中文摘要:胶东是我国重要产金基地，多年来已在胶北隆起寻找到破碎带蚀变岩型（焦家）和石英脉型（玲珑）金矿近千吨，近年来又在胶莱盆地东北缘找到了蓬家夼和发云夼金矿床。蓬家夼金矿床产于具有滑脱拆离性质的盆缘断裂中，发云夼金矿床则产于盆缘断裂上盘的莱阳群群砾岩层间。初步的类比认为，胶东地区的焦家式、玲珑式、蓬家夼式和发云夼式金矿是在早白垩世同一区域构造应力场下的产物，它们可能属同一矿床组合。综合信息分析表明，胶莱盆地周缘，尤其是盆地的东北缘和西北缘，蕴含着篷家夼式金矿的找矿远景。
Abstract:Being a part of Jiaoliao anteclise, Jiaodong peninsula comprises from north to south three second-order tectonic units, namely Jiaobei uplift, Jiaolai (depression) basin and Jiaonan uplift. In the past, a number of economic gold deposits were discovered in Jiaobei uplift . which can be roughly classified into altered rock type in the shattered zone ( Jiaojia type) and quartz vein type (Linglong type). In recent years, the authors discovered Pengjiakuang gold deposit and Fayunkuang gold deposit on the northeastern margin of Jiaolai basin. The Pengjiakuang gold deposit occurs in epi-basin faults with decollement segregation character on the margin of Jiaolai basin, and the orebodies are consistent with faults in attitude and distributed discontinuously along faults in lenticular forms. Individual orebodies are 300～400 m in length, 0.39~19.45 m in thickness, and have gold grade of 1.0~26.8 g/t; native gold is disseminated in silicified, phyllic or carbonatized tectonic breccia, with proved gold reserves as high as 20 t. The Fayunkuang gold deposit occurs in conglomerate of Early Cretaiccous Laiyang group on the margin of liaolai basin, and the host rocks have been extensively subjected to silicification, pyritization, sericitization, carbonatization and chloritization. Orebodies stratoid in form occur gently (dip angle 10°or so) along interlayers of conglomerate. Individual orebodies have maximum length of 400 m, oblique extension of 600~700 m and gold grade of 1.0~15.3 g/t, with gold reserves 12 t. Mining practice reveals that gold-rich pockets are also controlled by several bed-cutting faults of different attitudes. Comparative studies show that the principal ore-forming stages of Jiaojia type arid Linglong type gold deposits in Jiaobei uplift and the Pengjiakuang and Fayunkuang gold deposits on the margin of Jiaoiai basin might have exculsively occurred in Early Cretaceous. Being unexceptionally products of geological fluids formed by Late Mesozoic tectonomagmatic activities in ]iaoliao anteclise, they belong to the same ore deposit association formed in the same tectonic environment and the same period. An integrated evaluation of geological, geophysical and geochemical information on GIS platform suggests that liaolai basin is an area of fairly promising gold potential in Jiaoclong peninsula. On the northeastern and northwestern margins of this basin, in particular, there exist excellent ore-hunting prospects for Pengjiakuang type and Fayunkuang type gold deposits.
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刘玉强，杨东来，黄太岭，李军，史辉.1999.山东胶莱盆地金矿床地质特征及找矿方向[J].矿床地质,18(3):195~207.1999.Geological characteristics and ore-prospecting targets in gold deposits of Jiaolai basin, Shandong Province[J].Mineral Deposits18(3):195~207
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