Matches in SemOpenAlex for { <https://semopenalex.org/work/W2085504882> ?p ?o ?g. }
- W2085504882 endingPage "76" @default.
- W2085504882 startingPage "52" @default.
- W2085504882 abstract "Abstract The Bulong gold deposit, located in Akqi County, Southwest Tianshan, China, occurs in Upper Devonian fine-grained clastic rocks. Gold mineralization is controlled by a series of gently tilted fractured zones. Four ore-bearing quartz–barite veins have been recognized in the Bulong ore district. These range in length from 15 to 660 m and are up to 1 m thick. On the basis of field evidence and petrographic analysis, four stages of vein emplacement and hydrothermal mineralization can be distinguished: (1) an early quartz stage, characterized by the occurrence of massive quartz veins; (2) a barite vein stage; (3) a barite–quartz stage; this represents the main stage of gold mineralization in the Bulong deposit and is characterized by the formation of laminated quartz veins, barite–quartz veins and locally calcite–barite–quartz veins in quartz–barite veins; and (4) a late-stage ankerite–calcite veinlet stage. The ore in these veins occurs as native gold (± pyrite) and is predominantly hosted in quartz and barite. Two types of fluid inclusions, namely H2O–NaCl and H2O–CO2 (± CH4/N2)–NaCl types, have been recognized in quartz, barite and calcite. Homogenization temperatures of fluid inclusions vary from 159 to 390 °C, with Th during the main stage of gold mineralization ranging from 200 to 340 °C. Salinity ranges from 2.4 to 46.2 wt.% NaCl equiv. Ore fluid densities range from 0.73 to 1.13 g/cm3. The δ34S values of pyrite associated with gold mineralization range from 14.6‰ to 19.2‰ and those of barite from 35.0‰ to 39.6‰, indicating that the sulfur was probably derived from the sedimentary host rocks. The 3He / 4He ratios of fluid inclusions in pyrite are 0.24–0.82 (R / Ra), approximating helium ratios of the crust. The 40Ar / 36Ar ratios vary from 338 to 471, slightly higher than those indicative of atmospheric argon. The 40Ar / 4He ratios of the ore fluids range from 0.02 to 0.41 with a mean of 0.15. Helium and argon isotope compositions of fluid inclusions suggest that the ore fluids of the Bulong gold deposit were mainly derived from the crust. The δ13CPDB values of fluid inclusions in vein quartz from the Bulong gold deposit define a narrow range of − 4.6‰ to − 1.4‰. The δ18OSMOW values of vein quartz range from 17.2‰ to 21.1‰, with corresponding δ18Ofluid values of 6.7‰ to 14.7‰, and δD values of fluid inclusions of between − 70‰ and − 55‰. The combined isotopic data imply that the ore-forming fluids of the Bulong gold deposit were mainly derived from basinal fluids, with some minor contributions from magmatic fluids and meteoric water, and the carbon in the ore fluids was mainly derived from marine carbonate rocks. The temperature and pressure decrease, local ore-forming fluid boiling, water–rock exchange, changes in composition of ore fluids played important roles in ore-forming processes of the Bulong gold deposit." @default.
- W2085504882 created "2016-06-24" @default.
- W2085504882 creator A5012416384 @default.
- W2085504882 creator A5031221229 @default.
- W2085504882 creator A5045190155 @default.
- W2085504882 creator A5048297380 @default.
- W2085504882 date "2006-07-01" @default.
- W2085504882 modified "2023-10-11" @default.
- W2085504882 title "Geology and geochemistry of the Bulong quartz–barite vein-type gold deposit in the Xinjiang Uygur Autonomous Region, China" @default.
- W2085504882 cites W1977059674 @default.
- W2085504882 cites W1982952195 @default.
- W2085504882 cites W1990360286 @default.
- W2085504882 cites W1990762274 @default.
- W2085504882 cites W2001064165 @default.
- W2085504882 cites W2005121896 @default.
- W2085504882 cites W2005925547 @default.
- W2085504882 cites W2012362383 @default.
- W2085504882 cites W2012935449 @default.
- W2085504882 cites W2015018239 @default.
- W2085504882 cites W2028917031 @default.
- W2085504882 cites W2042660273 @default.
