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A Geological Adventure Uncovered Ancient Chunks of Earth Hiding in Crystals

The heart of a lost landmass beats again. ....

South Africa , Tod Waight , Andreas Petersson , Maury Povich , Department Of Geosciences , University Of Copenhagen , Natural Resource Management , Northern Europe , Solar System , Region Of Finland , Geological Foundation , University Of Copenhagen , Chemical Fingerprint , Continental Crust ,

Orion Magazine - Inside the Deepest Artificial Hole on Earth

EVEN IN A HORIZONTAL, flat landscape, cosmology runs vertical. From up heaven, to down hell. In between, the interface that thin crust upon which life is ....

United States , New York , Hong Kong , Wolf Lake , Kurganskaya Oblast , Michaela Vieser , Justin Bennett , Charlotte Roche , Isaac Yuen , Victor Koslovsky , Yuri Smirnov , Michaela Vieseris , Knesebeck Verlag , Al Shaheen , Virginia University , Jan Michalski Foundation , Pittsburgh Natural History Museum , Hanse Wissenschaftskolleg Institute Of Advanced Studies In Delmenhorst , Thus Spoke , Kola Borehole , Soviet Union , Continental Crust , Deep Drilling , Cold War , Hollow Earth , Baltic Shield Continental Crust ,

Primitive Plate Tectonics That Existed 4 Billion Years Ago May Helped Life to Form on Earth [Study]

Plate tectonics may have driven the formation of the continental crust. Click to read more. The origin of life on Earth has been a mystery, with scientists baffled as to how the transition from inorganic to organic matter created the simple life forms and complex ones that we see today. ....

United States , Charles Darwin , Alfred Russel Wallace , United States Geological Survey , Thom Holmes , Nature Geoscience , Lack Of Oxygen Will Lead , Most Life , Billion Years , Plate Tectonics , Tectonic Plates , Life On Earth , Origin Of Life , Continental Crust ,

"Titanium and iron isotopic records of granitoid crust production in di" by Zhe J. Zhang, Nicolas Dauphas et al.

Archean granitoid provides critical clues on how Earth's felsic crust was established and its geodynamics evolved. In this study, we present Fe-Ti isotope and trace-element data for granitoids (mostly TTGs) from the ∼3.8-3.6 Ga Itsaq Gneiss Complex and ∼3.3 Ga East Pilbara Terrane, Pilbara Craton. TTGs from those localities and several other cratons follow the same Ti isotopic fractionation trend as modern calc-alkaline rocks. This similarity hides important petrogenetic differences as partial melting could have played a much more important role in establishing the felsic character of TTGs compared to modern granites of calc-alkaline affinity. Our thermodynamics-based modeling of isotopic fractionation shows that partial melting of hydrated metabasite can explain the Fe and Ti isotopic compositions of many TTGs but reworking of tonalite crust is needed to explain the most extreme compositions. The same Ti isotopic fractionation trends have been found now in several cratons (We ....

Pilbara Craton , Itsaq Gneiss Complex , East Pilbara Terrane , West Greenland , Continental Crust , I Isotopes ,

What created the continents? New evidence points to giant asteroids

Giant meteorite impacts may have created the land we live on ....

United States , Pilbara Craton , Western Australia , Deep Time , Earth 39s Mantle , Plate Tectonics , Continental Crust ,