منابع مشابه
Southern Circumpolar Crater Ice Deposits on Mars
Introduction: Layered deposits at the poles of Mars are thought to preserve a record of past climatic conditions in up to 3 km of water ice and dust. Just beyond the extent of the south polar layered deposits (SPLD), dozens of impact craters in the heavilycratered southern highlands contain mounds of fill material. Many of these crater-filling deposits (CFDs) appear to be outliers of the main S...
متن کاملPhillips Deposits of Mars Ice Deposits Sequestered in the South Polar Layered 2 Massive CO
clicking here. colleagues, clients, or customers by , you can order high-quality copies for your If you wish to distribute this article to others here. following the guidelines can be obtained by Permission to republish or repurpose articles or portions of articles ): May 13, 2011 www.sciencemag.org (this infomation is current as of The following resources related to this article are availabl...
متن کاملExternal Sources of Water for Mercury’s Putative Ice Deposits
Radar images have revealed the possible presence of ice deposits in Mercury’s polar regions. Although thermal models indicate that water ice can be stable in permanently shaded regions near Mercury’s poles, the ultimate source of the water remains unclear. We use stochastic models and other theoretical methods to investigate the role of external sources in supplying Mercury with the requisite a...
متن کاملDecameter thick remnant glacial ice deposits on Mars
OnMars, a smooth, draping unit—the “latitude-dependant mantle” (LDM), believed to comprise meter thick layers of dust and ice—extends from the midlatitudes to the poles, covering at least 23% of the surface. We show that the LDM can be 30m deep on pole-facing crater walls, and by measuring the erosional and depositional volumes of small gullies that incise these LDM deposits, we show that it mu...
متن کاملClosed System Chemistry inside Massive Ice Deposits at Meridiani Planum
Introduction: The discoveries made by the Opportunity rover at Meridiani Planum have provided a new view of the chemistry of the martian surface. These results have also spawned a number of different interpretations. These different interpretations of the chemistry of the Meridiani sulphate-bearing rocks can be categorized into two main groups. The first model suggests that the rocks are sedime...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Franklin Institute
سال: 1899
ISSN: 0016-0032
DOI: 10.1016/s0016-0032(99)90250-8