胶东地区金矿成矿规律及找矿潜力和方向
摘要：矿床形成后会经历不同形式的变化，区域隆升与剥蚀是影响矿床变化保存最为关键的因素之一。构造-热年代学是目前广泛运用于研究区域隆升剥蚀的一种重要手段，本文以我国最大金矿集中区——胶东西北部金矿及赋矿围岩玲珑花岗岩为研究对象，尝试将构造-热年代学引用到矿床成矿后变化与保存研究。胶东金矿早阶段成矿深度大于10km，中晚期成矿深度4~7km，根据剥蚀速度计算玲珑花岗岩剥蚀量仅为2.0~4.2km，远未达到金矿最大成矿深度。当前本区金矿勘探和开采深度普遍小于2km，因此深部至少还有1~5km深度空间具有金矿找矿潜力。
关键词： 胶东西北部金矿区；玲珑花岗岩；裂变径迹；隆升剥蚀；找矿潜力
Abstract: after deposit formed will experience different forms of change, and erosion is the effect of regional uplift deposits changes save the most crucial factor. Structure-hot is the chronology is widely ud in rearch area denudation of uplift an important means in this paper, the country’s largest area in northwestern jiaodong gold-gold ore and fu surrounding rock and exquisite granite as the rearch object, try the structure-hot chronology reference
to the metallogenic changes after rearch and prervation. The jiaodong gold mine early metallogenic depth is more than 10 km, metallogenic depth middle-late 4 ~ 7 km, according to erosion speed computing and exquisite granite erosion amount of just 2.0 ~ 4.2 km, far from reaching a maximum depth of gold mineralization. In the current gold exploration and mining depth generally less than 2 km, so deep at least 1 ~ 5 km deep space has gold prospecting potential.
