干旱区生态环境知识资源中心(Arid): A mineralogical and geochemical investigation of modern aeolian sands near Tonopah, Nevada: Sources and environmental implications

Arid

DOI	10.1016/j.catena.2020.104640
	A mineralogical and geochemical investigation of modern aeolian sands near Tonopah, Nevada: Sources and environmental implications
	Oglesbee, Traister; McLeod, Claire L.; Chappell, Caleb; Vest, Jordan; Sturmer, Dan; Krekeler, Mark P. S.
通讯作者	Krekeler, MPS
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2020
卷号	194
英文摘要	The mineralogical and geochemical composition of sands across arid to semi-arid landscapes can be used to evaluate the nature of their source lithologies. Once these characteristics are established, these sands have the potential to be implemented as background reference materials in environmentally-focused studies (e.g., mine waste pollution). Tonopah, Nevada is an economically disadvantaged town with a long history of silver mining. Tonopah and surrounding areas with similar histories are also examples of significantly understudied regions with respect to several environmental concerns. Sands sampled in this study are part of a star-shaped dune system similar to 15 km north of Tonopah. They are medium-grained and are very well sorted: arithmetic mean grain size from 263 to 335 mu m. From Quartz - Feldspar - Lithic (QFL) classification the sands are feldspathic litharenites to weakly litharenitic. Powder X-ray diffraction and polarized light microscopy observations identify quartz, ordered calcian albite, and sanidine as the dominant minerals with rarer calcite, magnesian calcite, and amphibole. Scanning electron microscopy indicates grains have a range of textural maturity, with rhyolitic and basaltic lithic grains present. From bulk elemental chemistry, sands are geochemically akin to that of Earth's bulk upper continental crust, are quartz-rich, formed in arid to semi-arid climates, and were derived from a felsic igneous province (or provinces). The origin of these sands is further investigated by comparing bulk major elemental signatures to the composition of global, regional, and local dune systems, in addition to local and regional bedrock. Regionally, Tonopah sands are compositionally similar to those of the Mojave Desert dune fields (e.g. Cadiz) and distinct from those of the Algodones and Parker dunes of California and Arizona respectively. Consistent with source inferences for the Cadiz, Danby, and Dale lake sands of the Mojave Desert, Tonopah sands are inferred to be derived from chemically evolved provinces. For Tonopah, derivation from the local, Micoene-aged, andesite-dacite-rhyolite suites is inferred. Through comprehensive characterization of the Tonopah sands a geogenic background composition for the region, and an important reference material for future environmental investigations, has been established.
英文关键词	Sand dune Geochemistry Mineralogy Tonopah, Nevada Geogenic background Environmental reference
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000566699000003
WOS关键词	CARSON RIVER ; GEOMORPHIC PROCESSES ; RECREATIONAL AREA ; METAL POLLUTION ; DUST EMISSIONS ; LEAD-EXPOSURE ; NORTH-AMERICA ; MOJAVE DESERT ; NELLIS DUNES ; SILVER PEAK
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326076
作者单位	[Oglesbee, Traister; McLeod, Claire L.; Chappell, Caleb; Vest, Jordan; Krekeler, Mark P. S.] Miami Univ, Dept Geol & Environm Earth Sci, Shideler Hall, Oxford, OH 45056 USA; [Oglesbee, Traister; Chappell, Caleb; Krekeler, Mark P. S.] Miami Univ Reg, Dept Math & Phys Sci, Hamilton, OH 45011 USA; [Sturmer, Dan] Univ Cincinnati, Dept Geol, Cincinnati, OH 45221 USA
推荐引用方式 GB/T 7714	Oglesbee, Traister,McLeod, Claire L.,Chappell, Caleb,et al. A mineralogical and geochemical investigation of modern aeolian sands near Tonopah, Nevada: Sources and environmental implications[J],2020,194.
APA	Oglesbee, Traister,McLeod, Claire L.,Chappell, Caleb,Vest, Jordan,Sturmer, Dan,&Krekeler, Mark P. S..(2020).A mineralogical and geochemical investigation of modern aeolian sands near Tonopah, Nevada: Sources and environmental implications.CATENA,194.
MLA	Oglesbee, Traister,et al."A mineralogical and geochemical investigation of modern aeolian sands near Tonopah, Nevada: Sources and environmental implications".CATENA 194(2020).