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Martian Gullies and their Earth Analogues (2019)

Geological Society (London, U.K.) ; Conway, Susan J. ; Carrivick, Jonathan L. ; [et al.]

London : The Geological Society

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Keywords: terrestrial analogues ; gully ; gully formation ; Mars

Description / Table of Contents: Martian gullies and their Earth analogues: introduction / Susan J. Conway, Tjalling de Haas, Tanya N. Harrison, Paul A. Carling and Jonathan Carrivick / Geological Society, London, Special Publications, 467, 1-6, 7 December 2018, https://doi.org/10.1144/SP467.15 --- Martian gullies: a comprehensive review of observations, mechanisms and insights from Earth analogues / Susan J. Conway, Tjalling de Haas and Tanya N. Harrison / Geological Society, London, Special Publications, 467, 7-66, 25 October 2018, https://doi.org/10.1144/SP467.14 --- Martian remote sensing --- The formation of gullies on Mars today / Colin M. Dundas, Alfred S. McEwen, Serina Diniega, Candice J. Hansen, Shane Byrne and Jim N. McElwaine / Geological Society, London, Special Publications, 467, 67-94, 27 November 2017, https://doi.org/10.1144/SP467.5 --- Dune-slope activity due to frost and wind throughout the north polar erg, Mars / Serina Diniega, Candice J. Hansen, Amanda Allen, Nathan Grigsby, Zheyu Li, Tyler Perez and Matthew Chojnacki / Geological Society, London, Special Publications, 467, 95-114, 27 November 2017, https://doi.org/10.1144/SP467.6 --- Morphological characterization of landforms produced by springtime seasonal activity on Russell Crater megadune, Mars / Gwenaël Jouannic, Susan J. Conway, Julien Gargani, François Costard, Marion Massé, Olivier Bourgeois, John Carter, Frédéric Schmidt, Chiara Marmo, Gian G. Ori, Marion Nachon and Kelly Pasquon / Geological Society, London, Special Publications, 467, 115-144, 29 October 2018, https://doi.org/10.1144/SP467.16 --- Are different Martian gully morphologies due to different processes on the Kaiser dune field? / Kelly Pasquon, Julien Gargani, Marion Nachon, Susan J. Conway, Marion Massé, Gwenaël Jouannic, Matthew R. Balme, François Costard and Mathieu Vincendon / Geological Society, London, Special Publications, 467, 145-164, 18 July 2018, https://doi.org/10.1144/SP467.13 --- Time will tell: temporal evolution of Martian gullies and palaeoclimatic implications / T. de Haas, S. J. Conway, F. E. G. Butcher, J. Levy, P. M. Grindrod, T. A. Goudge and M. R. Balme / Geological Society, London, Special Publications, 467, 165-186, 27 November 2017, https://doi.org/10.1144/SP467.1 --- New slope-normalized global gully density and orientation maps for Mars / S. J. Conway, T. N. Harrison, R. J. Soare, A. W. Britton and L. J. Steele / Geological Society, London, Special Publications, 467, 187-197, 27 November 2017, https://doi.org/10.1144/SP467.3 --- Thermal inertia variations from gully and mass-wasting activity in Gasa crater, Mars / Tanya N. Harrison, Livio L. Tornabene, Gordon R. Osinski and Susan J. Conway / Geological Society, London, Special Publications, 467, 199-210, 4 December 2017, https://doi.org/10.1144/SP467.8 --- Periglacial complexes and the deductive evidence of ‘wet’-flows at the Hale impact crater, Mars / R. J. Soare, S. J. Conway, C. Gallagher, J. M. Dohm and D. Reiss / Geological Society, London, Special Publications, 467, 211-231, 6 March 2018, https://doi.org/10.1144/SP467.7 --- Geomorphological analysis of gullies on the central peak of Lyot Crater, Mars / Virginia C. Gulick, Natalie Glines, Shawn Hart and Patrick Freeman / Geological Society, London, Special Publications, 467, 233-265, 5 December 2018, https://doi.org/10.1144/SP467.17 --- Earth analogues --- Debris flows and water tracks in northern Victoria Land, continental East Antarctica: a new terrestrial analogue site for gullies and recurrent slope lineae on Mars / E. Hauber, C. Sassenroth, J.-P. de Vera, N. Schmitz, R. Jaumann, D. Reiss, H. Hiesinger and A. Johnsson / Geological Society, London, Special Publications, 467, 267-287, 3 April 2018, https://doi.org/10.1144/SP467.12 --- Gully formation in the McMurdo Dry Valleys, Antarctica: multiple sources of water, temporal sequence and relative importance in gully erosion and deposition processes / James L. Dickson, James W. Head, Joseph S. Levy, Gareth A. Morgan and David R. Marchant / Geological Society, London, Special Publications, 467, 289-314, 4 December 2017, https://doi.org/10.1144/SP467.4 --- Gullies and debris-flows in Ladakh Himalaya, India: a potential Martian analogue / Rishitosh K. Sinha, S. Vijayan, Anil D. Shukla, Priyabrata Das and Falguni Bhattacharya / Geological Society, London, Special Publications, 467, 315-342, 7 February 2018, https://doi.org/10.1144/SP467.9 --- Laboratory simulations --- CO2 sublimation in Martian gullies: laboratory experiments at varied slope angle and regolith grain sizes / Matthew E. Sylvest, John C. Dixon, Susan J. Conway, Manish R. Patel, Jim N. McElwaine, Axel Hagermann and Adam Barnes / Geological Society, London, Special Publications, 467, 343-371, 26 February 2018, https://doi.org/10.1144/SP467.11 --- Downslope sediment transport by boiling liquid water under Mars-like conditions: experiments and potential implications for Martian gullies / Clémence Herny, Susan J. Conway, Jan Raack, Sabrina Carpy, Tanguy Colleu-Banse and Manish R. Patel / Geological Society, London, Special Publications, 467, 373-410, 6 February 2018, https://doi.org/10.1144/SP467.10 --- An experimental investigation into Martian gully formation: a slush-flow model / Katherine S. Auld and John C. Dixon / Geological Society, London, Special Publications, 467, 411-424, 27 November 2017, https://doi.org/10.1144/SP467.2

Pages: Online-Ressource (VI, 434 Seiten) , Illustrationen, Diagramme

ISBN: 9781786203625

URL: https://sp.lyellcollection.org/content/467/1

Language: English

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A consideration of the dune:antidune transition in fine gravel (2002)

Carling, Paul A. ; Shvidchenko, Andrey B.

