Geochronology, Metallogenesis and Deposit Styles of Loei Foldbelt in Thailand and Laos PDR

洛伊火山-深成岩带位于东南亚大陆两大地壳板块之间的泰国和老挝。沿着洛伊带分布有几个矽卡岩型铜金矿床和与斑岩有关的浅成低温热液金矿床，但这些矿床在文献中没有很好的记载。这些矿床的详细成矿关系和演化也知之甚少;不知道它们是由单一的、长期存在的侵入体为中心的矿化系统还是多个/幕式矿化系统形成的。了解该带的大地构造与成矿关系对澳大利亚公司在东南亚地区的勘探有直接的帮助，研究成果也可应用于澳大利亚的铜金矿勘探。

The Loei volcanic-plutonic belt occurs in Thailand and Laos PDR between two major crustal terranes in mainland SE Asia: Shan-Thai in the west and Indochina terrane in the east. Several skarn type copper-gold and porphyry related epithermal gold deposits are distributed along the Loei belt, and yet these deposits are not well documented in the literature. Detailed metallogenic relations and evolution of these mineral deposits are also poorly understood; it is not known whether they formed from single, long-lived intrusive-centred mineralised systems or multiple/episodic mineralised systems. Understanding the geotectonic and metallogenic relations of this belt have a direct benefit to Australian companies exploring in SE Asia, and the research results also can be applied back in Australia for exploration of Cu-Au deposits.