Geology and mineralogy of the Buena Vista iron ores, Churchill County, Nevada

Autor:	Arthur S. Radtke
Rok vydání:	1964
Předmět:	Mineralization (geology) Andesite Geochemistry Scapolite Mineralogy Geology Fold (geology) engineering.material chemistry.chemical_compound Igneous rock Geophysics chemistry Geochemistry and Petrology engineering Economic Geology Sedimentary rock Magnetite Hornblende
Zdroj:	Economic Geology. 59:279-290
ISSN:	1554-0774 0361-0128
DOI:	10.2113/gsecongeo.59.2.279
Popis:	The Buena Vista iron ores have a geologic setting and genesis distinct from that usually attributed to contact-metasomatism. The ore is confined to igneous rock with the majority of the magnetite localization controlled by fold axes and fissures in hornblende andesite. No massive replacement bodies occur in sedimentary rock and the alteration preceding and accompanying mineralization affected only the igneous rock.Ore-bearing fluids introduced considerable quantities of iron, chlorine, fluorine, phosphorus, sodium, potassium, and carbon dioxide into the host rock. Vanadium also was introduced and formed the rare spinel type mineral, coulsonite, in association with two varieties of scapolite and various alteration minerals.Regional and local geology suggest that a structural intersection marks the area of mineralization and that structural control strongly influenced ore localization.
Databáze:	OpenAIRE
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