Crust (geology) - Wikipedia, the free encyclopedia
|
|
In geology, a crust is the outermost solid shell of a rocky planet or moon, which is chemically distinct from the underlying mantle. The crusts of Earth, our Moon, Mercury, Venus, Mars, Io, and othe...
en.wikipedia.org/wiki/Crust_(geology)
|
|
Continental crust - Wikipedia, the free encyclopedia
|
|
The continental crust is the layer of igneous, sedimentary, and metamorphic rocks which form the continents and the areas of shallow seabed close to their shores, known as continental shelves. This ...
en.wikipedia.org/wiki/Continental_crust
|
|
|
There is an Oceanic crust and a Continental crust. The first one is about 4-7 miles (6-11 km) thick and mainly consists of heavy rocks, like basalt. The Continental crust is thicker than the Oceanic crust, about 19 miles(30 km) thick.
|
mediatheek.thinkquest.nl/~ll125/en/crust.htm
mediatheek.thinkquest.nl/~ll125/en/crust.htm
|
|
|
|
|
|
Oceanic crust covers two-thirds of Earth's rigid outer layer, and this was probably already the case during the Archean (over 2500 million years ago), when heat flow from Earth's interior was much higher than today.
|
www.sciencemag.org/cgi/content/summary/292/5519/1076
|
|
|
|
oceanic crust -- n. The Earth's crust which is formed at mid-oceanic ridges, typically 5 to 10 kilometers thick with a density of 3.0 grams per centimeter cubed. ... orogeny -- n. The tectonic processes of folding, faulting, and uplifting of the earth’s crust that result in the formation of mountains.
|
www.ucmp.berkeley.edu/glossary/glossary_O.html
|
|
|
The Earth's oceanic crust is formed from molten rock, or magma, located beneath mid-ocean ridges. Magma chambers located in the mid-crust are known to be responsible for generating the upper-oceanic crust.
|
www.sciencedaily.com/releases/2005/09/050906082013.htm
|
|
As I wrote a few days ago in my piece on ophiolites most of what we know today about oceanic crust, we know from ophiolites. Another approach is seismology or seismic exploration.
|
my.opera.com/nielsol/blog/show.dml/736550
|
|
What does OC stand for? Definition of Oceanic crust in the list of acronyms and abbreviations provided by the Free Online Dictionary and Thesaurus. ... Magma removal to form oceanic crust results in mantle residue that is depleted in Rb relative to Sr, and the crust is Rb-enriched.
|
acronyms.thefreedictionary.com/Oceanic+crust
acronyms.thefreedictionary.com/Oceanic+crust
|
|
