气候变化领域集成服务门户(CCPortal): Competing sediment sources during Paleozoic closure of the Marathon-Ouachita remnant ocean basin

CCPortal

DOI	10.1130/B35201.1
	Competing sediment sources during Paleozoic closure of the Marathon-Ouachita remnant ocean basin
	Gao Z.; Perez N.D.; Miller B.; Pope M.C.
发表日期	2020
ISSN	167606
起始页码	3
结束页码	16
卷号	132 期号:2021-01-02
英文摘要	The Paleozoic construction of Pangea advanced southwestward from the Appalachian system to the Marathon fold-and-thrust belt in west Texas and progressively closed a remnant ocean basin between Laurentia and Gondwana. The resulting collisional orogen was a potential driver of Ancestral Rocky Mountain tectonism and impacted continental-scale sediment routing. New detrital zircon U-Pb geochronologic and heavy mineral provenance data from Ordovician- Pennsylvanian strata in the Marathon foldand-thrust belt, and Permian strata in the Guadalupe Mountains of west Texas record changes in sediment provenance during the tectonic development of southwestern Laurentia and the Delaware Basin. In the Marathon fold-and-thrust belt, Ordovician rocks (Woods Hollow and Marathon Formations) record peri-Gondwanan sediment sources prior to continent collision. Syncollisional Mississippian and Pennsylvanian rocks (Tesnus, Haymond, Gaptank Formations) record contributions from distal Appalachian sources, recycled material from the active continental suture, and volcanic arc material from Gondwana. Near the Guadalupe Mountains, postcollisional Permian strata (Delaware Mountain Group) from the northern Delaware Basin margin suggest a dominantly southern catchment that was sourced from the deforming suture and Gondwanan arc. The results demonstrate that both plates and the active suture zone were sources for the siliciclastic wedge, but their proportions differed through time. These results also suggest that the delay between initial late Mississippian suturing in the Marathon region and increased mid-Permian siliciclastic deposition into the northern Delaware Basin may have been linked to a southward catchment expansion that integrated the collisional belt and southern volcanic arc into a broadly north-directed sediment dispersal system. © 2019 Geological Society of America.
语种	英语
来源期刊	Bulletin of the Geological Society of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/184875
作者单位	Department of Geology and Geophysics, College of Geosciences, Texas A and M University, College Station, TX 77843, United States; Royal Dutch Shell, 150 N Dairy Ashford Road, Houston, TX 77079, United States
推荐引用方式 GB/T 7714	Gao Z.,Perez N.D.,Miller B.,et al. Competing sediment sources during Paleozoic closure of the Marathon-Ouachita remnant ocean basin[J],2020,132(2021-01-02).
APA	Gao Z.,Perez N.D.,Miller B.,&Pope M.C..(2020).Competing sediment sources during Paleozoic closure of the Marathon-Ouachita remnant ocean basin.Bulletin of the Geological Society of America,132(2021-01-02).
MLA	Gao Z.,et al."Competing sediment sources during Paleozoic closure of the Marathon-Ouachita remnant ocean basin".Bulletin of the Geological Society of America 132.2021-01-02(2020).