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锁头山铁矿位于安丘市红沙沟镇锁头山,地理坐标为:东经118°54′,北纬36°14′。矿区处于华北地台的沂沭断裂带内,沂水—汤头断裂、安丘—莒县断裂之间,汞丹山断隆西北部。该矿床成因类型属于鞍山式铁矿,矿体主要赋存在泰山岩群柳杭组内。柳杭组(Ar3tL)总体呈带状NE向展布,厚约150m。岩性主要为角闪变粒岩、黑云变粒岩,夹角闪石英片岩、磁铁角闪石英岩、透闪片岩等。
The Dongtoushan Iron Mine is located in the mountainous area of Hongshagou Town, Anqiu City, with the geographical coordinates of 118 ° 54’E and 36 ° 14’N. The mining area is in the Yishu fault zone of the North China platform, between the Yishui-Tangtou fault, the Anqiu-Juxian fault, and the northwestern Hailandan fault. The genetic type of the deposit belongs to Anshan-type iron ore, and the orebodies mainly exist in the Liuhang Formation of Taishan Group. The Liuhang Formation (Ar3tL) showed a beltlike NE distribution with a thickness of about 150m. Lithology mainly horn flicker granulite, black cloud granulite, amphibole quartz schist, magnet amphibole quartzite, through the flash rock and so on.