Uzboi-Ladon-Morava system
The Uzboi-Ladon-Morava system , also known as the ULM system for short , is a surface structure about 8,000 kilometers long on Mars .
location
The ULM system begins on the northeastern edge of the Argyre Planitia . From there it leads over the Bond crater, which has shaped the drainage valley, to the Uzboi Vallis . In this valley it winds up to the Holden crater, which was also formed later and thus shaped the system. At its eastern end it leads over the Holden Basin to Ladon Vallis, from there in a north-easterly direction into the extensive Ladon Basin. At its north-eastern edge is the Morava Vallis, which creates the connection to the Margaritifer Chaos. In the further course it can be guessed that the system is also connected to Ares Vallis via Iani Chaos, which leads to the Chryse Planitia .
Emergence
It is believed that the Argyre Planitia in the Martian highlands was once filled with water, and that this water flowed into the Chryse Planitia via the ULM system in the northern Martian lowlands. Later the course was caused by various impacts , e.g. B. the craters Bond and Holden formed, interrupted, creating lakes in these craters and in front of the crater walls such as in the Uzboi Vallis reservoirs.
Web links
- SA Wilson, JA Grant, AD Howard, DL Buczkowski: The Nature and Origin of Deposits in Uzboi Vallis. 2018 (PDF), doi: 10.1029 / 2017JE005508
Individual evidence
- ^ RJ Phillips: Ancient Geodynamics and Global-Scale Hydrology on Mars . In: Science . tape 291 , no. 5513 , March 15, 2001, ISSN 0036-8075 , p. 2587-2591 , doi : 10.1126 / science.1058701 .
- ^ Geologic map of the Margaritifer Sinus Quadrangle of Mars . US Geological Survey, 1979, doi : 10.3133 / i1144 .