# Biblis Tholus > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Biblis_Tholus > Markdown URL: https://mediated.wiki/source/Biblis_Tholus.md > Source: https://en.wikipedia.org/wiki/Biblis_Tholus > Source revision: 1026401905 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) Martian volcano Biblis Tholus THEMIS daytime IR mosaic of Biblis Tholus. Coordinates 2°33′N 235°37′E / 2.55°N 235.62°E / 2.55; 235.62[1] Peak 3 km **Biblis Tholus** is an [extinct](/source/Extinct_volcano) [Martian](/source/Mars) [volcano](/source/Volcano) located at [2°33′N 235°37′E / 2.55°N 235.62°E / 2.55; 235.62](https://geohack.toolforge.org/geohack.php?pagename=Biblis_Tholus¶ms=2.55_N_235.62_E_globe:mars_type:mountain_source:gpn),[1] one of two volcanoes near the center of the [Tharsis](/source/Tharsis) volcanism. Along with [Ulysses Tholus](/source/Ulysses_Tholus), it is almost midway between [Olympus Mons](/source/Olympus_Mons) and the [Tharsis Montes](/source/Tharsis_Montes). Biblis Tholus lies in the [Tharsis quadrangle](/source/Tharsis_quadrangle). It is approximately 170 kilometers (110 mi) long and 100 kilometers (62 mi) wide, rising about 3 kilometers (1.9 mi) from its surroundings. In the middle of the volcano is a [caldera](/source/Caldera), named **Biblis Patera**, believed to have formed as the result of collapse of the [magma](/source/Magma) chamber during eruptions of the volcano.[2] The caldera is 53 kilometers (33 mi) in diameter and four kilometers (2.5 miles) in depth. - Topography and location in Tharsis using [MOLA](/source/Mars_Orbiter_Laser_Altimeter) data set. - Close-up of Biblis Patera taken with [Mars Odyssey](/source/Mars_Odyssey). Rim of crater shows multiple episodes of collapse. - Nearby Ulysses Tholus, showing its location in relation to other volcanoes (photo by [THEMIS](/source/THEMIS)). - Biblis Patera pedestal crater, as seen by [HiRISE](/source/HiRISE). - Pedestal craters form when the ejecta from impacts protect the underlying material from erosion. As a result of this process, craters appear perched above their surroundings. ## See also - [Geography of Mars](/source/Geography_of_Mars) - [HiRISE](/source/HiRISE) - [Geology of Mars](/source/Geology_of_Mars) - [List of mountains on Mars by height](/source/List_of_mountains_on_Mars_by_height) - [Pedestal crater](/source/Pedestal_crater) - [Volcanoes on Mars](/source/Volcanoes_on_Mars) - [Volcanology of Mars](/source/Volcanology_of_Mars) ## References Wikimedia Commons has media related to [Biblis Tholus](https://commons.wikimedia.org/wiki/Category:Biblis_Tholus). 1. ^ [***a***](#cite_ref-gpn_1-0) [***b***](#cite_ref-gpn_1-1) ["Biblis Tholus"](https://planetarynames.wr.usgs.gov/Feature/14308). *Gazetteer of Planetary Nomenclature*. USGS Astrogeology Research Program. 1. **[^](#cite_ref-Carr2006_2-0)** Michael H. Carr (2006). [*The surface of Mars*](https://books.google.com/books?id=uLHlJ6sjohwC). [Cambridge University Press](/source/Cambridge_University_Press). [ISBN](/source/ISBN_(identifier)) [978-0-521-87201-0](https://en.wikipedia.org/wiki/Special:BookSources/978-0-521-87201-0). Retrieved 21 March 2011. ## External links - [Mars Express Page on Biblis Patera](http://www.esa.int/SPECIALS/Mars_Express/SEMKW9A5QCE_0.html) - [Google Mars infrared view of Biblis Patera](http://www.google.com/mars/#lon=-113.378906&map=infrared&q=Biblis%20Patera) v t e Mars Outline of Mars Geography Atmosphere Circulation Climate Dust devil tracks Methane Regions Arabia Terra Cerberus (Mars) Cydonia Eridania Lake Iani Chaos Olympia Undae Planum Australe Planum Boreum Quadrangles Sinus Meridiani Tempe Terra Terra Cimmeria Terra Sabaea Tharsis Undae Ultimi Scopuli Vastitas Borealis Physical features "Canals" (list) Canyons Catenae Chaos terrain Craters Fossae Gullies Mensae Labyrinthi Mountains by height Observed rocks Outflow channels Plains Valley network Valleys Gravity Geology Brain terrain Carbonates Chaos terrain Color Composition Concentric crater fill Dark slope streak Dichotomy Fretted terrain Geysers Glaciers Groundwater Gullies Lakes Lava tubes Lobate debris apron Marsquake Meteorites on Earth on Mars Mud cracks North Polar Basin Ocean hypothesis Ore resources Polar caps polar wander Recurring slope lineae (RSL) Ring mold craters Rootless cones Seasonal flows Soil Spherules Surface "Swiss cheese" feature Terrain softening Tharsis bulge Volcanism Water Yardangs History Pre-Noachian Noachian Hesperian Amazonian Observation history Classical albedo features Astronomy Moons Phobos Stickney crater Limtoc crater Monolith Deimos Swift crater Voltaire crater Transits Solar eclipses on Mars Satellite transits Phobos Deimos Planetary transits Earth Mercury Asteroids Impacts Mars-crossers 2007 WD5 Trojans 5261 Eureka 1998 VF31 1999 UJ7 2007 NS2 Comets C/2013 A1 (Siding Spring) General Orbit Exploration Concepts Flyby Orbiter Landing Rover Sample return Human mission Permanent settlement Colonization Terraforming Missions List of missions to Mars Advocacy The Mars Project The Case for Mars Inspiration Mars Foundation Mars Institute Mars Society Mars race Related Artificial objects on Mars Memorials on Mars Fiction List of films set on Mars Martian scientist Mythology Flag of Mars Life on Mars Sub-Earth Timekeeping on Mars Sol (day on Mars) Darian calendar Category Solar System portal [Portal](https://en.wikipedia.org/wiki/Wikipedia:Contents/Portals): - [Solar System](https://en.wikipedia.org/wiki/Portal:Solar_System) This article about geology, geography or other features of the planet Mars or its moons is a stub. You can help Wikipedia by adding missing information. - [v](https://en.wikipedia.org/wiki/Template:Mars-stub) - [t](/source/Template_talk%3AMars-stub) - [e](https://en.wikipedia.org/wiki/Special:EditPage/Template:Mars-stub) --- Adapted from the Wikipedia article [Biblis Tholus](https://en.wikipedia.org/wiki/Biblis_Tholus) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Biblis_Tholus?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.