carbonate and biotite alteration hosted in basalt and sandstone. Historic work identified a 2,300 ft. X 2,300 ft. area, the D Zone, along with the A Zone and E Zone, two breccia zones within a ...

Chalcopyrite and bornite are associated with multi-stage diorite and granodiorite of the Mount Washington intrusive and related breccia types with quartz, carbonate and biotite alteration hosted in ...

The rock fragments are mainly basalt, breccia, and agglutinates. The primary constituent minerals of the soils are plagioclase, pyroxene, and ilmenite, with very low olivine abundance. The lunar ...

The age of Mare Orientale could act like a lunar Rosetta stone for dating the age of the moon's other giant impact basins.

basalt breccia and ash and lapilli tuff. An oxidized leached zone of argillic alteration was intersected from the top of bedrock at 4.5 meters to 8.3 meters depth. Multiple zones of intense clay ...