CCPortal
DOI10.1007/s11430-020-9689-3
New insights on the age of the Mengyejing Formation in the Simao Basin, SE Tethyan domain and its geological implications
Yan, Maodu; Zhang, Dawen; Fang, Xiaomin; Zhang, Weilin; Song, Chunhui; Liu, Chenglin; Zan, Jinbo; Shen, Miaomiao
通讯作者Yan, MD (通讯作者)
发表日期2021
ISSN1674-7313
EISSN1869-1897
起始页码231
结束页码252
卷号64期号:2
英文摘要Knowledge on the origin and mechanism of the large potash formation in the southeast Tethyan tectonic domain are still under debate, one of which mainly due to the controversial ages of the potash-bearing strata. Here we present a detailed detrital zircon U-Pb geochronologic-magnetostratigraphic study of the potash-bearing Mengyejing (MYJ) Formation (Fm) from the Simao Basin. 948 paleomagnetic cores and 4 detrital zircon U-Pb samples were collected from a 932-m thick Jiangcheng section. Thermal demagnetization isolated 857 primary characteristic remnant magnetization (ChRM) directions, indicated by positive reversals and fold tests and petrologic examinations. Seven normal and seven reversed polarity zones were identified and correlated well with chrons C27r to C34n of the geomagnetic polarity timescale (GPTS2012), yielding the first known age sequence of >112 to similar to 63 Ma for the MYJ Fm. The ages for the potash bearing strata in the Simao commenced similar to 20 Ma earlier than those in the adjacent Khorat basins, opposite to the traditional viewpoint that the former would rather correspond to the middle and lower parts of the latter. Given the paleogeographic reconstruction of likely a pan-Simao-Khorat basin during the Cretaceous, similar to 85 Ma would be another important potential period for future potash exploration in the Simao Basin.
关键词U-PB GEOCHRONOLOGYDETRITAL ZIRCON PROVENANCENORTHERN SICHUAN BASINSAKHON NAKHON BASINTIBETAN PLATEAUKHORAT PLATEAUCRETACEOUS CLIMATETECTONIC EVOLUTIONCHINA IMPLICATIONSJURASSIC DEPOSITS
英文关键词Simao Basin; Magnetostratigraphy; Potash-bearing sequence; Mengyejing Fm; > 112-similar to 63 Ma; Potash formation
语种英语
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000608667900003
来源期刊SCIENCE CHINA-EARTH SCIENCES
来源机构中国科学院青藏高原研究所
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/260403
推荐引用方式
GB/T 7714
Yan, Maodu,Zhang, Dawen,Fang, Xiaomin,et al. New insights on the age of the Mengyejing Formation in the Simao Basin, SE Tethyan domain and its geological implications[J]. 中国科学院青藏高原研究所,2021,64(2).
APA Yan, Maodu.,Zhang, Dawen.,Fang, Xiaomin.,Zhang, Weilin.,Song, Chunhui.,...&Shen, Miaomiao.(2021).New insights on the age of the Mengyejing Formation in the Simao Basin, SE Tethyan domain and its geological implications.SCIENCE CHINA-EARTH SCIENCES,64(2).
MLA Yan, Maodu,et al."New insights on the age of the Mengyejing Formation in the Simao Basin, SE Tethyan domain and its geological implications".SCIENCE CHINA-EARTH SCIENCES 64.2(2021).
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Yan, Maodu]的文章
[Zhang, Dawen]的文章
[Fang, Xiaomin]的文章
百度学术
百度学术中相似的文章
[Yan, Maodu]的文章
[Zhang, Dawen]的文章
[Fang, Xiaomin]的文章
必应学术
必应学术中相似的文章
[Yan, Maodu]的文章
[Zhang, Dawen]的文章
[Fang, Xiaomin]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。