A new study of sapphires found in volcanic fields in Germany reveals that these beautiful blue stones form where magma and rocks from Earth's crust …
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Geologists Uncover New Hidden Gems of Earth
Brilliant-blue sapphires look like bits of sky brought down to Earth — but a new study finds these gemstones are from a different boundary: the one between the planet's crust and magma welling up from the mantle, Earth's middle layer.
Huge iron ore deposits in Western Australia's Hamersley Province formed when major tectonic events led to the breakup of supercontinent Columbia and …
The Salar de Uyuni desert is famous for its gleaming surface waters and hexagonal salt crust patterns, but below this otherworldly landscape lie …
Researchers have discovered a pattern where diamonds spew from deep beneath Earth's surface in huge, explosive volcanic eruptions. The breakup of …
Lake Kivu, one of the African Great Lakes, sits along a tectonic plate boundary called the East African Rift, which is dotted with hot springs that …
