PPT-UNIT 3 Biogenic and Chemical Sedimentary Rocks

Chemical Sedimentary Rocks In contrast to detrital rocks which form from the solid products of weathering chemical sediments derive from ions that are carried in solution to lakes and seas . http://www.beg.utexas.edu/mainweb/publications/graphics/granite.htm. http://en.wikipedia.org/wiki/File:USDA_Mineral_Sandstone_93c3955.jpg. http://www.gccaz.edu/earthsci/imagearchive/gneiss.htm. Remember the. TOPIC-. . CLASSIFICATION OF SEDIMENTARY ROCK. S. GROUP MEMBERS. 1.AYUSH KUMAR . (ROLL. 019. ). 2.SHAKTI SHEKHAR . (ROLL. 067. ). 3. SHASHI KUMAR SRIVASTAV . (ROLL. 069. ). Sedimentary rocks. Sedimentary rocks are types of . . Sedimentary Rocks. What is a sedimentary rock?. Sedimentary rocks are products of mechanical and chemical weathering. They account for about 5% (by volume) of Earth’s outer 10 miles. Contain evidence of past environments. Timing the Geologic Record. . The Stratigraphic Record. Important Principles. Original horizontality—sediments were deposited originally as horizontal beds.. Lateral continuity—beds thin and pinch out laterally.. Chemical Sedimentary Rocks. . Limestone. Chert – Silica. Evaporites. Organic Rocks. Coal. Oil and natural gas. Clastic Sedimentary Rocks. Formed from clasts (bits and pieces of pre-existing rocks) transported, deposited,and lithified. (pages 102–106). 1. Describe how sedimentary rocks form.. 2. List and describe the three major types of sedimentary rocks.. Objectives. write these down!. Sediment. Erosion. Deposition. C. ompaction. UNIT . 5. What are Sediments. Sediments are loose Earth materials (unconsolidated materials) such as sand . which are . transported by the action of water, wind, glacial ice and . gravity.. These . materials are . Sedimentary-sandstone. Metamorphic- gneiss. Igneous- diorite. 1. What is a Rock?. Naturally Occurring . (not man made). Solid. Mixture of minerals other organic matter. 2. What makes a rock different from a mineral?. Color . Texture. Light. Dark. Fine. Coarse . Igneous rocks are classified according to their. . origin. , . texture. , and . mineral composition. .. Origin . D. id it harden inside the earth or on the earth’s surface?. Rocks http://www.beg.utexas.edu/mainweb/publications/graphics/granite.htm http://en.wikipedia.org/wiki/File:USDA_Mineral_Sandstone_93c3955.jpg http://www.gccaz.edu/earthsci/imagearchive/gneiss.htm Clastic. Sediments and Sedimentary Rocks. Clastic sediments are loose materials, however when these sediments under go lithification (. diagenesis. ), they form sedimentary rocks. . Clastic sedimentary rocks are also known as . A rock is a natural substance that is made up of solid crystals of different minerals that have been fused together into a solid lump. . Rocks can be classified by their attributes: . Texture. Hardness. SEDIMENTARY ROCKS. Geo 281: geology for engineers. Geology and Geophysics Department. King Saud University. What are Sediments. Sediments are loose Earth materials (unconsolidated materials) such as sand . Do Now. 1.  What is an igneous rock?. 2. How do sedimentary rocks form?. Sedimentary Rocks -. are one of the three main rock types . A sedimentary rock can form one of three ways: . by the . deposition.