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Geological Processes and Evolution
GEOLOGICAL PROCESSES AND EVOLUTION J.W. HEAD1, R. GREELEY2, M.P. GOLOMBEK3, W.K. HARTMANN4, E. HAUBER5, R. JAUMANN5, P. MASSON6, G. NEUKUM5, L.E. NYQUIST7 and M.H. CARR8 1Department of Geological Sciences, Brown University, Providence, RI 02912 USA 2Department of Geology, Arizona State University, Tempe, AZ 85287 USA 3Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109 USA 4Planetary Science Institute, Tucson, AZ 85705 USA 5DLR Institute of Space Sensor Technology and Planetary Exploration, Rutherfordstrasse 2, 12484 Berlin-Aldershof, Germany 6University of Paris-Sud, 91405, Orsay Cedex France 7Johnson Space Center, Houston TX 77058 USA 8US Geological Survey, Branch of Astrogeological Studies, 345 Middlefield Road, Menlo Park, CA 94025 USA Received:14 February 2001; accepted:12 March 2001 Abstract. Geological mapping and establishment of stratigraphic relationships provides an overview of geological processes operating on Mars and how they have varied in time and space. Impact craters and basins shaped the crust in earliest history and as their importance declined, evidence of extensive regional volcanism emerged during the Late Noachian. Regional volcanism characterized the Early Hesperian and subsequent to that time, volcanism was largely centered at Tharsis and Elysium, con- tinuing until the recent geological past. The Tharsis region appears to have been largely constructed by the Late Noachian, and represents a series of tectonic and volcanic centers. Globally distributed structural features representing contraction characterize the middle Hesperian. Water-related pro- cesses involve the formation of valley networks in the Late Noachian and into the Hesperian, an ice sheet at the south pole in the middle Hesperian, and outflow channels and possible standing bodies of water in the northern lowlands in the Late Hesperian and into the Amazonian. -
Formation of Gullies on Mars: Link to Recent Climate History and Insolation Microenvironments Implicate Surface Water Flow Origin
Formation of gullies on Mars: Link to recent climate history and insolation microenvironments implicate surface water flow origin James W. Head*†, David R. Marchant‡, and Mikhail A. Kreslavsky*§ *Department of Geological Sciences, Brown University, Providence, RI 02912; ‡Department of Earth Sciences, Boston University, Boston, MA 02215; and §Department of Earth and Planetary Sciences, University of California, Santa Cruz, CA 95064 Edited by John Imbrie, Brown University, Providence, RI, and approved July 18, 2008 (received for review April 17, 2008) Features seen in portions of a typical midlatitude Martian impact provide a context and framework of information in which their crater show that gully formation follows a geologically recent origin might be better understood. Assessment of the stratigraphic period of midlatitude glaciation. Geological evidence indicates relationships in a crater interior typical of many gully occurrences that, in the relatively recent past, sufficient snow and ice accumu- provides evidence that gully formation is linked to glaciation and to lated on the pole-facing crater wall to cause glacial flow and filling geologically recent climate change that provided conditions for of the crater floor with debris-covered glaciers. As glaciation snow/ice accumulation and top-down melting. waned, debris-covered glaciers ceased flowing, accumulation The distribution of gullies shows a latitudinal dependence on zones lost ice, and newly exposed wall alcoves continued as the Mars, exclusively poleward of 30° in each hemisphere (2, 14) with location for limited snow/frost deposition, entrapment, and pres- a distinct concentration in the 30–50° latitude bands (e.g., 2, 7, ervation. Analysis of the insolation geometry of this pole-facing 8, 14, 18). -
Quantitative High-Resolution Reexamination of a Hypothesized
