Rough Ejecta Terrain Near Mozart Impact Basin

Wolfgang's namesake basin has had a large effect on Mercury. Ejecta from the 241-kilometer-diameter (150 mile) impact basin has left an enormous network of rough terrain, in beautiful contrast to the basin's smooth interior. Mozart basin lies just a hop, skip and a jump away from the planet's largest impact basin, Caloris.

This image was acquired as a high-resolution targeted observation. Targeted observations are images of a small area on Mercury's surface at resolutions much higher than the 200-meter/pixel morphology base map. It is not possible to cover all of Mercury's surface at this high resolution, but typically several areas of high scientific interest are imaged in this mode each week.

Date acquired: October 02, 2013
Image Mission Elapsed Time (MET): 22999301
Image ID: 4929063
Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS)
Center Latitude: 12.52°
Center Longitude: 168.0° E
Resolution: 47 meters/pixel
Scale: The entire image is approximately 95 km (59 mi.) across.
Incidence Angle: 78.9°
Emission Angle: 59.6°
Phase Angle: 138.5°
North is down in this image.

Photo credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

Tectonic Complexity in Mercury's Impact Features

Mercury's surface is covered with impact craters, many of which have been flooded by lavas. A subset of flooded impact features host tectonic structures -- graben (shown in red in the figure above) and ridges and scarps (blue) -- that formed during or after volcanic infilling. Such impact features range from so-called "ghost craters" through medium-sized basins such as Mozart, to the largest basins on Mercury, including Rembrandt and the mighty Caloris. Mapping these structures, and so characterizing their nature and spatial and temporal distributions, helps scientists understand the processes responsible for the tectonic complexity within volcanically infilled craters and basins on Mercury.

Date released: February 1, 2013
Center Latitude: (a) 60.3°, (b) 7.8°, (c) -33.5°, (d) 30°
Center Longitude: (a) 36.7° E, (b) 169.6° E, (c) 88°E, (d) 161°E
Projection: Orthographic

Image credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington