Joints in Venusian lava flows

Details Joints in Venusian lava flows Joints in Venusian lava flows

Aug 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jgr....9713601j&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 97, no. E8, Aug. 25, 1992, p. 13,601-13,610.

Physics

17

Lava, Plates (Tectonics), Satellite Imagery, Venus Surface, Volcanology, Magellan Spacecraft (Nasa), Radar Imagery, Stress Distribution

Scientific paper

The bright polygonal patterns seen in some Magellan images of the volcanic plains are interpreted as joint networks. Several areas displaying such patterns are identified, noting their areal extent, the presence of volcanic features, and the regional topography. Intersection geometries of the lineations defining the polygonal patterns are typical of those found in tensile networks. In addition, the polygonal patterns exhibit no preferred orientation, implying that they are the result of horizontally isotropic stress fields. It is demonstrated that sufficient tensile stresses develop in a cooling Venusian flow to allow joints to form and that the thermal strain predicted is not incompatible with that observed. It is suggested that the tensioned networks are the result of a thermally stressed layer much thicker than a single lava flow. A second model is also considered in which thermal stresses develop as a result of regional elevation of the temperature gradient.

Affiliated with

Also associated with

No associations

Rating

Joints in Venusian lava flows 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 Joints in Venusian lava flows, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Joints in Venusian lava flows will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1167566