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

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

First‐order reversal curve (FORC) diagrams are constructed from a class of partial magnetic
hysteresis loops known as first‐order reversal curves and are used to understand …

Pyrite framboids are densely packed, generally spherical aggregates of submicron-sized
pyrite crystals. In this study, a survey was made of framboid size distributions in recently …

Pyrite framboid formation may be the result of four consecutive processes:(1) nucleation and
growth of initial iron monosulfide microcrystals;(2) reaction of the microcrystals to greigite …

Rock magnetic studies of complex systems that contain mixtures of magnetic minerals or
mixed grain size distributions have demonstrated the need for a better method of …

The sequestration of sulfur within sedimentary pyrite is a major sink in the global
biogeochemical sulfur cycle and has consequent impacts on the related cycles of carbon …

Environmental magnetism involves the application of rock and mineral magnetic techniques
to situations in which the transport, deposition, or transformation of magnetic grains is …

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 …

New data are presented here that document the previously poorly known magnetic
characteristics of sedimentary greigite (Fe3S4). Several diagnostic magnetic properties can …