干旱区生态环境知识资源中心(Arid): Sedimentary and geochronology study on the Late Carboniferous-Late Permian strata from Ejin Banner area and its tectonic setting

Arid

DOI	10.18654/1000-0569/2020.04.17
	Sedimentary and geochronology study on the Late Carboniferous-Late Permian strata from Ejin Banner area and its tectonic setting
	Du YiBin; Zhang YanJie; Xu Bei; Yang ZhenNing; Wang ZhiWei; Wang ZhiHui
通讯作者	Xu, B
来源期刊	ACTA PETROLOGICA SINICA
ISSN	1000-0569
EISSN	2095-8927
出版年	2020
卷号	36 期号:4 页码:1253-1273
英文摘要	Sedimentology and geochronology study for the Late Carboniferous-Late Permian strata in Ejin Banner area has been carried out. The clastic rocks in the lower part of the Ganquan Formation in the Hongshishan-Ejin Banner sag belt can be divided into three sedimentary facies types: coastal, pre-delta and delta front facies, indicating that this sag belt belongs to a coastal sedimentary environment dominated by rapid supply of delta. The geochronology of detrital zircons shows that the Ganquan Formation was formed between 322Ma and 305 Ma. With an age range of 322 similar to 801Ma of the detrital zircons, the age peaks of 428 similar to 520Ma and 336 similar to 373Ma represent two records of magmatic activities of the Early Paleozoic subduction of the Paleo-Asian Ocean and the Early Carboniferous extension in the Hongshishan-Ejin Banner sag belt, respectively. The Permian in Badaoqiao area of the Mazongshan-Qiedao uplift belt is composed of thick purplish conglomerate and sandstone. The sedimentary and sequence characteristics indicate that these clastic rocks formed in a rapid deposition during arid climate conditions, belonging to the continental flood alluvial environment. Detrital U-Pb zircon dating limited the depositional age of the Badaoqiao Formation between 280 Ma and 268 Ma. The Early Paleozoic (412 similar to 515Ma) and Precambrian ( 950Ma and 1700Ma) detrital zircons from this formation were derived from ancient basement. The Maihanhada Formation is divided into three sedimentary facies from bottom to top: flood alluvial, coastal lagoon and coastal facies. The youngest ages of detrital zircons are 279 similar to 270Ma in the Maihanhada Formation including three consecutive peak ages of 280 Ma, 287Ma and 294Ma, indicating that there was frequent magmatic activities in the Early Permian. The Late Permian Haersuhai Formation was formed in a coastal environment and analysis of the detrital zircons in it exhibits ages of 273 similar to 329Ma, which records the Late Carboniferous to Permian magmatism. Other ages of 383Ma, 468 similar to 517Ma, 800 similar to 913Ma and 1485Ma represent complex sources from the Early Paleozoic orogenic belt to ancient continent basement. These characteristics suggest the change of their paleogeographic environments from continental to coastal facies in the Mazongshan-Qiedao uplift belt during the Late Carboniferous to Late Permian. Comparative analysis reveals that the Late Carboniferous to Late Permian paleogeographic frame is characterized by uplift and sag belts from Xinjiang, Gansu to Inner Mongolia, which controlled their sedimentary facies distribution and resulted in different sedimentary environments.
英文关键词	Sedimentary paleogeography Geochronology The Late Carboniferous -Late Permian Ejin Banner area
类型	Article
语种	中文
收录类别	SCI-E
WOS记录号	WOS:000534690600017
WOS关键词	SINO-MONGOLIAN BORDER ; VOLCANIC-ROCKS ; BEISHAN REGION ; NW CHINA ; PETROGENESIS ; TIANSHAN ; OPHIOLITE ; PROVINCE ; BELT
WOS类目	Geology
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324519
作者单位	[Du YiBin; Zhang YanJie; Xu Bei; Yang ZhenNing; Wang ZhiWei; Wang ZhiHui] Hebei GEO Univ, Key Lab Reg Geol & Mineralizat, Shijiazhuang 050031, Hebei, Peoples R China; [Du YiBin; Zhang YanJie; Xu Bei; Yang ZhenNing; Wang ZhiWei; Wang ZhiHui] Hebei GEO Univ, Coll Resources, Shijiazhuang 050031, Hebei, Peoples R China
推荐引用方式 GB/T 7714	Du YiBin,Zhang YanJie,Xu Bei,et al. Sedimentary and geochronology study on the Late Carboniferous-Late Permian strata from Ejin Banner area and its tectonic setting[J],2020,36(4):1253-1273.
APA	Du YiBin,Zhang YanJie,Xu Bei,Yang ZhenNing,Wang ZhiWei,&Wang ZhiHui.(2020).Sedimentary and geochronology study on the Late Carboniferous-Late Permian strata from Ejin Banner area and its tectonic setting.ACTA PETROLOGICA SINICA,36(4),1253-1273.
MLA	Du YiBin,et al."Sedimentary and geochronology study on the Late Carboniferous-Late Permian strata from Ejin Banner area and its tectonic setting".ACTA PETROLOGICA SINICA 36.4(2020):1253-1273.