0. A-12 Basalt

A-12 Basalt

Only known from deep drill samples. This unit represents old oceanic crust, atop which the sedimentary units of the Met’ula Group were deposited. Technically not part of the group itself, it is usually mentioned in the same overviews as the rest of the Met’ula Group in most literature. No naming consensus has been established for this unit, since it has no surface expression, and so is often referred to by the primary sample number from its discovery.