CAJ | 학술논문

在对湘南中生代区域成矿构造进行研究的过程中发现了热柱三叉断裂构造，认为这种构造是燕山早期地幔对流活动在岩石圈形成的一种构造型式。其主要证据包括：湘南有色金属矿床呈3个不同方向的线状分布；其交汇中心与湘南穹窿构造中心吻合；构造系统中矿床和成矿岩体具有同时性。已有花岗岩和火山岩的地质、地球化学研究表明，燕山期华南深部存在地幔活动，这为湘南发育热柱三叉断裂构造提供了深部构造背景支持。三叉断裂构造型式的发现和认识为湘南成矿作用和成矿规律研究提供了新的构造模型。
재대상남중생대구역성광구조진행연구적과정중발현료열주삼차단렬구조，인위저충구조시연산조기지만대류활동재암석권형성적일충구조형식。기주요증거포괄：상남유색금속광상정3개불동방향적선상분포；기교회중심여상남궁륭구조중심문합；구조계통중광상화성광암체구유동시성。이유화강암화화산암적지질、지구화학연구표명，연산기화남심부존재지만활동，저위상남발육열주삼차단렬구조제공료심부구조배경지지。삼차단렬구조형식적발현화인식위상남성광작용화성광규률연구제공료신적구조모형。
The mesozoic metallogenesis and tectonics in southern Hunan, China, were studied, and a triple junction was found. It is a tectonic pattern in lithosphere and its forming mechanism may be attributed to mantle convection in early Yanshanian. The main evidences for triple junction are shown as follows: the nonferrous metal deposits in southern Hunan distribute in line style in three directions; convergence center of distribution lines of nonferrous metal deposits coincide with the centre of southern Hunan dome;these deposits and their hosting granites in the triple junction system are isochronic. Geological and geochemical studies on the granite and volcanics indicate that there exist mantle activities in deep crust of southern China, which is a deep tectonic background support to the triple junction developed in southern Hunan. The finding and viewpoint of triple junction tectonic pattern in southern Hunan bring out a new tectonic model to discuss metallogenesis and its rules in this area.