Pinterest • The world’s catalogue of ideas

Explore Geology Tectonic, Tectonic Features and more!

Coesite in clinopyroxene in the Caledonides and its implications for geodynamics DAVID C. SMITH Laboratoire de Minéralogie, CNRS Laboratoire-Associé No. LA286, Muséum National d'Histoire Naturelle, 61 Rue de Buffon, 75005 Paris, France Coesite is reported for the first time from the Caledonide orogen. It occurs as inclusions in clinopyroxene in the dolomite-eclogite at Grytting, Norway, and provides valuable new evidence to support the hypothesis of extremely high pressure (≥30 kbar) in…

from Speaking of Geoscience™

When did Plate Tectonics begin on Earth, and what came before?

By Robert J. Stern Two of my favorite topics of geoconversation are how new subduction zones get started and when in Earth’s history did plate tectonics begin? Both are fascinating geoscientific qu...

coesitePPL.jpg (467×310) evidence for ultra deep rocks at earth's surface km deep

The assemblage of rocks in the Entrelor area is interpreted as a metamorphic mixture, consisting of eclogites rocks embedded in a blueschist...

deep structure of caribbean plate - Google Search