大石桥-凤城-宽甸古隆起硼矿体特征及远景推测  

BORON OREBODY CHARACTERS AND PROSPECTIVE HYPOTHESIS OF ANCIENT UPLIFT IN DASHIQIAO-FENG CHENG-KUANDIAN AREA

作　　者：杨振福 李树军 臧玉东 包德军 徐昊 

机构地区：[1]辽宁省化工地质勘查院,辽宁锦州121000

出　　处：《化工矿产地质》2010年第1期33-38,共6页Geology of Chemical Minerals

摘　　要：大石桥-凤城-宽甸硼矿体受控于华北地台东北部大石桥-凤城-宽甸古隆起构造带,元古界辽河群下部里尔峪组含硼岩系呈W-E、SW-NE向长约350km、宽60km的长条带状展布。硼矿体严格发育于里尔峪组的蛇纹石化镁橄岩或蛇纹石化富镁大理岩中,具有明显的层控和岩性控制特征,含硼岩系的厚度与矿体的关系呈正相关性,当厚度超过35m时就有可能成矿,且厚度越大,矿体的规模和矿石质量越好。辽东地区硼矿体特征,推测出后仙峪-大营子、古洞峪、二台子、牛皮闸-大西岔四个成矿远景区。Dashiqiao-Fengcheng-Kuandian boron orebody is controlled by Dashiqiao-Fengcheng -Kuandian ancient uplift structure zone of northeastern north China platform. The W- E, SW- NE banding Proterozoic boron-bearing series of Lieryu formation of lower Liaohe group is of about 350km length and 60km width. The boron orebody was host in the serpentinization forsterite or magnesium rich marble with some obvious characters including stratabound and lithology control characters, the relationship between the thickness of boron-bearing series and the orebody is direct correlation and form the ore while the thickness is over 35m. The thicker the orebody is, the bigger and better the orebody scale and quality are. 4 metallogenic prospectives had been predicted according to the boron orebody characters in eastern Liaoning province.

关 键 词：硼矿体 含硼岩系 矿体特征 远景区 

分 类 号：P619.219[天文地球—矿床学]