Abstract
The relative rates and importance of impact cratering, volcanism, erosion, and the deposition of sediments to the early geological history of Mars are poorly known. That history is recorded in the upper crust of the planet, which is best exposed along the 4,000-km-long canyon system called Valles Marineris. Previous studies of the stratigraphy of this region have assumed that it consists of megabreccia and fractured bedrock resulting from impacts, overlain by or interbedded with relatively thin layers of lava, and with the layering restricted to the uppermost level of the crust1,2,3,4,5,6. Here we report new high-resolution images that reveal ubiquitous horizontal layering to depths of at least 8 km in the canyons. Megabreccia should be only coarsely layered and fractured bedrock should be unlayered, so these observations indicate that volcanic or sedimentary processes were much more important in early martian history than previously believed. Morphological and compositional data suggest that the layers were formed mainly by volcanic flood lavas. Mars was therefore probably very volcanically active during at least the first billion years and after the period when the heaviest impact bombardment had ended.
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References
Lucchitta, B. K. et al. in Mars (eds Kieffer, H. H., Jakosky, B. M., Snyder, C. M. & Matthews, M. S.) 453–492 (Univ. Arizona Press, Tucson, (1992)).
Tanaka, K. L., Scott, D. H. & Greeley, R. in Mars (eds Kieffer, H. H., Jakosky, B. M., Snyder, C. M. & Matthews, M. S.) 345–382 (Univ. Arizona Press, Tucson, (1992)).
Clifford, S. M. Amodel for the hydrologic and climatic behavior of water on Mars. J. Geophys. Res. 98, 10973–11016 (1993).
Tanaka, K. L. & Golombek, M. P. Martian tension fractures and the formation of graben and collapse features at Valles Marineris. Proc. Lunar Planet. Sci. Conf. 19, 383–396 (1989).
Davis, P. A. & Golombek, M. P. Discontinuities in the shallow Martian crust at Lunae, Syria, and Sinai Plana. J. Geophys. Res. 95, 14231–14248 (1990).
Zuber, M. T. & Aist, L. L. The shallow structure of the Martian lithosphere in the vicinity of the ridged plains. J. Geophys. Res. 95, 14215–14230 (1990).
Malin, M. C. et al. Mars Observer Camera. J. Geophys. Res. 97, 7699–7718 (1992).
Malin, M. C. et al. Early views of the Martian surface from the Mars Orbital Camera of Mars Global Surveyor. Science 279, 1681–1685 (1998).
Albee, A. L., Palluconi, F. D. & Arvidson, R. E. Mars Global Surveyor mission: Overview and status. Science 279, 1671–1672 (1998).
Lucchitta, B. K. Morphology of chasma walls, Mars. J. Res. US Geol. Surv. 6, 651–662 (1978).
Geissler, P. E., Singer, R. B. & Lucchitta, B. K. Dark materials in Valles Marineris: Indications of the style of volcanism and magmatism on Mars. J. Geophys. Res. 95, 14399–14413 (1990).
Scott, D. H. & Tanaka, K. L. Geologic Map of the Western Equatorial Region of Mars, Scale 1:15,000,000 (Misc. Inv. Ser. Map I-1802-A, US Geol. Surv., Denver, (1986)).
Witbeck, N. E., Tanaka, K. E. & Scott, D. H. Geologic Map of the Valles Marineris Region of Mars, Scale 1:2,000,000 (Inv. Ser. Map I-2010, US Geol. Surv., Denver, (1991)).
Erard, S. et al. Spatial variations in composition of the Valles Marineris and Isidis Planitia regions of Mars derived from ISM data. Proc. Lunar Planet. Sci. Conf. 21, 437–456 (1991).
Self, S., Thordarson, T. & Keszthelyi, L. in Large Igneous Provinces (eds Mahoney, J. J. & Coffin, M. F.) 381–410 (Am. Geophys. Union, Washington, D. C., (1997)).
Christensen, P. R. et al. Results from the Mars Global Surveyor thermal Emission Spectrometer. Science 279, 1692–1698 (1998).
Schubert, G., Solomon, S. C., Turcotte, D. L., Drake, M. J. & Sleep, N. H. in Mars (eds Kieffer, H. H., Jakosky, B. M., Snyder, C. M. & Matthews, M. S.) 147–183 (Univ. Arizona Press, Tucson, (1992)).
Carr, M. H. Water on Mars (Oxford Univ. Press, New York, (1996)).
Craddock, R. A., Maxwell, T. A. & Howard, A. D. Crater morphometry and modification in the Sinus Sabaeus and Margaritifer Sinus regions of Mars. J. Geophys. Res. 102, 13321–13340 (1997).
Greeley, r. & Schneid, B. D. Magma generation on Mars: Amounts, rates, and comparisons with Earth, Moon, and Venus. Science 254, 996–998 (1991).
Pollack, J. B., Kasting, J. F., Richardson, S. M. & Poliakoff, K. The case for a wet, warm climate on early Mars. Icarus 71, 203–224 (1987).
Carr, M. H. Recharge of the early atmosphere of Mars by impact-induced release of CO2. Icarus 79, 311–327 (1989).
Maher, K. A. & Stevenson, D. J. Impact frustration of the origin of life. Nature 331, 612–614 (1988).
Topographic Maps of the Polar, Western, and Eastern regions of Mars (Misc. Inv. Ser. Map I-2160, US Geol. Surv., Denver, (1991)).
Fanale, F. P. Martian volatiles: Their degassing history and geochemical fate. Icarus 28, 179–202 (1976).
Soderblom, L. A. & Wenner, D. B. Possible fossil water liquid–ice interfaces in the Martian crust. Icarus 34, 622–637 (1978).
Treiman, A. H., Fuks, K. H. & Murchie, S. Diagenetic layers in the upper walls of Valles Marineris, Mars: Evidence for drastic climate change since the mid-Hesperian. J. Geophys. Res. 100, 26339–26344 (1995).
Acknowledgements
We thank L. Keszthelyi for discussions, and M. T. Zuber and N. G. Barlow for comments on the manuscript. This work was supported by the MGS project.
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McEwen, A., Malin, M., Carr, M. et al. Voluminous volcanism on early Mars revealed in Valles Marineris. Nature 397, 584–586 (1999). https://doi.org/10.1038/17539
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DOI: https://doi.org/10.1038/17539
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