logging in or signing up The Rock Cycle and rocks mwarner1968 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 563 Category: Education License: All Rights Reserved Like it (0) Dislike it (0) Added: October 11, 2008 This Presentation is Public Favorites: 1 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript The Rock CycleCh 10 : The Rock CycleCh 10 Rocks and the Rock Cycle : Rocks and the Rock Cycle Magma is the parent of all rocks Three Major types Igneous “from fire” Sedimentary Metamorphic “Changed Form” Slide 3: The Rock Cycle Series of processes in which rock changes from one type to another and back again. Slide 6: Igneous Rocks Forms as Magma cools : - Igneous Rock Structures Below crust is Intrusive Intrusions- underground rock masses Batholiths over 100 square kilometers Slide 8: Stock under 100 Km2 Laccolith-domed lake of rock, forces up small mountain ranges Slide 9: Sill layer of rock formed between other layers Dikes- magma forcing it self across layers Slide 10: Extrusions Above Crust is Extrusive Volcanic neck-lava remains from interior of volcano Lava plateau-lava flows out of cracks and covers land : Texture of igneous rock Slow cooling allows large (course) crystals to form Extrusive rock will have very small crystals PorphyryPorphyry is a mix of large and small crystals : PorphyryPorphyry is a mix of large and small crystals : Rapid cooling may result in a glassy appearance obsidian, or may trap gas bubbles, pumice Obsidian : Obsidian Three Families of Igneous Rock : Three Families of Igneous Rock Granite light colored or felsic (silica) orthoclase feldspar, quartz, hornblende, and mica Granite : Granite Slide 18: Diorite medium colored, plagioclase feldspar, hornblende, augite and biotite. Little quartz Slide 20: Basalt dark or mafic (Iron) plagioclase feldspar, and augite Basalt : Basalt Slide 22: Sedimentary Rocks Sedimentary rocks are formed when sediments undergo compaction (pressure) and cementation (glue) Slide 23: 3 types Clastic, Chemical, Organic Clastic- sediments (small pieces) are carried away by wind, water or ice and left as deposits These deposits then undergo cementation and compaction Slide 24: Chemical- rocks form from minerals that have been dissolved in water Organic- rocks are the remains of living things Slide 25: Clastics Clastics are identified by the size of their sediment Conglomerate- rounded. pebble size Breccia- angular pebble size Sandstone- sand sized particles Shale- clay particles Slide 26: Conglomerate- rounded. pebble size Conglomerate : Conglomerate Slide 28: Breccia- angular pebble size Breccia : Breccia Slide 30: Sandstone- sand sized particles Sandstone : Sandstone Slide 32: Shale- clay particles Shale : Shale Slide 34: Chemical Some minerals precipitate due to a change in temperature, limestone Evaporates-left behind when water evaporates gypsum, halites Limestone : Limestone Rock salt and Gypsum : Rock salt and Gypsum Slide 37: Organic Coal-formed from plants being buried then compacted Organic limestone-shells from clams, coral, oysters and plankton form limestone Coal : Coal Organic Limestone : Organic Limestone Slide 40: Features Stratification-layer representing conditions when formed. cross-bedding Ripple marks and mud cracks Fossils Concretions precipitated minerals build up around existing rocks Concretion : Concretion Slide 42: Metamorphic rocks Rock may change because of exposure to heat and pressure, or have minerals dissolved or added Two types metamorphism Contact (direct) Regional (Barrovian) Slide 44: Classification Foliation metamorphic rock has visible stripes Can be formed when crystals are pushed into parallel bands or minerals of different densities separate into bands Schist : Schist Slide 46: Banding Minerals form into district lines, Requires more heat and pressure than foliation Both take flat minerals like mica and force them into bands Gneiss : Gneiss Slide 48: Example of formation Slate, schist and gneiss Slate comes from shale More heat and pressure turn slate in schist Schist transforms into gneiss Slide 49: Unfoliated Have no bands Formed from rocks with one mineral Quartzite formed from sandstone Marble formed from limestone Slate : Slate Quartzite : Quartzite Marble : Marble Images from about.geology.com : Images from about.geology.com You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
