Post Profile






How Plates Die . . . Or Do They?

A nice successful Earth theory, like a properly running civilization, should have a sustainable recycling system. In plate tectonics the waste-disposal stage corresponds to subduction, the process that takes old plates away from the game of continental drift. We know that while a plate is being subducted the volatile part, mostly water, gets mobilized and rises off the plate to reenter the rock cycle in volcanoes.
read more

share

Related Posts


Breakthrough achieved in explaining why tectonic plates move the way they do

Academics / General Science : Science Daily

Geophysicists have developed a new theory to explain the global motions of tectonic plates on the earth's surface. The new theory extends the theory of plate tectonics -- a kinematic description of plate motion without reference to ...

Congestion in Earth's mantle: Mineralogists explain why plate tectonics stagnates in some places

Academics / General Science : Science Daily

Seismic measurements show that in some regions of the Earth's mantle, plate tectonics stagnates. The causes of the 'congestion' of the subducted plate are still unknown. In a new study, mineralogists from Germany explain the phenome...

Plate tectonics cannot explain dynamics of Earth and crust formation more than three billion years ago

Academics / General Science : Science Daily

The current theory of continental drift provides a good model for understanding terrestrial processes through history. However, while plate tectonics is able to successfully shed light on processes up to three billion years ago, the...

How Far Back in Deep Time did Tectonic Plate Subduction Begin?

Biology / Paleontology : The Dragon's Tales

Heading down early on? Start of subduction on EarthAuthors:Turner et alAbstract:How the Earth's earliest crust was formed and when present-day plate tectonics (i.e., subduction) and life commenced remain fundamental questions in Ear...

Subduction channel processes: New progress in plate tectonic theory

Academics / Geology : Geology Times

How is plate subduction factory operated during continental collision? How do physical mixing and chemical reaction proceed at colliding continental margins of different depths? How is continental crustal material subducting into th...

Comments



Copyright © 2015 Regator, LLC