Spatio-temporal distribution and tectonic settings of the major iron deposits in China: An overview

Mineralogical and sulfur isotopic evidence for the incursion of evaporites in the Jinshandian skarn Fe deposit, Edong district, Eastern China

“…The exceptions are Jinshandian and Chengchao skarn Fe only deposits in the Edong Fe-Cu district (Fig. 1), which have the same formation age with the magnetite-apatite deposits Xie et al, 2011Xie et al, , 2012Zhang et al, 2014a).…”

“…For example, evaporites provide Cl À and other anions or reduced S, which are required for the transport and concentration of metals, resulting in the formation of sediment-hosted mineral deposits including Mississippi Valley-type (MVT) Pb-Zn deposits, sandstone Cu and U deposits, and sedimentary exhalative (SEDEX) Pb-Zn-Cu deposits (Sverjensky, 1986;Hanor, 1994;Warren, 1996Warren, , 1997Warren, , 2000Broadbent et al, 1998;Chetty and Frimmel, 2000;Hitzman and Valenta, 2005;Leach et al, 2005;Selley et al, 2005). In addition, evaporites also offer active components and volatile constituents, such as Na + , K + , Ca 2+ , and Cl À , necessary for the voluminous alteration of magmatic-hydrothermal deposits including the iron oxide copper-gold (IOCG) deposits Johnson, 1996, 2000;Hitzman, 2000;Benavides et al, 2007;Soloviev, 2010;Chen, 2013), skarn Fe-Cu deposits (Cai, 1980(Cai, , 1981Rose et al, 1985;Chang et al, 1991;Zhai et al, 1996;Pan and Dong, 2003;Zhou et al, 2000Zhou et al, , 2005Zhou et al, , 2011Li et al, 2013;Zhang et al, 2014aZhang et al, , 2014b, magnetite-apatite deposits (Ningwu Research Group, 1978;Zhang, 1986;Fan et al, 2012;Li et al, 2014;Zhou et al, 2014;Li et al, 2015), and even some porphyry deposits (Field et al, 2005). They also serve as a possible source for providing excess S to trigger the immiscibility of sulfide liquid form silicate melt and precipitate sulfides to produce Cu-Ni(-PGE) deposits …”

“…1) (Cai, 1980(Cai, , 1981Shu et al, 1992), which were considered as evidence for the incursion of evaporites into the ore-forming system (Ningwu Research Group, 1978;Chang et al, 1991;Barton and Johnson, 1996;Zhai et al, 1996;Benavides et al, 2007;Li et al, 2013;Zhang et al, 2014a). Recently, a preliminary study of sulfur isotopes of sulfate-sulfide pairs in the Jinshandian skarn Fe deposit in the Edong ore district (Fig.…”

Types and geological characteristics of iron deposits in China

“…The marine sedimentary iron deposits are widespread in China and distributed in the Zhangjiakou area in Hebei Province, southern China, and the Qinling Mountains in Shaanxi Province (Li et al, 2012a;Zhang et al, 2014b).…”

Remote Sensing Extraction of Stopes and Tailings Ponds in an Ultra-Low-Grade Iron Mining Area

“…In this context, a new type of iron, ultra-low-grade iron ore with 10%-20% total iron (TFe) has been developed massively in Kuancheng County, Hebei Province (Li et al, 2015;Zhang et al, 2014;Shi et al, 2015;Li et al, 2012). Changhe Mining Area is an important mining area in the region, and has proven reserves of more than 2.3 billon tons of ultralow-grade iron ore (Ma et al, 2017).…”