Flashcards
Seafloor
Cards in this deck (21)
- 1How much of Earth's surface is seafloor2/3
- 2When was most information discoveredafter ww2
- 3Study techniquesecho/sonar, submersibles, drill holes, in-situ detectors
- 4Early explorersHMS Challenger (1874) Glomar Challenger (1968-83)
- 5What type of rock is oceanic crustBasaltic
- 6What type of rock is continentalgranite
- 7Mid Oceanic Ridgeslong mountain ridges with rift valleys at the center, earthquakes, volcanic eruptions
- 8Fracture Zonescracks perpendicular to MOR.
- 9What do FZ tell usthat the seafloor is growing laterally from MOR
- 10Deep Sea TrenchTrenches adjacent to CM or Island Arcs.
- 11How deep do DST get10km
- 12Features of DSTEarthquakes, volcanoes
- 13Type of rock at DSTandesite
- 14Reef life cyleIsland-Fringing Reef-Barrier Reef-Atoll
- 15What makes a volcano activeeruption in last 10000 years, recent earthquakes
- 16What are island arcs parallel toDST
- 17Are Earthquakes at MOR deep or shallowshallow
- 18are earthquakes at DST shallow or deepboth
- 19Terrageneous Sedimentclose to the shore
- 20Pelagic Sedimentsfar from the shore
- 21How old are the oldest seafloor rocks250 million years old
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- Flashcards on Seafloor, created by scott phillips on 03/12/2017.
- Created by
- scott phillips · Dec 2017
- Updated
- Dec 4, 2017
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