Katian (Late Ordovician) sphinctozoan-bearing reefs: Hybrid carbonates before the glacial maximum
文献类型：期刊论文
| 作者 | Li, Qi-jian1,2 ; Na, Lin1,2; Yu, Shen-yang3; Mao, Ying-yan1,2; Kershaw, Stephen4,5; Li, Yue1,2
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| 刊名 | PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
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| 出版日期 | 2023-08-15 |
| 卷号 | 624页码:9 |
| ISSN号 | 0031-0182 |
| 关键词 | Synsedimentary cementation South China Microbialite Amsassia Corymbospongia |
| DOI | 10.1016/j.palaeo.2023.111642 |
| 通讯作者 | Li, Qi-jian(qjli@nigpas.ac.cn) |
| 英文摘要 | With a significant rise of metazoan reef-builders in shallow marine environments, the Late Ordovician saw a substantial increase in precipitation of crystalline crusts in reef systems, which may reflect a dramatic environmental change in the ocean. Isopachous crystalline crusts occur abundantly in boundstone of Katian sphinctozoan-bearing microbial reefs on the Zhe-Gan Platform, South China. These deposits are characterized by in-place carbonate textures that are interpreted as associations of abiotic, bioinduced and biocontrolled fabrics, considered here to be hybrid carbonates. Little previous work has been done to investigate how these hybrid carbonates are related to the transition in biotic composition during the Ordovician. These fabrics occur in wellpreserved sphinctozoan-bearing reefs in the lower member of the Sanqushan Formation at the Jitoushan Section in Yushan County, Jiangxi Province. The meter-scale reefs are dominated by Corymbospongia, Amsassia and microbial components, and are cemented by fibrous sparry crusts. The intertwined Corymbospongia and Amsassia build the primary skeletal framework. Microbes and subsequent cementation enhance the stability of the framework by covering most of the macrofossil skeletons. The studied skeletal-microbial-cement reefs share a lot of similarities with contemporaneous reefs of North China and Central Nepal, but differ from Early Ordovician reefs, which lack sparry crusts. Our results provide evidence for extensive synsedimentary cementation on the seafloor, which could have played a crucial role in the consolidation of Late Ordovician reefs during the icehouse conditions before the Hirnantian glacial maximum. |
| WOS关键词 | EARLY DIAGENESIS ; SPONGES ; CORALOMORPH ; FEEDBACK ; HISTORY ; RECORD ; MIDDLE ; SHIFT ; TEXAS |
| 资助项目 | National Natural Science Foundation of China[41702003] ; Youth Innovation Promotion Association of CAS[2019310] ; Chinese Academy of Sciences[XDB26000000] |
| WOS研究方向 | Physical Geography ; Geology ; Paleontology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:001061358600001 |
| 资助机构 | National Natural Science Foundation of China ; Youth Innovation Promotion Association of CAS ; Chinese Academy of Sciences |
| 源URL | [http://ir.nigpas.ac.cn/handle/332004/42337]  |
| 专题 | 中国科学院南京地质古生物研究所 |
| 通讯作者 | Li, Qi-jian |
| 作者单位 | 1.Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, East Beijing Rd 39, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, 39 East Beijing Rd, Nanjing 210008, Peoples R China 3.Qufu Normal Univ, Sch Geog & Tourism, Rizhao 276829, Peoples R China 4.Brunel Univ, Dept Life Sci, Kingston Lane, Uxbridge UB8 3PH, England 5.Nat Hist Museum, Earth Sci Dept, Cromwell Rd, London SW7 5BD, England |
| 推荐引用方式 GB/T 7714 | Li, Qi-jian,Na, Lin,Yu, Shen-yang,et al. Katian (Late Ordovician) sphinctozoan-bearing reefs: Hybrid carbonates before the glacial maximum[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2023,624:9. |
| APA | Li, Qi-jian,Na, Lin,Yu, Shen-yang,Mao, Ying-yan,Kershaw, Stephen,&Li, Yue.(2023).Katian (Late Ordovician) sphinctozoan-bearing reefs: Hybrid carbonates before the glacial maximum.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,624,9. |
| MLA | Li, Qi-jian,et al."Katian (Late Ordovician) sphinctozoan-bearing reefs: Hybrid carbonates before the glacial maximum".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 624(2023):9. |
入库方式： OAI收割
来源：南京地质古生物研究所
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