The rover collected exciting rock samples on the first leg of its epic journey. Next, it will turn towards an ancient river delta to look for past life. Instead, Perseverance has spent the year ...

A team of researchers has made strides in understanding the formation of massif-type anorthosites, enigmatic rocks that only formed during the middle part of Earth's history. These plagioclase-rich ...

THE closing years of the nineteenth century witnessed a revival of interest in the petrology of gneous rocks, which must be regarded as marking an important stage in the development of that subject.

Introduction -- Physical properties of magma -- Intrusion of magma -- Forms of igneous bodies -- Cooling of igneous bodies and other diffusion processes -- Classification of igneous rocks -- ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American The Permian-Triassic boundary (251 million ...

Igneous rock (derived from the Latin word ignis meaning fire), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the ...

Pumice is an example of extrusive igneous rock. The word extrusive means that the magma was forced onto the earth's surface and cooled in a matter of hours. Granite is an example of intrusive igneous ...

Menu Local Geology History, Resources, and Facilities Geologic History of Southwestern Ohio At the Limper Geology Museum, you will be able to explore a large collection of local rock, mineral, and ...

The latest sign that plastic pollution is a gigantic global problem: rocks fused with melted plastic have been found on a remote Brazilian island, best known as a nesting site for green turtles.