苏皖黄泥山坡缕石粘土矿含矿层微量元素地球化学

来源期刊：中南大学学报(自然科学版)1998年第2期

论文作者：郑自立 吴延之 彭省临 陈旭

文章页码：5 - 8

关键词：坡缕石;微量元素;地球化学;江苏;安徽

Key words：palygorskite; trace element; geochemistry; Jiangsu; Anhui

摘    要：通过对江苏、安徽两省凹凸棒石粘土成矿带坡缕石含矿层微量元素地球化学研究,探讨外生条件下,特别是形成凹凸棒石粘土的强碱性介质条件下微量元素的地球化学行为:即在低温条件下,它们的化学活泼性显著减弱;它们的赋存形式除与元素的离子半径,水合半径,水合能(K/mol)有关外,还与粘土矿物的晶体结构,矿物表面电化学性质,以及外生成矿地球化学环境密切有关.

Abstract: Taking Huangnishan palygorskite clay deposit as an example, this paper studies the trace element geochemistry of ore-hosted strata in the attapulgite caly metallogenic belt in Jiangsu and Anhui Provinces. Some conclusions have been drawn on the geochemical behavior of the trace elements under exogenetic condition, specially under the strong-alkline condition of forming attapulgite clay: at low temperature, their chemical activity is weakened strikingly; their existingform is related not only to the ionic radius, hydrated radius and hydrated energy(K/mol), but also to the crystal structure and surface electrical-chemical property of clay minerals and the exogenetic-metallogenic geochemical environment.