3 Types Of Rocks Essay
Comparing rocks
Minerals make up rocks. Rocks are formed in many environments upon and within the Earth's crust. There are three types of rock, each formed in a different `way. Igneous rock , formed by the cooling of magma (molten rock) inside the Earth or on the surface. Sedimentary rocks, formed from the products of weathering by cementation or precipitation on the Earth’s surface. Metamorphic rocks
, formed by temperatur e and pressure changes inside the Earth. All three types of rock make up the Earth’s lithosphere, the outermost layer. The lithosphere averages about 100 kilometers in thickness.Sedimentary rocks form at the Earth’s surface in two main ways. Clastic material (pieces of other rocks or fragments of skeletons) may become cemented together and chemical precipitation and evaporation can form sedimentary rocks. All igneous rocks began as magma (molten rock) which cooled and crystallized into minerals. Geologists classify igneous rocks based on both their crystal size and composition. Igneous rocks may look different because they may have cooled at different rates and the "mother" magma (original melted rock) was of a different composition. Variations in these two factors have created many igneous rocks. When the magma cools at different the coal cools.
Metamorphic Rocks
…show more content…
The original rock is subjected to very high heat and pressure, which cause obvious physical and/or chemical changes. Examples of these rock types include marble, slate, gneiss, schist.Metamorphic rocks can be formed from any other type of rock - sedimentary or igneous. Remember these two examples of common metamorphic rocks and where they come from: slate is formed from shale.main ways. Clastic material (pieces of other rocks or fragments of skeletons) may become cemented together and chemical precipitation and evaporation can form sedimentary
Mya Seaway Research Paper
1677 Words | 7 PagesPierre shale is a formation of marine origin from the Cretaceous period that resulted from the Western Interior Seaway. The formation stretches from New Mexico to North Dakota, is up to 700 feet thick and rests on top of the Niobrara formation. The Niobrara Formation is a geological formation that appeared around 87-82 Mya during the Cretaceous, also a result of the Western Interior Seaway. It is composed of two layers: a chalk and limestone layer. The chalk was formed due to calcium carbonate left behind by decomposed shells of microscopic algae that populated the Seaway.
Hell's Half Acre: A Case Study
722 Words | 3 PagesThe rocks are pebble to cobble sized basalt fragments. The samples collected ranged from 50mm to 120 mm. The rocks are angular. They have a gray, very fine ground mass. Fine plagioclase feldspars are visible throughout the ground mass and sparkle in the sunlight.
Nt1310 Unit 1 Assignment
624 Words | 3 Pages2 .The most significant difference between ingenious, sedimentary and metamorphic. Ingenious rocks are fire or
Cordell Formation
1484 Words | 6 PagesThe minerals were not obvious in hand sample so further mineralogical analysis would likely be needed to recognize the accessory minerals. The Cordell unit is difficult to distinguish in the field from the lower Engadine unit, the Rockview, due to the high degree of dolomitization and recrystallization. However, unlike the Rockview, the Cordell member is more thinly bedded and fossiliferous and lacks algal mats. The bottom of the Rockview dolostones appear to weather to a lighter color than that of the exposed Cordell and is considered
Sequoi Kings Canyon National Park: Geology Analysis
1195 Words | 5 Pages(Harris, 2004) The downfaulting of Death Valley is correlated with the extension of the lithosphere in the Death Valley region, which plays a part to the uplifting associated with Sequoia – Kings Canyon National Park. The Batholiths of the Sierra Nevada mountain ranges are prominent in both parks, exposing “plumbing systems” in magma chambers that fed the volcanoes. “Magmatic differentiation” involves the crystallization of a magma with magma of a different chemical composition, creating more than one type of igneous rock, which can be seen in both Yosemite and Sequoia – Kings National Parks. (Harris, 2004, 748)
How Did Water Shaped Michigan
1189 Words | 5 PagesThe water that was created from the glaciers melting carried out a great deal of the leftover debris, which was sorted into different sizes such as gravel or pebbles, sand, silt or clay. All of the leftovers started to form in layers or beds in river ways, ponds, and in lakes to form what the geologist call glacio-lacustrine formations. Glacio-lacustrine formations is just a scientific phrase for a glacier melted and the materials that had been inside the glacier deposit into the lakes and rivers created by the melted
Yosemite National Park Research Paper
1345 Words | 6 PagesIts composition consists of Half Dome Granodiorite, which consists of quartz, feldspar, hornblende, and
The Space Rock Analysis
1021 Words | 5 Pages“The Day it Rained Cats” and “The Space Rock” are great stories that will surely hook any reader the story! “The Day it Rained Cats” is about a girl named Sheera who has to overcome an obstacle, and the grandmother who must make a life-changing decision. “The Space Rock” is about a family who must make a big decision to either make millions on a meteorite, or just give it to the museum. “The Day it Rained Cats” and “The Space Rock” have very big similarities and distinct differences. One thing that is similar between “The Day it Rained Cats” and “The Space Rock”is the theme.
