干旱区生态环境知识资源中心(Arid): Nature and origin of mineral coatings on volcanic rocks of the Black Mountain, Stonewall Mountain and Kane Springs wash volcanic centers, southern Nevada

Arid

报告编号	NASA-CR-181209, NAS 1.26:181209
来源ID	NTRS_Document_ID: 19870017040
	Nature and origin of mineral coatings on volcanic rocks of the Black Mountain, Stonewall Mountain and Kane Springs wash volcanic centers, southern Nevada
	Taranik, James V.; Noble, Donald C.; Hsu, Liang C.; Spatz, David M.
英文摘要	Mineral coatings, including desert varnish on volcanic rocks of the semi-arid Basin and Range province are composted of amorphous, translucent films of Fe, Mn, Si, and Al rich compounds. Coatings are chiefly thin films that impregnate intergranularly to depths of about 0.1 to 0.3 mm, rarely deeper. Sixteen coating sections and subsurface interiors were probed by SEM; 20 samples were scanned by infrated spectrometry; 10 samples were scanned for visible-near IR spectra; inductin coupling plasma analyses were collected on 34 samples; 2 desert varnish surgaces were investigated by optical density slice imagery; a few XRD analyses were conducted in addition to the 50 reported in the last period; thin section observation continued; and imagery processing focused on classification techniques. In late May, approximately 10 field days were spent at the Stonewall and Black Mountain study sited conducting more detailed mapping and observation base on imagery results and collecting spectra with the Collins Field Spectrometer. Approximately 100 spectral analyses were collected and are currently being processed.
英文关键词	CHEMICAL COMPOSITION COATINGS GEOCHEMISTRY MINERALOGY MOUNTAINS VOLCANOES ELECTRON MICROSCOPY INFRARED SPECTRA NEVADA SATELLITE IMAGERY THEMATIC MAPPING
出版年	1987
报告类型	Technical Report
语种	英语
国家	美国
URL	http://hdl.handle.net/2060/19870017040
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/259092
推荐引用方式 GB/T 7714	Taranik, James V.,Noble, Donald C.,Hsu, Liang C.,et al. Nature and origin of mineral coatings on volcanic rocks of the Black Mountain, Stonewall Mountain and Kane Springs wash volcanic centers, southern Nevada,1987.