1. Probably an outlying mass of the crystalline rocks of the Arravelli range. 2. The most picturesque outcrops of the crystalline rocks have their own names. 3. The island is made up of volcanic and crystalline rocks . 4. He was director of Sudene, training technicians in areas of groundwater in crystalline rocks . 5. Mining properties of the area lie in an oval basin surrounded by crystalline rocks . 6. Other crystalline rocks , the metamorphic rocks such as marbles, mica-schists and quartzites, are recrystallized. 7. Its crystalline rocks form a towering wall dotted with snow-covered volcanoes that is long. 8. The Lamar River Formation unconformably lies upon Paleozoic sedimentary rocks and Precambrian crystalline rocks . 9. It consists of crystalline rocks and has a summit capped with sandstone trap or laterite. 10. By comparison, weathered and fractured crystalline rocks yield smaller quantities of groundwater in many environments.
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