the IRM Quarterly

The IRM Quarterly, as the title suggests, is published four times each year. The Quarterly includes articles on new instruments, techniques, meeting reports and historical figures. In addition, Visiting Fellows provide a short description of their recent work at the IRM. A list of recent abstracts in the rock-magnetic literature is also maintained for each issue, and any news of interest to rock magnetists is made available.

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Current Issue

Volume 17 Number 3:
- Whither Helium? by Mike Jackson, IRM
- VF Reports:
The Quarterly Back-Issues
Volume: 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
Volume 17 Number 2:
- And Unknown Unknowns... on quantifying uncertainty in rock-magnetic properties by Mike Jackson, IRM
- VF Reports:
Volume 17 Number 1:
- The Updated Hitchhiker's Guide to IRM by Brian Carter-Stiglitz, IRM
- Reports:
  - VF: Ayca Y. Ozmen (Istanbul University Dep't of Geophysics).
  - Spring AGU 2007: Ted Evans (University of Alberta).
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Volume 16 Number 4:
- Electron Holography and Rock Magnetism by Josh Feinberg, IRM
- VF reports:
  - Yohan Guyodod (LSCE/IPSL, Laboratoire CEA-CNRS-UVSQ Campus du CNRS Gif-sur-Yvette).
  - Christoph Geiss (Trinity College).
Volume 16 Number 3:
- Nanomagnets in Medicine by Brian Carter-Stiglitz, IRM
- VF reports:
  - Liao Chang (University of Southhampton)
Volume 16 Number 2:
- Santa Fe VII by Subir Banerjee and Bruce Moskowitz, IRM
- VF reports:
  - France Lagroix (IPGP).
  - Alexei Smirnov (Yale).
Volume 16 Number 1:
- Tiva Canyon Tuff (II) by B. Carter-Stiglitz, et al., IRM
- VF reports:
  - Phil "pjam" McClausland (University of Western Ontario).
  - Suzanne McEnroe (NGS).
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Volume 15 Number 4:
- Fe3O4 Smoked at 80 K by B. Carter-Stiglitz, et al., IRM
- VF reports:
  - David Krasa (University of Edinburgh).
Volume 15 Number 3:
Volume 15 Number 2:
Volume 15 Number 1:
Volume 14 Number 4:

Volume 14 Number 3:

Volume 14 Number 2:

Volume 14 Number 1:
- Santa Fe VI Mike Jackson, Subir Banerjee
- VF reports:
  - Anne Lise Salome; Magnetic parameters of river sands: tracers of rocks? Sands of La Martinique Island.
  - Laurent Carporzen; Superparamagnetic Contribution to the Magnetic Properties of Shocked Rocks from the Vredefort Meteorite Crater.
  - Milagrosa Aldans; Identification of Magnetic Authigenesis in drill-cuttings from Venezuelan Oil Fields.
  - Xixi Zhao; Detecting oxidation state of magnetite-bearing basalts from China using low-temperature magnetic data.
TOP
Volume 13 Number 4:
- Imaginary Susceptibility A Primer Mike Jackson
- VF reports:
  - Eric Ferre; High-field AMS of mantle peridotites.
  - Claire Carvallo; FORC diagrams of mixtures of synthetic hematite and magnetite.
  - Donald Thieme; Environmental magnetism of Susquehanna Valley alluvium.
Volume 13 Number 3:
- Maintaining Standards III: Pozzolana Cement cross-calibration samples available Mike Jackson, Leonardo Sagnotti, Pierre Rochette, and Peter Sølheid
- VF reports:
  - Yongxiang Li; Low-temperature, high-temperature, and hysteresis properties of sediments from White Lake, northwestern New Jersey.
  - Yongjae Yu; Temperature dependence of magnetic hysteresis.
Volume 13 Number 2:
- On the tracks of the elusive magnetic oxyhydroxides Yohan Guyodo
- VF reports:
  - Suzanne McEnroe and Laurie Brown; Rock magnetism and magnetic nanostructure of exsolved ilmenite-hematite: Development and testing a realistic atomic hypothesis with implications for magnetic anomaly interpretation on Earth and Mars
  - Charly Aubourg; What is the significance of a pervasive normal polarity in Tertiary remagnetizations?
