摘要
本文论证了程潮矿区及外围三叠系蒸发岩的存在,并指出鄂城杂岩体的物质成分和产出形态乃是受三叠系蒸发岩的控制;进而从矿体形态、矿化蚀变及硫同位素组成特征等方面论述了三叠系蒸发岩对铁矿化的控制作用,同时用前人盐水-岩反应的实验结果加以解释。
Study of the Triassic system of Chengchao,Majiao and Puqi proves the existence of evaporite in the upper part of the lower Triassic Da Ye Group. A discussion is made on the geological features of Echeng Complex which is closely related to the iron ore deposits and their relationship with the eva- porite,and on the iron ore,karstenite and wall rock alteration as well. By analysing the geological features of sulfur isotopes,iron ore bodies, and karstenite,the author arrived at the conclusion that it is the evaporite in Da Ye Group that controls the iron mineralization.The author also explai- ned the physical and chemical process of mineralization by brine water/rock reaction experiments.
出处
《地质力学学报》
CSCD
1993年第1期163-176,共14页
Journal of Geomechanics
