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哈萨克斯坦阿克斗卡特大型斑岩铜矿床成矿时代与剥露历史研究/Metallogenic Age of the Super-Large Aktogai Porphyry Copper Deposit,Kazakhstan, and Its Exhumation History[J]
Authors
CHEN Wen
CHEN Xuanhua
+26 more
CHEN Zhengle
DONG Shuwen
Eleonora SEITMURATOVA
Eleonora SEITMURATOVA
HAN Shuqin
K. Satpaev Institute of Geological Sciences,Almaty, 050010, Kazakhstan Laboratory of Geological Formations
LI Yong
SHI Wei
WANG Zhihong
YANG Yi
YE Baoying
中国地质大学(北京),北京,100083
中国地质科学院,北京,100037
中国地质科学院地质力学研究所,北京,100081
中国地质科学院地质研究所,北京,100037
叶宝莹
新疆维吾尔自治区地质矿产开发勘查局第一区调大队,乌鲁木齐,830011
施炜
李勇
杨屹
王志宏
董树文
陈宣华
陈文
陈正乐
韩淑琴
Publication date
1 January 2012
Publisher
Abstract
哈萨克斯坦阿克斗卡特大型斑岩型铜矿床产在中亚成矿域巴尔喀什成矿带阿克斗卡矿田.本文根据花岗岩类岩石的锆石U-Pb、40Ar/39 Ar和裂变径迹(FT)热年代学研究,结合前人研究成果,给出了阿克斗卡斑岩铜矿床从深成岩浆活动、成矿作用、区域冷却到剥露作用的全过程.阿克斗卡矿床及附近花岗岩类锆石SHRIMPU-Pb定年结果,给出科尔达尔岩体早期英云闪长岩的结晶年龄为335.7士1.3 Ma;主成矿期的含矿二长花岗斑岩结晶年龄为327.5±1.9 Ma,反映了阿克斗卡矿床斑岩型铜成矿作用的年龄.花岗岩类角闪石、黑云母、钾长石40Ar/39Ar热年代学分别给出矿物冷却年龄为310.6 Ma、271.5 Ma和274.9 Ma,进一步限定了深成斑岩型铜成矿作用的时代和区域冷却的历史.磷灰石FT测年数据揭示,受区域构造作用的影响,阿克斗卡铜矿田在晚白垩世(91~68.0 Ma)发生地块的差异隆升和剥露作用
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Last time updated on 29/11/2016