  - Daming Wang; The hysteresis properties of multidomain magnetite and titanomagnetite/-maghemite in Mid-Ocean Ridge Basalt
Volume 13 Number 1:
- Out, damned spot! Mike Jackson
- VF reports:
  - Belen Oliva Urcia; Discontinuous deformation of remagnetization of limestones in the Internal Sierras (Southern Pyrenees, Spain)
  - Erik Eneroth; Oxidation of pyrite and marcasite - Processes with environmental significance
  - Maria Julia Orgeira; Environmental Magnetism in Present Soils, Buenos Aires Province, Argentina
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Volume 12 Number 4:
- Maintaining Standards II more fun with calibration Mike Jackson, Jim Marvin, and Peat Sølheid
- VF reports:
  - Julia Hammer and Stefanie Brachfeld;An Igneous Origin For Martian Magnetic Anomalies?
  - Özden Özdemir; Low-Temperature Hysteresis and Other Magnetic Properties of Hematites
  - Valentia Shcherbakova; Analysis of Mechanisms Causing the Thermal Pre-History Dependence of Value and Stability in MD and PSD Samples
Volume 12 Number 3:
- Maintaining High Standards Mike Jackson
- At Long Last, A Logo Mike Jackson and Peat Sølheid
- VF reports:
  - Xixi Zhao; Magnetic Carriers in Leg 183 Basement Cores From the Kerguelen Plateau in the Southern Indian Ocean
  - Claire Carvallo; Part 1. Rock magnetic properties of ODP Leg 197 basalts
  - David Dunlop; An Inverse Thellier Method of Paleointensity Determination
  - Yi-Liang Li and Chuanlun Zhang; Lepidocrocite as the Intermediate Phase between Ferrihydrite and Magnetite During Bacterial Iron Reduction
Volume 12 Number 2:
- “Santa Erice” Fundamental Rock Magnetism and Environmental Applications Mike Jackson
- Erice’s Remanence: The Magnetic Attraction of the Italian Ferrovia Betsy Leach
- VF reports:
  - Adrian Muxworthy; Part 1. Low-temperature investigation of ARM and IRM induced in MD magnetite
  - David Krása; Partial self-reversal of the NRM in basalts: Identifying the responsible mineral phases
  - Daming Wang; Rock magnetic properties of young ocean-floor basalts during initial low temperature alteration
  - Yongjae Yu; A New Stepwise Low-temperature Paleointensity Determination Technique
Volume 12 Number 1:
- Seahenge, Susceptibility, and more ways to be wrong Neil Linford, Mike Jackson, Jim Marvin
- VF reports:
  - Helmut Katzgraber, Kai Liu and Christopher Pike; Mechanisms of Magnetization Studied by Low-Temperature FORC Analysis
  - BangYeon Kim; Environmental magnetic study of Lake Ely, PA
  - Valentia Shcherbakova; Analysis of Mechanisms Causing the Thermal Pre-History Dependence of Value and Stability in MD and PSD Samples
TOP
Volume 11 Number 4:
- On Sample Size and Shape Effects -or- Exactly How Magnetic Is Your Sample? Mike Jackson, Peat Solheid, Jim Marvin
- VF Reports:
  - Gunther Kletetschka; Remanent Magnetism Record in a Recent Basaltic Tree Mold
  - Fatima Martin-Hernandez; Magnetic Anisotropy of Biotite
  - Alexander Zwing; Rock magnetic properties of remagnetized sediments from Middle and Eastern Europe
Volume 11 Number 3:
- The Rock Magnetic Bestiary Peat Solheid, Mike Jackson
Volume 11 Number 2:
- von Humbolts' Equinoxial Journey Mike Jackson
- VF reports
  - Paul Kelso and Basil Tikoff; Separation of paramagnetic and ferrimagnetic susceptibility anisotropy using high field and low field methods: Or, adventures at 1 am with a VSM
  - David J. Dunlop; Partial Transition Warming Remanence ("Inverse TRM")
  - Ozden Ozdemir; Stable Thermoremanence And Memory In Hematite
  - Bernie A. Housen; 2001 Hysteresis Loops: A Rock-Magnetic Odyssey
Volume 11 Number 1:
- FORC analysis of frozen ferrofluids Christopher Pike and Jim Marvin
