Friday, April 19, 2019
plate tectonics

plate tectonics

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Over the last 540 million years, as the Earth's tectonic plates have shifted, MIT researchers have found that periods of major tectonic activity (orange lines) in the tropics (green belt) were likely triggers for ice ages during those same periods.
plate tectonics

Tectonics in the tropics trigger Earth’s ice ages

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Tibetan Plateau
plate tectonics

Tibetan plateau rose later than we thought

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subducted oceanic crust inferred from this study.
plate tectonics

Fate of the subducted oceanic crust revealed by laboratory experiments

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The central Andes Mountains and surrounding landscape, as seen in this true-color image from NASA’s Terra spacecraft, formed over the past 170 million years as the Nazca Plate lying under the Pacific Ocean has forced its way under the South American Plate. Credit: NASA
plate tectonics

Earth’s continental nurseries discovered beneath mountains

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University of Houston researchers John Suppe, left, Jonny Wu and Yi-Wei Chen have reconstructed the ancient plates under the Andes Mountains. Credit: University of Houston
plate tectonics

Scientists reconstruct ancient lost plates under Andes mountains

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Planktonic foraminifera, such as these collected in the Gulf of Mexico, form the base of many marine and aquatic food chains.
plate tectonics

Climate, life and the movement of continents: New connections

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Plate Tectonics
plate tectonics

Enhanced views of Earth tectonics

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Earth's mantle (dark red) lies below the crust (brown layer near the surface) and above the outer core (bright red).
plate tectonics

A wrench in Earth’s engine: Stagnant slabs

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Plate Tectonics
plate tectonics

Plate Tectonics May Have Been Active on Earth Since the Very...

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This graphic shows how the ancient land masses of Laurentia, Avalonia and Armorica would have collided to create the countries of England, Scotland and Wales.
plate tectonics

Geologists reveal ancient connection between England and France

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Paleogeographic scenario for the Jiachala Formation. a) Jiachala Formation, b)&c) other trench deposits to the west.
plate tectonics

Upper Cretaceous trench deposits of the Neo-Tethyan subduction zone

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Southern Japan on Feb. 3rd, 2011, showing the active cones of Kirishima (Shinmoedake) and Aira caldera (Sakurajima) volcanoes.
plate tectonics

Study finds deep subterranean connection between two Japan volcanoes

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Earth
plate tectonics

Scientists propose solution to ‘Gaia puzzle’

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Nuvvuagittuq, Canada
plate tectonics

Earth could have supported continental crust, life earlier than thought

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Earth's crust, mantle and outer core interactions.
plate tectonics

New insight into Earth’s crust, mantle and outer core interactions

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A 3D computer model of the asthenosphere by Rice University geophysicists finds that the convective cycling and pressure-driven flow can sometimes cause the asthenosphere to move even faster than the tectonic plates riding atop it.
plate tectonics

Flow in the asthenosphere drags tectonic plates along

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Cifelliodon wahkarmoosuch
plate tectonics

Utah fossil reveals global exodus of mammals’ near relatives to major...

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The Galicia group -- from left, Rice graduate student Nur Schuba, alumnus Ara Alexanian and graduate research assistant Mari Tesi Sanjurjo -- discuss the northwest portion of the 3-D seismic volume at Rice's Visualization Lab.
plate tectonics

Sub-sea rift spills secrets to seismic probe

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Lake Urmia (LU), its water level over time, and the survey area of the four satellites are shown, along with a topographic map of Iran and a sketch of the Lake Urmia Causeway.
plate tectonics

Keeping an eye on the soundness of structures

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plate tectonics

Formation of supercontinents and strength of ocean tides

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