Rocks

This slide show is intended to help you understand important types of rocks. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Here is another version of the Rock Cycle http://www.volcanoworld.org/vwdocs/vwlessons/lessons/Metrocks/Metrocks2.html

http://www.volcanoworld.org/vwdocs/vwlessons/lessons/Rocks/Rocks8.html

Sedimentary Rocks Sedimentary rocks may be made of rock fragments—sediments—or by chemical reactions. The classification of sediments is shown below. http://www.volcanoworld.org/vwdocs/vwlessons/lessons/Sedrocks/Sedrocks6.html

Clastic rocks–made of cemented sediments—are classified by their grain sizes. http://www.volcanoworld.org/vwdocs/vwlessons/lessons/Sedrocks/Sedrocks9.html

Non-clastic rocks form by chemical precipitation (settling out from a solution.) Limestone is made from calcite, chert from quartz, and halite is rock salt. http://www.volcanoworld.org/vwdocs/vwlessons/lessons/Sedrocks/Sedrocks10.html

Biologic sedimentary rocks come from the remains of organic matter. ,[object Object],http://www.volcanoworld.org/vwdocs/vwlessons/lessons/Sedrocks/Sedrocks11.html

More about sedimentary rocks ,[object Object],[object Object],[object Object],http://www.volcanoworld.org/vwdocs/vwlessons/lessons/Sedrocks/Sedrocks1.html

IGNEOUS ROCKS ,[object Object],[object Object],[object Object]

Granite ,[object Object],[object Object],[object Object],http://www.volcanoworld.org/vwdocs/vwlessons/lessons/Rocks/Rocks10.html

Basalt ,[object Object],[object Object],[object Object],[object Object],http://www.volcanoworld.org/vwdocs/vwlessons/lessons/Slideshow/Igrocks/Igrock2.html

Gabbro ,[object Object],[object Object],http://www.volcanoworld.org/vwdocs/vwlessons/lessons/Slideshow/Igrocks/Igrock8.html

Obsidian ,[object Object],[object Object],[object Object],[object Object],[object Object],http://www.volcanoworld.org/vwdocs/vwlessons/lessons/Slideshow/Igrocks/Igrock7.html

Pumice and other igneous rocks ,[object Object],[object Object],For more about igneous rocks: http://www.volcanoworld.org/vwdocs/vwlessons/lessons/Igrocks/Igrocks1.html

Metamorphic Rocks ,[object Object],[object Object],[object Object],[object Object],http://www.volcanoworld.org/vwdocs/vwlessons/lessons/Metrocks/Metrocks1.html

“ Foliated” rocks contain much mica and other rocks that produce layering or banding Gneisses and schists are common in New York City and Westchester. http://www.volcanoworld.org/vwdocs/vwlessons/lessons/Metrocks/Metrocks5.html

Non-foliated metamorphic rocks include marble, which comes from limestone, and quatzite, which comes from sandstone http://www.volcanoworld.org/vwdocs/vwlessons/lessons/Metrocks/Metrocks12.html

Additional Resources ,[object Object],[object Object]

Rocks

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Rocks