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. Its name was approved in 2009, and it was named after G. Edward Danielson.[1] 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.[2][3][4]
MOLA map showing Danielson Crater and other nearby craters. Colors indicate elevations.
West side of Danielson Crater, as seen by CTX camera (on Mars Reconnaissance Orbiter). Danielson has a great deal of regular layering.
Some of the layers of Danielson Crater is just visible in this CTX image. Dunes are also visible.
East side of Danielson Crater, as seen by CTX camera (on Mars Reconnaissance Orbiter). Many layers are present here, but barely visible.
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.
Layers in Danielson Crater, as seen by HiRISE. Dust devil tracks are also visible at the top.
Many layers are visible in this HiRISE image. Dark dust serves to highlight some of the layers.
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.
Enlargement of previous image of Danielson Crater showing a fault and layers. Image taken with HiRISE, under HiWish program.
Wide view of part of Danielson Crater, as seen by HiRISE under HiWish program
Enlargement of previous image of Danielson Crater, as seen by HiRISE under HiWish program The box represents the size of a football field.
Close-up of layers in Danielson Crater, as seen by HiRISE under HiWish program--boulders are visible, as well as dark sand
Layers in Danielson Crater with dust devil tracks at the top of the picture, as seen by HiRISE under HiWish program
Color close up of layers in Danielson Crater, as seen by HiRISE under HiWish program
Layers and buttes in Danielson Crater, as seen by HiRISE under HiWish program
Color close up of layers in Danielson Crater, as seen by HiRISE under HiWish program
See also
Media related to Danielson (crater) at Wikimedia Commons
- Planetary nomenclature
- Impact crater
- List of craters on Mars
- Water on Mars
- Climate of Mars
- Groundwater on Mars
References
- ↑ "Gazetteer of Planetary Nomenclature | Danielson". usgs.gov. International Astronomical Union. Retrieved 5 March 2015.
- ↑ Cabrol, N. and E. Grin. 2001. The Evolution of Lacustrine Environments on Mars: Is Mars Only Hydrologically Dormant? Icarus: 149, 291-328.
- ↑ Fassett, C. and J. Head. 2008. Open-basin lakes on Mars: Distribution and implications for Noachian surface and subsurface hydrology. Icarus: 198, 37-56.
- ↑ Fassett, C. and J. Head. 2008. Open-basin lakes on Mars: Implications of valley network lakes for the nature of Noachian hydrology.
This article is issued from Wikipedia - version of the 9/24/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.