RESEARCH ARTICLE Quantitative High‐Resolution Reexamination of a 10.1029/2018JE005837 Hypothesized Ocean Shoreline in Cydonia Key Points: • We apply a proposed Mensae on Mars ‐ fi paleoshoreline identi cation toolkit Steven F. Sholes1,2 , David R. Montgomery1, and David C. Catling1,2 to newer high‐resolution data of an exemplar site for paleoshorelines on 1Department of Earth and Space Sciences, University of Washington, Seattle, WA, USA, 2Astrobiology Program, Mars • Any wave‐generated University of Washington, Seattle, WA, USA paleoshorelines should exhibit expressions identifiable in the residual topography from an Abstract Primary support for ancient Martian oceans has relied on qualitative interpretations of idealized slope hypothesized shorelines on relatively low‐resolution images and data. We present a toolkit for • Our analysis of these curvilinear features does not support a quantitatively identifying paleoshorelines using topographic, morphological, and spectroscopic paleoshoreline interpretation and is evaluations. In particular, we apply the validated topographic expression analysis of Hare et al. (2001, more consistent with eroded https://doi.org/10.1029/2001JB000344) for the first time beyond Earth, focusing on a test case of putative lithologies shoreline features along the Arabia level in northeast Cydonia Mensae, as first described by Clifford and Supporting Information: Parker (2001, https://doi.org/10.1006/icar.2001.6671). Our results show these curvilinear features are • Supporting Information S1 inconsistent with a wave‐generated shoreline interpretation. The topographic expression analysis identifies a few potential shoreline terraces along the historically proposed contacts, but these tilt in different directions, do not follow an equipotential surface (even accounting for regional tilting), and are Correspondence to: not laterally continuous. -
Mapping the Senses/ Charting Experience
Christian Nold Suzan Shutan Eve Ingalls Chip Lord Susan Sharp Pat Steir Sharon Horvath Denis Wood John Cage Sarah Amos Josephine Napurrula Heidi Whitman Leila Daw Adriana Lara Ree Morton Merce Cunningham Christo & Jean Claude GR UND TRUTH: Mapping the Senses/ Charting Experience Curated by Robbin Zella and Susan Sharp January 13 - February 10, 2012 The Map Land lies in water; it is a shadowed green, Shadows, or are they shallows, at its edges showing the line of long sea-weeded ledges where weeds hang to the simple blue from green. Ground Truth: Mapping the Senses/ Or does the land lean down to lift the sea from under, Charting Experience Drawing it unperturbed around itself? Along the fine tan sandy shelf Looking out into the wider-world requires us to first develop black and white and arrange them so that the larger pattern, the 2 Is the land tugging at the sea from under? a method of finding our way -- signs and symbols that lead pattern of the neighborhood itself, can emerge.” us to new destinations; and second, to rely on memory—an But neighborhoods, and the activities that happen there, can also The shadow of Newfoundland lies flat and still. internalized map. The first way situates us within a space as it relates to the cardinal points on a compass—north, south, change over time. Suzan Shutan’s installation, Sex in the Suburbs, Labrador’s yellow, where the moony Eskimo east, and west; and the second, is in relation to our own home- maps the growing sex-for-hire industry that is slowly taking root. -
Noachian Highland Crater Degradation on Mars: Assessing the Role of Regional Snow and Ice Deposits in a Cold and Icy Early Mars
45th Lunar and Planetary Science Conference (2014) 1077.pdf NOACHIAN HIGHLAND CRATER DEGRADATION ON MARS: ASSESSING THE ROLE OF REGIONAL SNOW AND ICE DEPOSITS IN A COLD AND ICY EARLY MARS. D. K. Weiss1 and J. W. Head1, 1Department of Geological Sciences, Brown University, Providence, RI 02912, U.S.A. ([email protected]) Introduction: The faint young sun [1,2] has led to the supposition that early Mars was cold [3-5]. The pres- ence of valley networks and the degraded state of high- land craters, however, has led many investigators to sug- gest that the martian climate in the Noachian was warm and wet, and that precipitation [6] in the form of rainfall [7] and fluvial activity are the likely causes of crater deg- radation. Recent climate models, however, have shown that climactic conditions in the Noachian could not have supported liquid water precipitation [8,9], and that re- gional snow and ice deposits, much like those inferred to