Abstract
Most of the southern hemisphere of Mars is densely cratered and stands 1–3 km above the topographic datum. The northern hemisphere is more sparsely cratered and elevations are generally below the datum. A broad rise, the Tharsis bulge, centered at 14° S, 101° W, is 8000 km across and 10 km above the datum at its summit. The densely cratered terrain has two main components; very ancient crust, nearly saturated with large craters, and younger intercrater plains. In many areas the older unit is fractured and extensively dissected by small channels. The younger intercrater plains are distinctly layered in places and less dissected, less fractured, and less cratered. Both units probably date from very early in the planet's history. Cratered plains cover much of the northern hemisphere and are highly variegated. Those around the large volcanoes are covered with numerous volcanic flows whereas in other areas the plains are featureless except for craters and lunar mare-like ridges. Between 40° N and 60° N the plains are complex with various kinds of striped and patterned ground, low escarpments, and isolated irregularly shaped mesas. Their peculiar morphology has been attributed, in part, to the repeated deposition and removal of volatile-rich debris layers. Along the boundary between the northern plains and the densely cratered terrain to the south, the plains and cratered terrain complexly inter-finger. The old terrain forms the high ground and appears to have undergone mass wasting on a large scale. In several areas, particularly south of Chryse Planitia, the old, cratered surface has collapsed to form chaotic terrain. Large channels, tens of kilometers wide and hundreds of kilometers long, with numerous characteristics suggestive of catastrophic flooding, commonly emerge from the chaotic areas. Much of the area between 50° W and 180° W and 50° N and 50° S is cut by fractures radial to the center of the Tharsis bulge. The equatorial canyon system, Valles Marineris, is radial to the bulge and appears to have formed largely by faulting along the radial fractures, although it has also been extensively modified by various mass wasting and fluvial processes. Most but not all volcanoes are in the Tharsis and Elysium regions. The largest resemble terrestrial shield volcanoes except for scale; the edifices, flow features and calderas are all far larger than their terrestrial counterparts. Most impact craters on Mars are surrounded by layers of ejecta, each with a distil ridge. This unique morphology coupled with other surface characteristics suggests large amounts of ground ice. Layered deposits at both poles appear to be relatively young, volatile-rich, aeolian deposits. The north pole is also surrounded by a continuous belt of dunes several tens of kilometers across. In most other places, aeolian modification of the surface at a scale of several tens of meters appears slight despite annual global dust storms.
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Allèsre, C. J., Courtillot, V. E., and Matteur, M.: 1974, Trans. Am. Geophys. Union (EOS) 55, 341.
Anderson, D. W., Gaffney, E. S., and Low, P. F.: 1967, Science 155, 319.
Anderson, D. H., Gatto, L. W., and Usolini, F.: 1973, ‘An Examination of Mariner 6 and 7 Imagery for Evidence of Permafrost Terrain on Mars’, in Permafrost, The North American Contribution to the Second International Conference, pp. 449–508, Natl. Acad. Sci., Washington, D.C.
Arvidson, R. E.: 1972, Geol. Soc. Am. Bull. 83, 1503.
Arvidson, R. E.: 1974a, Icarus 21, 12.
Arvidson, R. E.: 1974b, Icarus 22, 264.
Arvidson, R. E.: 1978, ‘Viking Implications for Martian Aeolian Dynamics’, NASA Tech. Memo 79729, pp. 238–240.
Arvidson, R. E., Carusi, A., Coradini, A., Coradini, M., Fulchisnoni, M., Federico, C., Funicello, R., and Salomone, M.: 1976, Icarus 27, 503.
Bagnold, R. A.: 1941, The Physics of Blown Sand and Desert Dunes, Methuen and Co., London, 265 pp.
Baker, V. R.: 1977, ‘Viking-Slashed at the Martian Scabland Problem’, NASA Tech. Memo. TM-X-3511, pp. 169–172.
Baker, V. R. and Milton, D. J.: 1974, Icarus 23, 27.
Ballou, E. V., Wood, P. C., Wydeven, T., Lehwalt, M. E., and Mack, R. E.: 1978, Nature 271, 644.
Belcher, D., Veverka, J., and Sasan, C.: 1971, Icarus 15, 241.
Blasius K. R.: 1976a, ‘Topical Studies of the Geology of the Tharsis Region of Mars’, Calif. Inst. Tech., Ph.D., Thesis, 85 pp.
Blasius, K. R.: 1976b, Icarus 29, 343.
Blasius, K. R., Cutts, J. A., Guest, J. E., and Masursky, H.: 1977, J. Geophys. Res. 82, 4067.
Blasius, K. R., Cutts, J. A., and Roberts, R. J.: 1978, ‘Large Scale Erosive Flows Associated with Chryse Planitia, Mars: Source and Sink Relationships’, NASA Tech. Memo. 79729, pp. 275–276.
