonate and suggest a genesis linked with bacterial degradation of the hydrocarbons. the sigma c-13 value of bloclasts in carbonate is from -4.9 parts per thousand to -0.6 parts per thousand, indicating that the carbon source is mainly from sea water as well as the small portion incorporation of the seep hydrocarbon. the microcrystalline and sparite aragonite shows the sigma c-13 value from -31.3 parts per thousand to -23.4 parts per thousand, suggesting that their carbon is derived mainly from microbial degradation of crude oil. c-14 analyses give the radiocarbon age of about 10 ka. rare earth elements (ree) analyses of the 5% hno3-treated solution of the carbonates show that the total ree content of the carbonates is low, that is from 0.752 to 12.725 mu g center dot g(-1). the shale-normalized ree patterns show significantly negative ce anomalies. this suggests that cold seep carbonate is most likely formed in a relatively aerobic environment. |
| WOS关键词 | SOUTH CHINA SEA ; CONTINENTAL-SLOPE ; HYDROCARBON SEEPS ; METHANE-SEEPS ; HYDRATE DESTABILIZATION ; AUTHIGENIC CARBONATES ; WESTERN WASHINGTON ; GAS VENT ; MARINE ; PALEOENVIRONMENTS |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000256188200015 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2392787 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Chen DuoFu |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Marginal Sea Geol, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Chinese Acad Sci, State Key Lab Ore Deposit Geochem, Inst Geochem, Guiyang 550002, Peoples R China 4.Louisiana State Univ, Inst Coastal Studies, Baton Rouge, LA 70803 USA |
| 推荐引用方式 GB/T 7714 | Feng Dong,Chen DuoFu,Qi Lian,et al. Petrographic and geochemical characterization of seep carbonate from alaminos canyon, gulf of mexico[J]. Chinese science bulletin,2008,53(11):1716-1724. |
| APA | Feng Dong,Chen DuoFu,Qi Lian,&Roberts, Harry H..(2008).Petrographic and geochemical characterization of seep carbonate from alaminos canyon, gulf of mexico.Chinese science bulletin,53(11),1716-1724. |
| MLA | Feng Dong,et al."Petrographic and geochemical characterization of seep carbonate from alaminos canyon, gulf of mexico".Chinese science bulletin 53.11(2008):1716-1724. |
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来源：中国科学院大学
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