金厂梁金矿床是近年来在赤峰—朝阳金矿带东北端发现的新矿床，矿体分布于大庙二长花岗?彝饨哟ゴㄆ饺浩樵友宜榱蜒掖谋倍颉⒔飨蚨狭阎校饕事鲎床觯闪蚧锸⒙龊褪幢溲易槌桑а沂幢渲饕杌⒒铺钣⒀一⒙棠嗍透吡胪粱取Ｍü占煽笱姨迥甏А⒀沂厍蚧А⒊煽罅魈寮拔榷ㄍ凰刈柿希教至顺裳页煽笫贝⒐乖毂尘啊⒊煽笪镏世丛醇翱蟠渤梢颉３煽笱姨宕竺矶せǜ谘绎U-Pb年龄为245 Ma±1 Ma，为早印支期侵入体，Sr、Y含量表明其具有喜马拉雅型花岗岩特征，暗示大庙二长花岗岩是在地壳加厚背景下，由下地壳泥质岩等沉积岩部分熔融形成的S型花岗岩，是对华北板块和西伯利亚板块在晚二叠世末—早三叠世初沿西拉木伦河—长春一线缝合碰撞造山的响应。石英流体包裹体完全均一温度138 ℃-225 ℃，盐度1.0 %-8.1 %，密度0.86-0.97 g/cm³，表明成矿流体为低盐度、低密度成矿流体。黄铜矿δ34S为2.1 ‰-3.1 ‰，其成矿物质不是直接来自下地幔，而是源自下地壳中玄武岩等来自地幔岩石的部分熔融。金厂梁金矿床是在古亚洲洋闭合造山构造背景下形成的浅成中低温造山型金矿床；晚二叠世末—早三叠世初为古亚洲洋闭合造山期，是华北板块北缘重要的金矿成矿期。

The Jinchangliang Gold Deposit is a newly discovered deposit in the northeast part of Chifeng-Chaoyang gold metallogenic belt in recent years.The ore bodies are distributed in NE-trending and near EW-trending faults of the gneiss complex cataclastic belt of Jianping group in the outer contact zone of Damiao monzogranite.They are mostly exposed as dikes and composed of sulfide quartz veins and altered rocks.The wall-rock alterations mainly include silici-fication,beresitization,chloritization and kaolinization.By collecting the datum of chronology,petrogeochemistry,metal-logenic fluid and stable isotopes of metallogenic rock body,the diagenetic and metallogenic epoch,tectonic setting,metallogenic material source and genesis of deposit are discussed.The Zircon U-Pb age of the Damiao monzogranite is 245 Ma±1 Ma,which is an early Indosinian intrusion.The contents of Sr and Y with the characteristics of Himalayan granite,suggesting that the Damiao monzogranite is S-type granite formed by partial melting of sedimentary rocks such as pelite in the lower crust under the background of crustal thickening,which is a response to the collision orogeny of North China Plate and Siberian Plate along the Xar Moron River-Changchun line at the end of late Permian to early Early Triassic.The complete homogenization temperature of quartz fluid inclusion is 138 ℃-225 ℃,the salinity is 1.0 %-8.1 %,the density is 0.86-0.97 g/cm³,indicating that the ore-forming fluid is low salinity and low density.The δ34S of chalcopyrite is 2.1 ‰-3.1 ‰,and its metallogenic materials are not directly from the lower mantle,but from basalt in the lower crust from partial melting of the mantle rocks.The Jinchangliang Gold Deposit is a shallow medium-low temperature orogenic gold deposit formed under the tectonic setting of closed orogeny in the Paleo-Asian ocean.The closed orogenic period of the Paleo-Asian ocean is from the end of late Permian to the beginning of early Triassic,which is an important gold mineralization period on the northern margin of the North China Plate.