Boyce, J. M. and Roddy, D. J.: 1978, ‘Martian Rampart Craters: Crater Processes That May Affect Diameter-Frequency Distributions’, NASA Tech. Memo 79729, pp. 162–165.
Bretz, J. H.: 1969, J. Geology 17, 505.
Carr, M. H.: 1973, J. Geophys. Res. 78, 4049.
Carr, M. H.: 1974a, J. Geophys. Res. 79, 3943.
Carr, M. H.: 1974b, Icarus 22, 1.
Carr, M. H.: 1975, Sci. Am. 2344, 32.
Carr, M. H.: 1979, J. Geophys. Res. 84, 2995.
Carr, M. H. and Schaber, G. G.: 1977, J. Geophys. Res. 82, 4039.
Carr, M. H., Masursky, H., and Saunders, R. S.: 1973, J. Geophys. Res. 78, 4031.
Carr, M. H., Blasius, K. R., Greeley, R., Guest, J. E., and Murray, J. E.: 1977, J. Geophys. Res. 82, 3985.
Carr, M. H., Masursky, H., Baum, W. A., Blasius, K. R., Briggs, G. A., Cutts, J. A., Duxbury, T., Greeley, R., Guest, J. E., Smith, B. A., Soderblom, L. A., Veverka, J., and Wellman, J. B.: 1976, Science 193, 766.
Chapman, C. R.: 1974, Icarus 22, 264.
Chapman, C. R., Pollack, J. B., and Sagan, C.: 1969, Astron. J. 74, 1039.
Christenson, E. J.: 1975, J. Geophys. Res. 80, 2909.
Cintala, M. J., Head, J. W., and Mutch, T. A.: 1975, Trans. Am. Geophys. Union (EOS) 56, 389.
Clark, B. R. and Mullin, R. P.: 1976, Icarus 27, 215.
Collins: S. A.: 1971, ‘The Mariner 6 and 7 Pictures of Mars’, NASA SP-263, 159 pp.
Courtillot, V. C., Allegre, C. J., and Matteur, M.: 1975, Earth Planetary Sci. Letters 25, 279.
Crumpler, L. S. and Aubele, J. C.: 1978, Icarus 34, 496.
Cutts, J. A.: 1973a, J. Geophys. Res. 78, 4231.
Cutts, J. A.: 1973b, J. Geophys. Res. 78, 4211.
Cutts, J. A. and Michalsky, W. L.: 1974, ‘Mars: an New Type of Landscape Fealure in the South Polar Region’ (abs.), Am. Geophys. Union mtg., San Francisco.
Cutts, J. A. and Smith, R. S. U.: 1973, J. Geophys. Res. 78, 4139.
Cutts, J. A., Blasius, K. R., Briggs, G. A., Carr, M. H., Greeley, R., and Masusky, H.: 1976, Science 194, 1329.
Cutts, J. A., Roberts, W. J., and Blasius, K. R.: 1978a, Lunar and Planetary Science IX, Pt. 1, 20.
Cutts, J. A., RoberTs, W. J., and Blasius, K. R.: 1978b, Lunar and Planetary Science IX, Pt. 1, 206.
Dial, A. L.: 1978, ‘The Viking 1 Landing Site Crater Diameter-Frequency Distribution’, NASA Tech. Mem. 79729, pp. 179–181.
Dzurisin, D. and Blasius, K. R.: 1975, J. Geophys. Res. 82, 4225.
Gatto, L. W. and Anderson, D. M.: 1975, Science 188, 255.
Greeley, R.: 1978, ‘Mars: A Model for the Formation of Dunes and Related Structures’, NASA Tech. Mem. 79729, pp. 244–245.
Greeley, R., Iverson, J. D., Pollack, J. B., Udovich, N., and White, B.: 1974, Science 183, 847.
Greeley, R., Theilis, E., Guest, J. E., Carr, M. H., Masursky, H., and Cutts, J. A.: 1977, J. Geophys. Res. 82, 4093.
Guest, J. E. and Butterworth, P. S.: 1977, J. Geophys. Res. 82, 4111.
Harp, E. L.: 1974, ‘Fracture Systems and Tectonics on Mars’, Unpublished Ph.D. Thesis, University of Utah, Salt Lake City, Utah.
Harris, S. A.: 1977, J. Geophys. Res. 82, 3099.
Hartmann, W. K.: 1971a, Icarus 15, 396.
Hartmann, W. K.: 1971b, Icarus 15, 410.
Hartmann, W. K.: 1973, Icarus 19, 550.
Hartmann, W. K.: 1974a, J. Geophys. Res. 79, 3951.
