Magnetic mineral diagenesis

AP Roberts - Earth-Science Reviews, 2015 - Elsevier
Reduction–oxidation (redox) reactions occur during burial because sediments contain
reactive mixtures of oxidised and reduced components. Diagenetic chemical reactions …

Environmental magnetism: Principles and applications

Q Liu, AP Roberts, JC Larrasoaña… - Reviews of …, 2012 - Wiley Online Library
In environmental magnetism, rock and mineral magnetic techniques are used to investigate
the formation, transportation, deposition, and postdepositional alterations of magnetic …

Formation processes of framboidal pyrite

RT Wilkin, HL Barnes - Geochimica et Cosmochimica Acta, 1997 - Elsevier
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 …

Wasp‐waisted hysteresis loops: Mineral magnetic characteristics and discrimination of components in mixed magnetic systems

AP Roberts, Y Cui, KL Verosub - Journal of Geophysical …, 1995 - Wiley Online Library
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 …

Magnetic properties of sedimentary greigite (Fe3S4): An update

AP Roberts, L Chang, CJ Rowan… - Reviews of …, 2011 - Wiley Online Library
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 …

[KNIHA][B] Magnetic stratigraphy

MD Opdyke, JET Channell - 1996 - books.google.com
Magnetic Stratigraphy is the most comprehensive book written in the English language on
the subject of magnetic polarity stratigraphy and time scales. This volume presents the …

Magnetic properties of sedimentary greigite (Fe3S4)

AP Roberts - Earth and Planetary Science Letters, 1995 - Elsevier
New data are presented here that document the previously poorly known magnetic
characteristics of sedimentary greigite (Fe3S4). Several diagnostic magnetic properties can …

Diagenetic formation of ferrimagnetic iron sulphide minerals in rapidly deposited marine sediments, South Island, New Zealand

AP Roberts, GM Turner - Earth and Planetary Science Letters, 1993 - Elsevier
Detailed magnetostratigraphic studies of Late Neogene siliciclastic sediments of the
Awatere Group, South Island, New Zealand (41° 45′ S, 174° 05′ E) have revealed a wide …

Environmental magnetism: an introduction

MJ Dekkers - Geologie en mijnbouw, 1997 - Springer
In environmental magnetism, the properties of magnetic minerals are used as proxy
parameters for many purposes. Examples are paleoclimate analysis, paleoceanographic …

Toward the discrimination of fine‐grained ferrimagnets by magnetic measurements in lake and near‐shore marine sediments

F Oldfield - Journal of Geophysical Research: Solid Earth, 1994 - Wiley Online Library
The magnetic properties of low field susceptibility (χ), frequency dependent susceptibility
(χfd), and susceptibility of anhysteretic remanent magnetisation (χARM) are used to define …