摘要
<正>世界上多数锡矿周围伴生有长英质岩浆岩,因此伴生的岩浆岩被推测为Sn元素的源岩(Lehmann,1990;?temprok,1995)。国际著名地质学家Romer(2016)教授等总结了全球锡矿研究,认为虽然富锡花岗岩形成于活动构造地带,但锡元素从源岩中运移出来需要巨量的能量输入,唯有地幔物质上涌能提供足够的能量(Romer and Kroner,2016)。因此,研究锡矿床周边的花岗岩及可能源自地幔的基性岩浆活动,对指示锡矿的形成具有重要的指示意义。中国西南地区中生代广西大厂锡矿田、云南都龙和
引文
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