干旱区生态环境知识资源中心(Arid): Landsat-8 data for chromite prospecting in the Logar Massif, Afghanistan

Arid

DOI	10.1016/j.heliyon.2018.e00542
	Landsat-8 data for chromite prospecting in the Logar Massif, Afghanistan
	Abdelaziz, Ramadan; Abd El-Rahman, Yasser; Wilhelm, Sophie
通讯作者	Abdelaziz, R
来源期刊	HELIYON
ISSN	2405-8440
出版年	2018
卷号	4 期号:2
英文摘要	Chromite is widely distributed in the east and southeast of Afghanistan, especially in Logar Province. Chromite mineralization is podiform-type and is hosted in the stratigraphically lowest ultramafic rocks of the Logar Ophiolite Complex. This ophiolite complex represents a remnant of an early Cretaceous oceanic crust that was thrusted over a late Permian to Mid-Jurassic platform-type sequence of the Kabul Terrane during the Himalayan Orogeny. The ultramafic rocks are composed mainly of dunite and harzburgite, which are variably serpentinized. Chromite mineralization of the Logar area ranges from massive chromitite pods to disseminated chromite crystals in the ultramafic rocks. Microscopically, the chromite exhibits granular texture and is generally fresh; however, some magnetite and/classification as a tool for mineral exploration improve lithological mapping in the Logar Valley area.or ferritchromite are formed along the fractures of some chromite grains. The primary interstitial silicate minerals of the massive chromite and the silicate minerals surrounding the disseminated chromite grains are completely altered to serpentine along with some chlorite. Thus, serpentinite is most likely the host of the chromite in the Logar Province. The main aim of this study is discriminate serpentine using the Landsat 8 Operational Land Imager (OLI). The serpentinite of the Logar Province is separated by the combination of bands, principal components, band ratios, and supervised classification techniques. Using Landsat 8 and supervised classification with maximum likelihood
英文关键词	Geochemistry Geology Earth sciences
类型	Article
语种	英语
开放获取类型	DOAJ Gold, Green Published
收录类别	ESCI
WOS记录号	WOS:000432032300007
WOS关键词	OPHIOLITE COMPLEX ; EASTERN DESERT ; MINERALIZED ZONES ; OMAN OPHIOLITE ; NE IRAQ ; ASTER ; EGYPT ; AREA ; TM ; CLASSIFICATION
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
Scopus学科分类	TU Bergakad Freiberg, Freiberg, Germany.
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/332774
作者单位	[Abdelaziz, Ramadan] AShargiyah Univ, Coll Engn, Ibra, Oman; [Abd El-Rahman, Yasser] Cairo Univ, Geol Dept, Giza 12613, Egypt; [Abdelaziz, Ramadan; Wilhelm, Sophie] TU Bergakad Freiberg, Freiberg, Germany
推荐引用方式 GB/T 7714	Abdelaziz, Ramadan,Abd El-Rahman, Yasser,Wilhelm, Sophie. Landsat-8 data for chromite prospecting in the Logar Massif, Afghanistan[J],2018,4(2).
APA	Abdelaziz, Ramadan,Abd El-Rahman, Yasser,&Wilhelm, Sophie.(2018).Landsat-8 data for chromite prospecting in the Logar Massif, Afghanistan.HELIYON,4(2).
MLA	Abdelaziz, Ramadan,et al."Landsat-8 data for chromite prospecting in the Logar Massif, Afghanistan".HELIYON 4.2(2018).