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 surprisingly shallow depth of the planet’s nascent crust. The high temperatures needed to melt the shallow crust were likely caused by a meteorite bombardment around […]
Posts Tagged ‘Rocks’
Meteorite bombardment likely to have created the Earth’s oldest rocks
August 22nd, 2018 
Riffin 
Posted in Featured Post 
Tags: bombardment, Earth, felsic, meteorite, Riffin T Sajeev, Rocks, Russel T Sajeev, silica, WFS, WorldFossilSociety 
No Comments »Sound waves reveal enormous diamond cache deep in Earth’s interior
August 1st, 2018 Riffin Sound waves reveal a surprisingly large diamond cache deep in Earth’s interior, researchers report.
Posted in Featured Post Tags: diamond, Earth, interior, Mantle, minerals, olivine, Riffin T Sajeev, Rocks, Russel T Sajeev, sound, waves, WFS, WorldFossilSociety No Comments »Why rocks flow slowly in Earth’s middle mantle
June 6th, 2017 Riffin @WFS,World Fossil Society,Riffin T Sajeev,Russel T Sajeev For decades, researchers have studied the interior of the Earth using seismic waves from earthquakes. Now a recent study, led by Arizona State University’s School of Earth and Space Exploration Associate Professor Dan Shim, has re-created in the laboratory the conditions found deep in the Earth, and used […]
Posted in Featured Post Tags: flow, Mantle, Riffin T Sajeev, rock, Rocks, Russel T Sajeev, WFS, world fossil society No Comments »Rocks of Tetons formed by continental collisions
February 3rd, 2016 Riffin Key: WFS,Riffin T Sajeev,Russel T Sajeev,World Fossil Society University of Wyoming scientists have found evidence of continental collisions in Wyoming’s Teton Range, similar to those in the Himalayas, dating to as early as 2.68 billion years ago.The research, published Jan. 22 in the journal Geochimica et Cosmochimica Acta, shows that plate tectonics were operating in […]
Posted in Featured Post Tags: continental collisions, Riffin T Sajeev, Rocks, Russel T Sajeev, Tetons, WFS, world fossil society No Comments »
