PPT-Chapter 4 Erosion and Deposition

Lesson 1 Water Erosion How does Moving Water Cause Erosion Erosion is the process in which sediment that has been broken down through weathering is moved Agents of Erosion are Water Wind Glacial ice. The . surface. features of the Earth change as a result of observable physical and chemical processes . Weathering and Erosion. This is a monument . called Cleopatra’s . Needle. It was carved in Egypt around 1450B.C. The sides are carved with hieroglyphs, the writing of ancient Egypt. It stood in the dry, hot Egyptian desert for over 3000 years. During that time, the hieroglyphs remained distinct.. Water Erosion. How Does Moving Water Cause Erosion?. Erosion by water begins with a splash of rain.. Some rainfall sinks into the ground.. Some evaporates or is taken up by plants.. The rest of the water runs off over the land surface.. State what is meant by the term acid deposition and outline its origins.. Discuss . the environmental effects of acid deposition and possible methods to counteract them.. . acid deposition. Acid deposition refers to the process by which acidic particles, gases and precipitation leave the atmosphere . Chapter 4.1. Pages 118-127. Key Questions. How does moving water cause erosion?. What land features are formed by water erosion and deposition?. The GREAT . BLUE. HOLE . p. 118. Where is it located?. (work funded through the Great Lakes Restoration Initiative). Dr. Mark Cohen. NOAA Air Resources Laboratory (ARL). College Park, MD, USA. Briefing Slides for GLRI Monthly Call. January 9, 2013. Atmospheric deposition is believed to be the largest . Weathering. Weathering is the process that breaks down rock and other substances at the Earth’s surface. . Heat, cold, water, and ice all contribute to weathering.. Repeated freezing and thawing for example can crack rock apart into smaller pieces. . Contrast. the features left from different types of erosion.. Analyze. the impact of living and nonliving things on the processes of weathering and erosion.. Erosion and Deposition. Section 7.2. gravity: . . (“Flow-Assisted”. . or “Flow-Accelerated”. . Corrosion). An increase in corrosion brought about by a high relative velocity between the corrosive environment and the surface.. Removal of the metal may be:. Krish Vijayaraghavan, Jaegun Jung and Ralph Morris. ENVIRON International Corporation. Novato, CA. Alaska Forum on the Environment. Anchorage, AK. February 6, 2014. 1. Acknowledgments. 2. Donlin. Gold. Introduction to thin film deposition.. Introduction to chemical vapor deposition (CVD).. Atmospheric Pressure Chemical Vapor Deposition (APCVD).. Other types of CVD (LPCVD, PECVD, HDPCVD…).. Introduction to evaporation.. Predict how weathering might reshape surface features (topography). Weathering and Erosion. The top part of the lithosphere—the earth’s surface—changes as rocks are broken down to smaller pieces and carried away.. - running water is the most effective agent of erosion. - gravity draws surface water downhill, which allows the water to erode soil and rock materials. - rivers also eventually leave their eroded materials behind, which we refer to as . WHAT IS COASTAL EROSION? Coastal erosion is the endless reshaping of shorelines by waves, currents, tides, storms, ice, rain and groundwater seepage. Human activities, like construction, dredging, CO The creation of sedimentary rocks. Weathering and Mass Movement. Objectives:. 1. Describe the processes by which erosion wears down and carries away rock. 2. Distinguish between chemical and mechanical weathering.