These rocks really shouldn't be there. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The surprising discovery of volcanic, "igneous ...

The Earth is rapidly warming, and similar climate upheavals over 300 million years ago once triggered massive fluctuations in ...

Some other examples of igneous intrusions in Scotland can be found at Dumbarton Rock (a volcanic plug in Dumbarton) and Loudoun Hill (a volcanic plug in Ayrshire). Learn more about some of the ...

When NASA’s Perseverance rover touched down in Jezero Crater in 2021, scientists expected to find rocks laid down by an ...

Volcanic rock is an igneous rock of volcanic origin. Volcanic rocks are usually fine-grained or aphanitic to glassy in texture. They often contain clasts of other rocks and phenocrysts.

Igneous rocks are formed when molten rock ... rocks or on the surface as extrusive (volcanic) rocks.

The researchers posit that the volcano could have supported conditions favorable for life in the once-watery Jezero crater.

This process can occur either below the Earth’s surface, forming intrusive or plutonic igneous rocks like granite, or at the surface following a volcanic eruption, producing extrusive or ...

The rocks could provide ... to form here on Earth via volcanic activity. Also present in the lunar regolith samples is an olivine-pyroxenite, a highly shocked igneous rock called magnesian ...