- VF reports
  - Monika Cogoini; Investigating the role of microbial versus chemical processes in magnetite mineral formation in soils
TOP
Volume 10 Number 4:
- A cautionary note On interpreting frequency-dependence of susceptibility solely in terms of superparamagnetism or Two ways to be wrong Helga de Wall, Horst-UlrichWorm
- VF reports:
  - Elena Virina; Magnetic properties of loess-palaeosol deposits from the Russian plain for particle size estimations
  - BangYeon Kim; Environmental magnetic study of Lake Ely, PA
  - Valentia Shcherbakova; Analysis of Mechanisms Causing the Thermal Pre-History Dependence of Value and Stability in MD and PSD Samples
Volume 10 Number 3:
- Wherefore Gadolinium? Magnetism of the Rare Earths Mike Jackson
- VF reports:
  - Jürgen Matzka; Titanomaghemite in ocean floor basalt: low-temperature/ high field hysteresis loops
Volume 10 Number 2:
- Santa Fe V Mike Jackson
- VF reports:
  - Suzanne A. McEnroe and Laurie Brown; Rock-Magnetic Studies in Support of Aeromagnetic Anomaly Interpretation
  - Yong Jae Yu; Rock Magnetic and Paleomagnetic Experiments on Some Self-reversing Pumices from Japan
  - David Dunlop; Are Meteorite NRM's and Paleointensity Estimates Contaminated by Terrestrial Inverse TRM?
  - Özden Özdemir; TRM and Low-Temperature SIRM in Submicron Hematites
Volume 10 Number 1:
- Cryosota Peat Solheid and Jim Marvin
- VF reports:
  - Andrei Kosterov; Magnetic hysteresis of pseudo-single-domain and multidomain magnetite below Verwey transition
  - Ann M. Hirt; Magnetic Properties at Low Temperature of Ferric Hydroxides
  - Ulrike Draeger; Magnetic mineralogy and grain size distribution of iron oxides in basaltic samples before and after CRM experiments
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Volume 9 Number 4:
- Gilbert On the Magnet, MDC Mike Jackson and Wm Gilbert
- VF reports:
  - Neil Linford; Evidence Of Domestic Fires In Antiquity: A Mineral Magnetic Approach Based On Recent Experimental Samples
  - Gunther Kletetschka; Grain size dependent magnetic susceptibility of hematite
Volume 9 Number 3:
- Astronomical Magnetic Fields Mike Jackson
- VF reports:
  - H.F. Passier; Magnetic Properties Around The Active Oxidation Front In Eastern Mediterranean Sediments
Volume 9 Number 2:
- Magnets on Ice Holocene Paleoclimate Records from the Antarctic Peninsula Stefanie Brachfeld
- Magnets on the Cob Studying Paleoclimate in a Cornfield Christoph Geiss
- VF reports:
  - David Dunlop; High-temperature hysteresis, partial TRM, and stepwise LTD in sized magnetite grains (0.6 - 135 mm)
  - Ken Kodama; Testing For Magnetosomes In Lake Ely Sediments
  - Özden Özdemir; Low-Temperature Remanence In Single Crystals Of Titanomagnetites
Volume 9 Number 1:
- Measure for Measure: The Beauty of Magnetic Units Mike Jackson
- VF reports:
  - Alexei Smirnov;LOW-TEMPERATURE MAGNETIC PROPERTIES OF PELAGIC SEDIMENTS (ODP SITE 805C)
TOP
Volume 8 Number 4:
- New Low-Temperature Measurement Capabilities Mike Jackson and Jim Marvin
- VF reports:
  - David Dunlop; Experiments on TRM and partial TRM in 125-150 mm magnetite grains
  - Özden Özdemir; Low-Temperature Properties Of An Oriented Multidomain Magnetite
  - Patrick M. Colgan; Rock magnetic properties and paleomagnetism of tills from Boston Harbor, Massachusetts
Volume 8 Number 3:
- Mössbauer Revisited Peter A Solheid
- VF reports:
  - Horst-Ulrich Worm; Hysteresis Properties of Oceanic Gabbros and the Superparamagnetism of the Yucca Mountain Tuff
  - Zhichun Jing; The Study of Site Formation Processes Using Rock Magnetism
  - Beatriz Ortega and Guerrero; Magnetic characteristics of a playa lake sediments in Baja California
