Suzanne A. McEnroe
Background and activities
My research is focused on understanding the fundamental magnetic properties of rocks and minerals, and how the atomic-scale properties affect magnetic anomalies on local, regional and satellite scales. My projects and funding, have ranged from nanotechnology through mineral resource investigations to space-research programs. My PhD (1993) focused on paleomagnetism, geochemistry and rock magnetism. Since then, my publications (>90 in international journals) show an increasing interdisciplinary approach to geological and geophysical problems in rock and mineral magnetism, crustal magnetism, exploration, mineralogy, petrology, and nanotechnology. My research is highly interdisciplinary and my co-authors are in the fields of chemistry, crystallography, nanomaterials, physics, and geophysics.
I had the honor to give the Bullard Lecture in 2009, at the American Geophysical Union (AGU), on the subject of Crustal Magnetism. In 2019 I was given the AGU Gilbert Award for 'groundbreaking fundamental research on magnetic anomaly sources in the crust, with implications that reach broadly through the Earth and planetary science' and for 'leadership in research that has transformed our understanding of mineral magnetism, paleomagnetic field records, and geomagnetic field anomalies'.
Prior to joining NTNU I was a researcher at the Geological Survey of Norway (1997-2012 ), where I worked on both applied and scientific geological and geophysical projects. The knowledge I gain at the Geological Survey of Norway was invalable in developing my fundemental research on magnetic anomalies and rock and mineral magnetism
Since moving to NTNU I have built up two laboratories focusing on the magnetic behaviour of crustal rocks at all scales (atomic to satellite) with 2 postdocs, 3PhDs, and 5 masters students working on these topics. I have been leader for the Geophysics Group at IGP since 2018.
I was a chair of the Advisory Board for the Institute of Rock Magnetism, University of Minnesota, USA. I am member of Det Kongelige Norske Videnskabers Selskab (The Royal Norwegian Society of Sciences and Letters), Norges Tekniske Vitenskapsakademi (Norwegian Academy of Technical Sciences), a Fellow of the Mineralogical Society of America, and the Geological Society of America. Presently I am Board member of the Deep research School (UiO) and National Geomagnetism Laboratory at UiO.
Courses
- PG8202 - Common Earth Modeling in HC and Mineral Exploration. Application of Gravimetry and Magnetometry in Geological Models
- GEOL3092 - Special Course for the Master's Thesis
- GB8110 - Mineral and Crustal Magnetism
- GEOL3095 - Master's Thesis in Geology
- TGB4286 - Petrophysical Techniques for Experimental Geophysics
- GEOL3093 - Special Course for the Master's Thesis
- TGB4280 - Geophysical Exploration for Geological and Environmental Applications
- TPG4575 - Petroleum Geosciences, Specialization Course
- TPG4925 - Petroleum Geosciences, Master's Thesis
- TPG4195 - Interpretation and Modelling of Gravimetry and Magnetometry
- GB8105 - Applied Geophysics and Petrology for Exploration in Geology and Environment
- TPG4570 - Petroleum Geosciences, Specialization Project
- TGB4585 - Mineral Production and Resource Geology, Specialization Course
Scientific, academic and artistic work
Displaying a selection of activities. See all publications in the database
Journal publications
- (2022) Hysteresis parameters and magnetic anisotropy of silicate-hosted magnetite exsolutions. Geophysical Journal International. vol. 229 (3).
- (2021) 3D Joint Inversion of Scanning Magnetic Microscopy Data. Geophysical Research Letters. vol. 49 (1).
- (2021) Mapping and modelling mineral sources of natural remanent magnetization from the Russell Belt microcline-sillimanite gneiss, Northwest Adirondack Mountains, USA. Geochemistry Geophysics Geosystems. vol. 22 (3).
- (2021) Lamellar magnetism and exchange bias in billion-year-old metamorphic titanohematite with nanoscale ilmenite exsolution lamellae-III. Atomic-magnetic basis for experimental results. Geophysical Journal International. vol. 226 (2).
- (2020) Mixing of heterogeneous, high-MgO, plume-derived magmas at the base of the crust in the Central Iapetus Magmatic Province (Ma 610-550): Origin of parental magmas to a global LIP event. Lithos. vol. 364-365.
- (2020) Magnetic mapping of fault zones in the Leka Ophiolite Complex, Norway. Norwegian Journal of Geology. vol. 100.
- (2020) Hysteresis of Natural Magnetite Ensembles: Micromagnetics of Silicate‐Hosted Magnetite Inclusions Based on Focused‐Ion‐Beam Nanotomography. Geochemistry Geophysics Geosystems. vol. 21 (11).
- (2020) Separating geometry- from stress-induced remanent magnetization in magnetite with ilmenite lamellae from the Stardalur basalts, Iceland. Geochemistry Geophysics Geosystems. vol. 21 (2).
