Fluid inclusion and stable (H-O-C) isotope studies of the giant Shuangjianzishan epithermal Ag-Pb-Zn deposit, Inner Mongolia, NE China

Fluid evolution and ore genesis of Cu–Pb–Zn veins in the Panjiaduan deposit, Great Xing’an Range, NE China: evidence from fluid inclusion and H–O–He–Ar isotopes

“…The results of the computations, depicted in Figure 8, illustrate the systematics of isotopic exchange between magmatic or meteoric and rocks of igneoushosted vein-type deposits. The isotopic compositions of the oreforming fluids associated with these igneous-hosted vein-type deposits indicate that these fluids were probably mixed magmatic-meteoric waters similar to those reported from the Guanajuato Cu-Pb-Zn-(Ag-Au) and Koru-Tesbihdere Pb-Zn-Cu-(Ag-Au) deposits (Mango et al 2014;Cicek & Oyman, 2016), or predominantly meteoric water as is the case for the Shuangjianzishan Ag-Pb-Zn, Weilasituo Zn-Cu-Ag and Bairendaba Ag-Pb-Zn deposits (Ouyang et al 2014;Li et al 2017;Zhang et al 2019). However, a minor component of magmatic water cannot be precluded on the basis of the smaller isotopic fractionation factors between water and rocks in partial equilibrium systems , and the above causes for depleted the δD SMOW values.…”

Fluid-rock interactions leading to the formation of the epithermal Ag-Pb-Zn veins: A perspective of thermodynamic modeling

“…Numerous porphyry Mo(-Cu), skarn Fe(-Sn), greisen Sn(-W), epithermal Au and Ag-Pb-Zn vein-type deposits have been discovered in the Great Higgan Range (GHR) ( Fig. 1 c) [16] , [17] , [18] , [19] , [20] , [21] , [22] , [23] . These deposits are mainly hosted by Paleozoic strata and Mesozoic granites ( Fig.…”

Depositional age and genesis of the host strata of the Shuangjianzishan Ag–Pb–Zn deposit: Implications for the Late Carboniferous magmatic–hydrothermal activities and tectonic evolution of the eastern central Asia orogenic belt

“…Second, Ag-Pb-Zn deposits from the Southern Great Xing'an Range metallogenic province are commonly related to magmatic-hydrothermal activities. Recent investigations on Ag-Pb-Zn mineralization-related Mesozoic porphyry Mo-(Cu) and skarn Fe-(Sn) deposits (e.g., Ke et al, 2017;Zhai et al, 2018Zhai et al, , 2019Zhai et al, , 2020Yuan et al, 2019;Zhang et al, 2019;Wang et al, 2020;Yang et al, 2020) have identified a major Mesozoic magmatic-hydrothermal episode, which played a key role in the mineralization. If the Late Carboniferous volcanic activities were also accompanied by high-temperature hydrothermal alteration during the generation of low-δ 18 O magma, the magmatic-hydrothermal activities definitely should have contributed to the ore-forming process.…”

“…It is generally accepted that the Ag-Pb-Zn deposits in the Southern Great Xing'an Range polymetallogenic province are related to the epithermal deposition of magmatic-hydrothermal fluids. A major magmatic-hydrothermal episode mainly related to Late Paleozoic porphyry bodies has been well characterized (e.g., Zhang et al, 2015aZhang et al, , 2015bZhang et al, , 2019Ke et al, 2017;Zhai et al, 2018Zhai et al, , 2019Zhai et al, , 2020Yuan et al, 2019;Wang et al, 2020;Yang et al, 2020). However, earlier magmatic-hydrothermal activities since the deposition of the host strata have been less studied.…”