Other
Scientific paper
Mar 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27.1429w&link_type=abstract
Lunar and Planetary Science, volume 27, page 1429
Other
Craters: Dark-Floored, Craters: Modification, Craters: Morphometry, Venus: Volcanism
Scientific paper
Most impact craters on Venus show remarkably well-preserved rim structures and external ejecta features. Still, the interiors of these craters are much more variable. In particular, many craters show radar dark floor units that are suggestive of minor crater-centered volcanism. Since floor-filling volcanism is likely to affect the size of a crater floor or its central peaks, this hypothesis can be tested by comparing the interior morphometry of bright- and dark-floored venusian craters. Such an analysis of 69 bright-floored craters and 44 dark-floored craters has revealed morphometric differences consistent with crater-filling in about half of the dark-floored craters. Specifically, those craters with the darkest crater floors have a consistent range of crater floor/rim and peak/rim diameter ratios. This range of values is to one side of the broader trends defined by both the youngest craters on Venus and by other (undeformed) venusian craters. Further, the darkest floored craters are also comparable in morphometry to the few floor-fractured craters which have been identified on Venus. Because floor-fractured craters are likely sites for shallow, crater-centered intrusions, this similarity provides additional support for magmatism within the darkest-floored venusian craters. Finally, tectonically modified crater floors are also morphometrically similar to the darkest floored venusian craters. Thus, there may be a link between tectonic crater modification and crater-centered volcanism on Venus.
No associations
LandOfFree
Internal Crater Modification on Venus: Implications of Interior Crater Morphometry does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Internal Crater Modification on Venus: Implications of Interior Crater Morphometry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Internal Crater Modification on Venus: Implications of Interior Crater Morphometry will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1615493