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The heart of a lost landmass beats again.

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

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.

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...

Giant meteorite impacts may have created the land we live on