page_title: Noctis Labyrinthus
hierarchical_section_title: Noctis Labyrinthus
caption_attribution_description: English: THEMIS daytime infrared image mosaic showing Noctis Labyrinthus, a region of Mars containing a maze-like system of deep, steep-walled valleys, and its surroundings. The Tharsis volcanic province is to the the west (the shield volcano Pavonis Mons is at upper left) and the canyon system Valles Marineris lies to the east. Some of the features in this mosaic are annotated in Wikimedia Commons.
context_page_description: Noctis Labyrinthus is a region of Mars between Valles Marineris and the Tharsis upland. It is located in the Phoenicis Lacus quadrangle. 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.
context_section_description: Noctis Labyrinthus (Latin: labyrinth of the night) is a region of Mars between Valles Marineris and the Tharsis upland. It is located in the Phoenicis Lacus quadrangle.  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.
caption: 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.
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