The Uranius group of volcanoes is located on planet Mars in the northeast part of Tharsis and includes

Uranius Mons Uranius Mons, formerly Uranius Patera, is a volcano on Mars located in the Tharsis quadrangle, named after a classical albedo feature. The name "Uranius Patera" now refers only to the volcano's central caldera. It is high and has shallow slopes ...

Ceraunius Tholus Ceraunius Tholus is a volcano on Mars located in the Tharsis quadrangle at 24.25° north latitude and 262.75° east longitude, part of the Uranius group of volcanoes. It is across, approximately high and is named after a classical albedo featur ...

, and

Uranius Tholus Uranius Tholus is a volcano on Mars located in the Tharsis quadrangle at 26.52° north latitude and 262.43° east longitude. It is across with an elevation of and was named after a classical albedo feature name. Uranius Tholus is part of the U ...

. Along with the Tharsis Montes to the southwest, they form part of a linear chain of volcanoes in the Tharsis region. They are dated to the Late

Hesperian The Hesperian is a geologic system and time period on the planet Mars characterized by widespread volcanic activity and catastrophic flooding that carved immense outflow channels across the surface. The Hesperian is an intermediate and transitio ...

Epoch and are part of earliest phases of volcanism in the Tharsis province. All three volcanoes are interpreted as basaltic shields. The volcanoes of the Uranius group were active for short periods of time (10 000–100 000 years) and are significantly older than the major Tharsis volcanoes.Lunar and Planetary Science XXX, GEOLOGY OF URANIUS PATERA, MARS. J. B. Plescia, U. S. Geological Survey, 2255 N. Gemini Drive, Flagstaff, AZ 86001.

References

{{Portal bar, Solar System Volcanoes of Mars Tharsis quadrangle