Hartmann, W. K.: 1974b, Icarus 22, 301.
Head, J. W., Settle, M., and Wood, C. A.: 1976, Nature 263, 667.
Hess, S. L., Henry, R. M., Leovy, C. B., Ryan, J. A., and Tillman, J. E.: 1977, J. Geophys. Res. 82, 4559.
Hodges, C. A. and Moore, H. J.: 1978, ‘The Subglacial Birth of Olympus Mons’, Abstracts with Programs, Geol. Soc. America 91st Annual meeting, Vol. 10, p. 422.
Hord, C. W., Barth, C. A., Steward, A. I., and Lane, A. L.: 1972, Icarus 17, 443.
Howard, A. D.: 1978, Icarus 34, 581.
Ingersoll, A. P.: 1974, J. Geophys. Res. 79, 3403.
Iverson, J. D., Greeley, R., White, B. R., and Pollack, J. B.: 1976, J. Geophys. Res. 81, 4846.
Jones, K. L.: 1974, J. Geophys. Res. 79, 3917.
Kieffer, H. H., Christensen, P. R., Martin, T. Z., Miner, E. D., and Palluconi, F. D.: 1976, Science 194, 1346.
Kieffer, H. H., Martin, T. Z., Peterfreund, A. A. R., and Jakosky, B. M.: 1977, J. Geophys. Res. 82, 4249.
King, J. S. and Riehle, J. R.: 1974, Icarus 23, 300.
Kliore, A., Cain, D. L., Levy, G. S., Eshleman, V. R., Fjelbo, G., and Drake, F. D.: 1965, Science 149, 1243.
Leighton, R. B. and Murray, B. C.: 1966, Science 153, 136.
Leighton, R. B., Murray, B. C., Sharp, R. P., Allen, J. D., and Sloan, R. K.: 1965, Science 149, 627.
Leighton, R. B., Horowitz, N. H., Murray, B. C., Sharp, R. P., Herriman, A. G., Young, A. T., Smith, B. A., Davies, M. E., and Leovy, C. G.: 1969a, Science 166, 49.
Leighton, R. B., Horowitz, N. H., Murray, B. C., Sharp, R. P., Herriman, A. G., Young, A. T., Smith, B. A., Davies, M. E., and Leovy, C. G.: 1969b, ‘Television Observations from Mariner 6 and 7. Mariner-Mars 1969, A Preliminary Report’, NASA Sp. Publ. SP-225.
Lucchitta, B. K.: 1978a, Geol. Soc. Am. Bull. 89, 1601.
Lucchitta, B. K.: 1978b, J. Res., U.S. Geological Survey 6, 651.
McCauley, J. F.: 1973, J. Geophys. Res. 78, 4123.
McCauley, J. F.: 1979, ‘Geologic Map of the Coprates Quadrangle of Mars’, U.S. Geological Survey, Misc. Inv. Map I-897.
McCauley, J. F., Carr, M. H., Cutts, J. A., Hartmann, W. K., Masursky, H., Milton, D. J., Sharp, R. P., and Wilhelms, D. E.: 1972, Icarus 17, 289.
Malin, M. C.: 1976, ‘Nature and Origin of Intercrater Plains on Mars’, Unpublished Ph.D. Thesis, Calif. Inst. Tech., Pasadena, Calif., 176 pp.
Malin, M. C.: 1977, Geol. Soc. Am. Bull. 84, 908.
Masson, P.: 1977, Icarus 30, 49.
Masursky, H.: 1973, J. Geophys. Res. 78, 4037.
Masursky, H. and Crabill, N. L.: 1976, Science 194, 62.
Masursky, H., Boyce, J. M., Dial, A. L., Schaber, G. G., and Strobell, M. E.: 1977, J. Geophys. Res. 82, 4016.
Milton, D. J.: 1973, J. Geophys. Res. 78, 4037.
Milton, D. J.: 1974, Science 183, 654.
Murray, B. C. and Malin, M. C.: 1973, Science 179, 997.
Murray, B. C., Soderblom, L. A., Sharp, R. P., and Cutts, J. A.: 1971, J. Geophys. Res. 76, 313.
Murray, B. C., Soderblom, L. A., Cutts, J. A., Sharp, R. P., Milton, D. J., and Leighton, R. B.: 1972, Icarus 17, 328.
Mutch, T. A. and Head, J. W.: 1975, Rev. Geophys. Space Phys. 3, 41.
Mutch, T. A. and Saunders, R. S.: 1976, Space Sci. Rev. 19, 3.
Mutch, T. A., Arvidson, R. E., Head, J. W., Jones, K. L., and Saunders, R. S.: 1976, The Geology of Mars, Princeton Univ. Press, Princeton, N. J.
