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学科主题: Geosciences, Multidisciplinary
题名: Microbial carbonates in Holocene beachrocks, Shuiweiling, Luhuitou Peninsula, Hainan Island
作者: Teng, JB ; Shen, JW
通讯作者: jianbinteng@scsio.ac.cn
关键词: microbial carbonates ; microbial cements ; beachrock ; Holocene ; Hainan Island
刊名: SCIENCE IN CHINA SERIES D-EARTH SCIENCES
发表日期: 2008
卷: 51, 期:1, 页:30-40
收录类别: sci
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
项目归属: 海洋地质
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.
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WOS记录号: WOS:000251412300004
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/4582
Appears in Collections:中科院边缘海地质重点实验室_期刊论文

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Recommended Citation:
Teng, JB; Shen, JW.Microbial carbonates in Holocene beachrocks, Shuiweiling, Luhuitou Peninsula, Hainan Island,SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2008,51(1):30-40
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文件名: Microbial carbonates in Holocene beachrocks, Shui-weiling, Luhuitou Peninsula, Hainan Island.pdf
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