Distribution of Active Volcanoes to Plate Tectonics Flashcards
(18 cards)
What is the purpose of Raisin Theory?
To further explain the physical attributes of Earth.
Proposer of Isostacy?
Date of approval?
Clarence Edward Dutton in 1889.
What is Raisin Theory?
Earth is like a grape turned raisin due to cooling processes from the big bang.
What is the state of Isostacy and it’s purpose?
A gravitational equilibrium between earth’s lithosphere and asthenosphere.
To further explain earth’s contraction.
What is the fuction of thickness and density on Earth’s crust?
Elavation of any part of earth’s crust.
Isostacy’s Greek origin.
Isos = Equal Statis = Stand Still
What is plate tectonic theory?
Earth’s outermost layer is fragmented into small and large solid plates called “lithospheric/tectonic plates”
What is the asthenosphere?
Hot and mobile material rid by plates in constant motion (Relatively).
Tectonic Greek origin.
Tekton = carpenter/builder.
What is the 1st supercontinent in Continental Drift Theory?
Rodinia predated Pangaea.
What period did Pangaea break up?
Late Triassic Period.
Direction of the 2 supercontinents.
Laurasia (north)
Gondwanaland (South)
Ocean around Pangaea?
Panthalassa
Sea separating the 2 supercontinents.
Thethys sea.
What are volcanoes?
Mountains that open downward to reservoir of molten rock/magma.
Hawaian hotspot discoverer.
John Tuzo Wilson.
How far apart each volcanoes in the hawaian hotspot?
3 thousand miles.
Name the 5 volcanoes in the Hawaian hotspots.
Kauai, Oahu, Molokai, Maui, Hawaii.
