globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2016.06.018
论文题名:
Early recovery of sponge framework reefs after Cambrian archaeocyath extinction: Zhangxia Formation (early Cambrian Series 3), Shandong, North China
作者: Lee J.-H.; Hong J.; Choh S.-J.; Lee D.-J.; Woo J.; Riding R.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2016
卷: 457
起始页码: 269
结束页码: 276
语种: 英语
英文关键词: Cambrian ; Metazoan-microbial reef ; Rankenella ; Reef framework ; Sponge
英文摘要: Reefs dominated by the anthaspidellid sponge Rankenella zhangxianensis, the calcimicrobe Epiphyton and the stem-group cnidarian Cambroctoconus orientalis, together with encrusting microstromatolites occur early in the middle Cambrian (Series 3, late Stage 5) of Shandong, eastern China. In the Zhangxia Formation, these in situ components created a tight framework, with centimeter-scale growth cavities mainly filled by fine-grained matrix. Among them, R. zhangxianensis and C. orientalis mutually attached and locally formed metazoan-dominated frameworks. These metazoan-microbial reefs form thin lenses < 2 m wide within microbial mounds, and probably developed at least a few centimeters of synoptic relief above these surrounding structures. With an age of > 505 Ma, these Rankenella reefs indicate recovery of framework-building metazoans within ˜ 5 million years of the archaeocyath reef decline. In structure, they resemble archaeocyath reefs as well as Early Ordovician lithistid sponge-microbial reefs, having conjoined conical macroskeletons thickly veneered by calcimicrobes and microbial carbonate with largely matrix-filled intervening cavities. In combination with other sponge-microbial reefs reported from Australia, Iran, Korea and the USA, they demonstrate that an anthaspidellid sponge-microbial reef consortium was widespread throughout the mid-late Cambrian. © 2016 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68359
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作者单位: Department of Geology and Earth Environmental Sciences, Chungnam National University, Daejeon, South Korea; Department of Earth and Environmental Sciences, Korea University, Seoul, South Korea; Department of Earth and Environmental Sciences, Andong National University, Andong, South Korea; College of Earth Science, Jilin University, Changchun, China; Division of Polar Earth-System Sciences, Korea Polar Research Institute, Incheon, South Korea; Department of Earth and Planetary Sciences, University of Tennessee, Knoxville, United States

Recommended Citation:
Lee J.-H.,Hong J.,Choh S.-J.,et al. Early recovery of sponge framework reefs after Cambrian archaeocyath extinction: Zhangxia Formation (early Cambrian Series 3), Shandong, North China[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2016-01-01,457
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