The Formation Age and Their Geological Significance of Gneissose Granites Neighbouring Kawabulake Area in space prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:place w:st="on"><st1:PlaceName w:st="on">Eastst1:PlaceName> <st1:PlaceName w:st="on">Tianshanst1:PlaceName> <st1:PlaceType w:st="on">Mountainsst1:PlaceType>st1:place>

详细信息   

• 责任者：Peng Mingxing (No.1 Geological Party ; BGMRED ; Changji 831100 ; China) ; Zhong Chungen
• 刊名：Xinjiang Geology
• 出版年：2012
• 卷期：30(1)
• 关键词：花岗岩 ; granite ; 天山 ; Tianshan Mountains
• 页码：p.12-18
• 图表：4 illus., 1 table, 29 refs.
• 分类号：0801
• issnNo：ISSN1000-8845
• isbnNo：CN65-1092/P

摘要

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style="MARGIN: 0cm 0cm 0pt" class=MsoNormal>The gneissose granites developed very much neighboring kawabulake area in the espace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:place w:st="on"><st1:PlaceName w:st="on">asternst1:PlaceName> <st1:PlaceName w:st="on">Tianshanst1:PlaceName> <st1:PlaceType w:st="on">Mountainsst1:PlaceType>st1:place>. According to the field characteristics, these granites can be divided into two types, namely bearing-porphyritic and non-bearing-porphyritic gneissose granites, their gneissosities formed due to reconstruction of ductile shearing. The field investigations showed that gneissose granites intruded into obviously Xingxingxia Group and/or Kawabulake Group, and were intruded into by the carboniferous granites. At the same time, the Upper Devonian strata had hardly ductile deformations in the west of the study area. So that, the time of the ductile shearing deformation can be limited between Mid-Silurian to before Dvonian period.