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Download Types of Rocks Type of Rock Igneous Metamorphic Sedimentary
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Journal 6 – Types of Rocks Type of Rock Igneous Formed when rocks have changed due to a great deal of heat and pressure or by hot watery fluids. How are IntrusiveFoliated – they formed inside when mineral classified the earth from grains line up magma in parallel layers Extrusiveformed above Nonfoliatedthe earth’s when mineral surface from grains do not lava line up in parallel layers How are they formed Formed when material melts becomes magma or lava and cools Metamorphic Sedimentary Formed when sediments are compacted, pressed or cemented together due to pressure Detrital Sedimentary – made from broken fragments of other rocks Chemical Sedimentary – when dissolved minerals come out of a solution or when liquid evaporated. Organic Sedimentary – made from the cementation/compa ction of the remains of once living things Examples Intrusive – granite Extrusivepumice & obsidian Foliatedgranite changes to gneiss & shale changes to slate Nonfoliatedlimestone changes to marble & sandstone changes to quartz Detrital Sedimentary – Shale & Sandstone Chemical Sedimentary – Limestone & Rock Salt Organic Sedimentary – Chalk & Coal
