Matches in SemOpenAlex for { <https://semopenalex.org/work/W2376853204> ?p ?o ?g. }
Showing items 1 to 75 of
75
with 100 items per page.
- W2376853204 abstract "The Yelasai copper deposit,Qinghai Province,is located in the west of eastern Kunlun orogenic belt.It is a newly discovered,medium-sized copper deposit in the Qimantage area.The major host rocks are the intermediate acid intrusive rocks of Early Indosinian,the minors are marble and basic volcanic rocks of Tanjianshan Group.Mineralization is controlled by NWW-striking faults,showing hydrothermal alteration of silicification,sericitization and potash feldspathization.According to the crosscutting relationships of the vein bodies and mineral replacement,the ore-forming process can be divided into three stages: StageⅠ,Ⅱ and Ⅲ.Research on fluid inclusions shows that: fluid inclusion types of ore-bearing quartzes can be further classified into three subtypes: Aqueous and gas two-phase(W-type),daughter mineral-bearing three-phase(S-type) and CO2-rich three-phase(C-type).The salinity of hydrothermal fluid is 3.42%~65.48% NaCleqv,mainly concentrated in 40.00%~55.00% NaCleqv and 4.00%~10.00% NaCleqv.The density is 0.43~1.25g·cm-3,concentrated in 1.07~1.14g·cm-3 and 0.55~0.85g·cm-3,both of them show two peaks on the histogram.The whole range of mineralization temperature is 187~579℃,whereas temperature in stageⅠ,Ⅱ and Ⅲ is 332~579℃,294~345℃,187~212℃,respectively.Coexisting of C-type and S-type inclusions in stageⅠindicates fluid-boiling or immiscibility.Possible fluid evolution is as follows: The original magmatic ore-forming fluids,extremely high temperature,medium to high salinity(about 15%~25% NaCleqv),directly exsolve from a melt in the final stage of magma crystallization and partition into immiscible S-type(high salinity)and low salinity C-type and low salinity W-type fluids,which are trapped at high temperature.Fluid-boiling or immiscibility during stageⅠcauses ore precipitation for the first time,while fluid-mixing during stageⅡplays an important role in Cu deposition.Mineralization pressure is about 47.4~93.1MPa,estimated by isochore graphic method,and the depth is 1.8~3.5km.The acid intrusive rocks,closely associated with mineralization,belong to high potassium,peraluminous calc alkaline series.The contents of REE range in 133.9×10-6~240.6×10-6,between the average of upper curst and that of the lower crust,LREE fractionation is significant while HREE fractionation is not,negative δEu anomalies are evident.The features in HREE loss,K,Rb,Th positive anomalies and Nb,Ta negative anomalies,particularly P,Ti loss,share similar features with the granites in collision belt in the terms of geochemistry.In the Rb-Y+Nb and Nb-Y diagrams,all samples fall in syn-collision granite field.Genetic type of Yelasai copper deposit is porphyry-like copper deposit under the control of linear faults,mineralization occurs during the intensive intracontinent orogenic period in the late stage of Early Indosinian." @default.
- W2376853204 created "2016-06-24" @default.
- W2376853204 creator A5028184198 @default.
- W2376853204 date "2010-01-01" @default.
- W2376853204 modified "2023-09-23" @default.
- W2376853204 title "Genetic type and mineralizing mechanism of the Yelasai copper deposit in Kaerqueka area,eastern Kunlun,Qinghai Province." @default.
- W2376853204 hasPublicationYear "2010" @default.
- W2376853204 type Work @default.
- W2376853204 sameAs 2376853204 @default.
- W2376853204 citedByCount "0" @default.
- W2376853204 crossrefType "journal-article" @default.
- W2376853204 hasAuthorship W2376853204A5028184198 @default.
- W2376853204 hasConcept C111368507 @default.
- W2376853204 hasConcept C111696902 @default.
- W2376853204 hasConcept C118552586 @default.
- W2376853204 hasConcept C120806208 @default.
- W2376853204 hasConcept C127313418 @default.
- W2376853204 hasConcept C129513315 @default.
- W2376853204 hasConcept C151730666 @default.
- W2376853204 hasConcept C156622251 @default.
- W2376853204 hasConcept C15744967 @default.
- W2376853204 hasConcept C159390177 @default.
- W2376853204 hasConcept C159750122 @default.
- W2376853204 hasConcept C17409809 @default.
- W2376853204 hasConcept C191897082 @default.
- W2376853204 hasConcept C192241223 @default.
- W2376853204 hasConcept C192562407 @default.
- W2376853204 hasConcept C199289684 @default.
- W2376853204 hasConcept C2776152364 @default.
- W2376853204 hasConcept C2777202286 @default.
- W2376853204 hasConcept C544778455 @default.
- W2376853204 hasConceptScore W2376853204C111368507 @default.
- W2376853204 hasConceptScore W2376853204C111696902 @default.
- W2376853204 hasConceptScore W2376853204C118552586 @default.
- W2376853204 hasConceptScore W2376853204C120806208 @default.
- W2376853204 hasConceptScore W2376853204C127313418 @default.
- W2376853204 hasConceptScore W2376853204C129513315 @default.
- W2376853204 hasConceptScore W2376853204C151730666 @default.
- W2376853204 hasConceptScore W2376853204C156622251 @default.
- W2376853204 hasConceptScore W2376853204C15744967 @default.
- W2376853204 hasConceptScore W2376853204C159390177 @default.
- W2376853204 hasConceptScore W2376853204C159750122 @default.
- W2376853204 hasConceptScore W2376853204C17409809 @default.
- W2376853204 hasConceptScore W2376853204C191897082 @default.
- W2376853204 hasConceptScore W2376853204C192241223 @default.
- W2376853204 hasConceptScore W2376853204C192562407 @default.
- W2376853204 hasConceptScore W2376853204C199289684 @default.
- W2376853204 hasConceptScore W2376853204C2776152364 @default.
- W2376853204 hasConceptScore W2376853204C2777202286 @default.
- W2376853204 hasConceptScore W2376853204C544778455 @default.
- W2376853204 hasOpenAccess W2376853204 @default.
- W2376853204 hasRelatedWork W2019170197 @default.
- W2376853204 hasRelatedWork W2023962049 @default.
- W2376853204 hasRelatedWork W2727000329 @default.
- W2376853204 hasRelatedWork W2770955453 @default.
- W2376853204 hasRelatedWork W2781831933 @default.
- W2376853204 hasRelatedWork W2809839017 @default.
- W2376853204 hasRelatedWork W2895884491 @default.
- W2376853204 hasRelatedWork W2897543651 @default.
- W2376853204 hasRelatedWork W2907192137 @default.
- W2376853204 hasRelatedWork W2932848533 @default.
- W2376853204 hasRelatedWork W2943327762 @default.
- W2376853204 hasRelatedWork W2966460034 @default.
- W2376853204 hasRelatedWork W2972773065 @default.
- W2376853204 hasRelatedWork W2976968777 @default.
- W2376853204 hasRelatedWork W3016260984 @default.
- W2376853204 hasRelatedWork W3033476550 @default.
- W2376853204 hasRelatedWork W3065513652 @default.
- W2376853204 hasRelatedWork W3102347917 @default.
- W2376853204 hasRelatedWork W3145182756 @default.
- W2376853204 hasRelatedWork W3151178903 @default.
- W2376853204 isParatext "false" @default.
- W2376853204 isRetracted "false" @default.
- W2376853204 magId "2376853204" @default.
- W2376853204 workType "article" @default.