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Lecture

Brief, quick summary of lecture

4 Pages
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Department
Environmental Science
Course Code
EESA06H3
Professor
Nick Eyles

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Planet Earth Lecture 7:
Galapagos- islands tip of iceberg of plateau that runs east
Hot spot at top of islands
oCarry away from east; erode, hot spot trails
oFlat top, below sea level (sink Guyots flat top dead volcano)
Hot spot- hot spot islands, middle of ocean
oIslands have younger rocks than oceanfloor
oYoungest above hot spot, trail shows older
Systematic aging in trail
Hot spot trail- shows tectonic movement direction
Bathe-deep
Metri- measure
BATHYMETRIC- show water depth
Phreatomagmatic- water goes down, hit magma
oSteam, pyroclastic eruption
Young if theres no vegetation
Layers of ash- falls on land- pyroplastic (rocks with layers)
Cyndacone (cynda-burnt rock)
Volcanic ash-fine to large pieces (large ones-Scoria)
Giant prickly cactus-raised and tall because predation; eaten by giant tortoises
1859- Darwin published Origin of Species
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Description
Planet Earth Lecture 7: Galapagos- islands tip of iceberg of plateau that runs east Hot spot at top of islands o Carry away from east; erode, hot spot trails o Flat top, below sea level (sink Guyots flat top dead volcano) Hot spot- hot spot islands, middle of ocean o Islands have younger rocks than oceanfloor o Youngest above hot spot, trail shows older Systematic aging in trail Hot spot trail- shows tectonic movement direction Bathe-deep Metri- measure BATHYMETRIC- show water depth Phreatomagmatic- water goes down, hit magma o Steam, pyroclastic eruption Young if theres no vegetation Layers of ash- falls on land- pyroplastic (rocks with layers) Cyndacone (cynda-burnt rock) Volcanic ash-fine to large pieces (large ones-Scoria) Giant prickly cactus-raised and tall because predation; eaten by giant tortoises 1859- Darwin published Origin of Species www.notesolution.com
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