CAJ | 학술논문

鄂东南地区在中生代构造体制转换引起了地幔隆起和壳幔相互作用等深部过程，作为深部过程的响应，在浅表产生了滑覆构造、隆—坳构造、盆岭构造等形迹，以及大规模岩浆活动和成矿作用。新的测年数据表明中生代大规模成岩成矿作用时期相对集中于25～30 Ma的时间跨度内，大体以137 Ma为界，可以划分为两个阶段岩浆活动和两次成矿事件。鄂东南地区深部T字形地幔隆起决定了浅部T字形隆—坳格局，并控制了T字形的铜铁矿化分带，构造岩浆演化背景的差异是本区铜铁矿化分带的决定性因素，同时基底成分的差异也是控制矿化分带格局的主要因素。建议寻找S／C界面的重点区域应放在东部和南部地区（相对隆起区）；小岩体找矿的重点方向应是北西向构造岩浆岩带，尤其与北北东向断裂的节点部位；在铁矿分布区西部（如铁山岩体西部、灵乡岩体西部）具有找寻燕山早期铜金矿床的潜力。
악동남지구재중생대구조체제전환인기료지만륭기화각만상호작용등심부과정，작위심부과정적향응，재천표산생료활복구조、륭—요구조、분령구조등형적，이급대규모암장활동화성광작용。신적측년수거표명중생대대규모성암성광작용시기상대집중우25～30 Ma적시간과도내，대체이137 Ma위계，가이화분위량개계단암장활동화량차성광사건。악동남지구심부T자형지만륭기결정료천부T자형륭—요격국，병공제료T자형적동철광화분대，구조암장연화배경적차이시본구동철광화분대적결정성인소，동시기저성분적차이야시공제광화분대격국적주요인소。건의심조S／C계면적중점구역응방재동부화남부지구（상대륭기구）；소암체조광적중점방향응시북서향구조암장암대，우기여북북동향단렬적절점부위；재철광분포구서부（여철산암체서부、령향암체서부）구유조심연산조기동금광상적잠력。
In the Southeastern Hubei Province , the Mesozoic tectonic regime transition caused deep mantle uplift and crust-mantle interaction process .As a response to the deep process ,the gliding nappe structure ,uplift-depression tecton-ic,and basin -ridge structure were appeared in superficial area .At the same time,large-scale magmatic volcanic activity and mineralization were developed .The new data indicates that the Mesozoic large scale mineralization periods are rela-tively concentrated in the time span of 25~30Ma,It can be divided into two stages of magmatism and mineralization e-vent taking 137Ma as the boundaries .The difference of tectonic evolution background of magma is the decisive factor of formation of Cu-Fe mineralization belt,and the base composition took the second role .Fininally,this contribution have commented on the important areas for prospecting at S/C interface and prospecting of small rock body .The west parts in the iron distribution areas ( such as the west Tieshan andthe west Ling xiang ) are potential area for Cu-Au deposit .