Types of rocks 0.0 / 5 ? GeologyRocksAll LevelsAll boards Created by: ChristinaCreated on: 21-01-14 10:24 3510821649 Across 1. Formed from the solidification of molten rock material. There are two basic types (7) 4. Formed by the accumulation of sediments (11) 8. A clastic sedimentary rock defined by its grain size (9) 9. A volcanic rock of mafic composition (6) Down 2. A sedimentary rock composed of clay and muds (8) 3. A sedimentary rock formed from clay (9) 4. A low grade metamorphic rock formed from shale or silts (5) 5. A sedimentary or tectonic rock composed of fragments of other, broken rocks (7) 6. A metamorphosed limestone (6) 10. These rocks can be modified by heat, pressure and chemical process usually while buried deep below Earth's surface. (11)
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