In recent years,the authors discovered Pengjiakuang gold deposit and Fayunkuang gol d deposit on the northeastern margin of Jiaolai basin.

• 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。