That’s a ripple mark left by water that used to sit on top of this before it was rock. This used to be sand and other sediment - that's why it is called sandstone - which is a type of ...
"Basalt is actually the most common rock type on Earth, it covers most of the oceanic floors and around 10% of the continents. Wherever there's basalt and water, this model would work", says ...
By probing chemical processes observed in the Earth's hot mantle, scientists have started developing a library of basalt-based spectral signatures that not only will help reveal the composition of ...
Rocks made of basalt on and under the ocean bottom harbor abundant deep-sea bacteria. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert!