Tharsis Tholus [SEP] located on astronomical body
Tharsis Tholus
Tharsis Tholus is an intermediate-sized shield volcano located in the eastern Tharsis region of the planet Mars. The volcano was discovered by the Mariner 9 spacecraft in 1972 and originally given the informal name Volcano 7. In 1973, the International Astronomical Union (IAU) officially designated it Tharsis Tholus. In planetary geology, tholus (pl. "tholi") is the term for a small domical mountain, usually a volcano.
General Description.
Tharsis Tholus lies on the eastern edge of the Tharsis
Biblis Tholus
Biblis Tholus is an extinct Martian volcano located at , one of two volcanoes near the center of the Tharsis volcanism. Along with Ulysses Tholus, it is almost midway between Olympus Mons and the Tharsis Montes. Biblis Tholus lies in the Tharsis quadrangle. It is approximately long and wide, rising about from its surroundings.
In the middle of the volcano is a caldera, named Biblis Patera, believed to have formed as the result of collapse of the magma chamber during eruptions of the volcano. The caldera is