English: Unusual crater Bonpland D, near Bonpland. This crater is pictured in Apollo Over the Moon: A View from Orbit (NASA SP-362), Figure 246, which has the following caption:
This small unnamed crater in Mare Cognitum is unusual because it appears to be deformed by a fault that also bounds a mare ridge. About 5 km in diameter, the crater is obviously older than the mare materials that have buried the outer part of its ejecta blanket. The visible part of the fault extends between the arrows and clearly transects the western wall of the crater. It also marks the west flank of a small mare ridge north of the crater. Viewed stereoscopically, the fault plane can be seen to dip gently to the west, and the surface west of the fault is lower than that on the east. The fault is, therefore, a low-angle normal fault. The abrupt disappearance of the fault at the south rim of the crater may seem surprising. One of several explanations is that it may lie buried beneath a younger basalt flow that flooded the area immediately south of the crater. Many lunar investigators, including several contributors to this volume, have suggested a relationship between faulting and the development of mare ridges. Although this is a very small and certainly uncommon example, it is a convincing example of a mare ridge that is coincident with a fault and thus lends support to this idea.-G.W.C. (George W. Colton)
日期
2015, Original 1972
来源
Apollo 16 Mapping camera image, cropped in GIMP. The original image is in the public domain because it is a work of the U.S. Government (NASA).
Immediate source: Arizona State University, Apollo Browse Gallery AS16-M-2207
{{Information |Description = Unusual crater Bonpland D, near [[Bonpland (crater)|Bonpland]]. |Source = [[Apollo 16]] Mapping camera image, cropped in GIMP.<br>The original image is in the public domain because it is a work of the U.S. Government ([[NAS...
This is a virtual print of Apollo Photograph AS16-M-2207 generated by the School of Earth and Space Exploration, Arizona State University. Usage of this image is governed by the Acceptable Use Policy, which can be accessed at -{R|http://apollo.sese.asu.edu/ABOUT_SCANS/index.html}-