The Rock Cycle and rocks mwarner1968 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 563 Category: Education License: All Rights Reserved Like it (0) Dislike it (0) Added: October 11, 2008 This Presentation is Public Favorites: 1 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript The Rock CycleCh 10 : The Rock CycleCh 10 Rocks and the Rock Cycle : Rocks and the Rock Cycle Magma is the parent of all rocks Three Major types Igneous “from fire” Sedimentary Metamorphic “Changed Form” Slide 3: The Rock Cycle Series of processes in which rock changes from one type to another and back again. Slide 6: Igneous Rocks Forms as Magma cools : - Igneous Rock Structures Below crust is Intrusive Intrusions- underground rock masses Batholiths over 100 square kilometers Slide 8: Stock under 100 Km2 Laccolith-domed lake of rock, forces up small mountain ranges Slide 9: Sill layer of rock formed between other layers Dikes- magma forcing it self across layers Slide 10: Extrusions Above Crust is Extrusive Volcanic neck-lava remains from interior of volcano Lava plateau-lava flows out of cracks and covers land : Texture of igneous rock Slow cooling allows large (course) crystals to form Extrusive rock will have very small crystals PorphyryPorphyry is a mix of large and small crystals : PorphyryPorphyry is a mix of large and small crystals : Rapid cooling may result in a glassy appearance obsidian, or may trap gas bubbles, pumice Obsidian : Obsidian Three Families of Igneous Rock : Three Families of Igneous Rock Granite light colored or felsic (silica) orthoclase feldspar, quartz, hornblende, and mica Granite : Granite Slide 18: Diorite medium colored, plagioclase feldspar, hornblende, augite and biotite. Little quartz Slide 20: Basalt dark or mafic (Iron) plagioclase feldspar, and augite Basalt : Basalt Slide 22: Sedimentary Rocks Sedimentary rocks are formed when sediments undergo compaction (pressure) and cementation (glue) Slide 23: 3 types Clastic, Chemical, Organic Clastic- sediments (small pieces) are carried away by wind, water or ice and left as deposits These deposits then undergo cementation and compaction Slide 24: Chemical- rocks form from minerals that have been dissolved in water Organic- rocks are the remains of living things Slide 25: Clastics Clastics are identified by the size of their sediment Conglomerate- rounded. pebble size Breccia- angular pebble size Sandstone- sand sized particles Shale- clay particles Slide 26: Conglomerate- rounded. pebble size Conglomerate : Conglomerate Slide 28: Breccia- angular pebble size Breccia : Breccia Slide 30: Sandstone- sand sized particles Sandstone : Sandstone Slide 32: Shale- clay particles Shale : Shale Slide 34: Chemical Some minerals precipitate due to a change in temperature, limestone Evaporates-left behind when water evaporates gypsum, halites Limestone : Limestone Rock salt and Gypsum : Rock salt and Gypsum Slide 37: Organic Coal-formed from plants being buried then compacted Organic limestone-shells from clams, coral, oysters and plankton form limestone Coal : Coal Organic Limestone : Organic Limestone Slide 40: Features Stratification-layer representing conditions when formed. cross-bedding Ripple marks and mud cracks Fossils Concretions precipitated minerals build up around existing rocks Concretion : Concretion Slide 42: Metamorphic rocks Rock may change because of exposure to heat and pressure, or have minerals dissolved or added Two types metamorphism Contact (direct) Regional (Barrovian) Slide 44: Classification Foliation metamorphic rock has visible stripes Can be formed when crystals are pushed into parallel bands or minerals of different densities separate into bands Schist : Schist Slide 46: Banding Minerals form into district lines, Requires more heat and pressure than foliation Both take flat minerals like mica and force them into bands Gneiss : Gneiss Slide 48: Example of formation Slate, schist and gneiss Slate comes from shale More heat and pressure turn slate in schist Schist transforms into gneiss Slide 49: Unfoliated Have no bands Formed from rocks with one mineral Quartzite formed from sandstone Marble formed from limestone Slate : Slate Quartzite : Quartzite Marble : Marble Images from about.geology.com : Images from about.geology.com