Volume 8 Number 2:
- Santa Fe IV The Geodynamo and Environmental Change: Interpreting Paleorecords through Rock Magnetism Mike Jackson
- VF reports:
  - Chuanlun Zhang; Magnetite produced by thermophilic bacteria
  - Xixi Zhao; Rock Magnetic Studies of the Iberian Peridotites
  - R. Douglas Elmore; Diagenetic and Pedogenic Magnetite Signatures
Volume 8 Number 1:
- Postdoctoral Transitions IV Pieter Vlag
- VF reports:
  - Juan Cruz Larrasoana; Rock Magnetism of Eocene Marls from the Pyrenees
  - Neil Linford; Characterising the Magnetic Mineralogy and Grain Size Distribution of Archaeological Sediments
TOP
Volume 7 Number 4:
- In the Shadow of the Comet: The Geophysical Bounty of Edmond Halley Mike Jackson
Volume 7 Number 3:
- Postdoctoral Transitions III David Williamson
- VF reports:
  - Rob Coe; Fidelity of Magnetizationof Mono Lake Sediments
  - Weiming Zhou; Characterizing the Magnetic Minerals of Ocean-Floor Basalts
  - Luca Lanci; Magnetic Properties of Soils and Lake Sediments
Volume 7 Number 2:
- Postdoctoral Transitions II Taras Pokhil
- VF reports:
  - Adrian Muxworthy; Metastability of partial thermoremanent magnetizations in multidomain magnetite
  - Weiming Zhou; Characterizing the Magnetic Minerals of Ocean-Floor Basalts
  - Andrei Kosterov; Thermal variation of hysteresis in volcanic rocks and the performance of the Thellier paleointensity method.
Volume 7 Number 1:
- Postdoctoral Transitions Rick Oches
- VF reports:
  - Harald Petermann; Biogenic magnetite in South Atlantic deep-sea sediments
  - Catherine Kissel; Rock magnetic properties and magnetic fabric of basaltic rocks from Icelandic dykes
  - Maria T. Cioppa; Magnetic Mineralogy in Three Lakes in NE Pennsylvania
TOP
Volume 6 Number 4:
- Sample Preparation Specifications Mike Jackson
- VF reports:
  - Bodo Katz; Remagnetization and Diagenesis of Clays
  - Xiaomin Fang; Rock magnetic studies of a high resolution loesspaleosol sequence at Jiuzhoutai of Lanzhou, western China
Volume 6 Number 3:
- Poor Richard's Theory of the Earth Benjamin Franklin,esq. Mike Jackson
- VF reports:
  - Tim F. Wawrzyniec; Rock Magnetic Properties of Rocks of the Elk Range, Pitkin & Gunnison Counties, Colorado
  - Roy Roshko; Modeling Hysteresis in Particulate and Continuous Recording Media
Volume 6 Number 2:
- Paleointensity, Paleoclimate Share Spotlight in Santa Fe Mike Jackson
- VF reports:
  - Adrian Muxworthy; Experiments on multidomain magnetite near the Verwey transition
  - Laurie Brown; Rock Magnetic Study of the Treasure Mountain Tuffs
Volume 6 Number 1:
- The Hitchhiker's Guide to the IRM Mike Jackson
- VF reports:
  - Andrew Warnock; LTD of Multicomponent NRMs and Thermochronometry in Grenville Rocks
  - Özden Özdemir and David J. Dunlop; I. Rock Magnetic Experiments on Single-Crystal Magnetite and Goethite
  - Özden Özdemir and David J. Dunlop; II. Thellier Paleointensity Experiments on Natural Mineral Separates
TOP
Volume 5 Number 4:
- Micro-VSM Maximizes Magnetic Measurements Peat Solheid and Rick Oches
- VF reports:
  - Koji Fukuma; High-temperature hysteresis properties of oceanic crustal rocks
  - Chorng-Shern Horng; Greigite Alteration and Remanence
  - Jonathan Glen and Stuart Gilder;Attempted High- Pressure Domain Imaging in Iron
Volume 5 Number 3:
- IRM Hosts Workshop on Sedimentary Biogeomagnetism Stefanie Brachfeld
- VF reports:
  - Phil Schmidt and Dave Clark; Magnetite-Hematite Exchange Coupling
  - Ellen Platzman; Relationship Between Rock Magnetic Properties and Paleomagnetic Observations in Greenschist Grade Dyke Rocks from Southern Spain.
