PPT-GEY 314: Sedimentary structures

Sedimentary structures Sedimentary structures  are those structures formed during sediment deposition Sedimentary structures such as  cross bedding graded bedding mud cracks Strata. Parents as TeachersParents as Teachers Adds Five Board MembersAdd Onepreventative home visiting services in Illinois. He is one of two PAT state leader representatives on the Board.Thoseelectedare:Jul 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. (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. *Tel.:+1-314-935-9429;fax:+1-314-935-8535.E-mailaddress:gchilds@wustl.edu(G.Childs).Inthecontextofthispapertheterm OR. Strategy:. Relate sedimentary characteristics of ancient deposits (grain size, . sedimentary . structures, geometry) to features observed in modern rivers. Bedforms. during traction deposition from unidirectional flow. Geology 103. Depositional environment. Is the term given to the area where the sediment was originally deposited. Must be inferred from the rock identity. Clastic. . depositional environments. Dominated by actions of waves, tides and currents. How do chemical sedimentary rocks form?. What are biochemical sedimentary rocks?. Copyright © McGraw-Hill Education. Types of Sedimentary Rocks. Review. saturated. New. clastic . sedimentary rock. clastic. 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?. Microbial assemblages (in biofilms) form sticky films that influence sediment deposition. Microbially. -bound sediments are stabilized and more cohesive. Microbialite. : a rock formed via the influence of microbial trapping, binding, and precipitation. 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. . Kinematic analysis of deformation. B. Natalin. Structural geology and tectonics. Structural geology is the study of deformation of rocks. - we study such features as folds, faults, their geometry, movements, origins;. BSc 4. th. Semester (Open Elective). Other than Geology main students . Dr Abdullah Khan. Associate Professor. Department of Geology, AMU. Sedimentary structures. Sedimentary structures are generally three-dimensional physical features of sedimentary rocks; they are best seen in outcrop or in large hand specimens rather than through a microscope. . Sediment . Texture. Sediment texture refers to the shape, size and three-dimensional arrangement of the particles . that make . up sediment or a sedimentary rock.. Textures can be . clastic or . crystalline.