PDF-Sedimentary Rocks, Processes, and Environments

Sedimentsare loose grains and chemical residues of earth materials which include things such as rock fragments mineral grains part of plants or animals and rust oxidized iron All sediments have. CLAYS. But why clay-. It is important to know where we are coming from , since the course of study in MNA/IMACS centers on clay and clay minerals basically. How are . clays . formed. Clays are formed from weathering of silica rich rocks . 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. 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.. TENTH EDITION. H A R O L D L. L E V I N. © 2013 JOHN WILEY & SONS, INC. ALL RIGHTS RESERVED.. The Sedimentary Archives . Chapter 5 . 2. Factors affecting Sedimentary Characteristics . Tectonic setting . 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?. Mud Cracks in Rock. Current Environment. What is a Depositional Environment?. All rocks form in specific environments. An example of this that we talked about earlier are igneous rocks which are going to form in a volcanic area. So it you find a layer of igneous rock, you know that area once experienced volcanism. . What do rocks look like?. Is this what you thought of?. Or this?. OR THIS????. OR…. THIS!!!!. Rocks can be small or big!. We are going to learn 3 different rocks and how they are made!. Igneous Rock. 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?. Rocks are classified by how they are formed, their composition, and texture. Rocks change over time through the rock cycle. TYPES OF ROCKS. ROCKS ARE DIVIDED INTO THREE GROUPS BASED ON HOW THE ROCKS . 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 . and . Stratigraphy. 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.. . 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. . 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 . 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.