  - Pieter Vlag; Rock Magnetic Properties of Maar Lake Sediments
Volume 5 Number 2:
- Some Changes in Arrangements Improve Facility Utility Chris Hunt
- VF reports:
  - David Dunlop and Özden Özdemir; A Potpourri of Rock- Magnetic Experiments
  - Xixi Zhao; Rock Magnetism of Hydrothermal Sulfide Deposits from the Atlantic
  - James C. Pickens; Rock Magnetism of the Matuyama-Brunhes Reversal in Chilean Rocks
Volume 5 Number 1:
- IRM is Fulfilling its Educational Mission Subir Banerjee
- VF reports:
  - Richard Harrison;Magnetic Properties of the Magnetite-Spinel Solid-Solution Series
  - James G. King; Magnetic Properties of agnetite Produced by the Electron-Beam Lithography Method
  - Archana Pawse; ESR Spectra and Magnetic Properties of Guatemalan Volcanic Ash
  - Darcy Van Patten; Granulometry in Zero- Age Basalt using Optical and Magnetic Analyses
TOP
Volume 4 Number 4:
- Plethora of Postdocs is Plainly a Plus Eric Oches, Bernard Housen and Taras Pokhil
- VF reports:
  - Maria T. Cioppa; The Effects of Strain on Hematite Grain Size
  - Toshitsugu Yamazaki; Rock Magnetism of Pacific Pelagic Red Clay
  - Carl Richter; Environmental Control on Rock-Magnetic Parameters of Deep-Sea Sediments
  - Harry Rowe; Magnetic Fraction of Pleistocene Lake Sediments from New Mexico
Volume 4 Number 3:
- Magnetic Microscopy Center is Flourishing E. Dan Dahlberg
- VF reports:
  - Kaushik Katari; Rock-Magnetic Study of Clinker and Archaeomagnetic Hearth Samples
Volume 4 Number 2:
- Kudos for the Kappabridge Chris Hunt
- VF reports:
  - Maria T. Cioppa; The Effects of Strain on Hematite Grain Size
  - Joe Stoner; Magnetic Studies of Marine Sediments from the Deep Labrador Sea
  - John Geissman; From Remagnetized Carbonates to Sandstone Dikes, and Much More
  - Weixin Xu; Rock-Magnetic Studies of Oceanic Pillow Basalts, Remagnetized Carbonates, and Gabbros
  - David Dunlop and Özden Özdemir; Studies of Remanences in Magnetite and Goethite
Volume 4 Number 1:
- LakeShore Lore: Much is in Store Chris Hunt
- VF reports:
  - Bob Butler; Rock-Magnetic Constraints on Remagnetized Paleozoic Carbonates
  - Pavel Sroubek; Rock-Magnetic Study of Czech Cave Sediments
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Volume 3 Number 4:
- Tasks at the IRM Take Time, Part III Stefanie Brachfeld, Sherry Foss, Chris Hunt, Gin Kletetschka, Jim Marvin, Bruce Moskowitz, Scott Rubin, Mitra Sahu, Peat Solheid, Weiwei Sun
- VF reports:
  - Peter J. Jaumann; Mineral Magnetic Properties of Lake Sediments as a Last Glacial Maximum Paleoclimate Proxy
  - Satria Bijaksana; Rock-Magnetic Study of Magnetic Inclination Shallowing in Sediments
  - Suzanne McEnroe; Magnetic Properties of Intrusive Igneous Rocks from New England
Volume 3 Number 3:
- Tasks at the IRM Still Take Time Stefanie Brachfeld, Sherry Foss, Chris Hunt, Gin Kletetschka, Jim Marvin, Bruce Moskowitz, Scott Rubin, Mitra Sahu, Peat Solheid, Weiwei Sun
- VF reports:
  - John K. Eyre; Thermomagnetic Properties of Loess and Paleosol
  - Joe Rosenbaum and Rich Reynolds; Magnetic Studies of Lake Sediments and of Lavas
