So yeah, we shyly started it a while ago Get to know Mars The section where such things are presented here.
And this thing right here is a dome-shaped outcrop in the Orcus Patera region of the planet, a tiny elliptical depression 380 km (240 miles) long and 140 km (87 miles) wide. The edge of the Depression rises 1.8 km (1.11 mi) above the surrounding plains, and the Depression itself is up to 600 meters (1,968 ft) below its surroundings.
The origin of the outcrop is not fully known and could have been formed by volcanic or tectonic processes. As for the crater, scientists do not rule out that it is a circular impact box deformed by compressive forces.
But most people bet their money that the Orcus Patera was the result of a sideways impact. “Probably less than five degrees from the horizontal”, according to the European Space Agency.
The main image of this article shows one of the most recent images of the region, taken from an altitude of 278 km (173 mi) by the HiRISE camera mounted on the Mars Reconnaissance Orbiter (MRO) in September 2015 and more recently. just published from NASA and the University of Arizona.