MINERALS 5 CHARACTERISTICS OF A MINERAL: 1)Naturally Occuring; 2) Be a colid; 3) Have an orderly crystalline structure; 4) have a definite chemical composition; 5) generally be inorganic Which are not classified as Minierals & Why: Gold‚ Water‚ Synthetic Diamonds‚ Ice & Wood: Gold-YES – naturally occurring; Synthetic Diamond: NO – Manmade; Water: NO – liquid state‚ only a solid material can be considered a mineral – in it’s naturally occurring ice state it is a solid and therefore a mineral;
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Breccia. Sedimentary Bedrock formed approximately 342 to 400 million years ago in the Carboniferous and Devonian Periods. Local environment previously dominated by shallow seas. hese rocks were formed in shallow seas with mainly siliciclastic sediments (comprising of fragments or clasts of silicate minerals) deposited as mud‚ silt‚ sand and gravel. Partial Type
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7.2 vocab * Alluvial fan- a fan shaped deposit of sediment formed when a streams slope is abruptly reduced * Playa lake- a flat area on the floor of an undrained desert basin (playa) that fills and becomes a lake after heavy rain 7.2 outline * Weathering in Deserts: Although chemical weathering occurs in deserts‚ mechanical weathering is far more dominant in shaping desert landscapes. * Water in Deserts: In desert‚ water collects in streams and rivers that can deposit alluvial
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feet) wide between the shoreline and abutting a 180-meter (590 ft) high bluff. The top of the bluff is covered by avocado and citrus orchards. The bluff above La Conchita has a slope of approximately 35 degrees and consists of poorly cemented marine sediments On March 4‚ 1995‚ the hill behind La Conchita failed‚ moving tens of meters in minutes‚ and buried nine homes with no loss of life. The County of Ventura immediately declared the whole community a Geological Hazard Area‚ imposing building restrictions
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APES Name_______________________________ Date______________ THE SOIL TEXTURAL TRIANGLE PRACTICE NOTES 1. Soil Profiles – go to this site APES in A Box: Soil Profiles and take notes on the soil horizons: http://www.youtube.com/watch?v=6Kr3Wj7SeSc 2. Soil Triangle and Characteristics—go to this site APES in a Box: Soil Triangle and take notes: http://www.youtube.com/watch?v=VEgHmgnrWzk 3. How to read a Soil Triangle: http://www.youtube.com/watch?v=bAYzoVliNFQ 4. Now it is your
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diagram. On the right side for all of the stratigraphic units the paleomagnetic data is indicated with an “N” for normal polarity and “R” for reversed polarity. In each of the three left hand sites a fossil hominid has been discovered among the sediments and is indicated by a (*). From your knowledge of dating fossil sites‚ and from information found in the back of the book in the appendix on dating techniques‚ match the three sites on the
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national conservation area was at the bottom of a deep ocean basin and the western coast of North America was in present day Utah. Around 542 million years ago‚ Paleozoic‚ the area was under a deep ocean. Thick deposits of sediment‚ about 9‚000ft‚ were lithified. This lithified sediment eventually formed limestone and other similar carbonate rocks. Preservation of marine invertebrate fossils provides evidence for a marine setting for the Paleozoic. Starting around 250 million years ago‚ the Mesozoic
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rock type – Cliffs are made of glacial deposits of boulder clay which is eroded through abrasion and prone to slumping. This is more easily eroded than harder rocks such as chalk. * Narrow Beaches * Causes: * Flamborough Head stops sediment from the north replenishing. It is made of chalk which dissolves rather than making beaches. * Coastal defences. For example‚ at Mappleton which cause human erosion. * Powerful waves – A cause of the long fetch from the Arctic Ocean and
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Denudation Processes While volcanic activities are a mountain’s building process‚ denudation processes are trying to level them down. Denudation includes processes which removes rock debris and carrying them to a new location. These processes happen through gravity‚ wind‚ ice and water. In the Tongariro Volcanic Centre‚ winds are an effective denudation agent because the mountain top gales are frequent and severe. Winds can transport and deposit debris. They carry with them fine silts and sand
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Misty Sprout 5/3/2013 Smoky Mountains Most of the Smoky Mountains in the national park are sedimentary and were formed by accumulations of clay‚ silt‚ sand‚ gravel minor amount of calcium carbonate. The oldest of the sedimentary rock were formed during the Proterozoic Era about 800-545 million years ago. About 310-245 million years ago‚ the eastern edge of the North American tectonic plat collided with the African plate becoming part of a supercontinent. During one of earlier collisions‚ tremendous
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