Reduction–oxidation (redox) reactions occur during burial because sediments contain
reactive mixtures of oxidised and reduced components. Diagenetic chemical reactions …

Glycerol dialkyl glycerol tetraether (GDGT) lipids are membrane lipids which were long
thought to be synthesized mainly by archaea, organisms thought to be limited to extreme …

In environmental magnetism, rock and mineral magnetic techniques are used to investigate
the formation, transportation, deposition, and postdepositional alterations of magnetic …

Molecular organic geochemical proxies are increasingly being utilized to reconstruct past
environmental conditions as new tools continue to be discovered and developed. To date …

Greigite (Fe3S4) is an authigenic ferrimagnetic mineral that grows as a precursor to pyrite
during early diagenetic sedimentary sulfate reduction. It can also grow at any time when …

Recent interest in the ocean's capacity to absorb atmospheric CO2 and buffer the
accompanying “ocean acidification” has prompted discussions on the magnitude of ocean …

Many studies have confirmed that size distributions of framboidal pyrite can be an effective
indicator of bottom-water redox conditions in modern as well as ancient sedimentary …

Redox sensitive trace elements in pyrite, including nodules, are increasingly used to infer
the chemical conditions of ancient oceans—but considerable uncertainty remains regarding …

Pure ferrimagnetic greigite (Fe3S4) has been synthesized by reacting ferric chloride with
thiourea and formic acid at 170° C. Sample purity was confirmed by X‐ray diffraction …

Diagenetic alteration of magnetic minerals occurs in all sedimentary environments and
tends to be severe in reducing environments. Magnetic minerals provide useful information …