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Discussion on the Granitic miarolitic Caves and Genesis of Natural-Mortarsinthe Mount Laoshan, China
详细信息   
摘要

The authors have carried out detailed field investigations of the Mount Laoshan,Qingdao,which is composed of Late Mesozoic miarolitic granites with its prominent peak height 1 133 meters above sea level and is located on the shore of the Yellow Sea,China.From the investigation,the authors conclude that:1)the development of miarolitic granites is bound to affect the micro-landforms particularly in the case of large miarolitic caves occurring,and it must be regarded as the first and non-ignorable factor for analyzing the genesis of natural-mortar in the Mount Laoshan;2)the shape,size and distribution of several large miarolitic caves in the Mount Laoshan are similar to natural-mortar;3)the formation of natural-mortar in the Mount Laoshan can be fully explained by erosion and destruction of miarolitic cave,which was reformed by weathering and other external geologic forces,but not by so-called glacial potholes;4)“miarolitic granite” and “natural-mortar” in the Mount Laoshan exists some possible links,so that it deserves  further study.

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