Most visible rock on Earth’s surface is sedimentary >>> being added to all the time by continuous weathering and erosion by wind and water. example: sandstone (formed from layers of compressed sand); conglomerate (contains rounded pebbles and small stones); shale (tiny particles of clay or silt) METAMORPHIC ROCK Igneous or sedimentary rock becomes buried at a great depth, subjected to increased temperature and pressure. moving through Earth heats and squeezes these rocks Rock may change in appearance and/or in the minerals it contains some change so much – Parent Rock Metamorphic Rock that they no longer shale (sedimentary) slate resemble the parent rock granite (igneous) gneiss limestone (sedimentary) marble sandstone (sedimentary) quartzite Granite Gneiss
Most visible rock on Earth’s surface is sedimentary >>> being added to all the time by continuous weathering and erosion by wind and water. example: sandstone (formed from layers of compressed sand); conglomerate (contains rounded pebbles and small stones); shale (tiny particles of clay or silt) METAMORPHIC ROCK Igneous or sedimentary rock becomes buried at a great depth, subjected to increased temperature and pressure. moving through Earth heats and squeezes these rocks Parent Rock Metamorphic Rock shale (sedimentary) slate granite (igneous) gneiss limestone (sedimentary) marble sandstone (sedimentary) quartzite Rock may change in appearance and/or in the minerals it contains – some change so much that they no longer resemble the parent rock Granite Gneiss
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