Mutch, T. A., Arvidson, R. E., Binder, A. B., Guiness, E. A., and Morris, E. C.: 1977, J. Geophys. Res. 82, 4452.
Pieri, D.: 1976, Icarus 27, 25.
Neukum, G. and Wise, D. U.: 1976, Science 194, 1381.
Nummedal, D.: 1976, ‘Fluvial Erosion on Mars’, Proc. Colloquium on Water in Planetary Regoliths., Hanover, N. H., pp. 47–54.
Nummedal, D.: 1978, ‘The Role of Liquefaction in Channel Development on Mars’, NASA Tech. Mem. 79729, pp. 257–259.
Öpik, E. J.: 1966, Science 153, 255.
Oberbeck, V. R.: 1975, Rev. Geophys. Space Sci. 13, 337.
Oberbeck, V. R., Morrison, R. H., and Hortz, F.: 1975, The Moon 13, 9.
Reimers, C. E. and Komar, P. D.: 1977, Icarus 39, 88.
Sagan, C., Veverka, J., Fox, P., Dubisch, R., Lederberg, J., Levinthal, E., Quam, L., Tucker, R., Pollack, J. B., and Smith, B. A.: 1972, Icarus 17, 346.
Sagan, C., Veverka, J., Fox, P., Dubisch, R., French, R., Gierasch, P., Quam, L., Lederberg, J., Levinthal, E., Tucker, R., Eross, B., and Pollack, J. B.: 1973a, J. Geophys. Res. 78, 4163.
Sagan, C., Toon, O. B., and Gierasch, P. J.: 1973b, Science 181, 1045.
Schonfeld, E.: 1977, Eight Lunar Sci. Conf. Abstracts, Pt. II, pp. 843–845.
Schumm, S. A.: 1974, Icarus 22, 371.
Scott, D. H. and Carr, M. H.: 1978, ‘Geologic map of Mars’, U.S. Geol. Survey, Misc. Inv. Map I-1083.
Sengor, A. M. C. and Jones, E. C.: 1975, ‘A New Interpretation of Martian Tectonics with Special Reference to the Tharsis Region’, (abstract), Geol. Soc. America, Abstract with Program, Vol. 7, p. 1264.
Sharp, R. P.: 1973a, J. Geophys. Res. 78, 4073.
Sharp, R. P.: 1973b, J. Geophys. Res. 78, 4063.
Sharp, R. P.: 1973c, J. Geophys. Res. 78, 4222.
Sharp, R. P.: 1974, J. Glaciology 13, 173.
Sharp, R. P. and Malin, M. C.: 1975, Geol. Soc. Am. Bull. 86, 593.
Sharp, R. P., Soderblom, L. A., Murray, B. C., and Cutts, J. A.: 1971, J. Geophys. Res. 76, 331.
Sinton, W. M. and Strong, J.: 1960, Astrophys. J. 131, 459.
Soderblom, L.: 1976, Science 194, 97.
Soderblom, L. S., Kriedler, T. J., and Masursky, H.: 1973, J. Geophys. Res. 78, 4117.
Soderblom, L. A., Condit, C. D., West, R. A., Herman, B. M., and Kriedler, T. J.: 1974, Icarus 22, 239.
Sqyres, S. W.: 1978, Icarus 34, 600.
U.S. Geological Survey: 1976, ‘Topographic Map of Mars’ U.S. Geol. Survey, Misc. Inv. Map I-961.
Walker, G. P. L.: 1973, Phil. Trans. Roy. Soc. London A274, 107.
Ward, W. R.: 1973, Science 181, 260.
Ward, W. R.: 1974, J. Geophys. Res. 79, 3933.
West, M.: 1974, Icarus 21, 1.
Wilhelms, D. E.: 1973, J. Geophys. Res. 78, 4084.
Wise, D. U.: 1974, Trans. Am. Geophys. Union (EOS) 55, 341.
Wise, D. U.: 1975, ‘Faulting and Stress Trajectories near Alba Volcano Northern Tharsis Ridge of Mars’, (Abstract), Proc. Int. Colloquium of Planetary Geology, Rome, pp. 430–433.
Wise, D. U.: 1977, ‘Timing of Deformational Events in the Northern Tharsis Bulge of Mars’, NASA Tech. Mem. X-2511, pp. 59–60.
Wise, D. U., Golombek, M. P., and McGill, G. E.: 1979, ‘Tharsis Province of Mars: Geologic Sequence, Geometry and a Deformation Mechanism’, Icarus 38, 456.
Wu, S. S. C.: 1978, Icarus 33, 417.
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Carr, M.H. The morphology of the Martian surface. Space Sci Rev 25, 231–284 (1980). https://doi.org/10.1007/BF00221929
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DOI: https://doi.org/10.1007/BF00221929