Browsing by Subject "Mars"
Now showing items 1-8 of 8
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Aeolian sediment transport pathways and aerodynamics at troughs on Mars
(2004)Interaction between wind regimes and topography can give rise to complex suites of aeolian landforms. This paper considers aeolian sediment associated with troughs on Mars and identifies a wider range of deposit types ... -
The dune effect on sand-transporting winds on Mars
(2015)Wind on Mars is a significant agent of contemporary surface change, yet the absence of in situ meteorological data hampers the understanding of surface-atmospheric interactions. Airflow models at length scales relevant to ... -
Dynamic river channel suggests a long-lived Noachian crater lake on Mars.
(2005)ecent images of the Noachian-age Holden Northeast Crater show spectacular meandering channels that form a complex 150 meter thick lacustrine river delta deposit confined to the northwest margin of the crater. We ... -
An Empirical Approach to Studying Debris Flows - Implications for Planetary Modeling Studies.
(2002)High-resolution images acquired by the Mars Global Survey Mars Orbiter Camera show gullies on the walls of impact craters and valley systems on Mars. Depositional aprons associated with these gullies have been interpreted ... -
Formation of calcium sulfate through the aggregation of sub-3 nanometre primary species
(2016)The formation pathways of gypsum remain uncertain. Here, using truly in situ and fast time-resolved small-angle X-ray scattering, we quantify the four-stage solution-based nucleation and growth of gypsum (CaSO4·2H2O), an ... -
Organic synthesis on Mars by electrochemical reduction of CO2
(American Association for the Advancement of Science, 2018)The sources and nature of organic carbon on Mars have been a subject of intense research. Steele et al. (2012) showed that 10 martian meteorites contain macromolecular carbon phases contained within pyroxene- and olivine-hosted ... -
Recent aeolian erosion and deposition in the north polar plateau of Mars.
(2007)Background: Planum Boreum, the north polar plateau of Mars, displays four extensive low-albedo regions covered with widespread se dimentary deposits that are thick enough to partly or completely suppress the signature ... -
The Role of Contemporary CO2 Sublimation as a Geomorphic Agent on Mars
(Trinity College Dublin. School of Natural Sciences. Discipline of Geography, 2019)The Martian surface is geomorphologically active, with a variety of mass?wasting, erosional and depositional features that form and change in the current climate. Many of these features have analogues on Earth (e.g. ...