Thread: what does abyssal peridotite come from？

I saw the term abyssal peridotite in an essay this morning.
Does any one know where it origin from and the geological meaning of it?
Thank you very much!

Try an internet search -- there are dozens of hits for "abyssal peridotite". Even wiki has some info.

Examples:

http://adsabs.harvard.edu/abs/2003TrGeo...2..103B
http://en.wikipedia.org/wiki/Peridotite

From wiki:

The peridotite below the ocean crust, "abyssal peridotite," is found on the walls of rifts in the deep sea floor. Oceanic plates are usually subducted back into the mantle in subduction zones. However, pieces can be emplaced into or overthrust on continental crust by a process called obduction, rather than carried down into the mantle; the emplacement . . . .

Originally Posted by PumaMan

Try an internet search -- there are dozens of hits for "abyssal peridotite". Even wiki has some info.

Examples:

http://adsabs.harvard.edu/abs/2003TrGeo...2..103B
http://en.wikipedia.org/wiki/Peridotite

From wiki:

The peridotite below the ocean crust, "abyssal peridotite," is found on the walls of rifts in the deep sea floor. Oceanic plates are usually subducted back into the mantle in subduction zones. However, pieces can be emplaced into or overthrust on continental crust by a process called obduction, rather than carried down into the mantle; the emplacement . . . .

Thank you very much!

Originally Posted by heaventian

Thank you very much!

Thank you for making me aware of a mineral that I don't have. I have a good sample of Peridotite but not Abyssal Peridotite.