McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams

Home » Geology Dictionary

Geological Terms Beginning With "Z"



For Terms Beginning With Other Letters Please Click Below

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

Zeolite:

A group of hydrous aluminosilicates that are similar to the feldspars. They easily lose and regain their water of hydration and they fuse and swell when heated. Zeolites are frequently used in water softening, ion exchange and absorbent applications.

Zinc Blende:

A term used in reference to the mineral sphalerite.

Zirconium:

A mineral, zirconium silicate. A hard mineral with a high index of refraction that is used as a gemstone and as an ore of zirconium.

Zoned Crystal:

A crystal that grew while temperatures were changing or while the composition of the parent solution was changing. Crystals of these minerals can have a range of compositions, with a certain chemistry in the center reflecting the early growth conditions and the outer chemistry reflecting the later growth conditions. Minerals such as olivine or plagioclase which have a solid solution series frequently form such crystals.

Zone of Aeration:

A zone between the land surface and the water table where pore spaces are filled mainly with air. Water that exists in the pore space in this zone is referred to as "soil moisture".

Zone of Saturation:

The zone beneath the water table where all pore spaces are completely filled with water. Water that exists within this zone is known as "ground water".

Zone of Weathering:

A subsurface area, above the water table, where mineral and organic materials are subject to weathering.

Find it on Geology.com




More from Geology.com


Sliding Rocks
Sliding Rocks Mystery: What causes these rocks to slide across a Death Valley playa?
Gemstones
Gemstones: Fantastic images and articles about colored stones and diamonds.
Diamonds from Coal
Biggest Misconception: Lots of people think that diamonds form from coal. Not True!
US Diamond Mines
US Diamond Mines: Did you know that diamonds can be found in the United States?
volcanic explosivity index
Volcanic Explosivity: Learn about some of the most explosive volcanic eruptions.
rocks
Rock Gallery: Photos of igneous, sedimentary and metamorphic rocks.
caldera
Calderas are enormous volcanic craters formed by some of Earth\'s largest eruptions.
Organic Gems
Organic Gems are gems formed from or by plants or animals. They might also be fossils.



© 2005-2014 Geology.com. All Rights Reserved.
Images, code and content of this website are property of Geology.com. Use without permission is prohibited. Pages on this site are protected by Copyscape.