The biogeochemistry of ferruginous lakes and past ferruginous oceans
Anoxic and iron-rich (ferruginous) conditions prevailed in the ocean under the low-oxygen
atmosphere that occurred through most of the Archean Eon. While euxinic conditions (ie …
atmosphere that occurred through most of the Archean Eon. While euxinic conditions (ie …
Greenalite and its role in the genesis of early Precambrian iron formations–A review
Iron formations are marine sedimentary rocks comprising Fe-rich and Si-rich bands that
were most widely deposited before~ 2.45 Ga, prior to the Great Oxidation Event (GOE). They …
were most widely deposited before~ 2.45 Ga, prior to the Great Oxidation Event (GOE). They …
Reverse weathering as a long-term stabilizer of marine pH and planetary climate
For the first four billion years of Earth's history, climate was marked by apparent stability and
warmth despite the Sun having lower luminosity. Proposed mechanisms for maintaining an …
warmth despite the Sun having lower luminosity. Proposed mechanisms for maintaining an …
Mars Science Laboratory CheMin data from the Glen Torridon region and the significance of lake‐groundwater interactions in interpreting mineralogy and sedimentary …
Abstract The Glen Torridon (GT) region in Gale crater, Mars is a region with strong clay
mineral signatures inferred from orbital spectroscopy. The CheMin X‐ray diffraction (XRD) …
mineral signatures inferred from orbital spectroscopy. The CheMin X‐ray diffraction (XRD) …
Abundant phosphorus expected for possible life in Enceladus's ocean
Saturn's moon Enceladus has a potentially habitable subsurface water ocean that contains
canonical building blocks of life (organic and inorganic carbon, ammonia, possibly hydrogen …
canonical building blocks of life (organic and inorganic carbon, ammonia, possibly hydrogen …
Evolution of the global carbon cycle and climate regulation on earth
The existence of stabilizing feedbacks within Earth's climate system is generally thought to
be necessary for the persistence of liquid water and life. Over the course of Earth's history …
be necessary for the persistence of liquid water and life. Over the course of Earth's history …
Primary productivity was limited by electron donors prior to the advent of oxygenic photosynthesis
To evaluate productivity on the early Earth before the advent of oxygenic photosynthesis, we
integrated estimates of net primary production by early anaerobic metabolisms as limited by …
integrated estimates of net primary production by early anaerobic metabolisms as limited by …
[HTML][HTML] Hydrothermal vent fluid-seawater mixing and the origins of Archean iron formation
Precambrian iron formation provides valuable windows onto ancient marine environments,
but exactly how these Fe-and Si-rich chemical sedimentary rocks formed have remained a …
but exactly how these Fe-and Si-rich chemical sedimentary rocks formed have remained a …
[HTML][HTML] Apatite nanoparticles in 3.46–2.46 Ga iron formations: Evidence for phosphorus-rich hydrothermal plumes on early Earth
Phosphorus is an essential nutrient that is thought to have regulated primary productivity in
global oceans after the advent of oxygenic photosynthesis. The prime source of seawater …
global oceans after the advent of oxygenic photosynthesis. The prime source of seawater …
Cycling phosphorus on the Archean Earth: Part II. Phosphorus limitation on primary production in Archean ecosystems
Several lines of evidence point to low rates of net primary production (NPP) in Archean
oceans. However, whether Archean NPP was limited by electron donors or nutrients …
oceans. However, whether Archean NPP was limited by electron donors or nutrients …