Fe isotope and trace element geochemistry of the Neoproterozoic syn-glacial Rapitan iron formation

Petrography and geochemistry of the Shilu Fe–Co–Cu ore district, South China: Implications for the origin of a Neoproterozoic BIF system

“…After a billion year hiatus, BIFs reappeared in the Neoproterozoic between 0.85 and 0.6 Ga (Ilyin, 2009;Klein, 2005). The recurrence of the Neoproterozoic BIFs has been proposed to have a genetic link to either the Cryogenian-Ediacaran snowball-type global glaciations (Halverson et al, 2011;Hoffman et al, 1998;Hurtgen et al, 2002;Kirschvink, 1992;Klein, 2005;Le Heron et al, 2013;Stern et al, 2006;Young, Ore Geology Reviews 57 (2014) global oceans through continental weathering and/or submarine hydrothermal process (Isley and Abbott, 1999). Trace element and isotopic data (C, O, S, Nd, etc.)…”

Geochemical and Nd isotopic constraints on provenance and depositional setting of the Shihuiding Formation in the Shilu Fe–Co–Cu ore district, Hainan Province, South China

“…Chemical sediments capture the rare earth elements and yttrium (REY) as a result of precipitation from sea-floor hydrothermal fluids (Bau and Dulski, 1999;Klein and Ladeira, 2004;Basta et al, 2011;Halverson et al, 2011). According to the distribution pattern of PAAS-normalized REY, the low-temperature hydrothermal fluids that supplied metallogenic material to the Shihuiding Formation can be identified.…”

“…Major and trace elements, including rare earth elements (REEs), can provide clues to the nature of ferruginous precipitation (Bau, 1999;Klein and Ladeira, 2004;Basta et al, 2011;Halverson et al, 2011;Baldwin et al, 2012;Xu et al, 2014). In this paper, we present the results of a comprehensive study of the petrography, major, trace, and rare earth elements (REEs), and Nd isotopes of sandstones collected from the Shihuiding Formation.…”

Geological characteristics and age of the Dahongliutan Fe-ore deposit in the Western Kunlun orogenic belt, Xinjiang, northwestern China

“…In addition, the Neoproterozoic Jingtieshan-type iron deposit (in Gansu province) in China is considered as a Superior-type BIF (Sun et al, 1998). Xu et al (2013Xu et al ( , 2014 Klein and Ladeira, 2004;Halverson et al, 2011) or glaciated rift environment (Young, 2002). Rapitantype BIFs have been widely reported to be related to the prominent Neoproterozoic glacial events (Sturian: 718-660 Ma; Marinoan: 651-635 Ma), such as those in the Rapitan in Canada, Urucum in Brazil, the Adelaide Geosyncline in South Australia, Damara in South Africa, southern Paraguay Belt in Brazil and Jiangnan paleocontinent in South China Block (Tang et al, 1987;Klein and Beukes, 1993;Lottermoser and Ashley, 2000;Klein and Ladeira, 2004;Ilyin, 2009;Babinski et al, 2013;Cox et al, 2013;Li et al, 2014).…”