Rocks By Olivia Tremmel
What I will be covering Geologists Sedimentary,Igneous,and Metamorphic rocks Rock facts
Geologists Charles Lyell: A British lawyer and geologist Author of a book called Principles of Geology Continued James Huttons theory of the earth being shaped by rock over geological time
Geologists (continued) James Hutton: A Scottish geologist/naturalist He found out how earth was shaped by rocks His work made geology a proper science He believed that earth was alive and should be considered a super-organism
Sedimentary rock A type of rock that is formed by sediment layering on the bottoms of lakes and seas Sediment is made from plant matter,rock particles,and sand etc. Sedimentary rock covers most of earth Some are limestone, sandstone,and chalk
Igneous rock Igneous rock is formed when magma cools down and takes shape. The molecules in magma are made from pieces of igneous rock Examples:obsidian,basalt,pumice,and granite
Metamorphic rock Metamorphic rocks are normal rocks that have been changed by extreme heat and pressure They are found in the deep layers of the earth Erosion brings metamorphic rock to the surface Some are,schist,marble,quartzite,and slate
Rock facts Rocks are made by minerals,they are naturally generated On the mhos scale of hardness,diamonds are the hardest and talc is the softest There are different rock families depending on the element,example: diamond:carbon,Graphite:carbon Rocks have been used from early weapons to building houses
Conclusion I learned about geologists, I never knew about Charles Lyell and James Hutton. I picked this subject because I have a big interest in rocks and wanted to learn more.