A refined chronology of catastrophic outflow events in Ares Vallis, Mars

Warner, N. H.; Gupta, Sanjeev; Müller, Jan-Peter; Kim, Jung-Rack; Lin, Shih-Yuan

doi:10.1016/j.epsl.2009.09.008

Cited by 62 publications

(115 citation statements)

References 29 publications

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“…This intimate relationship between tectonic, volcanic, and aqueous activity augments current ideas about complexity of the Memnonia Fossae region and its relationship to Tharsis-related volcanism and tectonics. Ares Valles and the Kasei Valles and Echus Chasma system have been suggested to share this episodic behavior, but at a much earlier time in martian history (Warner et al, 2009;Chapman et al, 2010), indicating that Mangala Valles represents a younger expression of what may be a similar subsurface process. Detailed comparative studies of other more recently active fluvial-volcanic systems, such as Athabasca Valles (Jaeger et al, 2007(Jaeger et al, , 2010, may aid in determining the extent to which repeated fluvial and volcanic activity has extended into the Amazonian Period.…”

Section: Discussionmentioning

confidence: 99%

“…In particular, there are challenges associated with generating the substantial volumes of water required to erode and transport material out of these systems, which has prompted a wide range of alternative formation hypotheses including aqueous flooding (e.g., Baker and Milton, 1974;Sharp and Malin, 1975), volcanism (e.g., Leverington, 2004), glacial erosion (e.g., Lucchitta, 1982), eolian erosion (e.g., Cutts and Blasius, 1981), debris flows (e.g., Nummedal and Prior, 1981), or a combination of these processes (e.g., Chapman et al, 2003Chapman et al, , 2010Warner et al, 2009;McEwen et al, 2012). While lack of terrestrial analogs of comparable scale and complexity renders geomorphic comparison of large landscape features in these regions difficult (Mars Channel Working Group, 1983), new high-resolution images allow us to identify smaller surface features that provide clues about the processes that have influenced their overall surface geomorphology, allowing for reconstruction of their activity history.…”

Section: Introductionmentioning

confidence: 99%

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Episodes of fluvial and volcanic activity in Mangala Valles, Mars

Keske

Hamilton

McEwen

et al. 2015

Icarus

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A new mapping-based study of the 900-km-long Mangala Valles outflow system was motivated by the availability of new high-resolution images and continued debates about the roles of water and lava in outflow channels on Mars. This study uses photogeologic analysis, geomorphic surface mapping, cratering statistics, and relative stratigraphy. Results show that Mangala Valles underwent at least two episodes of fluvial activity and at least three episodes of volcanic activity during the Late Amazonian. The occurrence of scoured bedrock at the base of the mapped stratigraphy, in addition to evidence provided by crater retention ages, suggests that fluvial activity preceded the deposition of two of the volcanic units. Crater counts performed at 30 locations throughout the area have allowed us to construct the following timeline: (1) formation of Noachian Highlands and possible initial flooding event(s) before ~1 Ga, (2) emplacement of Tharsis lava flows in the valley from ~700 to 1000 Ma, (3) a megaflooding event at ~700-800 Ma sourced from Mangala Fossa, (4) valley fill by a sequence of lava flows sourced from Mangala Fossa ~400-500 Ma, (5) another megaflooding event from ~400 Ma, (6) a final phase of volcanism sourced from Mangala Fossa ~300-350 Ma, and (7) emplacement of eolian sedimentary deposits in the northern portion of the valley ~300 Ma. These results are consistent with alternating episodes of aqueous flooding and volcanism in the valles. This pattern of geologic activity is similar to that of other outflow systems, such as Kasei Valles, suggesting that there is a recurring, and perhaps coupled, nature of these processes on Mars.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Episodes of fluvial and volcanic activity in Mangala Valles, Mars

Keske

Hamilton

McEwen

et al. 2015

Icarus

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“…The technical detail of surface matching can be found in Mitchell and Chadwick (1999) and Mills et al (2003). The DTMs produced through that workflow were verified and played an important role in understanding geological evolution (Warner et al, 2009(Warner et al, , 2010a(Warner et al, , b, c, 2011.…”

Section: Martian Stereo Processingmentioning

confidence: 99%

Toward generalized planetary stereo analysis scheme—Prototype implementation with multi-resolution Martian stereo imagery

et al. 2013

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Stereo analysis of orbital imagery is highly valuable for scientific research in planetary surface. Thus, the processing of planetary stereo imagery has been progressed with various approaches and resulted in a series of uncontrolled topographic products. In order to fully utilize the data derived from image systems carried on various planetary orbiters, the generalized algorithms of stereo image processing and Digital Terrain Model (DTM) extraction have been developed. Based on Kim and Muller's approach (2009), the algorithms were updated employing the feed-forwarded model-based matcher and the generic sensor model. It is a sort of iterative stereo procedure delivering the reference data to next stage for 3D zoom-up. Thus the system is capable of processing various stereo data sets with the generic approach and achieves stable photogrammetric accuracy of resultant DTMs. To demonstrate the potential of this stereo processing routine, the DTMs obtained from various Mars orbital images covering some sample test sites were processed with the prototype processor. As the result, the processed DTMs clearly illustrated detailed geological features and high agreement with the height spots of Mars Obiter Laser Altimeter (MOLA). It was proved that the overall processing strategy in this paper was effective and the topographic products were accurate and reliable.

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“…The end of Noachian time records a dramatic change in martian fluvial systems; huge equatorial outflow channels from pressurized groundwater sources episodically debouched into the northern lowlands (Warner et al, 2009), perhaps forming transient seas. The ''chaos'' regions (enormous breccias) from which these outflows would have emerged locally contain layered sedimentary strata that host sulfate minerals.…”

Section: How Did Source-to-sink Sediment Transport Systems Evolve On mentioning

confidence: 99%