The origin of bedding-parallel fibrous calcite veins in the Lower Permian Chihsia Formation in western Hubei Province, South China
文献类型：期刊论文
| 作者 | Yu, Hao1; Zhou, XiQiang2; Wang, JianGuo2; Guo, Chuan2; Wei, HengYe3; Chen, DaiZhao2 |
| 刊名 | SCIENCE BULLETIN
 |
| 出版日期 | 2015-10-01 |
| 卷号 | 60期号:20页码:1778-1786 |
| 关键词 | Fibrous calcite vein C-O-S isotope Diagenesis Chihsia Formation |
| DOI | 10.1007/s11434-015-0903-z |
| 文献子类 | Article |
| 英文摘要 | Bedding-parallel fibrous veins occurring as lenticular to flattened intercalations were found in the organic-rich marlstone/calcareous shale of the upper Lower Permian Chihsia Formation in western Hubei Province, South China. They dominantly consist of fibrous calcite crystals with smooth and tight boundaries, forming fence-like inward, syntaxial growth clusters toward the vein center along which a median suture line generally occurs. Petrographic evidence indicates that these veins may form at relatively shallow burial depth, where fluid overpressures would have incrementally created the bed-parallel vein space, resulting in displacive growth of fibrous calcite. On the other hand, the C, O and S isotopic data across the vein reveal slightly depleted delta C-13(carb) values (-3.32 parts per thousand to +0.19 parts per thousand VPDB) and moderately depleted delta O-18(carb) values (-9.6 parts per thousand to -7.3 parts per thousand VPDB) with respect to those of coeval seawaters and slightly heavier delta S-34(pyrite) values (-7.88 parts per thousand CDT) with respect to those of ambient rocks. Stable isotope evidence consistently suggests significant contribution of bacterial sulfate reduction (BSR) to the formation of the fibrous calcite cements in the vein. The BSR could have been intensive with the availabilities of residual sulfate and abundant organic matters in the Chihsia sediments during shallow burial, increasing the alkalinity of pore waters and further promoting carbonate precipitation. Thus, the bedding-parallel fibrous calcite vein in the upper Lower Permian Chihsia Formation is an important time-specific petrographic capsule, providing clues for understanding the diagenetic process in organic-rich sediments. |
| WOS关键词 | THERMOCHEMICAL SULFATE REDUCTION ; GULF-OF-MEXICO ; CARBONATE CONCRETIONS ; ISOTOPIC COMPOSITION ; DIAGENETIC CONDITIONS ; CLUMPED ISOTOPES ; PORE-WATER ; SEDIMENTS ; BACTERIAL ; METHANE |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000364029100009 |
| 资助机构 | National Natural Science Foundation of China(40839907 ; National Natural Science Foundation of China(40839907 ; 41302021 ; 41302021 ; 41203030) ; 41203030) ; National Natural Science Foundation of China(40839907 ; National Natural Science Foundation of China(40839907 ; 41302021 ; 41302021 ; 41203030) ; 41203030) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/62178]  |
| 专题 | 地质与地球物理研究所_中国科学院油气资源研究重点实验室 |
| 作者单位 | 1.Peking Univ, Minist Educ, Key Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China 3.E China Inst Technol, Coll Earth Sci, Nanchang 330013, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Hao,Zhou, XiQiang,Wang, JianGuo,et al. The origin of bedding-parallel fibrous calcite veins in the Lower Permian Chihsia Formation in western Hubei Province, South China[J]. SCIENCE BULLETIN,2015,60(20):1778-1786. |
| APA | Yu, Hao,Zhou, XiQiang,Wang, JianGuo,Guo, Chuan,Wei, HengYe,&Chen, DaiZhao.(2015).The origin of bedding-parallel fibrous calcite veins in the Lower Permian Chihsia Formation in western Hubei Province, South China.SCIENCE BULLETIN,60(20),1778-1786. |
| MLA | Yu, Hao,et al."The origin of bedding-parallel fibrous calcite veins in the Lower Permian Chihsia Formation in western Hubei Province, South China".SCIENCE BULLETIN 60.20(2015):1778-1786. |
入库方式： OAI收割
来源：地质与地球物理研究所
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