Phoenicis Lacus quadrangle
The Phoenicis Lacus quadrangle is one of a series of 30 quadrangle maps of Mars used by the United States Geological Survey (USGS) Astrogeology Research Program. The Phoenicis Lacus quadrangle is also referred to as MC-17. Parts of Daedalia Planum, Sinai Planum, and Solis Planum are found in this quadrangle. Phoenicis Lacus is named after the phoenix which according to myth burns itself up every 500 years and then is reborn.
Image of the Phoenicis Lacus Quadrangle (MC-17). Most of the region includes the Tharsis plateau. The northwest contains Pavonis Mons and Arsia Mons, the east contains Syria Planum, the northeast includes Noctis Labyrinthus and the south-central part includes Claritas Fossae.
Part of Noctus Labyrinthus, as seen by Themis in the day Arrow points to area that will be enlarged. Red box shows the region covered by a CTX image which follows.
Part of Noctis Labrynthus as seen by CTX Box shows the area covered by the following HiRISE image
North and south walls of part of Noctis Labyrinthus, as seen by HiRISE under HiWish program
Noctis Labyrinthus is a region of Mars located in the Phoenicis Lacus quadrangle, between Valles Marineris and the Tharsis upland. The region is notable for its maze-like system of deep, steep-walled valleys. The valleys and canyons of this region formed by faulting and many show classic features of grabens, with the upland plain surface preserved on the valley floor. In some places the valley floors are rougher, disturbed by landslides, and there are places where the land appears to have sunk down into pit-like formations. It is thought that this faulting was triggered by volcanic activity in the Tharsis region. Research described in December 2009 found a variety of minerals, including clays, sulfates, and hydrated silicas, in some of the layers.
High resolution THEMIS daytime infrared image mosaic of Noctis Labyrinthus and its surroundings. The area is crisscrossed by multiple sets of graben running in different directions. The shield volcano Pavonis Mons is at upper left.
In this Viking 1 image, the canyons of Noctis Labyrinthus are filled with water ice fog from frost sublimated by the early morning sun.
Part of Noctis Labyrinthus as seen by CTX Box shows the area covered by the following HiRISE image
North and south walls of part of Noctis Labyrinthus, as seen by HiRISE under HiWish program