新的SIMSU–Pb锆石年龄及其对南沱冰期起始时间的限定(英文)

被引：38

作者：

刘鹏举 ^{[1
,2
]}

李献华 ^{[3
]}

陈寿铭 ^{[1
,2
]}

兰中伍 ^{[3
]}

杨犇 ^{[1
,2
]}

尚晓东 ^{[1
,2
]}

尹崇玉 ^{[1
,2
]}

机构：

[1] Institute of Geology, Chinese Academy of Geological Sciences

[2] State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences

[3] Key Laboratory of the Stratigraphy and Palaeontology, Ministry of Land and Resources

来源：

Science Bulletin | 2015年 / 60卷 / 10期

基金：

中国国家自然科学基金;

关键词：

South China; Neoproterozoic; Datangpo Formation; SIMS U–Pb zircon dating; Nantuo glaciation;

D O I：

暂无

中图分类号：

P597.3 []; P535 [区域地层学];

学科分类号：

070902 ; 070903 ;

摘要：

大塘坡组是位于古城冰期和南沱冰期之间的间冰期沉积,本文应用高精度的SIMS U–Pb锆石定年方法,从湖北长阳大塘坡组中部凝灰岩夹层中获得锆石U–Pb年龄为654.2±2.7 Ma,该年龄与从湖南吉首毛坪洞剖面大塘坡组顶部凝灰岩中获得的锆石U–Pb年龄654.5±3.8 Ma在误差范围内完全一致,表明该期火山活动可能在华南地区分布广泛.而相同的火山灰年龄,在湖南吉首从大塘坡组顶部获得,而湖北长阳是从大塘坡组中部获得,反映大塘坡组沉积之后所发生的侵蚀作用在台地的不同地区具有显著差异,反映了华南新元古代晚期的裂谷作用一直持续到南沱冰期.此外,当前在大塘坡组中部所获得的这一年龄值,也进一步肯定了南沱冰期的起始时间应远小于654 Ma年龄.

引用

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页码：958 / 963 +984

页数：7

共 11 条

[1] Qinghu zircon: A working reference for microbeam analysis of U-Pb age and Hf and O isotopes
Li XianHua
Tang GuoQiang
Gong Bing
Yang YueHeng
Hou KeJun
Hu ZhaoChu
Li QiuLi
Liu Yu
Li WuXian
[J]. CHINESE SCIENCE BULLETIN, 2013, 58 (36): : 4647 - 4654
[2] 中国南华系的范畴、时限及地层划分
尹崇玉
高林志
[J]. 地层学杂志, 2013, 37 (04) : 534 - 541
[3] 湖北古城锰矿Fe同位素特征及其古环境意义
张飞飞
彭乾云
朱祥坤
闫斌
李津
程龙
斯小华
[J]. 地质学报, 2013, 87 (09) : 1411 - 1418
[4] New material of microfossils from the Ediacaran Doushantuo Formation in the Zhangcunping area, Yichang, Hubei Province and its zircon SHRIMP U-Pb age
Liu PengJu
Yin ChongYu
Gao LinZhi
Tang Feng
Chen ShouMing
[J]. CHINESE SCIENCE BULLETIN, 2009, 54 (06): : 1058 - 1064
[5] New SHRIMP U-Pb age from the Wuqiangxi Formation of Banxi Group:Implications for rifting and stratigraphic erosion associated with the early Cryogenian (Sturtian) glaciation in South China[J]. ZHANG ShiHong1, JIANG GanQing2, DONG Jin1, HAN YiGui1 & WU HuaiChun1 1 State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing 100083, China;2 Department of Geoscience, University of Nevada, Las Vegas, Nevada 89154-4010, USA.Science in China(Series D:Ear
[6] 贵州松桃南华系大塘坡组凝灰岩锆石SHRIMPⅡ U-Pb年龄
尹崇玉
王砚耕
唐烽
万渝生
王自强
高林志
邢裕盛
刘鹏举
[J]. 地质学报, 2006, (02) : 273 - 278
[7] A rapid and synchronous initiation of the wide spread Cryogenian glaciations[J] . Zhongwu Lan,Xianhua Li,Maoyan Zhu,Zhongqiang Chen,Qirui Zhang,Qiuli Li,Dingbiao Lu,Yu Liu,Guoqiang Tang.Precambrian Research . 2014
[8] Correlation of Sturtian diamictite successions in southern Australia and northwestern Tasmania by Re–Os black shale geochronology and the ambiguity of “Sturtian”-type diamictite–cap carbonate pairs as chronostratigraphic marker horizons[J] . Brian Kendall,Robert A. Creaser,Clive R. Calver,Timothy D. Raub,David A.D. Evans.Precambrian Research . 2009 (3)
[9] The age of the Nantuo Formation and Nantuo glaciation in South China
Zhang, Shihong
Jiang, Ganqing
Han, Yigui
[J]. TERRA NOVA, 2008, 20 (04) : 289 - 294
[10] The Neoproterozoic Quruqtagh Group in eastern Chinese Tianshan: evidence for a post-Marinoan glaciation[J] . Shuhai Xiao,Huiming Bao,Haifeng Wang,Alan J. Kaufman,Chuanming Zhou,Guoxiang Li,Xunlai Yuan,Hongfei Ling.Precambrian Research . 2003 (1)

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