be present in the Amazonian (Fig. 1) [10], pervaded the Noachian highlands [11]. Recent climate models have shown however, that unlike the Amazonian, slightly in- creased atmospheric pressures in the Noachian could allow the atmosphere to behave adiabatically [8], a sce- nario in which the Noachian southern highlands acts as a Figure 2. Typical Noachian highland crater and characteristics. cold trap and preferentially accumulates atmospheric suggests that they have been heavily degraded [7], alt- snow and ice deposits [11, 12]. Martian Noachian high- hough the mode of degradation has been debated (see land craters may give insight into conditions on early [7]). -
“Mining” Water Ice on Mars an Assessment of ISRU Options in Support of Future Human Missions
National Aeronautics and Space Administration “Mining” Water Ice on Mars An Assessment of ISRU Options in Support of Future Human Missions Stephen Hoffman, Alida Andrews, Kevin Watts July 2016 Agenda • Introduction • What kind of water ice are we talking about • Options for accessing the water ice • Drilling Options • “Mining” Options • EMC scenario and requirements • Recommendations and future work Acknowledgement • The authors of this report learned much during the process of researching the technologies and operations associated with drilling into icy deposits and extract water from those deposits. We would like to acknowledge the support and advice provided by the following individuals and their organizations: – Brian Glass, PhD, NASA Ames Research Center – Robert Haehnel, PhD, U.S. Army Corps of Engineers/Cold Regions Research and Engineering Laboratory – Patrick Haggerty, National Science Foundation/Geosciences/Polar Programs – Jennifer Mercer, PhD, National Science Foundation/Geosciences/Polar Programs – Frank Rack, PhD, University of Nebraska-Lincoln – Jason Weale, U.S. Army Corps of Engineers/Cold Regions Research and Engineering Laboratory Mining Water Ice on Mars INTRODUCTION Background • Addendum to M-WIP study, addressing one of the areas not fully covered in this report: accessing and mining water ice if it is present in certain glacier-like forms – The M-WIP report is available at http://mepag.nasa.gov/reports.cfm • The First Landing Site/Exploration Zone Workshop for Human Missions to Mars (October 2015) set the target -
THE BUOYS Race Day on US Bellingham Bay, P.14 SOFTLY INSIDE Roberta Flack's Superstar Success, P.08 out Dinner with a View, P.34 the Art of Modulation: 7:30Pm, St
The Gristle, 3.Ɇ * Summer School, 3.ɁɆ * Film Shorts, 3.ɂɆ c a s c a d i a REPORTING FROM THE HEART OF CASCADIA WHATCOM *SKAGIT*ISLAND COUNTIES {06.17.15}{#24}{V.10}{FREE} THE SECOND PAYCHECK What's it worth to live here?, P.08 Between KILLING THE BUOYS Race day on US Bellingham Bay, P.14 SOFTLY INSIDE Roberta Flack's superstar success, P.08 OUT Dinner with a view, P.34 The Art of Modulation: 7:30pm, St. Paul’s Episcopal cascadia Church 34 Week This FILM FOOD FOOD A glance at this Grease: Dusk, Fairhaven Village Green COMMUNITY 27 week’s happenings Antique Fair: 9am-5pm, Christianson’s Nursery, Mount Vernon Family Activity Day: 10am-4pm, Whatcom Museum’s B-BOARD B-BOARD Lightcatcher Building Berry Dairy Days: Through Sunday, throughout Burlington 24 GET OUT FILM Feed the Need 5K: 9am, Hovander Homestead Park, Ferndale 20 Boat Show & Swap Meet: 9am-4pm, La Conner Marina Pet Parade: 11am, Maritime Heritage Park MUSIC Fairy Day: 11am-2pm, Garden Spot Nursery Sin & Gin Tour: 7pm, downtown Bellingham 18 ART FOOD Pancake Breakfast: 8-11am, Ferndale Senior Center Mount Vernon Farmers Market: 9am-2pm, Water- 16 front Plaza Anacortes Farmers Market: 9am-2pm, Depot Arts STAGE Center Bellingham Farmers Market: 10am-3pm, Depot Market Square 14 Farm Fiesta: 11am-7pm, Viva Farmers, Burlington Bring your four-legged, feathered, finned and furry friends to Bellingham Parks VISUAL ARTS GET OUT and Rec’s inaugural Pet Parade Sat., June 20 at Maritime Heritage Park Art Auction: 4-9pm, Museum of Northwest Art SUNDAY 21 12 [06. -
Martian Perched Craters and Large Ejecta Volume: Evidence for Episodes of Deflation in the Northern Lowlands
