Geology Freak Blog

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Scientists Find Tiny Pieces of Opal in Meteorite

Small pieces of the mineral opal have been found within a brecciated ureilite meteorite from Antarctica. According to a team of scientists led by Prof. Hilary Downes of Birkbeck College London, UK, this find...

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Earth probably began with a solid shell

Today’s Earth is a dynamic planet with an outer layer composed of giant plates that grind together, sliding past or dipping beneath one another, giving rise to earthquakes and volcanoes. Others separate at undersea...