station 60km south through the natural flux of organic matter settling from the surface but rather that the Mariana Trench acts as a deep natural sediment trap that supports the microbial life that was observed through comparing the the abundance of Pb isotopes from both sites. This type of setting could allow for “the collection and focussing of sediments and relatively young organic matter‚ such as bottom-water aggregates that are recurrently suspended and deposited at shallower
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How Natural Processes Operate at Coastal Geographic Environment. Natural Processes are actions or events that have natural causes‚ which result in natural events. The three main coastal environment processes that operate at Muriwai are Coastal Erosion‚ Coastal Transportation and Coastal Deposition. The elements that interact to produce natural processes are wind‚ waves and tides. Each phenomenon at Muriwai’s coastal geographic environment has been produced by interaction. Coastal
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General Study Guide: Test 1 Garrison 8th Edition Go over all powerpoint slides and concepts discussed. Chapter 1 Origins 1. Ages: Universe‚ Earth‚ Ocean 2. Scientific method 3. Big Bang Theory – universe is expanding - two major sources of evidence 4. Hubble’s Law 5. What is a light year and why do we use it to measure distance in the universe? 6. What are 3 major processes that formed the solar system and planets? 7. What is most abundant element in solar nebulae? 8. What are
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and when it cools‚ it becomes new seafloor. This is why newer seafloor (igneous rock) is younger when it is closer to the ridge. 2. If the distance from a point on the coast of Africa to the Mid-Atlantic Ridge is approximately 2‚400 km‚ calculate how long ago that point in Africa was at or near the Mid-Atlantic Ridge. That point in Africa was at or near the Mid-Atlantic Ridge 192 million years ago. I got this answer because I know that the movement of the seafloor is about 1.25 cm per year. I converted
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Discuss the evidence for tectonic plate movement There has been a variety of different evidence for tectonic plate movement but the main evidence was Wegener’s theory which was based on a variety of different evidence from several sciences. Alfred Lothar Weneger was a German polar researcher‚ geophysicist and meteorologist‚ he first thought of this idea by noticing that the different large landmasses of the Earth almost fit together like a jigsaw puzzle. In 1912‚ he proposed his explanation – the
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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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