Meteoritics & Planetary Science 41, Nr 10, 1647–1658 (2006) Abstract available online at http://meteoritics.org Martian perched craters and large ejecta volume: Evidence for episodes of deflation in the northern lowlands Sandrine MERESSE1*, François COSTARD1, Nicolas MANGOLD1, David BARATOUX2, and Joseph M. BOYCE3 1Laboratoire IDES-Orsay, Université Paris-Sud, UMR 8148, Bat 509, 91405 Orsay, France 2Observatoire Midi-Pyrénées, UMR 5562, 31400 Toulouse, France 3Hawai’i Institute of Geophysics and Planetology, University of Hawai’i at Manoa, Honolulu, Hawai’i, USA *Corresponding author. E-mail: [email protected] (Received 28 October 2005; revision accepted 30 June 2006) Abstract–The northern lowland plains, such as those found in Acidalia and Utopia Planitia, have high percentages of impact craters with fluidized ejecta. In both regions, the analysis of crater geometry from Mars Orbiter Laser Altimeter (MOLA) data has revealed large ejecta volumes, some exceeding the volume of excavation. Moreover, some of the crater cavities and fluidized ejecta blankets of these craters are topographically perched above the surrounding plains. These perched craters are concentrated between 40 and 70°N in the northern plains. The atypical high volumes of the ejecta and the perched craters suggest that the northern lowlands have experienced one or more episodes of resurfacing that involved deposition and erosion. The removal of material, most likely caused by the sublimation of ice in the materials and their subsequent erosion and transport by the wind, is more rapid on the plains than on the ejecta blankets. The thermal inertia difference between the ejecta and the surrounding plains suggests that ejecta, characterized by a lower thermal inertia, protect the underneath terrain from sublimation. -
Estimating the Volume of Glacial Ice on Mars
EPSC Abstracts Vol. 8, EPSC2013-111, 2013 European Planetary Science Congress 2013 EEuropeaPn PlanetarSy Science CCongress c Author(s) 2013 Estimating the volume of glacial ice on Mars: Geographic and geometric constraints on concentric crater fill, lineated valley fill, and lobate debris aprons along the Martian dichotomy boundary C. Fassett (1), J. Levy (2) and J. Head (3) (1) Mount Holyoke College, South Hadley, MA, USA (2) University of Texas at Austin, USA (3) Brown University, Providence, RI, USA ([email protected]) Abstract Once the spatial extent of these features was established, we are using geometric tools to infer the Landforms inferred to have formed from volumetric extent of glacial landforms. For example, glacial processes are abundant on Mars and include for CCF, several morphometric properties were features such as concentric crater fill (CCF), lobate extracted from catalogues of northern hemisphere debris aprons (LDA), and lineated valley fill (LVF). crater morphologies [13] including: crater diameter, Here, we present new mapping of the spatial extent d and measured crater depth, Dm. CCF fill radius, rf of these landforms derived from CTX and THEMIS is measured from CTX images of the crater, VIS image data, and new geometric constraints on measured along two orthogonal profiles that span the the volume of glaciogenic fill material present in spatial limit of “brain terrain” surface texture or concentric crater fill deposits. concentric surface lineations. Using these quantities measured from MOLA 1. Introduction and CTX data, relationships between fresh-crater Debris-covered glacial landforms such as depths and diameters on Mars [14], coupled with CCF, LVF, and LDA are widespread on Mars and elementary calculus (solids of rotation), permit us to have been long inferred to represent locations of make quantitative estimates of CCF fill volume (note: abundant ground ice preserved at mid-latitude this method does not distinguish between prior fill locations [1-12]. -
16. Ice in the Martian Regolith
