Valley Network (Venus)

Living reference work entry
DOI: https://doi.org/10.1007/978-1-4614-9213-9_393-1

Definition

Integrated system of elongate depressions cut into topography on Venus.

Category

A type of valley on Venus

Synonyms

Description

Networks of valleys, commonly with integrated systems of tributaries (Baker et al. 1992). Unlike channels, valley networks’ boundaries may not be shaped by fluids (Baker et al. 1992, 1997) and valleys show no bedforms indicative of surface flows (Komatsu et al. 2001; as also defined for Mars, Mars Channel Working Group 1983).

Subtypes

Three morphologic subclasses have been defined (Gulick et al. 1992) but some networks show transitional morphology.
  1. (1)

    Labyrinthic valley network (Fig. 1). This is the most common type observed on Venus. Valleys are several km wide and 100 s km long. They are found within or near tectonically deformed terrains or near volcanic landforms (coronae) (Komatsu et al. 1992, 1993, 2001). Their morphology suggests structural control. Widths and depths of valleys appear significantly...

Keywords

Depression 
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References

  1. Baker VR, Komatsu G, Parker TJ, Gulick VC, Kargel JS, Lewis JS (1992) Channels and valleys on Venus: preliminary analysis of Magellan data. J Geophys Res 97(E8):13421–13444. doi:10.1029/92JE00927CrossRefGoogle Scholar
  2. Baker VR, Komatsu G, Parker TJ, Gulick VC (1997) Channels and valleys on Venus. In: Venus II. University of Arizona Book Press, Tucson, pp 757–793Google Scholar
  3. Gulick VC, Komatsu G, Baker VR (1992) Integrated valley systems on Venus: a comparative morphological study. LPSC XXIII, pp 467–468Google Scholar
  4. Komatsu G, Gluick VC, Kargel JS, Baker VR (1992) Venus lava sapping valleys. LPSC XXIII, pp 719–720Google Scholar
  5. Komatsu G, Baker VR, Gulick VC, Parker TJ (1993) Venusian channels and valleys: distribution and volcanological implications. Icarus 102:1–25CrossRefGoogle Scholar
  6. Komatsu G, Gulick VC, Baker VR (2001) Valley networks on Venus. Geomorphology 37:225–240CrossRefGoogle Scholar
  7. Mars Channel Working Group (1983) Channels and valleys on Mars. GSA Bullet 94(9):1035–1054. doi:10.1130/0016-7606(1983)CrossRefGoogle Scholar
  8. Oshigami S, Namiki N, Komatsu G (2009) Depth and longitudinal profiles of Venusian sinuous rilles and valley networks. Icarus 199:250–263. doi:10.1016/j.icarus.2008.10.012CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.International Research School of Planetary SciencesUniversità d’AnnunzioPescaraItaly