干旱区生态环境知识资源中心(Arid): Cordilleran Subduction Initiation: Retroarc Timing and Basinal Response in the Inyo Mountains, Eastern California

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DOI	10.2113/2020/9406113
	Cordilleran Subduction Initiation: Retroarc Timing and Basinal Response in the Inyo Mountains, Eastern California
	Lodes, Emma; Riggs, Nancy R.; Smith, Michael E.; Stone, Paul
通讯作者	Lodes, E (corresponding author), No Arizona Univ, Sch Earth & Sustainabil, Div Geosci, POB 4099, Flagstaff, AZ 86011 USA.
来源期刊	LITHOSPHERE
ISSN	1941-8264
EISSN	1947-4253
出版年	2020
卷号	2020 期号:1
英文摘要	Subduction zones drive plate tectonics on Earth, yet subduction initiation and the related upper plate depositional and structural kinematics remain poorly understood because upper plate records are rare and often strongly overprinted by magmatism and deformation. During the late Paleozoic time, Laurentia's western margin was truncated by a sinistral strike-slip fault that transformed into a subduction zone. Thick Permian strata in the Inyo Mountains of central-eastern California record this transition. Two basins that were separated by a transpressional antiform contain sedimentary lithofacies that record distinct patterns of shoaling and deepening conditions before and during tectonism associated with subduction initiation. Sandstone petrography and lithofacies analysis show that rocks in a southeastern basin are dominated by carbonate grains derived from adjacent carbonate shelves, whereas sandstones in a northwestern basin are predominantly quartzose with likely derivation from distant ergs or underlying strata. Detrital zircon spectra from all but the youngest strata in both basins are typical of Laurentian continent spectra with prominent peaks that indicate ultimate sources in Appalachia, Grenville, Yavapai/Mazatzal, and the Wyoming or Superior cratons. The first Cordilleran arc-derived detrital zircon grains appear in the uppermost strata of the northwestern basin and record Late Permian (ca. 260 Ma) Cordilleran arc magmatism at this approximate latitude, and a possible source area is suggested by geochemical similarities between these detrital zircons and broadly coeval magmatic zircons in the El Paso Mountains to the southwest. Deformation responsible for basin partitioning is consistent with sinistrally oblique contraction in the earliest Permian time. The data presented from the Inyo Mountains shed more light on the nature of Cordilleran subduction initiation and the upper-crustal response to this transition.
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000617908500042
WOS关键词	SNOW LAKE FAULT ; CONTINENTAL-MARGIN ; DETRITAL ZIRCON ; SOUTHERN CALIFORNIA ; TRIASSIC STRATA ; PUYSEGUR MARGIN ; TRACE-ELEMENT ; UNITED-STATES ; MOJAVE DESERT ; NW SONORA
WOS类目	Geochemistry & Geophysics ; Geology
WOS研究方向	Geochemistry & Geophysics ; Geology
来源机构	United States Geological Survey
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349071
作者单位	[Lodes, Emma; Riggs, Nancy R.; Smith, Michael E.] No Arizona Univ, Sch Earth & Sustainabil, Div Geosci, POB 4099, Flagstaff, AZ 86011 USA; [Stone, Paul] US Geol Survey, 345 Middlefield Rd,MS 973, Menlo Pk, CA 94025 USA
推荐引用方式 GB/T 7714	Lodes, Emma,Riggs, Nancy R.,Smith, Michael E.,et al. Cordilleran Subduction Initiation: Retroarc Timing and Basinal Response in the Inyo Mountains, Eastern California[J]. United States Geological Survey,2020,2020(1).
APA	Lodes, Emma,Riggs, Nancy R.,Smith, Michael E.,&Stone, Paul.(2020).Cordilleran Subduction Initiation: Retroarc Timing and Basinal Response in the Inyo Mountains, Eastern California.LITHOSPHERE,2020(1).
MLA	Lodes, Emma,et al."Cordilleran Subduction Initiation: Retroarc Timing and Basinal Response in the Inyo Mountains, Eastern California".LITHOSPHERE 2020.1(2020).