Danielson (crater)

Danielson Crater is an impact crater in the Oxia Palus quadrangle on Mars at 7.93° N and 7.11° W. and is 66.7 km in diameter, and is north of the Meridiani Planum, south of Arabia Terra and west of the planet's meridia. Its name was approved in 2009, and it was named after American engineer G. Edward Danielson.[1][2]

ESA's Mars Express photo of the southern part of Danielson and the northernmost rim of Kalocsa

Danielson Crater

.MOLA map showing Danielson Crater and other nearby craters. Colors indicate elevations. Danielson is on the top and mid-right
Planet	Mars
Region	Oxia Palus quadrangle
Coordinates	7.93°N 7.11°W / 7.93; -7.11
Diameter	66.7 km
Eponym	G. Edward Danielson

Many close up images of the crater reveal multiple thin layers, some of which are broken by faults. The layers on the floor of Danielson may have been formed on the bottom of lakes.[3][4][5]

Gallery

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  West side of Danielson Crater, as seen by CTX camera (on Mars Reconnaissance Orbiter). Danielson has a great deal of regular layering.
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  Some of the layers of Danielson Crater is just visible in this CTX image. Dunes are also visible.
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  East side of Danielson Crater, as seen by CTX camera (on Mars Reconnaissance Orbiter). Many layers are present here, but barely visible.
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  Layers in Danielson Crater, as seen by CTX camera (on Mars Reconnaissance Orbiter). Note: this is an enlargement of the previous image of the East side of this crater.
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  Layers in Danielson Crater, as seen by HiRISE. Dust devil tracks are also visible at the top.
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  Many layers are visible in this HiRISE image. Dark dust serves to highlight some of the layers.
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  Wide-view of layers in Danielson Crater, as seen by HiRISE under HiWish program. Box shows location of next image. Dark parts of image are dark, basalt sand sitting on level places.
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  Enlargement of previous image of Danielson Crater showing a fault and layers. Image taken with HiRISE, under HiWish program.
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  Wide view of part of Danielson Crater, as seen by HiRISE under HiWish program
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  Enlargement of previous image of Danielson Crater, as seen by HiRISE under HiWish program The box represents the size of a football field.
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  Close-up of layers in Danielson Crater, as seen by HiRISE under HiWish program—boulders are visible, as well as dark sand
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  Layers in Danielson Crater with dust devil tracks at the top of the picture, as seen by HiRISE under HiWish program
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  Color close up of layers in Danielson Crater, as seen by HiRISE under HiWish program
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  Layers and buttes in Danielson Crater, as seen by HiRISE under HiWish program
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  Color close up of layers in Danielson Crater, as seen by HiRISE under HiWish program

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  Wide view of layers in Danielson Crater, as seen by HiRISE under HiWish program
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  Layers in Danielson Crater, as seen by HiRISE under HiWish program Scale is shown.
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  Layers and dark dust in Danielson Crater, as seen by HiRISE under HiWish program
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  Layers, crater, and mounds on floor of Danielson Crater, as seen by HiRISE under HiWish program
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  Close view of crater on floor of Danielson Crater, as seen by HiRISE under HiWish program
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  Layered mound on floor of Danielson Crater, as seen by HiRISE under HiWish program
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  Close, color view of layers and dark dust on floor of Danielson Crater, as seen by HiRISE under HiWish program
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  Close, color view of layers and dark dust on floor of Danielson Crater, as seen by HiRISE under HiWish program Boulders are visible in the image.
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  Close, color view of layers and dark dust on floor of Danielson Crater, as seen by HiRISE under HiWish program Faults are indicated with arrows.
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  Close view of layers on floor of Danielson Crater, as seen by HiRISE under HiWish program Some faults are visible in image.
• 
  Close, color view of layers and dark dust on floor of Danielson Crater, as seen by HiRISE under HiWish program Some small faults are visible in image.

See also

• List of craters on Mars

References

1. Edgett, Ken (May 27, 2009). "The Martian Craters Asimov and Danielson". The Planetary Society. Retrieved 2017-11-06.
2. "Gazetteer of Planetary Nomenclature | Danielson". usgs.gov. International Astronomical Union. Retrieved 5 March 2015.
3. Cabrol, N. and E. Grin. 2001. The Evolution of Lacustrine Environments on Mars: Is Mars Only Hydrologically Dormant? Icarus: 149, 291-328.
4. Fassett, C. and J. Head. 2008. Open-basin lakes on Mars: Distribution and implications for Noachian surface and subsurface hydrology. Icarus: 198, 37-56.
5. Fassett, C. and J. Head. 2008. Open-basin lakes on Mars: Implications of valley network lakes for the nature of Noachian hydrology.

External links

Media related to Danielson (crater) at Wikimedia Commons