板块构造对海相钾盐中微量金属矿床分布与成矿模式的控制

Control of Plate Structure on the Distribution and Metallogenic Model of Trace Metal Deposits in Marine Potassium Salts

海相钾盐形成于远古的海相蒸发盆地,在漫长的成盐过程中吸收了丰富的微量金属元素,板块构造运动促进了富集与成矿.表生矿床主要沉积于陆壳板块上的陆表海盆地中,其沉积受制于全球板块运动,具体影响表现在板块的规模、边界特征等的控制作用.通过研究板块构造的运动类型和轨迹,总结出对海相钾盐中微量金属矿床的控制作用,有助于判断矿床的分布范围,推断其成矿模式,为勘探和储量评估提供研判依据.

Marine potassium salt was formed in the ancient marine evaporation basin.During the long process of salt formation,abundant trace metal elements were absorbed.Plate tectonic movement promoted enrichment and mineralization.The supergene deposits are mainly deposited in the epicontinental sea basins on the continental crust plate,and their deposits are controlled by the global plate movement.The specific effects are manifested in the control of plate size and boundary characteristics.By studying the movement types and trajectories of plate tectonics,the controlling role of trace metal deposits in marine potassium salts is summarized,which is helpful to judge the distribution range of deposits,infer the metallogenic model,and provide a basis for exploration and reserves evaluation.