T o the untrained eye, the Bushveld Igneous Complex (BIC), in northeastern South Africa, is kind of unassuming. It’s roughly the same size as West Virginia – or, for metric users, the Republic of ...

The Great Unconformity is a major gap in Earth's geologic record. The missing layer between Precambrian and Cambrian rocks ...

In a quiet part of southern Romania, rounded sandstone formations sit in open fields and woodland edges, drawing steady scientific interest. Known as .

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The same travertine quarries near Rome that built St. Peter's Basilica and the Colosseum are still being dug out today, providing the distinctive pock-marked rock to build a new generation of churches ...

Marcia Bjornerud loves rocks. Not just under a petrographic microscope, but as animated entities with properties and ...

Even when Earth was locked in a global deep freeze, its climate may have kept moving. Ancient rocks reveal seasonal and decade scale cycles beneath the ice during Snowball Earth.

In a recent paper published in Geology, scientists propose that certain kinds of wrinkle structures in sedimentary rock are the remnants of ancient microbial communites, similar to those found in deep ...

Here are a few especially interesting examples. Some of the deepest rocks you might encounter are fragments of the Earth’s upper mantle, known as serpentinized peridotite, torn from the Fidalgo ...

Scientists believe these rocks were formed by ancient rainfall, similar to how they form in tropical climates on Earth. The discovery adds to the evidence that Mars may have once been a habitable ...

Sorting through what exactly Alex Pretti did or did not do to provoke his death in Minneapolis at the hands of ICE agents is not enough to understand this tragedy. Pretti had a permit for his ...