here for larger NASA image of Figure 74
Click here for larger NASA image of Figure 81
Click here for lunar chart showing location
This enlargement (right) provides a closeup view of part of the ridge.
The fact that a fairly young impact crater (A) is deformed by the ridge
and the generally fresh appearance of the ridge both suggest that it is
fairly young. Within the valley, the ridge consists primarily of east-facing
imbricate scarps, although west-facing lobate scarplets are also present.
After crossing into the highlands (B), the ridge becomes a simple one-sided
scarp resembling a fault scarp. If faulting was involved, movement was
upward on the left side or, less probably, downward on the right. The Apollo
17 astronauts were unable to provide conclusive answers concerning the
origin of the ridge owing to the thick cover of regolith and avalanche
material. Photogeologic study indicates that part of the ridge may have
formed by displacement along a fault or, less likely, by the upwelling
of lava. B.K.L.
Report Source: NASA SP-362, Page 91, Figure 81
This web page was created by Francis Ridge
for The Lunascan Project
Section Directory 24 Section Directory 25