Oxford, UK : Blackwell Science Ltd

Sedimentology 49 (2002), S. 0

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ISSN: 1365-3091

Source: Blackwell Publishing Journal Backfiles 1879-2005

Topics: Geosciences

Notes: Hydraulic data defining the dune:antidune transition in fine gravel are compared with potential flow theory, and information is drawn from published experiments and field-based studies. Attention is given to both transitional bedforms and the development of downstream-migrating antidunes. In the latter case, most data pertain to sand beds and not to gravel. Empirical data provide some weak support for the theoretical notion that the transition occurs at progressively lower Froude numbers at greater relative depths. Although a critical Froude number of 0·84 may reasonably be applied for the beginning of the dune to antidune transformation, lag effects (and a possible depth limitation) ensure that transitional bedforms may persist across a broad range of Froude numbers from 0·5 to 1·8. This latter observation has great relevance for palaeohydraulic estimates derived from outcrop data. Whereas the application of theoretical bedform existence fields, based upon potential flow theory, to fine gravel was previously purely speculative, the addition of experimental and field data to these plots provides a degree of confidence in applying stability theory to practical geological problems. For the first time, laboratory data pertaining to downstream-migrating gravel antidunes are compared with theory. These bedforms have been reported from certain experimental near-critical flows above sand or gravel beds, but have been observed infrequently in natural streams. However, there are no detailed studies from natural rivers and only a few contentious identifications from outcrops. Nevertheless, the limited hydraulic data conform to theoretical expectations.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1046/j.1365-3091.2002.00496.x

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Grain sorting in gravel-bed streams and the choice of particle sizes for flow-competence evaluations (1991)

KOMAR, PAUL D. ; CARLING, PAUL A.

Oxford, UK : Blackwell Publishing Ltd

Sedimentology 38 (1991), S. 0

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ISSN: 1365-3091

Source: Blackwell Publishing Journal Backfiles 1879-2005

Topics: Geosciences

Notes: Flow-competence assessments of floods have been based on the largest particle sizes transported, and yield either the mean flow stress, mean velocity, or discharge per unit flow width. The use of extreme particle sizes has potential problems in that they may have been transported by debris flows rather than by the flood, it may be difficult to locate the largest particles within the flood deposits, and there are questions concerning how representative one or a few large particles might be of the transported sediments and therefore of the flood hydraulics. Such problems would be eliminated for the most part if competence evaluations are based on median grain sizes of transported sediments, or perhaps on some coarse percentile that is established by a reasonable number of grains. In order to examine such issues, the gravel-transport data of Milhous from Oak Creek, Oregon, and of Carling from Great Eggleshope Beck, England, have been analysed in terms of changing grain-size percentiles with varying flow stresses. A comparison between these two data sets is of added interest because the bed material in Oak Creek is segregated into well-developed pavement and subpavement layers, while such a layering of bed materials is largely absent in Great Eggleshope Beck.The analyses show that the trend of increasing sizes of the largest particles in the bedload samples (diameter Dm) with increasing flow stresses is consistent with similar dependencies based on sieve percentiles ranging from the medians (D50) to the 95th percentiles (D95). This indicates that the largest particles are an integral part of the overall distributions of bedload grain sizes, and respond to changing flow hydraulics along with the rest of the size distribution. In Oak Creek, the median grain size shows the largest change with increasing flow stresses, followed by D60, and so on to D95 which shows the smallest change. The variations in Dm continue this trend, and are similar to those for D95. This systematic variation of grain-size percentiles in Oak Creek is consistent with changes in the overall distributions which tend to be symmetrical and Gaussian for low discharges, but become skewed Rosin distributions for high discharges. In contrast, in Great Eggleshope Beck the several percentiles and Dm show the same rate of shift to coarser sizes as flow stresses increase. This results in part from differences in sampling techniques wherein the bedload samples from Great Eggleshope Beck represent a complete flood event, while shorterterm samples at a specific flow stage were obtained in Oak Creek. As a result of the integrated sampling in Great Eggleshope Beck, the bedload grain-size distributions are more complex, commonly with a bimodal pattern. However, after accounting for differences in sampling schemes in the two streams, contrasting patterns in changing grain-size distributions remain, and these are concluded to reflect grain sorting differences as the bedload grain-size distributions approach the distributions of the bed materials. It is surprising that if criteria commonly employed to demonstrate the equal mobility of different grain sizes are used in the comparison, then Great Eggleshope Beck is far closer to this condition in spite of its minimal development of a pavement. It is concluded that the respective shapes of the bed-material grain-size distributions, in particular their degrees of skewness, are more important to the observed sorting patterns than are the effects of a pavement layer regulating grain entrapment to produce an equal mobility of different grain sizes. Therefore, the comparison has established that flow-competence relationships will differ from one stream to another, depending on the pattern of grain sorting which is a function of the bedmaterial grain-size distribution.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1111/j.1365-3091.1991.tb00363.x

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