Geologic mapping of the northern leading hemisphere of Europa from Galileo solid-state imaging data

Details Geologic mapping of the northern leading hemisphere of Europa from Galileo solid-state imaging data Geologic mapping of the northern leading hemisphere of Europa from Galileo solid-state imaging data

Sep 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000jgr...10522629f&link_type=abstract

Journal of Geophysical Research, Volume 105, Issue E9, p. 22629-22646

Mathematics

Logic

45

Planetology: Solid Surface Planets: Orbital And Rotational Dynamics, Planetology: Fluid Planets: Tidal Forces, Planetology: Comets And Small Bodies: Surfaces And Interiors, Planetology: Solar System Objects: Jovian Satellites

Scientific paper

The northern leading hemisphere of Europa was imaged at regional mapping resolution (~230 m/pixel) by the Galileo spacecraft SSI camera. We produced geologic maps from a regional-scale mosaic and a high resolution inset of this region. Twelve geologic units were sufficient to produce correlative geologic maps at both regional and local scales. Stratigraphic relationships indicate four major episodes in the geologic history of this area: The first episode includes background plains formation and modification, followed by a second period of extensive lineament formation. The third episode included extensive chaotic disruption of the surface at low and middle latitudes. The final episode includes the formation of new sets of ridges and bands, especially at high latitudes. The low crater density indicates that all these episodes in Europa's geologic history are geologically recent. The latitudinal distribution of chaos areas broadly matches that of areas of crustal thinning from models of tidal heating. We show that stress directions rotated clockwise with time, which is consistent with predictions from global stress models involving tidal deformation and nonsynchronous rotation of Europa's crust. On the basis of the change in lineament orientation with time, the reconstructed longitudinal positions of the studied area indicate that Europa's crust completed a full rotation relative to the tidally deformed interior.

Affiliated with

Also associated with

No associations

Rating

Geologic mapping of the northern leading hemisphere of Europa from Galileo solid-state imaging data 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 Geologic mapping of the northern leading hemisphere of Europa from Galileo solid-state imaging data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Geologic mapping of the northern leading hemisphere of Europa from Galileo solid-state imaging data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1386660