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chlorite ion formula

A chlorite (compound) is a compound that contains this group, with chlorine in oxidation state +3. e) iodite. Based on our previous SWIR spectral and petrographic data (Zhang et al., 2017, Zhang et al., 2020, Chen et al., 2019), 80 chlorite-bearing samples were selected, from which 620 polished thin-sections were prepared for the EPMA and LA–ICP–MS elemental analyses. Therefore, spatial variations of chemical compositions and short-wave infrared (SWIR) spectroscopy of alteration minerals have been widely adopted for porphyry Cu (–Au) exploration worldwide (Yang et al., 2005, Chang et al., 2011, Harraden et al., 2013, Cooke et al., 2014, Neal et al., 2018, Feng et al., 2019). The deposit is composed mainly of discrete small-scale carbonatite veins emplaced largely along shallow-lying brittle fractures. The actual substitution mechanism would depend on the P–T conditions, whole-rock chemical compositions and other physicochemical conditions of the hydrothermal environment (e.g., Inoue et al., 2009, Based on petrographic observation, the chlorite in the Tonglushan Cu–Au–Fe skarn deposit can be divided into three types: (i) disseminated-type that replaced biotite and/or hornblende in the quartz monzodiorite (porphyry), (ii) vein-type in quartz–chlorite–sulfides veins along/near the internal and external intrusive contact, and (iii) replacement-type that replaced skarn minerals or Fe oxides in the skarn mineralization center. Chlorine dioxide is a chemical compound with the formula ClO 2 and the chlorite ion, or chlorine dioxide anion, is ClO 2 −. All three types of chlorite were formed in the main Cu–Au sulfide. Here we present detailed whole-rock element and Sr-Nd-Pb isotope, quartz H-O isotope and pyrite He-Ar isotope geochemical data for the Xiadian gold deposit, a large Jiaojia-type gold deposit in the Jiaodong district, which furnishes new constrains on the sources of ore-forming fluids and metals. Synthesis of regional geological, geochemical and isotopic data led us to conclude that the Late Jurassic gold mineralization in the northern NCC is genetically related to lithosphere destruction of the NCC. Password must contain at least one uppercase letter, a number and a special character. d) iodide Ore Geology Reviews, Volume 126, 2020, Article 103781, Ore Geology Reviews, 2020, Article 103816, Ore Geology Reviews, Volume 127, 2020, Article 103755, Ore Geology Reviews, Volume 127, 2020, Article 103824, Ore Geology Reviews, Volume 126, 2020, Article 103798, Ore Geology Reviews, Volume 126, 2020, Article 103791, Chlorite as an exploration indicator for concealed skarn mineralization: Perspective from the Tonglushan Cu–Au–Fe skarn deposit, Eastern China, National Natural Science Foundation of China, Native gold from the Kamenka-Barabanovsky and Kharuzovka alluvial placers (Northwest Salair Ridge, Western Siberia, Russia): Typomorphic features and possible bedrock sources, Study on the major minerals potential in China, Multiple episodes of tectono-thermal disturbances in the Huayangchuan U-Nb-Pb polymetallic deposit in the Xiaoqinling region, central China and their significances on metallogeny, Elemental and multiple isotopic evidences of enriched lithospheric mantle origin of the Xiadian gold deposit in the Jiaodong Peninsula, East China, Zircon U-Pb dating reveals Late Jurassic gold mineralization in the Jidong district of the northern North China Craton, Thermal history of an Early Paleozoic epithermal deposit: Constraints from. To use all the functions on Chemie.DE please activate JavaScript. C) nitrite ion. By continuing you agree to the use of cookies. Considering the complex collisional and amalgamation history in this area, we believe that there is exploration potential for ancient porphyry and epithermal deposits within the eastern section of the CAOB. Based on detailed petrographic observation, we present new EPMA and LA–ICP–MS elemental data for the Tonglushan chlorite, and discuss their implications on hydrothermal fluid evolution and exploration of concealed skarn orebodies there. What scientific concept do you need to know in order to solve this problem? limestone and dolomite (Fig. The undiscovered sources of gold are might be also of intrusion related type. 3; Zhao et al., 2012). At Tonglushan, chlorite alteration is well developed in the main Cu–Au sulfide ore stage. Numerous studies have shown that chlorite has a wide compositional range, and proposed three ion substitutions mechanisms for chlorite, i.e., (1) Fe2+ ⇔ Mg2+, (2) Tschermak AlivAlvi ⇔ Si (Mg2+, Fe2+), and (3) di-trioctahedral 3(Mg2+, Fe2+) ⇔ □ + 2Alvi (Inoue et al., 2009, and ref. The H-O isotopes (δDV-SMOW = −93.9‰ to −102.3‰, δ18OH2O = −0.2‰ to 1.6‰) of fluid inclusions in quartzs collected from auriferous pyrite–sericite–quartz altered rocks are distinctly different from either primary magmatic water and metamorphic water or meteoric water in the Jiaodong district but similar to the local enriched mantle-derived fluids.

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