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Distinguishing coral reef facies from coral-bearing open platform facies: Examples from Ordovician Ordos Basin, Northwest China

文献类型：期刊论文

作者Zheng, Lijing1,2; Bao, Hongping3; Wu, Yasheng1,2,4; Sun, Liuyi3; Jiang, Hongxia5,6; Ren, Junfeng3; Huang, Zhengliang3; Liu, Lijing7
刊名PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
出版日期2018-04-15
卷号495页码:72-86
关键词Boundstones Patch reef Community paleoecology Shijiezigou Upper Ordovician
ISSN号0031-0182
DOI10.1016/j.palaeo.2017.12.031
文献子类Article
英文摘要Fossil coral communities are often simply considered as "coral reefs." In fact, coral-bearing communities are not necessarily coral reefs. The key criterion is whether the corals are in situ and if they are abundant enough to form topographic relief. Two outcropped profiles in the western margin of the Ordos Basin, northwestern China, drill cores of the Lianglitag Formation from 4 wells in the Tarim Basin and 500 large thin sections were examined in this study to reveal the difference between coral reefs and coral-bearing carbonate open platform facies in Upper Ordivician carbonate succession. The second layer of the Shijiezigou section is massive in internal structure, mound-like in shape, 5.0 m in height and 33.6 m in width and is interpreted as a patch reef in an open platform. This layer has a variety of corals that are preserved in situ. Reef-dwelling organisms include dasycladaceans, crinoids and gastropods. Other layers of the section are bedded limestones, many of which bear corals and crinoids, while others bear dasycladaceans or only the Dasycladacea genus Vermiporella. Unlike in the reef, the corals in the open platform facies are sparse and generally occur as fragments, most of which are not preserved in situ. According to the dominant species, four communities are distinguished from the Shijiezigou section, namely, the Vermiporella community, coral community, crinoid-coral community and dasycladacean-crinoid community, each of which adapted to some special environmental conditions. The patch reef of the Shijiezigou section contain abundant and diverse tabulate corals, which form bafflestones, while stromatoporoids are the primary builders in the platform margin reefs of well TZ 822 and the Lijiapo section. The common biotic components of the open platform of the Shijiezigou section and well TZ 822 are crinoids and dasycladaceans. The restricted platform of the Shijiezigou section is dominated by the dasycladacean Vermiporella, while the organisms of the restricted platform facies in well TZ 35 are mainly composed of cyanobacteria, ostracods and Tetradium-like organisms.
WOS关键词NEW-YORK-STATE ; TARIM BASIN ; NW CHINA ; LIANGLITAG FORMATION ; FOSSIL COMMUNITIES ; PATCH REEFS ; SOUTH CHINA ; MUD MOUNDS ; CANADA ; PALEOECOLOGY
WOS研究方向Physical Geography ; Geology ; Paleontology
语种英语
WOS记录号WOS:000427344400007
出版者ELSEVIER SCIENCE BV
资助机构National Natural Science Foundation of China(41372121) ; National Natural Science Foundation of China(41372121) ; National Natural Science Foundation of China(41372121) ; National Natural Science Foundation of China(41372121) ; National Science and Technology Major Project(2016ZX05004006) ; National Science and Technology Major Project(2016ZX05004006) ; National Science and Technology Major Project(2016ZX05004006) ; National Science and Technology Major Project(2016ZX05004006) ; National Natural Science Foundation of China(41372121) ; National Natural Science Foundation of China(41372121) ; National Natural Science Foundation of China(41372121) ; National Natural Science Foundation of China(41372121) ; National Science and Technology Major Project(2016ZX05004006) ; National Science and Technology Major Project(2016ZX05004006) ; National Science and Technology Major Project(2016ZX05004006) ; National Science and Technology Major Project(2016ZX05004006) ; National Natural Science Foundation of China(41372121) ; National Natural Science Foundation of China(41372121) ; National Natural Science Foundation of China(41372121) ; National Natural Science Foundation of China(41372121) ; National Science and Technology Major Project(2016ZX05004006) ; National Science and Technology Major Project(2016ZX05004006) ; National Science and Technology Major Project(2016ZX05004006) ; National Science and Technology Major Project(2016ZX05004006) ; National Natural Science Foundation of China(41372121) ; National Natural Science Foundation of China(41372121) ; National Natural Science Foundation of China(41372121) ; National Natural Science Foundation of China(41372121) ; National Science and Technology Major Project(2016ZX05004006) ; National Science and Technology Major Project(2016ZX05004006) ; National Science and Technology Major Project(2016ZX05004006) ; National Science and Technology Major Project(2016ZX05004006)
源URL[http://ir.iggcas.ac.cn/handle/132A11/83088]  
专题中国科学院地质与地球物理研究所
通讯作者Wu, Yasheng
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
3.Changqing Oilfield, Res Inst Petr Explorat & Dev, Xian 710021, Shaanxi, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Hainan Trop Ocean Univ, Sanya 572022, Peoples R China
6.Hebei GEO Univ, Shijiazhuang 050031, Hebei, Peoples R China
7.Northwest Univ Xian, Dept Geol, Xian 710127, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Zheng, Lijing,Bao, Hongping,Wu, Yasheng,et al. Distinguishing coral reef facies from coral-bearing open platform facies: Examples from Ordovician Ordos Basin, Northwest China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2018,495:72-86.
APA Zheng, Lijing.,Bao, Hongping.,Wu, Yasheng.,Sun, Liuyi.,Jiang, Hongxia.,...&Liu, Lijing.(2018).Distinguishing coral reef facies from coral-bearing open platform facies: Examples from Ordovician Ordos Basin, Northwest China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,495,72-86.
MLA Zheng, Lijing,et al."Distinguishing coral reef facies from coral-bearing open platform facies: Examples from Ordovician Ordos Basin, Northwest China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 495(2018):72-86.

入库方式： OAI收割

来源：地质与地球物理研究所

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