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Geologic map of Mars
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Primary centers and secondary concentrations of tectonic activity through time in the western hemisphere of Mars
Five main stages of radial and concentric structures formed around Tharsis from the Noachian through the Amazonian as determined by geologic mapping of 24,452 structures within the stratigraphicExpand
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Astrobiology through the ages of Mars: the study of terrestrial analogues to understand the habitability of Mars.
Mars has undergone three main climatic stages throughout its geological history, beginning with a water-rich epoch, followed by a cold and semi-arid era, and transitioning into present-day arid andExpand
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Geology of the Thaumasia region, Mars: plateau development, valley origins, and magmatic evolution
Abstract We have constructed the complex geologic history of the Thaumasia region of Mars on the basis of detailed geologic mapping and relative-age dating of rock units and structure. The ThaumasiaExpand
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Environmental Studies with the Sensor Web: Principles and Practice
In 1997, the Sensor Web was conceived at the NASA/Jet Propulsion Laboratory (JPL) to take advantage of the increasingly inexpensive, yet sophisticated, mass consumer-market chips for the computer and telecommunication industries and use them to create platforms that share information among themselves and act in concert as a single instrument. Expand
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Episodic flood inundations of the northern plains of Mars
Throughout the recorded history of Mars, liquid water has distinctly shaped its landscape, including the prominent circum-Chryse and the northwestern slope valleys outflow channel systems, and theExpand
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Evidence for Hesperian impact-induced hydrothermalism on Mars
Abstract Several hydrated silicate deposits on Mars are observed within craters and are interpreted as excavated Noachian material. Toro crater (71.8°E, 17.0°N), located on the northern edge of theExpand
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Exploration of hydrothermal targets on Mars
Based on various lines of geologic, geomorphic, topographic, geophysical, spectral, and elemental evidence, we conclude that hydrothermal environments have certainly existed on Mars and are likely toExpand
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Ancient drainage basin of the Tharsis region, Mars: Potential source for outflow channel systems and putative oceans or paleolakes
Paleotopographic reconstructions based on a synthesis of published geologic information and high-resolution topography, including topographic profiles, reveal the potential existence of an enormousExpand
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Evolution of water reservoirs on Mars: Constraints from hydrogen isotopes in martian meteorites
Abstract Martian surface morphology implies that Mars was once warm enough to maintain persistent liquid water on its surface. While the high D/H ratios (∼6 times the Earth's ocean water) of theExpand
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