Microcracking and Healing in Granites: New Evidence from Cathodoluminescence

作者: E. S. SPRUNT , A. NUR

DOI: 10.1126/SCIENCE.205.4405.495

关键词:

摘要: Quartz grains in granitic rocks usually have blue cathodoluminescence (CL). Within the blue-luminescing grains, there are often red-luminescing domains which frequently impossible to detect without CL contrast. This finding suggests that quartz is sealing preexisting mnicrocracks. The presence of these now-healed microcracks has important implications with respect role pore fluid pressure and transfer metamorphism, origih granites, longperiod crustal deformation, earthquake mechanics, physical properties rocks, deep-seated geothermal energy.

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