NAC Anaglyph: Moore F Crater

Moore F is an impact crater in transition. Image width is about eight kilometers. NAC images M125720601L/R and M125713813L/R. [NASA/GSFC/Arizona State University]

Today we grab our red and blue glasses and swoop down into Moore F, a 24-kilometer wide farside (37.35°N, 185.04° E) impact crater with signs both of fiery youth and slow aging. The readily discernible cracked impact melt in the top part of the anaglyph Featured Image above is a sign of youth; the landslide debris spilling down the elevated landform at the bottom of the image is a sign of degradation.  One estimate places the crater age at 40 million years – that is young as lunar craters go.

The elevated landform might also be a sign of transition. Above a certain size, asteroid and comet impact craters on the Moon often have a central peak. Below that size, they usually have a bowl-shaped or flat floor.  The transition line between large central peak craters and small flat-floored craters is not, however, set in stone. Moore F is on the small side as central peak craters go, yet it has a central elevated landform. Is that elevated feature a central peak? 

The image below shows more of Moore F. The central elevated landform is at center right, but what really grabs our attention are the impressive wall collapse features that bury the cracked impact melt in the western and southern parts of the crater.  Tongues of debris extend northeast and east toward the crater center. Could the central elevated landform and wall collapses be related?

The Sun was sinking toward the western (left) horizon when the LROC NAC instrument captured this image from orbit 150 kilometers above Moore F. The high western rim and extensive wall collapse features cast deep shadows. The Featured Image anaglyph covers the area in the northeast (upper right) part of this image. Image width is about 20 kilometers. Be sure to explore this part of Moore F in detail in the zoomable image below. Image M1112978178. [NASA/GSFC/Arizona State University]

Related Links for this Anaglyph

Full RDR product page

Lunaserv context map

Quickmap context map

Introducing LROC NAC Anaglyphs!

Related Featured Images

Breaking Down Walls Details of Moore F's magnificent slumpy walls

Bright Boulder Trail Bouncing boulder leaves a trail in Moore F

More Impact Melt! Moore F impact melt

Erosional Trough on Crater Wall Lunar dust flow on the Moore F interior crater wall

Published by Kristen Paris on 9 August 2018