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华北地区产于“G”层铝(粘)土矿中的主要铝矿物为一水硬铝石,并认为它是由三水铝石脱水相变而成。近年来,随着地质工作的深入和研究方法的日臻完善,三水铝石曾有所发现。去年我们在巩县小关地区本溪组含铝岩系下部粘土矿中(K_(2-3))亦发现有三水铝石存在。其生成当与表生地质作用有密切关系。在此将有关初步研究结果公诸同好,敬祈赐教。一、地质简述剖面位于巩县小关南岭矿区采矿场南侧,其岩性序列如图1所示:
The main aluminum mineral in North China, which is produced in the “G” layer of aluminum (clay), is diaspore and is believed to be formed by the dehydration of gibbsite. In recent years, with the deepening of geological work and research methods are improving, gibbsite has been found. Last year, we also found gibbsite in the lower clay mineral of the Benxi Formation in the Xiaoguan area of Gongxian (K_ (2-3)). Its formation and epigenetic geological effects are closely related. Here are some of the results of the preliminary research on the same public, please enlighten me. First, a brief geological profile Profile section is located in Gongxian small mining Nanling mining area on the south side of the lithological sequence shown in Figure 1: