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地质科学  2006, Vol. Issue (3): 500-510    DOI:
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东昆仑南带中元古代晚期—新元古代早期叠层石组合的发现
边千韬1, 朱士兴2, I. I. Pospelov3, M. A. Semikhatov3, 孙淑芬2, 陈代钊1, 那春光1
1. 中国科学院地质与地球物理研究所, 北京, 100029;
2. 中国地质调查局天津地质矿产研究所, 天津, 300170;
3. Geological Institute, Russian Academy of Sciences, Moscow 109017, Russia
DISCOVERY OF LATE MESOPROTEROZOIC—EARLY NEOPROTEROZOIC STROMATOLITE ASSEMBLAGE IN THE SOUTHERN BELT OF EASTERN KUNLUN
Bian Qiantao1, Zhu Shixing2, I. I. Pospelov3, M. A. Semikhatov3, Sun Shufen2, Chen Daizhao1, Na Chunguang1
1. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029;
2. Tianjin Institute of Geology and Mineral Resources, China Geological Survey, Tianjin 300170;
3. Geological Institute, Russian Academy of Sciences, Moscow 109017, Russia
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摘要 东昆仑南带加嗡门地区碳酸盐岩地层中发现的中元古代晚期-新元古代早期叠层石组合以大型锥叠层石及其相关的分子Conophyton garganicus var. inkeni,C. cf. ressoti Menchikov, Jacutophyton f. 和Conicodomenia cf. longotenuia等最丰富, 并与Baicalia共生, 故可视之为Conophyton-Baicalia组合.这叠层石组合可以与天山、华北等地蓟县系中部-青白口系中部叠层石组合对比,尤其酷似于天山地区蓟县系的爱尔基干组合和华北蓟县系的闪坡岭叠层石组合,而显著有别于华南地块.它还可以与南乌拉尔、西伯利亚、北美、北非和阿拉斯加半岛等地区的中里菲界上部--上里菲界下部层位中的叠层石组合对比.加嗡门叠层石组合的时限为距今1 300~850 Ma,大致为蓟县纪中期-青白口纪中期或中里菲晚期-晚里菲早期.东昆仑南带存在前寒武纪微地块,当时此微地块的古地理和古环境与天山、华北、西伯利亚和阿拉斯加半岛等地区的前寒武纪地块相似,均位于低纬度区,其上均广泛发育适宜叠层石繁育的温暖陆表海,它们可能共同处于罗迪尼亚超大陆的低纬度大陆边缘部位,与华南地块的不同.这对本区和东昆仑地层和大地构造研究,以及对罗迪尼亚超大陆重建提供了新的古生物约束.
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边千韬
朱士兴
I. I. Pospelov
M. A. Semikhatov
孙淑芬
陈代钊
那春光
关键词叠层石   中元古代晚期—新元古代早期   罗迪尼亚超大陆   东昆仑     
Abstract: This paper reported, for the first time, a newly discovered Late Mesoproterozoic—Early Neoproterozoic stromatolite assemblage, named the “Jiawengmen stromatolite assemblage”, represented by the Conophyton-Baicalia group in Jiawenmen area, the southern belt of the eastern Kunlun. The stromatolite assemblage was dominated by large-scale conical stromatolites and related elements, i.e., Conophyton garganicus var. inkeni, C. cf. ressoti Menchikov, Jacutophyton f. and Conicodomenia f., which commonly co-existed with elements of the group of Baicalia. This assemblage could be correlated with that of the Middle Jixian System—Middle Qingbaikou System in North and Northwest China, but different from that in South China. It could also be correlated with that in the upper horizon of the Middle Riphean—lower horizon of the Upper Riphean in South Ural Mountains and Siberia of Russia, North Africa, and Alaska Peninsula. These facts suggested that the Jiawengmen stromatolite assemblage probably colonized during 1 300~850 Ma ago. Accordingly, the stromatolite-bearing carbonate rocks were then proposed to correspond to the Middle Jixian System—Middle Qingbaikou System or the upper Middle Riphean—lower Upper Riphean. Our stromatolite data further revealed that a Precambrian microblock, named the Maqen Microblock, likely occurred in the southern belt of the eastern Kunlun. Similar stromatolite assemblages in the Maqen microblok and those blocks that occurred in the North China, Siberia and North Africa pointed to a similar palaeogeographic and palaeoenvironmental condition. These microblok and blocks were likely located at low-latitudes and on the continental margin of the Rodinian supercontinent, where warm epicontinental seas were favorable to widespread colonization of stromatolites during the Late Mesopro—terozoic—Early Neoproterozoic. However, the stromatolite assemblage was quite different from those of South China Block, suggesting different palaeogeographic contexts, probably of different tectonic affinity as well.
Key wordsStromatolite   Late Mesoproterozoic—Early Neoproterozoic   The Rodinia supercontinent   Eastern Kunlun   
收稿日期: 2005-06-01;
基金资助:中国科学院知识创新工程重要方向项目(编号:KZCX3-SW-143;KZCX2-SW-119);国家自然科学基金重点项目(批准号:40334044);国家973计划项目(编号:2002CB412602);国家自然科学基金(批准号:49872077);中国科学院卢嘉锡基金资助项目的成果。
引用本文:   
边千韬,朱士兴,I. I. Pospelov等. 2006, 东昆仑南带中元古代晚期—新元古代早期叠层石组合的发现. 地质科学, (3): 500-510.
Bian Qiantao,Zhu Shixing,I. I. Pospelov et al. DISCOVERY OF LATE MESOPROTEROZOIC—EARLY NEOPROTEROZOIC STROMATOLITE ASSEMBLAGE IN THE SOUTHERN BELT OF EASTERN KUNLUN[J]. Chinese Journal of Geology, 2006, (3): 500-510.
 
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[1] 孔会磊 李金超 贾群子 国显正 栗亚芝. 青海东昆仑拉浪麦钨多金属矿区英云闪长岩锆石U-Pb测年、岩石地球化学及找矿意义[J]. 地质科学, 2019, 54(2): 590-607.
[2] 时超, 李荣社, 何世平, 于浦生, 王超, 潘术娟, 张海迪. 东昆仑东段杏树沟金矿化带内石英钠长斑岩LA-ICP-MS锆石U-Pb年龄及围岩地球化学特征[J]. 地质科学, 2013, 48(4): 984-996.
[3] 温志峰, 钟建华, 刘云田, 柳祖汉, 吴孔友, 王冠民, 李勇. 柴达木盆地中新世叠层石沉积特征及其环境和构造意义[J]. 地质科学, 2005, (4): 547-557.
[4] 郝杰, 翟明国. 罗迪尼亚超大陆与晋宁运动和震旦系[J]. 地质科学, 2004, (1): 139-152.
[5] 李曰, 俊郝杰. 东昆仑铁石达斯群中发现放射虫动物群[J]. 地质科学, 1998, (2): 254-254.
[6] 陈辉能, 朱士兴, 罗其玲. 荆襄磷矿优质磷块岩的形成与藻类的关系[J]. 地质科学, 1996, (2): 176-185.
[7] 李容全, 袁宝印. 泥河湾地区更新世叠层石的发现[J]. 地质科学, 1992, (1): 97-99.
 
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