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Microbial carbonates in Holocene beachrocks, Shuiweiling, Luhuitou Peninsula, Hainan Island
Teng, JB; Shen, JW; jianbinteng@scsio.ac.cn
2008
发表期刊SCIENCE IN CHINA SERIES D-EARTH SCIENCES
ISSN1006-9313
卷号51期号:1页码:30-40
摘要Two research methods, geomicrobiology and carbonate sedimentology, were adopted to study the microbial carbonates in the beachrocks, Shuiweiling, Luhuitou, Sanya City, Hainan Island. The results indicate that microbial carbonates occur in Shuiweiling beachrocks and cements related to microbial activitives are common. Microbial carbonates were mainly developed on the surfaces of coral skeletons and within the coral (fragments and shivers) skeletal cavities, and rarely grew in interspaces formed by coral and other biological detritus. The growth morphologies of microbial carbonates are various, including stromatolitic lamination, thin crusts, dome-like, and microbialites. Microbial carbonates commonly trap fine-sized bioclasts, contain tubular filaments, and show laminated growth striation. Microbial carbonates within the coral skeletal cavities are generally stromatolitic cone-shaped, with a random growth direction along the bearing of trend of cavities, showing distinct growth laminae and recognizable growth phases. It is a special growth pattern of crypt microbial carbonates. Microbial cements occur mainly in shape of needle cement, calcified filaments, microborings, and calcified framboidal spheres. The needle cement is the most common type. These microbial cements indicate that microbial activities and microbial carbonates played an important role in beachrock formation in which carbonates were dominant components and the climate of tropical ocean monsoon was influential. Such microbial carbonates and microbial cementation have not been reported here from beachrocks along the northern shorelines of the South China Sea. The results support a clear microbial origin for certain carbonate cements in beachrocks, confirm that microbial carbonates are a significant contributor to carbonate sedimentation, and widen the knowledge of beachrocks from a new field.
部门归属S China Sea Inst Oceanol, Dept Marine Geol, Guangzhou 510301, Peoples R China; Chinese Acad Sci, S China Sea Inst Oceanol, CAS Key Lab Marginal Sea Geol, Guangzhou 510301, Peoples R China; Grad Univ China, Chinese Acad Sci, Beijing 100049, Peoples R China
关键词Microbial Carbonates Microbial Cements Beachrock Holocene Hainan Island
学科领域Geosciences, Multidisciplinary
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收录类别sci
资助项目海洋地质
WOS记录号WOS:000251412300004
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被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/4582
专题中科院边缘海地质重点实验室
通讯作者jianbinteng@scsio.ac.cn
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Teng, JB,Shen, JW,jianbinteng@scsio.ac.cn. Microbial carbonates in Holocene beachrocks, Shuiweiling, Luhuitou Peninsula, Hainan Island[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2008,51(1):30-40.
APA Teng, JB,Shen, JW,&jianbinteng@scsio.ac.cn.(2008).Microbial carbonates in Holocene beachrocks, Shuiweiling, Luhuitou Peninsula, Hainan Island.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,51(1),30-40.
MLA Teng, JB,et al."Microbial carbonates in Holocene beachrocks, Shuiweiling, Luhuitou Peninsula, Hainan Island".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 51.1(2008):30-40.
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