PPT-UNIT – 2 Detrital Sedimentary Rocks

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 . Sedimentary rocks cover ~ 75% of Earth’s surface. ~ 5 % (by volume) of Earth’s outer 10 miles. Contain evidence of past environments:. Important resource. Coal, oil, and other fossil fuels. Groundwater resources. . 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. 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. . 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 . What You Will Learn. Describe the origin of sedimentary rock. . Describe the three main categories of sedimentary rock. . Describe three types of sedimentary structures. . Where does Sand come from?. Sedimentary rocks form in 1 of 3 ways:. 1. . Clastic. Sedimentary Rocks- made of pieces and grains of other rocks. Material such as . sand . or . mud. -usually deposited in . water. Conglomerate sandstone. Interpreting detrital zircon provenance in the context of regional stratigraphic and tectonic models: an example from Late Ordovician–Early Devonian cover rocks on Ganderia, eastern Maine Allan Ludman, John Aleinikoff, Bill Devlin 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 . . 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. . 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. Mahyra Tedeschi. 1*. , . Humberto Reis. 2. , Laura Stutenbecker. 3. , Matheus Kuchenbecker. 4. , Bruno Ribeiro. 5. ,. . Vitor Barrote. 6. , Pedro Leonardo Vieira. 1. , Cristiano Lana. 2. 1. Universidade Federal de Minas Gerais, .