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安家营子金矿床位于华北克拉通北部赤峰地区,所有矿体均赋存于喀喇沁变质核杂岩下盘的鸡冠子岩体内部。喀喇沁变质核杂岩的主拆离断层及其下盘岩石总共发育三期构造变形,第一期为北东向的左行韧性剪切变形(156~150 Ma);第二期为北西-南东拉升环境下的韧-脆性构造变形(134~125Ma);第三期以北西-南东向拉伸环境下的北东向拆离正断层为代表,活动时间始于121 Ma。鸡冠子岩体侵位于喀喇沁变质核杂岩下盘,结晶年龄为133±1 Ma,结晶温度介于640~691℃,侵位压力为167~
The Anjialingzi gold deposit is located in the Chifeng area of northern North China Craton. All orebodies are deposited inside the Jiguanyizonite of the lower plate of the Karahain metamorphic core complex. The main detachment fault and its subsiding rocks of the harqan metamorphic core complex develop a total of three stages of structural deformation. The first stage is the north-east left ductile shear deformation (156-150 Ma); the second stage is the northwest - ductile-brittle tectonic deformation (134 ~ 125 Ma) in the southeastern uplift; the third is represented by the NE-trending detachment normal fault in the NW-SE stretching environment, and the activity time starts at 121 Ma. The Jiguankizi intrusive is located in the lower plate of the kalaqin metamorphic core complex with the crystallization age of 133 ± 1 Ma, the crystallization temperature of 640 ~ 691 ℃, the invasion pressure of 167 ~