Despite seeming like a relatively stable place, the Earth's surface has changed dramatically over the past 4.6 billion years. Mountains have been built and eroded, continents and oceans have moved ...
The study found that the Port Askaig Formation, composed of layers of rock up to 1.1 km thick, was likely laid down between 662 to 720 million years ago during the Sturtian glaciation -- the first of ...
Authors recieved research funding from the National Science Foundation (NSF). Christine Siddoway has received research grants from the NSF Office of Polar Programs. Rebecca Flowers has received ...
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A New USGS Map Lets You See the Layers of Rock and Sediment Hidden Directly Beneath Your Feet
In late August, the U.S. Geological Survey quietly released a new tool that could reshape how Americans understand the ground beneath their feet. The Cooperative National Geologic Map, now live online ...
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