Iron and magnesium isotope systematics from the Shuangwang gold deposit in the Qinling Orogen, central China

Development of a multi-isotopic (Pb, Fe, Cu) analytical protocol in gold matrices for ancient coin provenance studies

“…29,73 It has been suggested that Fe isotopes from pyrites are very useful to understand the hydrothermal processes associated with gold deposit. 77 In the absence of a systematic study of the iron isotopic signature of natural gold, we can take the Fe isotopic information obtained from pyrite as a proxy of the Fe isotope signature of metallic gold since these minerals are frequently associated in ores. Liu et al 77 found a d 57 Fe range close to 1& in pyrite from a gold deposit, and this could be an indication that the gold Fe isotope signature shows wide isotopic variations as well, which is thus potentially useful for gold tracing.…”

“…77 In the absence of a systematic study of the iron isotopic signature of natural gold, we can take the Fe isotopic information obtained from pyrite as a proxy of the Fe isotope signature of metallic gold since these minerals are frequently associated in ores. Liu et al 77 found a d 57 Fe range close to 1& in pyrite from a gold deposit, and this could be an indication that the gold Fe isotope signature shows wide isotopic variations as well, which is thus potentially useful for gold tracing. Moreover, and in contrast to copper, iron is not used to alloy gold for, e.g., monetary debasements, and it could therefore be directly linked to the gold source, especially for primary gold.…”

Genesis of the Baiyun Gold Deposit in Northeast Hubei Province, China: Insights from In Situ Trace Elements and S-Fe Isotopes of Sulfide

“…Currently, Fe isotope data are primarily used in analyses of biological processes, environmental changes, and magma evolution, among other areas of research [106][107][108][109][110][111]. The application of Fe isotopes in mineral deposits mainly focuses on stripe iron formation; submarine hydrothermal mineralization, magmatic mineralization, magmatic-hydrothermal mineralization, and other hydrothermal mineralization systems; and the supergene oxidation of mineral deposits [112][113][114][115][116][117][118][119][120][121][122]. These studies show that Fe isotopes have great potential for tracing the source of mineralization materials and constraining the genesis of mineral deposits.…”

Geology, geochemistry and genesis of the Suolong gold deposit in the West Qinling Orogen, Gansu Province, China

“…The Shangdan suture likely formed following the subduction and closure of the Shangdan Ocean during Late Devonian (Dong et al, 2011; Ma et al, 2018; Meng & Zhang, 2000). The Mianlue suture formed due to the subduction and closure of the Mianlue portions of the Pale‐Tethys Ocean during the Late Permian to Early Triassic (Liu et al, 2021; Ma et al, 2018; Sui et al, 2020; Yang et al, 2016).…”

“…There are more than 50 gold deposits of varying scales were discovered over the past decades (Figure 1c; Chen et al, 2004; Zeng et al, 2012). Typical deposits are Yangshan (>300 t, Liang et al, 2014; Yang et al, 2016), Zhaishang (127 t, Liu, Dai, et al, 2015), Baguamiao (106 t, Wang et al, 2020), Dashui (>100 t, Peng et al, 2018; Wang et al, 2019; Zeng et al, 2013), Liba (79 t, Zeng et al, 2012), Daqiao (>105 t, Wu et al, 2018, 2019), Zaozigou (142 t, Sui et al, 2020) and Shuangwang (>70 t, Wang et al, 2015; Liu et al, 2021). Most of these gold deposits are hosted within early Palaeozoic to Triassic, unmetamorphosed to weakly metamorphosed clastic and carbonate rocks (Hu et al, 2022; Liu, Liu, et al, 2015).…”