Ontology highlight
ABSTRACT:
SUBMITTER: de Haas T
PROVIDER: S-EPMC4557294 | biostudies-literature | 2015 Jun
REPOSITORIES: biostudies-literature
de Haas T T Hauber E E Conway S J SJ van Steijn H H Johnsson A A Kleinhans M G MG
Nature communications 20150623
Liquid water is currently extremely rare on Mars, but was more abundant during periods of high obliquity in the last few millions of years. This is testified by the widespread occurrence of mid-latitude gullies: small catchment-fan systems. However, there are no direct estimates of the amount and frequency of liquid water generation during these periods. Here we determine debris-flow size, frequency and associated water volumes in Istok crater, and show that debris flows occurred at Earth-like f ...[more]