辽宁省盖州市大东沟地区金矿床地质特征及找矿方向
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摘要
辽宁省盖州市大东沟地区金矿位于分水—华铜金、多金属成矿带中部,矿床成因属于沉积变质改造～热液蚀变岩型。在勘查区中部利用已往物化探成果,圈出8处Au异常浓集区、7处磁异常区,二者异常的叠加区主要位于达子堡—沙和尚沟一带,总体呈北西向展布,面积大,具有较好的找矿前景,与含金构造蚀变岩带有较好的吻合性。矿石中主要矿石矿物为黄铁矿、白铁矿、磁黄铁矿,少量毒砂,黄铜矿微量。金矿物赋存状态以包裹金、粒间金和裂隙金三种状态分布。
The gold deposit in Dadonggou area of Gaizhou City, Liaoning Province is in the middle of the FenshuiHuatong gold and polymetallic metallogenic belt. The genesis of the deposit belongs to sedimentary metamorphismhydrothermal alteration. In the middle of the exploration area, the results of the previous geochemical exploration were used to circle 8 Au anomalous areas and 7 magnetic anomaly areas. The superimposed areas of the two were mainly located in Dazibao-Shaheshanggou area, which were generally distributed in the northwest direction. It has a large area and has a good prospecting prospect, and it has good compatibility with gold-bearing structural altered rocks. The main ore minerals in the ore are pyrite,Marcasite, pyrrhotite, a small amount of arsenopyrite and trace amounts of chalcopyrite. The state of gold minerals is distributed in three states: inclusion gold, intergranular gold and fissure gold.
The gold deposit in Dadonggou area of Gaizhou City, Liaoning Province is in the middle of the FenshuiHuatong gold and polymetallic metallogenic belt. The genesis of the deposit belongs to sedimentary metamorphismhydrothermal alteration. In the middle of the exploration area, the results of the previous geochemical exploration were used to circle 8 Au anomalous areas and 7 magnetic anomaly areas. The superimposed areas of the two were mainly located in Dazibao-Shaheshanggou area, which were generally distributed in the northwest direction. It has a large area and has a good prospecting prospect, and it has good compatibility with gold-bearing structural altered rocks. The main ore minerals in the ore are pyrite,Marcasite, pyrrhotite, a small amount of arsenopyrite and trace amounts of chalcopyrite. The state of gold minerals is distributed in three states: inclusion gold, intergranular gold and fissure gold.
引文
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[3]张朋,赵岩,寇林林,等.辽东猫岭金矿床S-Pb同位素特征及其地质意义[J].地质论评,2017,63(S1):175-176.
[4]刘军,王树岭,李铁刚,等.辽宁省五龙金矿床成岩成矿年代学及同位素地球化学特征[J].矿床地质,2018,37(04):712-728.
[5]张森,张迪,沙德喜,等.辽东林家三道沟—小佟家堡子地区金(银)矿成矿特征及成因[J].吉林大学学报(地球科学版),2012,42(03):725-732.
[6]郝立波,赵昕,赵玉岩.辽宁白云金矿床稳定同位素地球化学特征及矿床成因[J].吉林大学学报(地球科学版),2017,47(02):442-451.
[7]王可勇,万多,刘正宏,等.辽宁丹东四道沟金矿床构造控矿规律及其机制分析[J].吉林大学学报(地球科学版),2011,41(04):1048-1054.
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