NDLI: Oxidation Conditions of Granitic Magmas Associated With Porphyry Copper Deposits in the Central Asian Orogenic Belt

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Oxidation Conditions of Granitic Magmas Associated With Porphyry Copper Deposits in the Central Asian Orogenic Belt

Content Provider	Semantic Scholar
Author	Shen, Ping Hattori, Keiko Pan, Hongdi Jackson, Simon E. Seitmuratova, Eleonora Shen, Yuanchao
Copyright Year	2014
Abstract	Porphyry copper deposits are associated with oxidized felsic magmas (Sillitoe, 2010). Such oxidized magmas are considered to supply metals and S to ore deposits (Hedenquist and Lowenstern, 1994; Hattori and Keith, 2001; Cooke et al., 2005). Ce is 4+ in oxidized conditions and readily incorporated into zircon, which produces positive Ce anomalies. Previous studies show that the Ce/Ce ratios in zircon can be used as a proxy for oxygen fugacity of magmas (e.g., Trail et al., 2012). The ratios successfully discriminate fertile igneous rocks from barren rocks (Ballard et al. 2002; Liang et al., 2006; Qiu et al., 2013; Han et al., 2013). The Central Asian Orogenic Belt (CAOB) hosts porphyry-type deposits with significant range in size including largeand intermediatesize deposits (Figure 1). The CAOB, therefore, presents an opportunity to evaluate the relationship between the oxidation condition and metal-fertility of granitic magmas.
Starting Page	601
Ending Page	602
Page Count	2
File Format	PDF HTM / HTML
DOI	10.1111/1755-6724.12374_49
Volume Number	88
Alternate Webpage(s)	http://www.geojournals.cn/dzxben/ch/reader/create_pdf.aspx?falg=1&file_no=2014ens208049&quarter_id=Z2&year_id=2014
Alternate Webpage(s)	https://doi.org/10.1111/1755-6724.12374_49
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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