Signatures of early microbial life from the Archean (4 to 2.5 Ga) eon
K Lepot - Earth-Science Reviews, 2020 - Elsevier
Abstract The Archean era (4 to 2.5 billion years ago, Ga) yielded rocks that include the
oldest conclusive traces of life as well as many controversial occurrences. Carbonaceous …
oldest conclusive traces of life as well as many controversial occurrences. Carbonaceous …
[图书][B] Iron geochemistry: an isotopic perspective
Iron is a remarkable element in its relatively high abundance for its mass and its sensitivity to
(and control of) redox on a planetary scale over geologic time. Numerous volumes have …
(and control of) redox on a planetary scale over geologic time. Numerous volumes have …
The structure and volume of large geysers in Yellowstone National Park, USA and the mineralogy and chemistry of their silica sinter deposits
Siliceous sinter is formed by biogenic and abiogenic opal deposition around hot springs and
geysers. Using Structure-from-Motion photogrammetry we generated three-dimensional …
geysers. Using Structure-from-Motion photogrammetry we generated three-dimensional …
Differences in temperature and water chemistry shape distinct diversity patterns in thermophilic microbial communities
This report describes the biodiversity and ecology of microbial mats developed in thermal
gradients (20 to 65° C) in the surroundings of three drillings (Chiraleu [CH], Ciocaia [CI], and …
gradients (20 to 65° C) in the surroundings of three drillings (Chiraleu [CH], Ciocaia [CI], and …
[HTML][HTML] Carbonaceous matter in∼ 3.5 Ga black bedded barite from the Dresser Formation (Pilbara Craton, Western Australia)–Insights into organic cycling on the …
Carbonaceous matter (CM) in Archean rocks represents a valuable archive for the
reconstruction of early life. Here we investigate the nature of CM preserved in∼ 3.5 Ga old …
reconstruction of early life. Here we investigate the nature of CM preserved in∼ 3.5 Ga old …
Ecological dichotomies arise in microbial communities due to mixing of deep hydrothermal waters and atmospheric gas in a circumneutral hot spring
MC Fernandes-Martins, LM Keller… - Applied and …, 2021 - Am Soc Microbiol
Little is known of how the confluence of subsurface and surface processes influences the
assembly and habitability of hydrothermal ecosystems. To address this knowledge gap, the …
assembly and habitability of hydrothermal ecosystems. To address this knowledge gap, the …
Were early Archean carbonate factories major carbon sinks on the juvenile Earth?
Paleoarchean carbonates in the Pilbara Craton (Western Australia) are important archives
for life and environment on early Earth. Amongst others, carbonates occur in interstitial …
for life and environment on early Earth. Amongst others, carbonates occur in interstitial …
Why study geysers?
Why Study Geysers? Page 1 Why Study Geysers? Aside from captivating our senses, geysers
have much to tell us about subsurface fluids, climate change effects, and the occurrence and …
have much to tell us about subsurface fluids, climate change effects, and the occurrence and …
Cyanobacterial-algal crusts from Late Ediacaran paleosols of the East European Craton
B Kremer, J Kaźmierczak, J Środoń - Precambrian Research, 2018 - Elsevier
The top surface of the Ediacaran flood basalts of West Ukraine (Volyn), extruded during the
break-up of Rodinia supercontinent, is weathered into several meters thick paleosol …
break-up of Rodinia supercontinent, is weathered into several meters thick paleosol …
Are there ancient soils in the 3.7 GA Isua Greenstone Belt, Greenland?
GJ Retallack, N Noffke - Palaeogeography, palaeoclimatology …, 2019 - Elsevier
A lens of black schist within 3.7 Ga quartzites of Greenland may be Earth's oldest known
alluvial paleosol. The suspect metamorphic rock is a lens in orthoquartzite of berthierine …
alluvial paleosol. The suspect metamorphic rock is a lens in orthoquartzite of berthierine …