What FACTS ABOUT ROCKS do you know? They are abundant on earth, and yet little is known about them. These facts will increase your knowledge of the rocks.

An igneous rock has come to be regarded, more constantly than before, not merely as a mineral-aggregate, but as-the product of consolidation of a molten rock-magma; and consideration has been ...

For extrusive rock, they have plateau ages from 110.8 ± 0.1 Ma to 116.6 ± 0.1 Ma. At 5,565.3 m, the basalt whole rock has no plateau or isochron result, but the plagioclase grain produced consistent ...

For instance, if a forester identifies soil derived from metasedimentary quartzite at one site and igneous extrusive soil at another, different management strategies should be tailored for each. The ...