Earth Science Rocks Essay

Word Count: 256 The 8 most common elements in the earth's crust are Oxygen, Silicon, Aluminum, Iron, Calcium, Sodium, Potassium, ; Magnesium. They compose 98.5% of the total crust. A mineral occurs naturally, is a soli, inorganic, has chemical composition and a crystalline structure. Native minerals are single elements. Compounds are 2 or more. There are more compound than native. You can identify minerals by color, streak, luster, hardness, cleavage, and fracture. Minerals form by magma erupting and forming lava then cooling. They can also form by evaporation of water containing dissolved ions. Silicates are the most common group of...

Jaskaran Pannu005/ ElizabethEarth System Science Earth system refers to the earths interacting physical, biological, and chemical processes. The system consists of land, oceans, atmosphere and poles. The earth system has four spheres, including the geosphere, the hydrosphere, the atmosphere, and the biosphere. The geosphere refers to the solid parts of the earth system, including earth’s rocky crust, mantle, and the metallic core. Within the geosphere is the lithosphere, which only refers to the uppermost layers of solid earth. The uppermost layers of solid earth are the oceanic and continental crust rocks. Just below the crust is the mantle, which is...

Principals of Earth Science Essay Lab 4 8) Basalt is a mafic rock and aphanitic, it is mosaic of microscopic crystals, has dull luster and smoother surfaces. Created from rapid crystallization of magma, at or near the surface or in chilled margins. 9) Gabbro is also a mafic rock and phaneritic, consist of mosaic of large, macroscopic crystals, shiny luster and rough surfaces. It is formed by slow crystallization of magma at considerable depth below the surface. 10) Felsite (rhyolite) is felsic and aphanitic, is made of mosaic of microscopic crystals, dull luster and smoother surfaces. Formed from rapid crystallization...

Question Answer What is the order that sedimentary rocks form. Compaction, Erosion, Cementation, Deposition. The order that sedimentary rock forms is: Erosion; Deposition; Compaction; Cementation. What is erosion? Wind or Rain wash away soil, sand or wears down rocks. What is Deposition? When wind or rain slows down the particles that wear away settle and build up. They get deposited in one location and build up. What is Compaction? It is when layers and layers of particles build up and over time become compacted by the weight of the layers. What is cementation? cementation is when dissolved minerals crystallize and...

APES- FGeology120,000 years ago ice began to form at a rapid pace in northernCanada(Grette, www.biomass.umass.edu). This sheet quickly (on a geologicscale) swept down the eastern seaboard and engulfed the northeast down topresent day Long Island, New York in a sheet of solid ice. This ice-sheetlater in history became known as the Laurentide ice-sheet, named after theregion in Canada in which it made its descent(Oldale,http://pubs.usgs.gov). Little did anything know back then that it wouldhave had such a profound impact on a region as it did on the northeast.Particularly in Massachusetts' case we owe the ice-sheet for giving it thedistinctive "flexed armed"...

Historical Geology Essay of The Permian Basin One of the largest oil producing areas of the world is located in West Texas. This area is known as the Permian Basin. Most of the oil is being produced from rocks formed in the Permian Period. The largest amounts of these rocks are located in the Permian Basin and southeastern New Mexico.That is why this area is known as the Permian Basin. The main features of the Permian Basin was formed in the early part of the Paleozoic area but it wasn't until the Mississippian and Pennsylvanian Periods that the folding occurred...

How Are Mountains Formed?Mountains are formed over long periods of time by forces of the earth. Mountains just don't appear in any place. Most are formed when plates, or huge pieces of the Earth's crust, pull and push against each other. Greatmountain ranges are formed by the movement of tectonic plates. Convectioncurrents deep in the mantle of the earth, begins to well up towards thesurface. As the pressure increases, it sets the crustal plates in motion.There are different kinds of mountains - Volcanic, Folded, Fault-block, andDome mountains. Volcanic mountains are formed when magma comes upthrough cracks in the Earth's crust...

TermDefinition Plate tectonics the theory that Earth's outer layer is made up of large, moving pieces called tectonic plates; the theory explains how plates interact and how those interactions relate to processes such as earthquakes and mountain building Crustal features include those expressed on the surface, (such as mountains, rivers, and lakes) as well as those not as visible (such as volcanic feed pipes, earthquake fault lines, Geological formations, and aquifer formations.) Tectonic plates a block of lithosphere that consists of the crust and the rigid, outermost part of the mantle Oceanic crust the relatively thin part of the earth's...

TermDefinition atmosphere the blanket of gas on the surface of Earth condensation the opposite of evaporation. Occurs when a gas is changed into a liquid evaporation the process where a liquid, in this case water, changes from its liquid state to a gaseous state deposition water vapor changes into ice without going through the liquid phase evaportanspiration the process of transferring moisture from the Earth to the atmosphere by evaporation of water and transpiration from plants inflitration process where rain water soaks into the ground through the soil and underlying rock layers percolation movement of water through the soil and...

Science; Rainforests and Earth The Tropical Rainforests of the World In this term paper, I will explain the great importance of the tropical Rainforests around the world and discuss the effects of the tragedy of rainforest destruction and the effect that it is having on the earth. I will talk about the efforts being made to help curb the rate of rainforest destruction and the peoples of the rainforest, and I will explore a new topic in the fight to save the rainforest, habitat fragmentation. Another topic being discussed is the many different types of rainforest species and their uniqueness...