  - Elizabeth Schuler and Christine Orme; Magnetic Domains in Cobalt/Copper Multilayers Revealed on the MOKE
  - Bernie Housen; Rock Magnetism of the Cascadia Accretionary Prism and the Santa Barbara Basin: ODP Leg 146
Volume 3 Number 2:
- Performing Tasks at the IRM Takes Time Stefanie Brachfeld, Sherry Foss, Chris Hunt, Gin Kletetschka, Jim Marvin, Bruce Moskowitz, Scott Rubin, Mitra Sahu, Peat Solheid, Weiwei Sun
- VF reports:
  - Özden Özdemir and David Dunlop; Chemical remanence in goethite and the remanence properties of magidentify
  - Christoph Geiß; Hysteresis properties of ash particles from the Kerguelen plateau
  - Weixin Xu; Hysteresis properties of magnetic spherules extracted from Paleozoic
  - Andrew P. Roberts; Characterization of the magnetic properties of the iron sulfide greigite
  - Barbara Maher; A little bit of everything from human bones to glacial dust to Chinese loess
Volume 3 Number 1:
- A Rock-Magnetic Journey through Asia Subir Banerjee
- VF reports:
  - Mineral magnetic studies of soil development in central Mississippi Valley
  - Mike McWilliams and Hagai Ron; Magnetic properties of dry lake sediments from the Lisan Formation, Isseries
  - John Stamatakos; SP magnetite in the Münster Basin limestones of northwestern Germany
TOP
Volume 2 Number 4:
MFM's Miniscule Mechanism Maps Magnetic Moments Chris Hunt
VF reports:
Koji Fukuma; Magnetic properties of Chinese loess and Pacific pelagic clay
Mike McWilliams and Hagai Ron; Magnetic properties of dry lake sediments from the Lisan Formation, Isseries
David J. Fruit and R. Douglas; Tectonic components of NRM in folded rocks from northwestern Colorado
Volume 2 Number 3:
Mössbauer: Marvelous Measurements of Magnetic Minerals Chris Hunt
VF reports:
Clive Roberts; Tertiary magmatism in the Bristol Channel, southwest England
Janet Pariso; Magnetic properties of altered dike rocks from the oceanic crust
Volume 2 Number 2:
MOKE Magnifies Magnetic Moments [Magnificently!] Chris Hunt and Sanghamitra Sahu
VF reports:
David Grimley; Magnetic Properties of Loess/Paleosol Sequences in Southwestern Illinois and Eastern Missouri
Franz Heider; Magnetic properties of single magnetite crystals
Volume 2 Number 1:
New Equipment at IRM Allows Novel Measurements Chris Hunt
VF reports:
Tomoko Ogishima; Effect of hydrothermal alteration on synthetic titanomagnetite
Chad McCabe; Magnetic properties of remagnetized Paleozoic carbonates from Europe
Özden Özdemir and David Dunlop; Chemical remanence in hematite and viscous remanence in magnetite

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Volume 1 Number 3:
Paleomagnetic Data Available On-line Bill Harbert
VF reports:
Eiichi Kikawa,; Magnetic Properties of Oceanic Gabbros and the Origin of their NRM
Volume 1 Number 2:
Workshop a Success
VF reports:
David Dunlop and Özden Özdemir; Magnetite Inclusions in Biotites; Magnetic Properties of Single Crystals of Magnetite
Dave Douglass; Thermo-chemical Magnetic Overprinting in a Simple "Real Rock" System
Gina Marie Frost; Rock Magnetic Studies on Carbonates and Redbeds from China
Volume 1 Number 1:
IRM Established Subir Banerjee

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