Iron formations (IF) represent an iron-rich rock type that typifies many Archaean and
Proterozoic supracrustal successions and are chemical archives of Precambrian seawater …

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 …

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 …

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) …

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 …

It is generally accepted that photosynthetic marine planktonic bacteria were responsible for
the oxidation of dissolved ferrous iron (Fe (II)) and the subsequent deposition of iron …

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 …

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 …

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 …

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 …