5 votes

From how deep in the mantle has any rock ever been brought to the surface? Have scientists found anything they believe originated in the outer core?

Diamond is stable at high temperatures only under very high pressures. Mineral inclusions in a diamond, and the rocks in which a diamond are embedded, can offer further clues as to the depth from ...
nigel222's user avatar
  • 161
4 votes

From how deep in the mantle has any rock ever been brought to the surface? Have scientists found anything they believe originated in the outer core?

As far as I know the best estimate is "upper mantle" from mantle xenoliths but that's not terribly specific. I am not sure if knowing more than that is possible right now.
Ian's user avatar
  • 41
4 votes
Accepted

Relay structures in Rupes Recta

From Nahm & Schultz (2013): Detailed structural mapping of Rupes Recta has revealed the presence of four distinct fault segments (Fig. 6). Analysis of throw distributions can clarify which ...
Jean-Marie Prival's user avatar
1 vote

Mud cracks formation

Mud cracks are created at the surface of mud, as the name implies. Afterwards, due to burial processes, younger sediments may fill in the cracks. Later, the mud-cracked-with-infilled-sediments system ...
EarlGrey's user avatar
  • 461

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