Kolkata: Zircon a little more than 4 billion years old has previously been found in Kerala’s Wayanad (in 2016) and from the river Baitarani in Odisha (in 2018). The Earth’s oldest zircon discovery, ...

Figure 1: Trace element cumulative frequency diagrams for zircons from I- and S-type granites of the Lachlan Fold Belt, and from the Jack Hills. Figure 2: Relationship between the concentrations of ...

Researchers from Presidency University, Hiroshima University and the National Centre for Earth Science Studies have found rock samples from Chitrial, around 100 km north of Hyderabad in Telangana, ...

An understanding of the amount of continental crust produced in the first 500 million years of Earth history, and the resulting chemical differentiation of the Hadean silicate Earth, are critical ...

Fresh evidence suggests early Earth wasn’t locked under a rigid stagnant lid but was already experiencing intense subduction. Ancient melt inclusions and advanced simulations point to continents ...

A new study has revealed that more than four billion years ago the Earth's surface was drastically altered by a bombardment of giant asteroids. Researchers from around the globe made the discovery ...