CLASSIFICATION OF SEDIMENTARY ROCK Sedimentary rocks are classified according to two(2) major classes known as: • Clastic (detrital) Sedimentary Rocks • Chemical Sedimentary Rocks Clastic (detrital) Sedimentary Rocks 1. Made up of mineral grains‚ fragments of other rocks (called lithic fragment)‚ shells and other inorganic(hard) of formally living organisms. 2. The clastic particles or grains in a sedimentary rocks are cemented together by mineral precipitates that formed during the
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Sedimentary rocks are rocks that are formed when particles of minerals or organic organisms are turned into solid rock due to pressure. There are three main types of sedimentary. The first is detrital rocks‚ which are formed by sediments from pre-existing sedimentary rocks that have been grated off from wind or water erosion then have found their way way to a water source such as a river‚ lake‚ or ocean. Once they have made it to the water source they are put under pressure due to the weight of
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Assignment: Sedimentary Rocks * Where do sedimentary rocks originate? Sedimentary rocks are the most common rock on earth. Sedimentary rocks form at‚ or very near‚ the Earth’s surface where rocks particles transported by wind‚ water and ice are deposited on dry land‚ on the beds of rivers and lakes and in marine environments: beaches‚ deltas and the sea (Sedimentary Rocks‚ 2001). The earth surface is constantly moving‚ materials are continually being deposited through various parts of the
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Carbonate Rocks and Dunham’s Classification Palkowski‚ Daniel N. 245-002 General Geology Dr. Wayne Schlipp 9 December 2007 Abstract The following contains a compendium of research on carbonate rocks. Displayed are a basic description of carbonate rocks‚ depositional environments‚ mineralogy‚ ancient and modern reefs‚ diagenesis‚ facies analysis‚ and classification. Most carbonate rock classification schemes take into account characteristics that may require intensive microscopic
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Sedimentary rocks in Pakistan range in age from Precambrian to Miocene i.e from oldest to youngest on the geological time scale form 542 million years to latest. Luckily for geoscientists all of them are exposed in different parts of the country. Lithologically they constitute sandstone‚ limestone‚ shale and mixed lithologies of them all. These rocks are exposed all along the mountain ranges from Islamabad in north to Karachi in the south. Igneous rocks are exposed north of Peshawar or only at
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SEDIMENTARY ENVIRONMENTS REGIONS OF SEDIMENT ACCUMULATION: A. Continental/Terrigenous/Non-Marine B. Transitional (shoreline) C. Marine CONTINENTAL/TERRIGENOUS/NON-MARINE ENVIRONMENTS a. Alluvial Fans - cone-shaped deposits of coarse stream sediments‚ sheet flood deposits‚ and debris flows that form where a narrow canyon stream suddenly disgorges into a flat valley. TECTONIC SETTING: rifting continental grabens‚ foreland basins‚ collisional overthrust mountain belts‚ or other highlands
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Associate Level Material Sedimentary Rock Worksheet Use the following table to describe and distinguish between the effects of weathering and erosion. Each response must be at least 200 words. |Effects of Weathering |Effects of Erosion |What are the Differences? | |Weathering is a multifaceted contact of |Soils that are removed naturally by living |As stated before‚ weathering is based on | |biological‚ physical‚ and chemical
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Three Types of Rocks: There are three types of rocks and these three types of rocks are igneous‚ metamorphic‚ and sedimentary. These rocks all form differently. These rocks all can be made into another type of rock but they all are different and have probably been many different types of rocks. Igneous rocks form from cooling lava or magma. Igneous rocks that cool from lava have a much shorter cooling time than rocks that cool from magma‚ this is because magma is underneath the earths surface
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Associate Level Material Sedimentary Rock Worksheet Use the following table to describe and distinguish between the effects of weathering and erosion. Each response must be at least 200 words. |Effects of Weathering |Effects of Erosion |What are the Differences? | |Weathering breaks down and decomposes |Erosion removes materials from the surface |The difference between weathering and | |rocks. There are chemical and mechanical
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Rocks are classified in order to communicate information about them. All classifications of limestones are arbitrary and they frequently overlap or do not fit ones particular needs. Since binocular microscopes or hand lenses are the tools that are commonly available to the explorationist‚ a practical classification should be based on descriptions using them. When these instruments are used‚ it is usually possible to identify the individual grains forming the rock. Thus most classifications require
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