胶莱盆地东北缘郭城—崖子地区位于牟平-乳山金成矿带南段，是胶东地区重要的金成矿区，近年来陆续探明蓬家夼、土堆-沙旺、西井口、辽上、西涝口、前垂柳等中型-大型金矿床，累计探获金资源量超过180 t。在地质填图、含矿构造调查、可控源音频大地电磁测深（controlled source audio-frequency magnetotelluric sounding, CSAMT）、钻探工程等野外工作的基础上，对矿体分布、物探特征、控矿构造和成矿规律进行分析，初步明确蓬家夼拆离断裂的西延位置，从西井口-辽上，向西延伸到郭城断裂，为蓬家夼、西井口、西涝口、前垂柳、辽上等金矿的控矿构造。鹊山变质核杂岩及其拆离断裂为该区金成矿作用的主要控矿构造及有利赋矿空间，是今后的勘查找矿工作中重要找矿靶区。该地区金矿集区的成矿深度主要为5.01 ~ 7.93 km，金矿床整体刚被剥蚀出来，深部及外围具有良好的找矿潜力。

The Guocheng-Yazi area in the northeastern margin of the Jiaolai Basin is located in the southern section of the Muping-Rushan gold metallogenic belt. It is an important gold metallogenic area in the Jiaodong region. In recent years, medium-sized and large-scale gold deposits such as Pengjiakuang, Tudui-Shawang, Xijingkou, Liaoshang, Xilaokou, and Qianchuiliu have been successively explored. The cumulative amount of gold resources explored exceeds 180 t. Based on the field work of geological mapping, ore-bearing structure investigation, controlled source audio-frequency magnetotelluric sounding (CSAMT) and drilling engineering, the distribution of ore bodies, geophysical characteristics, ore-controlling structure and metallogenic regularity were analyzd. The western extension position of the Pengjiakuang detachment fault was preliminarily clarified. Extending westward from the Xijingkou to the Liaoshang to the Guocheng fault, which is the ore-controlling structure of Pengjiakuang, Xijingkou, Xilaokou, Qianchuiliu, Liaoshang and other gold deposits. The Queshan metamorphic core complex and its detachment faults are the main ore-controlling structures and favorable ore-forming spaces for gold mineralization in this area, and are important prospecting targets in future exploration and prospecting work. The mineralization depth of the gold deposit concentration area in this area is mainly 5.01 ~ 7.93 km, and the gold deposit has just been eroded as a whole. The deep and peripheral areas have good prospecting potential.