Informative Essay: The Grand Canyon
1389 Words | 6 PagesAnother type of layer is called the Terrestrial Fossils. In this layer there are several rock layers and fossils that form this whole layer. Some layers are called the Hermit Shale, Supai Group, Coconino Sandstone, and Surprise Canyon Formation. There are many types of fossils called leaves, Tracks, and Dragonflies.
Manchester State Park Case Study
511 Words | 3 PagesThe formation strikes 269°, and dips 41°N. The sandstone and mudstone members are typically 30-50cm thick. The sandstones are immature poorly sorted greywacke, and the mudstones
Summary Of Fire From The Rock By Sharon Draper
812 Words | 4 PagesThe book, “Fire from the Rock” by Sharon M. Draper is a historical fiction highlighting the life of an African American family during the year 1957 in Little Rock, Arkansas. Sylvia Patterson, a fifteen-year-old, is invited to be in the first group of African-Americans to integrate into the all-white school. The story follows her life leading up to, and prior that invitation. She goes through many struggles through this rough period of her life. The theme of the horrors of racism is displayed throughout the book through the character Sylvia.
Aztec Level 3 Unit 9 Study Guide
441 Words | 2 PagesThe mantle is made up of semi-molten rock called magma (lava). In the higher parts of the mantle the rock is stiff, but lower down the rock is delicate and starting
North Carolina Earthquake Research Paper
321 Words | 2 PagesWhen was the first earthquake in North Carolina recorded? The first recorded earthquake was on March 8th, 1735 near Beth. Another one on February 21st, 1774 this one was quite noticeable speaking there were some reports from Winston Salem through Virginia. How do tsunamis form?
Analysis Of Uncle Rock By Dagoberto Gilb
704 Words | 3 PagesUncle Rock by Dagoberto Gilb is a story about a young man name Erick, who meets his mother’s boyfriend or friends. In the beginning of the story, Erick and his mother is at a restaurant eating his favorite food. As Erick and his mother are eating, a man comes up to them and started a conversation. Erick notices that the man is complimenting his mother on how she looks. When they were talking in the restaurant, Erick thought about the time his mother almost game a man her name because he’ wearing a suit.
Fossil Fuels Disadvantages
1033 Words | 5 PagesFossil fuels Fossil fuels are NOT a renewable energy resource it will finish up one day As once we 've burned them all, there isn 't any more, and our consumption of fossil fuels has nearly doubled every 20 years since 1900. This is a particular problem for Oil, because we also use it to make plastics and many other products Coal, Oil and Gas are called "fossil fuels" because they have been formed from the fossilized remains of prehistoric plants and animals.
More about 3 Types Of Rocks Essay
Mya Seaway Research Paper
1677 Words | 7 PagesHell's Half Acre: A Case Study
722 Words | 3 PagesNt1310 Unit 1 Assignment
624 Words | 3 PagesCordell Formation
1484 Words | 6 PagesSequoi Kings Canyon National Park: Geology Analysis
1195 Words | 5 PagesHow Did Water Shaped Michigan
1189 Words | 5 PagesYosemite National Park Research Paper
1345 Words | 6 PagesThe Space Rock Analysis
1021 Words | 5 PagesInformative Essay: The Grand Canyon
1389 Words | 6 PagesManchester State Park Case Study
511 Words | 3 PagesSummary Of Fire From The Rock By Sharon Draper
812 Words | 4 PagesAztec Level 3 Unit 9 Study Guide
441 Words | 2 PagesNorth Carolina Earthquake Research Paper
321 Words | 2 PagesAnalysis Of Uncle Rock By Dagoberto Gilb
704 Words | 3 PagesFossil Fuels Disadvantages
1033 Words | 5 Pages