Matches in SemOpenAlex for { <https://semopenalex.org/work/W3150795793> ?p ?o ?g. }
Showing items 1 to 69 of
69
with 100 items per page.
- W3150795793 abstract "The Wenquan molybdenum deposit is associated with a Triassic granite in this area.The Wenquan granite is enriched in LILE and LREE,poor in HFSE,and has significantly higher contents of alkali(K2O+Na2O) and Sr,Ba than those of the island arc volcanic rocks.These geochemical characteristics are similar to post-collisional granites in high K calc-alkaline series.Studies of major elements,trace elements,REEs and chronology of the Wenquan pluton show that,in the geodynamic transition stage of continent-continent convergence to extension,the partial melting of the enriched lithospheric mantle generated the basaltic magma and triggered the partial melting of the thickened lower crust which produceded the acidic magma,and the Wenquan pluton was formed by mixing of the two magmas.Molybdenite Re-Os isotopic dating gave Os model ages of 212.7±2.6 Ma to 215.1±2.6 Ma with a weighted mean of 214.1±1.1 Ma,and an Re-Os isochron age of 214.4±7.1 Ma.These ages are close to K-Ar ages(223 to 226 Ma) and a SHRIMP zircon U-Pb age(223±7 Ma) for the Wenquan granite within the error range,but relatively younger.This implies that the Mo mineralization occurred in a late stage of the magmatic intrusion,and the metallogenesis took place in the transition stage from syn-collision to post-collision in the tectonic setting of the Qinling Orogenic Belt(QOB) after continental collision be-tween the North China Block(NCB) and the South China Block(SCB).This process is also corre-sponding to the geological events of metamorphism and deformation in South Qinling,closure of the Mian-Lue oceanic basin,and exhumation of the Dabie-Sulu ultrahigh-pressure metamorphic rocks.The large-scale continent-continent collision between NCB and SCB in the middle Triassic triggered sig-nificant crustal thickening and exhumation of subducted slab.In the late Triassic,the tectonic setting was transformed to the transition stage from collision to extension.Materials from the asthenospheric mantle would ascend into the root of the lower crust,which could induce partial melting of the lower crust and generate Mo-enriched granitic magma.The ore-forming elements enriched in the fluid derived from the condensation and fraction of the magma resulted in the Mo mineralization.The Mo deposits in the QOB are mainly formed in two episodes,namely 220± Ma and 140± Ma.The two episodes of metal-logenesis were developed in the tectonic transition settings from compression to extension,but they were in the different stages of the tectonic evolution.The occurrence of the Wenquan Mo-bearing plu-ton indicates that the Triassic tectonic-magmatic belt of Western Qinling is another favorable region for Mo mineralization in the QOB.Therefore,it is significant to pay more attention to evaluation of the ore-forming potentiality in the Triassic granites in Western Qinling." @default.
- W3150795793 created "2021-04-13" @default.
- W3150795793 creator A5000066788 @default.
- W3150795793 date "2009-01-01" @default.
- W3150795793 modified "2023-09-24" @default.
- W3150795793 title "Ore-forming event and geodynamic setting of molybdenum deposit at Wenquan in Gansu Province,Western Qinling" @default.
- W3150795793 hasPublicationYear "2009" @default.
- W3150795793 type Work @default.
- W3150795793 sameAs 3150795793 @default.
- W3150795793 citedByCount "0" @default.
- W3150795793 crossrefType "journal-article" @default.
- W3150795793 hasAuthorship W3150795793A5000066788 @default.
- W3150795793 hasConcept C127313418 @default.
- W3150795793 hasConcept C151730666 @default.
- W3150795793 hasConcept C156622251 @default.
- W3150795793 hasConcept C16942324 @default.
- W3150795793 hasConcept C17409809 @default.
- W3150795793 hasConcept C2776152364 @default.
- W3150795793 hasConcept C2776698055 @default.
- W3150795793 hasConcept C2777949781 @default.
- W3150795793 hasConcept C2778849375 @default.
- W3150795793 hasConcept C2780040746 @default.
- W3150795793 hasConcept C34122518 @default.
- W3150795793 hasConcept C487381 @default.
- W3150795793 hasConcept C75643213 @default.
- W3150795793 hasConcept C77928131 @default.
- W3150795793 hasConcept C79572550 @default.
- W3150795793 hasConceptScore W3150795793C127313418 @default.
- W3150795793 hasConceptScore W3150795793C151730666 @default.
- W3150795793 hasConceptScore W3150795793C156622251 @default.
- W3150795793 hasConceptScore W3150795793C16942324 @default.
- W3150795793 hasConceptScore W3150795793C17409809 @default.
- W3150795793 hasConceptScore W3150795793C2776152364 @default.
- W3150795793 hasConceptScore W3150795793C2776698055 @default.
- W3150795793 hasConceptScore W3150795793C2777949781 @default.
- W3150795793 hasConceptScore W3150795793C2778849375 @default.
- W3150795793 hasConceptScore W3150795793C2780040746 @default.
- W3150795793 hasConceptScore W3150795793C34122518 @default.
- W3150795793 hasConceptScore W3150795793C487381 @default.
- W3150795793 hasConceptScore W3150795793C75643213 @default.
- W3150795793 hasConceptScore W3150795793C77928131 @default.
- W3150795793 hasConceptScore W3150795793C79572550 @default.
- W3150795793 hasLocation W31507957931 @default.
- W3150795793 hasOpenAccess W3150795793 @default.
- W3150795793 hasPrimaryLocation W31507957931 @default.
- W3150795793 hasRelatedWork W1884854517 @default.
- W3150795793 hasRelatedWork W1971844265 @default.
- W3150795793 hasRelatedWork W1974080280 @default.
- W3150795793 hasRelatedWork W2024835407 @default.
- W3150795793 hasRelatedWork W2080003870 @default.
- W3150795793 hasRelatedWork W2137661521 @default.
- W3150795793 hasRelatedWork W2140668265 @default.
- W3150795793 hasRelatedWork W2361029666 @default.
- W3150795793 hasRelatedWork W2372302623 @default.
- W3150795793 hasRelatedWork W2382339919 @default.
- W3150795793 hasRelatedWork W2391358439 @default.
- W3150795793 hasRelatedWork W2536692826 @default.
- W3150795793 hasRelatedWork W2808044838 @default.
- W3150795793 hasRelatedWork W2897478627 @default.
- W3150795793 hasRelatedWork W2969869603 @default.
- W3150795793 hasRelatedWork W3001645234 @default.
- W3150795793 hasRelatedWork W3095072921 @default.
- W3150795793 hasRelatedWork W3111671544 @default.
- W3150795793 hasRelatedWork W2984098815 @default.
- W3150795793 hasRelatedWork W3147331006 @default.
- W3150795793 isParatext "false" @default.
- W3150795793 isRetracted "false" @default.
- W3150795793 magId "3150795793" @default.
- W3150795793 workType "article" @default.