Stability and fate of ferrihydrite during episodes of water/rock interactions on early Mars: An experimental approach
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Geophysical Research"
DOI: 10.1002/2016je005222
Abstract: The presence on the surface of Mars of ferrihydrite, a nanocrystalline iron oxide species, has long been suspected from spectroscopic observations and is further suggested by recent results from the MER (Mars Exploration Rovers) and… read more here.
Keywords: temperature; water; episodes water; rock interactions ... See more keywords
Geologic Constraints on Early Mars Climate
Sign Up to like & getrecommendations! Published in 2019 at "Space Science Reviews"
DOI: 10.1007/s11214-018-0575-5
Abstract: Early Mars climate research has well-defined goals (MEPAG 2018). Achieving these goals requires geologists and climate modelers to coordinate. Coordination is easier if results are expressed in terms of well-defined parameters. Key parameters include the… read more here.
Keywords: geologic constraints; mbox; mars climate; early mars ... See more keywords
Warming early Mars with climate cycling: The effect of CO2-H2 collision-induced absorption
Sign Up to like & getrecommendations! Published in 2018 at "Icarus"
DOI: 10.1016/j.icarus.2020.113770
Abstract: Abstract Explaining the evidence for surface liquid water on early Mars has been a challenge for climate modelers, as the sun was ∼ 30% less luminous during the late-Noachian. We propose that the additional greenhouse… read more here.
Keywords: absorption; induced absorption; surface; early mars ... See more keywords
Global climate and river transport simulations of early Mars around the Noachian and Hesperian boundary
Sign Up to like & getrecommendations! Published in 2021 at "Icarus"
DOI: 10.1016/j.icarus.2021.114618
Abstract: Abstract Over the past few decades, numerous geochemical and geological observations of early Mars have suggested the presence of surface river systems during the late Noachian and early Hesperian. A large volume of liquid water… read more here.
Keywords: transport; surface; river; global climate ... See more keywords
A post-accretionary lull in large impacts on early Mars
Sign Up to like & getrecommendations! Published in 2017 at "Nature Geoscience"
DOI: 10.1038/ngeo2937
Abstract: The timing and number of large impact basins on early Mars are poorly constrained. Gravity and topographic analyses support a lull in basin-forming impacts following the main stage of accretion. read more here.
Keywords: lull large; post accretionary; lull; accretionary lull ... See more keywords
The geological and climatological case for a warmer and wetter early Mars
Sign Up to like & getrecommendations! Published in 2018 at "Nature Geoscience"
DOI: 10.1038/s41561-018-0093-9
Abstract: The climate of early Mars remains a topic of intense debate. Ancient terrains preserve landscapes consistent with stream channels, lake basins and possibly even oceans, and thus the presence of liquid water flowing on the… read more here.
Keywords: warmer wetter; climate; case warmer; climatological case ... See more keywords
Valley formation on early Mars by subglacial and fluvial erosion
Sign Up to like & getrecommendations! Published in 2020 at "Nature Geoscience"
DOI: 10.1038/s41561-020-0618-x
Abstract: The southern highlands of Mars are dissected by hundreds of valley networks, which are evidence that water once sculpted the surface. Characterizing the mechanisms of valley incision may constrain early Mars climate and the search… read more here.
Keywords: fluvial erosion; valley formation; erosion; valley ... See more keywords
Geomicrobiological Heterogeneity of Lithic Habitats in the Extreme Environment of Antarctic Nunataks: A Potential Early Mars Analog
Sign Up to like & getrecommendations! Published in 2021 at "Frontiers in Microbiology"
DOI: 10.3389/fmicb.2021.670982
Abstract: Nunataks are permanent ice-free rocky peaks that project above ice caps in polar regions, thus being exposed to extreme climatic conditions throughout the year. They undergo extremely low temperatures and scarcity of liquid water in… read more here.
Keywords: antarctic nunataks; lithic habitats; habitats extreme; heterogeneity lithic ... See more keywords