Rocks and The Rock Cycle
3 Main Rock Types Igneous Sedimentary Metamorphic
3 Main Rock Types Igneous Sedimentary Metamorphic
Igneous EXTRUSIVE Forms when lava cools quickly on the Earths surface Forms from molten rock cooling and solidifying INTRUSIVE Magma cools slowly over millions of years deep beneath the surface
IGNEOUS---Extrusive Little or NO Crystals! Lava cools quickly on the surface, no time for crystals form Extrusive rocks can be divided into two categories based on color Dark colors black-brownred Basalt Obsidian Light colors white-graypink Rhyolite
IGNEOUS---Extrusive Little or NO Crystals! Lava cools quickly on the surface, no time for crystals to form Extrusive rocks can be divided into two categories based on color Dark colors black-brownred Basalt Obsidian Light colors white-graypink Rhyolite
IGNEOUS---Extrusive Little or NO Crystals! Lava cools on the surface so fast mineral do not get a chance to form Extrusive rocks can be divided into two categories based on color Dark colors black-brownred Basalt Obsidian Light colors white-graypink Rhyolite
IGNEOUS---Extrusive Little or NO Crystals! Lava cools on the surface so fast mineral do not get a chance to form Extrusive rocks can be divided into two categories based on color Dark colors black-brownred Basalt Obsidian Light colors white-graypink Rhyolite
Igneous EXTRUSIVE Forms when lava cools quickly on the Earths surface Forms from molten rock cooling and solidifying INTRUSIVE Magma cools slowly over millions of years deep beneath the surface
IGNEOUS---Intrusive Large Interlocking Crystals!!! Magma cools slowly over millions of years LARGE CRYSTALS FORM Intrusive rocks can also be divided into two categories based on color Dark colors blackbrown-green Gabbro Light colors white-gray-pink Granite
IGNEOUS---Intrusive Large Interlocking Crystals! Magma cools slowly over millions of years LARGE CRYSTALS FORM Intrusive rocks can also be divided into two categories based on color Dark colors blackbrown-green Gabbro Light colors white-gray-pink Granite
IGNEOUS---Intrusive Large Interlocking Crystals! Magma cools slowly over millions of years LARGE CRYSTALS FORM Intrusive rocks can also be divided into two categories based on color Dark colors black-browngreen Gabbro Light colors white-gray-pink Granite
IGNEOUS---Intrusive Large Interlocking Crystals! Magma cools slowly over millions of years LARGE CRYSTALS FORM Intrusive rocks can also be divided into two categories based on color Dark colors blackbrown-green Gabbro Light colors white-gray-pink Granite
3 Main Rock Types Igneous Sedimentary Metamorphic
Sedimentary rocks are divided into two categories Chemical Clastic Mineral are dissolved in to the water water is evaporated off and leaves behind chemical sedimentary rocks Made from eroded fragments of other rocks Examples are Halite, Limestone and Gypsum Shale Microscope grains of mud cemented together Sandstone Sand grains cemented together Conglomerate Pebble to boulder size fragments cemented together
How to make a clastic sedimentary rock Weathering and Erosion Transportation Deposition Compaction and Cementation Sedimentary Rock
3 Main Rock Types Igneous Sedimentary Metamorphic
Metamorphic rocks form from HEAT&PRESSURE Two types of metamorphism Contact Regional Rock surrounding a magma body get cooked and changes due Tectonic forces Metamorphism occurs over a large area
Contact Metamorphism Deep underground, zones of metamorphism form around the lining of magma chambers.
Regional Metamorphism Tectonic forces smash continents together causing rocks to get heated and become semi-molten. Pressure causes the dissolved minerals to separate into bands and sometime to even flow before cooling again!
Common Metamorphic Rocks Parent Rock Granite Metamorphic Rock Gneiss Shale Slate Sandstone Quartzite
The Rock Cycle