The geochemistry and geological significance of basic volcanic rocks of the Shuangquan Gold Deposit From the Karamaili region
Received:March 23, 2018  Revised:July 12, 2018
View Full Text  View/Add Comment  Download reader
DOI:
KeyWord:Karamaili;Basic volcanic rocks;Crust mantle mixed source;Pre arc tension environment.
     
AuthorInstitution
liushijie 新疆大学地质与矿业工程学院
gongxiaoping 新疆大学地质与矿业工程学院
Hits: 948
Download times: 1024
Abstract:
      Abstract: There are a large number of Late Paleozoic volcanic rocks in the Maimi area of Cara, which records the activities of the Siberia plate and the Kazakhstan Junggar plate.This paper systematically analyzes the lithofacies and geochemical characteristics of the basic volcanic rocks in the Shuangquan gold deposit of Karamaili, and discusses the tectonic setting of the region and its significance.The basic volcanic rocks of the Shuang Quan gold deposit belong to the Peraluminous and calc alkaline rock series, and the rocks are rich in potassium and magnesium and are poor in sodium and calcium,Characteristics of rocks rich in potassium and magnesium and poor in sodium and calcium;Its magmatic hydrothermal source may be the crust and mantle mixed magma of the lower crust or upper mantle.At the same time, the abundance of large ion stone elements is low, Enrichment of light rare earth elements and Significant loss of high field and strong elements,Shows the rock characteristics in the continental and oceanic plates that have been assimilated by assimilation of volcanic rocks and crust in the island arc. The characteristics of island arc volcanic rocks are shown on the environmental structural discriminant diagram.It is speculated that it is likely to be formed in the pre-arc tension environment affected by the oceanic ridge subduction.
Close