- W2085504882 cites W2049020635 @default.
- W2085504882 cites W2055224420 @default.
- W2085504882 cites W2058676840 @default.
- W2085504882 cites W2068202901 @default.
- W2085504882 cites W2071214946 @default.
- W2085504882 cites W2074010600 @default.
- W2085504882 cites W2075595948 @default.
- W2085504882 cites W2075901285 @default.
- W2085504882 cites W2078811057 @default.
- W2085504882 cites W2083372372 @default.
- W2085504882 cites W2088381358 @default.
- W2085504882 cites W2090757504 @default.
- W2085504882 cites W2091051479 @default.
- W2085504882 cites W2092868748 @default.
- W2085504882 cites W2113131903 @default.
- W2085504882 cites W2122391182 @default.
- W2085504882 cites W2123094947 @default.
- W2085504882 cites W2127521842 @default.
- W2085504882 cites W2148239728 @default.
- W2085504882 cites W2148957284 @default.
- W2085504882 cites W2150005997 @default.
- W2085504882 cites W2156327771 @default.
- W2085504882 cites W2171388740 @default.
- W2085504882 cites W2290157662 @default.
- W2085504882 cites W4229818555 @default.
- W2085504882 cites W4232721889 @default.
- W2085504882 cites W4234495212 @default.
- W2085504882 cites W4234763407 @default.
- W2085504882 cites W4238079970 @default.
- W2085504882 cites W4239426915 @default.
- W2085504882 cites W4240909952 @default.
- W2085504882 cites W4246055470 @default.
- W2085504882 cites W4246555288 @default.
- W2085504882 cites W4246999774 @default.
- W2085504882 cites W4247091605 @default.
- W2085504882 cites W4247631931 @default.
- W2085504882 cites W4255183891 @default.
- W2085504882 doi "https://doi.org/10.1016/j.oregeorev.2005.07.033" @default.
- W2085504882 hasPublicationYear "2006" @default.
- W2085504882 type Work @default.
- W2085504882 sameAs 2085504882 @default.
- W2085504882 citedByCount "20" @default.
- W2085504882 countsByYear W20855048822012 @default.
- W2085504882 countsByYear W20855048822013 @default.
- W2085504882 countsByYear W20855048822014 @default.
- W2085504882 countsByYear W20855048822015 @default.
- W2085504882 countsByYear W20855048822017 @default.
- W2085504882 countsByYear W20855048822018 @default.
- W2085504882 countsByYear W20855048822019 @default.
- W2085504882 countsByYear W20855048822020 @default.
- W2085504882 countsByYear W20855048822022 @default.
- W2085504882 countsByYear W20855048822023 @default.
- W2085504882 crossrefType "journal-article" @default.
- W2085504882 hasAuthorship W2085504882A5012416384 @default.
- W2085504882 hasAuthorship W2085504882A5031221229 @default.
- W2085504882 hasAuthorship W2085504882A5045190155 @default.
- W2085504882 hasAuthorship W2085504882A5048297380 @default.
- W2085504882 hasConcept C118552586 @default.
- W2085504882 hasConcept C127313418 @default.
- W2085504882 hasConcept C151730666 @default.
- W2085504882 hasConcept C15744967 @default.
- W2085504882 hasConcept C166957645 @default.
- W2085504882 hasConcept C17409809 @default.
- W2085504882 hasConcept C191935318 @default.
- W2085504882 hasConcept C2776152364 @default.
- W2085504882 hasConcept C2777202286 @default.
- W2085504882 hasConcept C2779870107 @default.
- W2085504882 hasConcept C7145564 @default.
- W2085504882 hasConcept C95457728 @default.
- W2085504882 hasConceptScore W2085504882C118552586 @default.
- W2085504882 hasConceptScore W2085504882C127313418 @default.
- W2085504882 hasConceptScore W2085504882C151730666 @default.
- W2085504882 hasConceptScore W2085504882C15744967 @default.
- W2085504882 hasConceptScore W2085504882C166957645 @default.
- W2085504882 hasConceptScore W2085504882C17409809 @default.
- W2085504882 hasConceptScore W2085504882C191935318 @default.
- W2085504882 hasConceptScore W2085504882C2776152364 @default.