Other
Scientific paper
Mar 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27..483h&link_type=abstract
Lunar and Planetary Science, volume 27, page 483
Other
1
Arachnoids, Tectonics, Venus
Scientific paper
The term "arachnoid" has been used colloquially to describe circular to elliptical structures having a set of radiating lineaments distinctly resembling the legs of a spider. However, little is known about the origin of these features and whether or not they are genetically related to each other or to other circular structures on Venus (e.g., coronae, volcanoes, and calderas). We have conducted a global survey of these features in order to more clearly define their characteristics and determine if they are in fact a separate type of feature. In contrast to previous counts, we find a rather small global population of only 36 features that we feel we can confidently call "arachnoids". A detailed examination of these features reveals that they do not display a common set of volcanic or tectonic characteristics indicative of a single process of formation. We also find that these features do not appear to universally represent a particular stage of corona, volcano, or caldera development. _
Hamilton Victoria E.
Stofan Ellen R.
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