Topographic Features of Ithaca Chasma , Tethys
نویسندگان
چکیده
Helfenstein, and C. C. Porco. German Aerospace Center, Institute of Planetary Research, Rutherfordstr. 2, 12489 Berlin, Germany, [email protected]; Institut für Geologische Wissenschaften, Freie Universität, 12249 Berlin, Germany; Department of Astronomy, Cornell University, Space Sciences Building, Ithaca, NY 14853, USA, Cassini Imaging Central Laboratory for Operations, Space Science Institute, 4750 Walnut Street, Suite 205, Boulder, CO 80301, USA.
منابع مشابه
Implications from Ithaca Chasma for the thermal and orbital history of Tethys
[1] Flexural modeling of Ithaca Chasma on Tethys suggests that the elastic thickness and the surface heat flux were 5–7 km and 18–30 mW/m respectively, when the feature formed ( 4 Gyr B.P.). Tidal heating is a plausible heat source, suggesting that Tethys’ eccentricity was higher in the past. Depending on Tethys’ internal structure, eccentricities in the range 0.001 to 0.02 are sufficient to ha...
متن کاملTopographic Comparisons of Uplift Features on Venus and Earth: Implications for Venus Tectonics
Introduction: Earth and Venus have many similar features, yet their tectonic histories are quite different. Like the Earth, Venus has a global rift system, which has been cited as evidence of tectonic activity, despite the apparent lack of Earth-style plate tectonics. Both systems are marked by large ridges, usually with central grabens. On Earth, the topography of the rifts can be modeled well...
متن کاملMorphologic Observations of Chasma Boreale, Mars Using Moc, Themis, and Mola: Origins Revisted
Introduction: Chasma Boreale, a large reentrant in the martian North Pole, is distinct from other polar troughs by its large size and counterclockwise orientation [5]. The ~ 1300 m deep chasma extends for ~ 500 km from its proposed origin at 85° N, 2o E and is on average ~ 60 km wide. The head of the feature is marked by two major steep, arcuate scarps. Extending from the mouth of Chasma Boreal...
متن کاملChasma Boreale, Mars: Topographic characterization from Mars Orbiter Laser Altimeter data and implications for mechanisms of formation
[1] Chasma Boreale, a large reentrant in the north polar cap of Mars, is distinct in scale, detailed topography, and orientation from the spiraling troughs that characterize the majority of the polar cap. We use new, high-resolution Mars Orbiter Laser Altimeter (MOLA) data and Mars Orbiter Camera (MOC) and Viking images of the chasma region to assess hypotheses of origin of Chasma Boreale. Thes...
متن کاملChasma Boreale, Mars: Topographic Characterization from MOLA Data and Implications for Mechanisms of Formation
Chasma Boreale, a large reentrant in the North Polar cap of Mars, is distinct in scale, detailed topography, and orientation from the spiraling troughs that characterize the majority of the polar cap. We use new, high-resolution MOLA data and MOC and Viking images of the chasma region to assess hypotheses of origin of Chasma Boreale. These hypotheses include formation by glacial flow and ablati...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2006