PPT-From Bedrock to Soil

What is soil Soil is a loose mixture of small mineral fragments organic material water and air that can support the growth of vegetation All soil is different Soil weathered rock fragments can be made of many different types of rock The type of rock that the soil was made from is called . They generally are less than 2 inches thick and are massive Crusts are created by the breakdown of structural units by flowing water or raindrops or through freezethaw action Soil crusts are generally only a temporary condition Typically the soil im P.O. Box 30444 - Lansing, MI 48909-7944 Phone: 517-373-1552 Limestone Bedrock Glade, Page 1 Limestone Bedrock Glade Community Abstract Global and State Rank : G2G4/S2 Overview : Limestone bedrock bedrock Figure 1.130,000 years ago bedrock Advancing Ice Sheet Figure 2.100,000 years ago bedrock Figure 3.13,000 years ago Glacial Lake Hitchcock Retreating Ice Sheet bedrock DeweysMillPond ttauquech :. Box #4. Read pages 131-132 in your textbook. Answer the following questions. 1) What factors influence the rates of weathering?. 2) In what climate would you find faster rates of weathering?. Erosion. The . unweathered. rock that lies below the lowest layer of soil. Depostion. Bedrock. delta. The decayed remains of plants and animals. a. delta. b. soil. c. humus. A large mass of deposited sediments at the mouth of a river. What is soil formed from?. What is bedrock. What is humus?. What are soil horizons?. The Source of Soil. Soil is a loose mixture of small mineral fragments, organic matter, water, and air that can support the growth of vegetation.. Mars Exploration Rovers. 90-day mission. Landed in early 2004. One lasted six years. The other is still exploring!. Spirit. Landing site picked from geomorphology. Crater with channel running into it. CLORPT for short. Soils differ from one part of the world to another, even from one part of a backyard to another. . They differ because of where and how they formed. And over time, five major factors control how a soil forms. These factors are . SOIL Texture. t. he . size. of the sediment particles. Largest particle. Smallest particle. Loam (best soil). LOAM—if you . mix of all . types of sediment. . ---- . for best . growth. Questions. Soils differ from one part of the world to another, even from one part of a backyard to another. . They differ because of where and how they formed. And over time, five major factors control how a soil forms. These factors are . Are they different? and . Do they matter?. Susan Andrews, National Leader. Soil Quality and Ecosystems. National Soil Survey Center. August 9. , . 2012. Soil Quality Definitions. “fitness for use”. Uppermost layer of earth’s crust that supports plants, animals and microbes. Soil Forming Factors. Parent Material. Time. Climate. Vegetation & Organisms. Topography. 1. Parent Material. Refers to the rock and minerals from which the soil derives.. April 27, 2017. Public Meeting. ∙ State sampled approximately 570 drinking water wells. Still getting requests . ∙ Just under 50% (276) had PFOA concentrations above 20 ppt. ∙ 255 Point-of-Entry-Systems installed to date. Success criteria: . understand what a profile is . name the layers under our feet. explain the role of each layer. What are the different soil layers? . Bedrock. Subsoil and parent material. Topsoil.