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About.com Geology: What's Hot Now



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Published: Wed, 28 Sep 2016 11:04:42 +0000

 



New Hampshire Geologic Map
Geologic map of New Hampshire, part of a set of all 50 states. Page 29.



Shale
Shale is one of the major types of sedimentary rocks. Page 23.



Sandstone
Sandstone is one of the major types of sedimentary rocks. Page 22.



Mechanical Weathering
A short explanation of mechanical weathering.



Feldspar (Orthoclase)
Feldspar is a major rock-forming mineral. Page 5.



What are Convergent Plates?
Convergent plate boundaries form the world's most intense volcanoes, deepest ocean trenches and highest mountains.



Muscovite Mica
Muscovite is classed as a rock-forming mineral. Page 6.



Babingtonite
Babingtonite is one of the pyroxene minerals. Page 3.



Augite
Augite is one of the pyroxene minerals. Page 2.



Biotite
Biotite is an iron-rich member of the mica minerals.



Transform Boundaries - When Earth's Plates Move...
Transform boundaries or transform faults occur wherever the Earth's plates move past each other.



Biotite Mica
Biotite mica is classified as a rock-forming mineral. Page 2.



Dietary Minerals and Real Minerals
Nutritionists and geologists mean different things when they talk about minerals.



Rock Gypsum
Rock gypsum is one of the major types of sedimentary rocks. Page 20.



Siltstone
Siltstone is one of the major types of sedimentary rocks. Page 24.



Olivine
Olivine is an important rock-forming mineral. Page 7.



Here are the Sizes of Tectonic or Lithospheric...
Here is a table listing the lithosphere's tectonic plates by order of size. The lithosphere is the brittle outer layer of the solid Earth.



Conglomerate
Conglomerate is one of the major types of sedimentary rocks. Page 10.



Fish
Fossil fish from Eocene lake beds. Page 12.



All About Lithification
Lithification refers to the process in which sediments are turned into rigid rock through compaction and cementation.



Limestone
Limestone is one of the major types of sedimentary rocks. Page 17.



What Is a Pluton?
Plutons are deep-seated bodies of large-grained igneous rock. They can be exposed at the surface if erosion wears away overlying rock.



Chlorite
Chlorite is one of the silicate minerals. Page 6.



Conglomerate Picture Gallery
An assortment of conglomerates.



Calcite
Calcite is a rock-forming mineral, most important in limestone. Page 3.



Nebraska Geologic Map
Geologic map of Nebraska, part of a set of all 50 states. Page 27.



Top 10 Gemstone Special Effects
The most important optical effects in gemstones, from fire to asterism.



Bivalves
A recent fossil clam looks like bivalves from the Early Cambrian. Page 2.



Learn to Read a Geologic Map
Understanding geologic maps starts with topography.