Preview: About.com Geology: What's Hot Now
About.com Geology: What's Hot Now
These articles that had the largest increase in popularity over the last week
Published: Tue, 17 Jan 2017 11:03:12 +0000
How Old Is the Ocean Floor?
The oceanic crust is much younger than the continental crust, rarely reaching more than 180 million years in age.
Actinolite is a major amphibole mineral. Page 5.
Slate is a major metamorphic rock type from regional metamorphism. Page 17.
Augite is one of the pyroxene minerals. Page 2.
Pyroxenite is one of the major igneous rock types. Page 19.
Tuff is one of the major igneous rock types. Page 26.
Quartz monzonite is one of the major igneous rock types. Page 20.
Troctolite is one of the gabbroid rocks: igneous, plutonic and mafic. Page 25.
Quartz is classified as a rock-forming mineral. Page 9.