The Rock Cycle & Classification of Rocks The rock cycle is the formation‚ breakdown and reformation of a rock as a result of sedimentary‚ igneous‚ and metamorphic processes. The rock cycle is an illustration that is used to describe how the three rock types are related and how Earth processes change a rock from one type to another over time. Each group contains a collection of rock types that differ from each other on the basis of the size‚ shape and arrangement of mineral grains. Due to the driving
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At a granular level‚ rocks are composed of grains of minerals‚ which‚ in turn‚ are homogeneous solids formed from a chemical compound that is arranged in an orderly manner. The aggregate minerals forming the rock are held together by chemical bonds. The types and abundance of minerals in a rock are determined by the manner in which the rock was formed. Many rocks contain silica (SiO2); a compound of silicon and oxygen that forms 74.3% of the Earth’s crust. This material forms crystals with other
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TERMS AGATE: an ornamental stone consisting of a hard variety of chalcedony‚ typically banded in appearance. AGENTS OF METAMORPHISM: heat‚ pressure‚ chemicals AGENTS OF TRANSPORTATION: wind‚ ice‚ water AMPHIBOLE: any of a class of rock-forming silicate or aluminosilicate minerals typically occurring as fibrous or columnar crystals. ANDESITE: a dark‚ fine-grained‚ brown or grayish volcanic rock that is intermediate in composition between rhyolite and basalt. ANTHRACITE: coal of a hard
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WHAT ARE ROCKS? What are Rocks? Making up most of the Earth’s crust‚ rocks are usually defined as a mixture of common minerals. Rocks can be hard or soft‚ as small as a grain or as large as a building. Combined with the effects of weathering and vegetation (vegetation can also weather rock as the tree or bush is "yanked" out of the ground by forces of wind or by merely falling over after it has died. Root systems tend to go under the surface and attach themselves to
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Associate Level Material History of Rock Worksheet Leah Bechtel 12/09/2012 SCI/245 Robert Dillon Write a 500- to 750-word explanation regarding the role of plate tectonics in the origin of igneous rocks. The role of plate tectonics in the origin of igneous rock is extremely important. Igneous rock is formed from magma that reaches the continental and oceanic crust or through hot spots that are around the world. There are three different places where igneous rocks can form; where
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GENERAL GEOLOGY - GEOL 1113 EXAM I WITH ANSWERS - Spring 2002 Below you will find the questions and answers for Exam I in my General Geology class. The correct answer for each question is highlighted in bold face green type. While you are reviewing the exam‚ pause at the questions you find you missed and try to understand why you missed them. Really understanding this will require not only that you understand why your answer is incorrect‚ but also why you chose it in the first place. Were you confused
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Metamorphic Rock Metamorphism means to change form; this is exactly what metamorphic rocks do. This paper will take a look at the Earth’s rock cycle to examine exactly where the metamorphic rock fits into it. It will also look at how metamorphic rocks are formed and the relationship between metamorphic rocks and igneous rock and sedimentary rocks. This paper will examine the geological characteristics and materials of metamorphic rocks‚ and examine some examples of metamorphic rocks and will describe
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My Whitewater Rafting Experience The unforgiving water rushes past the boat‚ waiting for a false move. Called a class 5‚ this rapid looks more like a class 6 with the water as low as it is. Six to ten foot swells come crashing down from time to time keeping the crew sharp and wet. To the right‚ a thousand-foot wall of stone reaches for the sky‚ yearning for the omnipresent. The canyon walls look as smooth as silk‚ yet upon contact are as coarse as sandpaper. Quartz crystals glisten in the
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Dr. Hinzman avoided every blow except for a quick one to the ribs. As he dodged swings of the sword‚ amson began to uncharitably worry. One shot‚ one slow reaction‚ and as the good old John Schist would say‚ you’re donzo’s. After slicing through everything nearby‚ couches desks tables Dr. Hinzman began to slow. His stomach wound was causing great pain. Detora dodged another swing and went in to end it with his hidden blade just to have it sliced
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The Alpine Fault Investigate the evidence relating to geological event(s) Micheal Munro AS91412 Intro The Alpine fault is the boundary of the Pacific oceanic plate and the continental Australian plate. It is located almost through the entire south island of New Zealand extending about 600 Km across it1. It is one of the world’s major geological features and is responsible for the amazing Southern Alps. Each time it has ruptured it has moved both vertically as well as horizontally. Some believe
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