16. ICE IN THE MARTIAN REGOLITH S. W. SQUYRES Cornell University S. M. CLIFFORD Lunar and Planetary Institute R. O. KUZMIN V.I. Vernadsky Institute J. R. ZIMBELMAN Smithsonian Institution and F. M. COSTARD Laboratoire de Geographie Physique Geologic evidence indicates that the Martian surface has been substantially modified by the action of liquid water, and that much of that water still resides beneath the surface as ground ice. The pore volume of the Martian regolith is substantial, and a large amount of this volume can be expected to be at tem- peratures cold enough for ice to be present. Calculations of the thermodynamic stability of ground ice on Mars suggest that it can exist very close to the surface at high latitudes, but can persist only at substantial depths near the equator. Impact craters with distinctive lobale ejecta deposits are common on Mars. These rampart craters apparently owe their morphology to fluidhation of sub- surface materials, perhaps by the melting of ground ice, during impact events. If this interpretation is correct, then the size frequency distribution of rampart 523 524 S. W. SQUYRES ET AL. craters is broadly consistent with the depth distribution of ice inferred from stability calculations. A variety of observed Martian landforms can be attrib- uted to creep of the Martian regolith abetted by deformation of ground ice. Global mapping of creep features also supports the idea that ice is present in near-surface materials at latitudes higher than ± 30°, and suggests that ice is largely absent from such materials at lower latitudes. Other morphologic fea- tures on Mars that may result from the present or former existence of ground ice include chaotic terrain, thermokarst and patterned ground. -
Glacial and Gully Erosion on Mars: a Terrestrial Perspective Susan Conway, Frances Butcher, Tjalling De Haas, Axel A.J
Glacial and gully erosion on Mars: A terrestrial perspective Susan Conway, Frances Butcher, Tjalling de Haas, Axel A.J. Deijns, Peter Grindrod, Joel Davis To cite this version: Susan Conway, Frances Butcher, Tjalling de Haas, Axel A.J. Deijns, Peter Grindrod, et al.. Glacial and gully erosion on Mars: A terrestrial perspective. Geomorphology, Elsevier, 2018, 318, pp.26-57. 10.1016/j.geomorph.2018.05.019. hal-02269410 HAL Id: hal-02269410 https://hal.archives-ouvertes.fr/hal-02269410 Submitted on 22 Aug 2019 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. *Revised manuscript with no changes marked Click here to view linked References 1 Glacial and gully erosion on Mars: A terrestrial perspective 2 Susan J. Conway1* 3 Frances E. G. Butcher2 4 Tjalling de Haas3,4 5 Axel J. Deijns4 6 Peter M. Grindrod5 7 Joel M. Davis5 8 1. CNRS, UMR 6112 Laboratoire de Planétologie et Géodynamique, Université de Nantes, France 9 2. School of Physical Sciences, Open University, Milton Keynes, MK7 6AA, UK 10 3. Department of Geography, Durham University, South Road, Durham DH1 3LE, UK 11 4. Faculty of Geoscience, Universiteit Utrecht, Heidelberglaan 2, 3584 CS Utrecht, The Netherlands 12 5. -
35247, and –40247 Quadrangles, Reull Vallis Region of Mars by Scott C
Prepared for the National Aeronautics and Space Administration Geologic Map of MTM –30247, –35247, and –40247 Quadrangles, Reull Vallis Region of Mars By Scott C. Mest and David A. Crown Pamphlet to accompany Scientific Investigations Map 3245 65° 65° MC-01 MC-05 MC-07 30° MC-06 30° MC-12 MC-15 MC-13 MC-14 0° 45° 90° 135° 180° 0° 0° MC-21 MC-22 MC-20 MC-23 SIM 3245 -30° MC-28 -30° MC-27 MC-29 MC-30 -65° -65° 2014 U.S. Department of the Interior U.S. Geological Survey Contents Introduction.....................................................................................................................................................1 Physiographic Setting ...................................................................................................................................1 Data .............................................................................................................................................................2 Contact Types .................................................................................................................................................2 Fluvial Features ..............................................................................................................................................2 Waikato Vallis ........................................................................................................................................3 Eridania Planitia ....................................................................................................................................4