Dissolved silica affects the bulk iron redox state and recrystallization of minerals generated by photoferrotrophy in a simulated Archean ocean
Chemical sedimentary deposits called Banded Iron Formations (BIFs) are one of the best
surviving records of ancient marine (bio) geochemistry. Many BIF precursor sediments …
surviving records of ancient marine (bio) geochemistry. Many BIF precursor sediments …
Isotopic Constraints on the Nature of Primary Precipitates in Archean–Early Paleoproterozoic Iron Formations from Determinations of the Iron Phonon Density of States …
Iron formations (IFs) are chemical sedimentary rocks that were widely deposited before the
Great Oxidation Event (GOE) around 2.4–2.2 Ga. It is generally thought that IFs precipitated …
Great Oxidation Event (GOE) around 2.4–2.2 Ga. It is generally thought that IFs precipitated …
[HTML][HTML] Snapshot of a Paleoarchean seafloor: Evidence from 3.43-3.35 Ga Strelley Pool chert-pebble conglomerate for deposition, silicification, and erosion of …
Some of the oldest, well-preserved exhalative sedimentary rocks (ferruginous cherts and
jaspilites) occur in volcanic-dominated Paleoarchean sequences in the northern Pilbara …
jaspilites) occur in volcanic-dominated Paleoarchean sequences in the northern Pilbara …
Mineralogy of the 1.45 Ga Wafangzi manganese deposit in North China: Implications for pulsed Mesoproterozoic oxygenation events
Ancient manganese (Mn) deposits are primarily characterized by the presence of Mn (II)
carbonates that likely formed by the diagenetic reduction of precursor Mn (IV) oxides. As …
carbonates that likely formed by the diagenetic reduction of precursor Mn (IV) oxides. As …
Resolving the fate of trace metals during microbial remineralization of phytoplankton biomass in precursor banded iron formation sediments
Abstract Banded Iron Formations (BIFs) have long been considered a sedimentary record of
seawater trace metal composition during the Precambrian. However, recent work has …
seawater trace metal composition during the Precambrian. However, recent work has …
A Glimpse at Some Momentous Recent Discoveries and Developments in Geosciences
PV Sukumaran - Journal of the Geological Society of …, 2025 - pubs.geoscienceworld.org
Inventions and discoveries in geosciences are seldom momentous unlike those in physical,
chemical and biological sciences. Science today is increasingly trans-disciplinary …
chemical and biological sciences. Science today is increasingly trans-disciplinary …
The effects of microbial iron reduction and silica on green rust in banded iron formations
TJM Casselman - 2024 - deepblue.lib.umich.edu
The geochemical composition of Earth's oceans was different from that of modern oceans
prior to the Great Oxidation Event (2.4 Ga), with negligible free oxygen and abundant iron …
prior to the Great Oxidation Event (2.4 Ga), with negligible free oxygen and abundant iron …
Logan Medallist 8. Trace Elements in Iron Formation as a Window into Biogeochemical Evolution Accompanying the Oxygenation of Earth's Atmosphere
Iron formations exemplify a type of sedimentary rock found in numerous Archean and
Proterozoic supracrustal successions. They serve as a valuable chemical record of …
Proterozoic supracrustal successions. They serve as a valuable chemical record of …