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学科主题: Geosciences, Multidisciplinary
题名: Modern microbialites and their environmental significance, Meiji reef atoll, Nansha (Spratly) Islands, South China Sea
作者: Shen, JW ; Wang, Y
通讯作者: jwshen@scsio.ac.cn
关键词: microbialite ; Meiji reef ; Nansha Island ; South China Sea
刊名: SCIENCE IN CHINA SERIES D-EARTH SCIENCES
发表日期: 2008-01-01
卷: 51, 期:4, 页:608-617
收录类别: sci
部门归属: [Shen JianWei; Wang Yue] Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510301, Peoples R China; [Wang Yue] Grad Univ, Chinese Acad Sci, Beijing 100049, Peoples R China
项目归属: 海洋地质
摘要: Meiji (Mischief) coral atoll, in Nansha (Spratly) Islands, South China Sea, consists of an annular reef rim surrounding a central lagoon. On the atoll rim there are either protuberant 'motu' (small coral patch reefs on the rim of atoll) islets or lower sandy cays that contain modern microbialite deposits on the corals in pinnacles and surrounding bottoms of the atoll. Microbialites, including villiform, hairy, and thin spine growth forms, as well as gelatinous masses, mats and encrustation, developed on coral colonies and atoll rim sediments between 0 and 15 m deep-water settings. The microbialites were produced by natural populations of filamentous cyanobacteria and grew on (1) bulbous corals together with Acropora sp., (2) on massive colonies of Galaxea fascicularis, (3) on dead Montipora digitata, and (4) on dead Acropora teres, some hairy microbialite growing around broken coral branches. This study demonstrates that microbial carbonates are developed in coral reefs of South China Sea and indicates that microbial processes may be important in the construction of modern reef systems. The results have significance in the determination of nature and composition in microorganisms implied in the formation ancient microbialites, and permit evaluation of the importance of microbial deposits in modern coral reefs and of 'microbialites' in biogeochemical cycles of modern coral reef systems. The results also provide evidence of modern analogues for ancient microbialites in shallow-water settings, and combine with sedimentological studies of ancient microbialites to understand their controls.
原文出处: 查看原文
内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/4568
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:
Shen, JW; Wang, Y.Modern microbialites and their environmental significance, Meiji reef atoll, Nansha (Spratly) Islands, South China Sea,SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2008,51(4):608-617
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文件名: Modern microbialites and their environmental signifi-cance, Meiji reef atoll, Nansha (Spratly) Islands, South China Sea.pdf
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