Earth formed about 4.6 billion years ago, during the geological eon known as the Hadean. The name "Hadean" comes from the ...

The ancient history of Earth has always been hard to read. Most of the planet’s earliest crust has been lost, buried, or ...

Studies of these zircon minerals has given us clues about the Hadean environment, and the formation and evolution of Earth’s ...

Scientists have found that 4.02-billion-year-old silica-rich felsic rocks from the Acasta River, Canada -- the oldest rock formation known on Earth -- probably formed at high temperatures and at a ...

Mafic rocks, in contrast, are relatively high in density and dark in colour because they contain minerals rich in iron and magnesium; Giants Causeway in Northern Ireland is made of basalt, ...

Mafic and ultramafic rocks in Mexico. Southern Mexico is made up of several island arcs, originally separated by trenches, which collided and deformed during the Laramide orogenesis (~80-35 million ...

Some of the Earth’s oldest rocks may have formed from the high temperatures of meteorite impacts, a new study reports. Granite-like, or felsic, rocks in Skip to content ...

This result goes against the predominant view in the field—that the early Earth was still cloaked in dark mafic rocks 3.5 billion years ago—says Jun Korenaga, a geophysicist at Yale University ...

Molybdenum isotopes in mafic igneous rocks record slab-mantle interactions from subarc to postarc depths (IMAGE) University of Science and Technology of China ...