Structural history of Maxwell Montes, Venus: Implications for Venusian mountain belt formation
@article{Keep1994StructuralHO, title={Structural history of Maxwell Montes, Venus: Implications for Venusian mountain belt formation}, author={Myra Keep and Vicki L. Hansen}, journal={Journal of Geophysical Research}, year={1994}, volume={99}, pages={26015-26028} }
Models for Venusian mountain belt formation are important for understanding planetary geodynamic mechanisms. A range of data sets at various scales must be considered in geodynamic modelling. Long wavelength data, such as gravity and geoid to topography ratios, need constraints from smaller-scale observations of the surface. Pre-Magellan images of the Venusian surface were not of high enough resolution to observe details of surface deformation. High-resolution Magellan images of Maxwell Montes…
20 Citations
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References
SHOWING 1-10 OF 48 REFERENCES
Orogeny and large‐scale strike‐slip faulting on Venus: Tectonic evolution of Maxwell Montes
- Geology
- 1990
The Ishtar Terra highland region of Venus contains mountain belts morphologically similar to terrestrial orogenic belts. Akna Montes and Freyja Montes are long, linear mountain belts with about 4 km…
Venus Tectonics: Initial Analysis from Magellan
- GeologyScience
- 1991
Tectonic features on Venus are unlike those in Earth's oceanic regions in that strain typically is distributed across broad zones that are one to a few hundred kilometers wide, and separated by stronger and less deformed blocks hundreds of kilometers in width, as in actively deforming continental regions on Earth.
Constraints on the lithospheric structure of Venus from mechanical models and tectonic surface features
- Geology
- 1987
Radar images of the surface of Venus show numerous structures that are interpreted as having formed due to horizontal compression and extension of the lithosphere. Many of these features exhibit…
Dry Deformation of Diabase: Implications for Tectonics on Venus
- Geology
- 1994
Chemical analyses of the rocks on the surface of Venus and observations of the topography of that planet indicate that the Venusian crust is composed predominantly of rock with a basaltic…
Ishtar deformed belts: Evidence for deformation from below?
- Geology
- 1993
ISHTAR DEFORMED BELTS: EVIDENCE FOR DEFORMATION FROM BELOW?;V.L. Hansen i and R.J. Phillips2; I. Dept. of Geological Sciences, SMU, Dallas, TX 75275. 2. McDonnellCenter63130 for the Space Sciences…
Gravitational Spreading of High Terrain in Ishtar Terra, Venus
- Geology
- 1992
Magellan altimetry measurements indicate that the mountain belts and plateau margins of Ishtar Terra have topographic slopes in the range 2–30°. Magellan radar images reveal that numerous sets of…
Deformational models of rifting and folding on Venus
- Geology
- 1988
Tectonic features on Venus with characteristic widths and/or spacings can be used to place quantitative constraints on the structure of the mechanical lithosphere through geophysical modeling. We…
Tessera Terrain, Venus' Characterization and Models for Origin and Evolution
- Geology
- 1991
Tessera terrain is the dominant tectonic landform in the northern high latitudes of Venus mapped by the Venera 15 and 16 orbiters and is concentrated in the region between the mountain ranges of…
Gravity anomalies, compensation mechanisms, and the geodynamics of Western Ishtar Terra, Venus
- Geology
- 1991
Pioneer Venus line-of-sight orbital accelerations have been used to calculate the geoid and vertical gravity anomalies for western Ishtar Terra on various planes of altitude Z0. The apparent depth of…
Venus topography and kilometer‐scale slopes
- Geology
- 1992
During the first 8 months of the Magellan mission, the radar altimeter has made some three million measurements of the surface of Venus covering the latitude range from 85°N to 80°S. Methods…