Astronomy:Lakshmi Planum

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Short description: Planum on Venus
Lakshmi Planum
File:200px
Lakshmi Planum in dark red, in a topographically coloured radar image of Ishtar Terra
Feature typePlanum
Coordinates [ ⚑ ] : 68°36′N 339°18′E / 68.6°N 339.3°E / 68.6; 339.3
Diameter2,345.0 km
EponymLakshmi

Lakshmi Planum is a plateau feature approximately 2 million km2 ringed by rugged mountains,[1][2] the surface of Venus on the Western Ishtar Terra.[3] It is named after Lakshmi, the Hindu goddess of wealth.

It is roughly 3.5 to 5 kilometers (2.2 to 3.1 mi) above the mean planetary radius, featuring two large oval depressions (Colette and Sacajawea).[2]

The plains of Lakshmi are made up of radar-dark, homogeneous, smooth lava flows.[4]

Lakshmi Planum is ringed by intensely deformed terrain,[5] some of which is shown in the southern portion of the image and is called Clotho Tessera.[6]

  • Lineated plains in Lakshmi Region.Two sets of parallel lineations are seen intersecting almost at right angles
    Lineated plains in Lakshmi Region.Two sets of parallel lineations are seen intersecting almost at right angles
  • The radar smooth region in the northern part of the image is Lakshmi Planum, ringed by the intensely deformed terrain of Clotho Tessera.
    The radar smooth region in the northern part of the image is Lakshmi Planum, ringed by the intensely deformed terrain of Clotho Tessera.
  • Sacajawea Patera, a large, elongate caldera on the smooth plateau of Lakshmi Planum, approximately 1.2 km deep and 120 by 215 km in diameter.
    Sacajawea Patera, a large, elongate caldera on the smooth plateau of Lakshmi Planum, approximately 1.2 km deep and 120 by 215 km in diameter.

References

  1. ↑ Roberts, Kari M.; Head, James W. (1990). "Lakshmi Planum, Venus: Characteristics and models of origin". Earth, Moon, and Planets 50–51 (1): 193–249. doi:10.1007/BF00142395. Bibcode: 1990EM&P...50..193R. 
  2. ↑ 2.0 2.1 Roberts, Kari M.; Head, James W. (1989). "Lakshmi Planum: A Distinctive Highland Volcanic Province" (in en). Venus Geoscience Tutorial and Venus Geologic Mapping Workshop 708: 37. ISSN 0161-5297. Bibcode: 1989LPICo.708...37R. https://ui.adsabs.harvard.edu/abs/1989LPICo.708...37R/abstract. 
  3. ↑ "Planetary Names". https://planetarynames.wr.usgs.gov/Feature/3244. 
  4. ↑ Catalog Page for PIA00241
  5. ↑ Ivanov, M. A.; Head, J. W. (2008-12-01). "Formation and evolution of Lakshmi Planum, Venus: Assessment of models using observations from geological mapping". Planetary and Space Science 56 (15): 1949–1966. doi:10.1016/j.pss.2008.09.003. ISSN 0032-0633. Bibcode: 2008P&SS...56.1949I. https://www.sciencedirect.com/science/article/pii/S0032063308002766. 
  6. ↑ Catalog Page for PIA00240



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