- (2019) Multistep Parametric Inversion of Scanning Magnetic Microscopy Data for Modeling Magnetization of Multidomain Magnetite. Geochemistry Geophysics Geosystems. vol. 20 (11).
- (2019) Magnetic Mineralogy and Petrophysical Properties of Ultramafic Rocks: Consequences for Crustal Magnetism. Geochemistry Geophysics Geosystems. vol. 20 (4).
- (2018) Portrait of a giant deep-seated magmatic conduit system: The Seiland Igneous Province. Lithos. vol. 296-299.
- (2018) Magnetism at Depth: A View from an Ancient Continental Subduction and Collision Zone. Geochemistry Geophysics Geosystems. vol. 19 (4).
- (2018) Geophysical expression of the Leka Ophiolite, Norway modeled from integrated gravity, magnetic and petrophysical data. Norwegian Journal of Geology. vol. 98 (1).
- (2018) Magnetic anomalies of the mafic/ultramafic seiland igneous province. Norwegian Journal of Geology. vol. 98 (1).
- (2018) Mapping magnetic sources at the millimeter to micrometer scale in dunite and serpentinite by high-resolution magnetic microscopy. Lithos. vol. 323.
- (2017) Influence of static alternating field demagnetization on anisotropy of magnetic susceptibility: Experiments and implications. Geochemistry Geophysics Geosystems. vol. 18 (9).
- (2017) Effect of magnetic anisotropy on the natural remanent magnetization in the MCU IVe' layer of the Bjerkreim Sokndal Layered Intrusion, Rogaland, Southern Norway. Journal of Geophysical Research (JGR): Solid Earth. vol. 122 (2).
- (2017) Effects of magnetic anisotropy on total magnetic field anomalies. Journal of Geophysical Research (JGR): Solid Earth. vol. 122 (11).
- (2017) Spin orientation in solid solution hematite-ilmenite. American Mineralogist. vol. 102 (6).
- (2017) Lamellar magnetism and exchange bias in billion-year-old metamorphic titanohematite with nanoscale ilmenite exsolution lamellae: II. Exchange-bias at 5 K after field-free cooling of NRM. Geophysical Journal International. vol. 208 (2).
- (2016) Lamellar Magnetism and Exchange Bias in Billion-year-old Titanohematite with Nanoscale Ilmenite Exsolution Lamellae: I. Mineral and Magnetic Characterization. Geophysical Journal International. vol. 206 (1).
- (2016) Remanent magnetization, magnetic coupling and interface ionic configurations of intergrown rhombohedral and cubic Fe-Ti oxides: a short survey. American Mineralogist. vol. 101 (3).
- (2016) Magnetic fabrics in the Bjerkreim Sokndal Layered Intrusion, Rogaland, Southern Norway. Tectonophysics. vol. 688.
- (2016) Nonlinear Preisach maps: Detecting and characterizing separate remanent magnetic fractions in complex natural samples. Journal of Geophysical Research (JGR): Solid Earth. vol. 121 (12).
- (2016) Anatomy of a deep crustal volcanic conduit system; The Reinfjord Ultramafic Complex, Seiland Igneous Province, Northern Norway. Lithos. vol. 252-253.
- (2016) Crustal magnetic signature of planets: Tracking the solid solution of Fe and exsolution of magnetite in Bushveld plagioclase by magnetic and Mössbauer properties. Geological Society of America, Abstracts with Programs.
- (2016) The deep crustal structure of the mafic-ultramafic Seiland Igneous Province of Norway from 3D gravity modelling and geological implications. Geophysical Journal International. vol. 207 (3).
- (2016) Palaeointensity, core thermal conductivity and the unknown age of the inner core. Geophysical Journal International. vol. 205 (2).
- (2015) Magnetic mean-field modelling of solid solutions: Theoretical foundations and application to the hematite-ilmenite system. Geophysical Journal International.
- (2015) 916 Ma Pole for southwestern Baltica: Paleomagnetism of the Bjerkreim Sokndal Layered Intrusion, Rogaland Igneous Complex, southern Norway. Geophysical Journal International. vol. 203 (1).
- (2014) Ferroan Geikielite and Coupled Spinel-Rutile Exsolution from Titanohematite: Interface Characterization and Magnetic Properties. American Mineralogist. vol. 99 (8-9).
- (2014) Chemical and magnetic properties of rapidly cooled metastable ferri-ilmenite solid solutions - IV: The fine structure of self-reversed thermoremanent magnetization. Geophysical Journal International. vol. 196 (3).
- (2014) Anisotropy of magnetic susceptibility versus lattice- and shape-preferred orientation in the Lac Tio hemo-ilmenite ore body (Grenville province, Quebec). Tectonophysics. vol. 629 (C).
- (2014) Experimental evidence for lamellar magnetism in hemo-ilmenite by polarized neutron scattering. Physical Review B. Condensed Matter and Materials Physics. vol. 89 (5).
- (2013) Measuring the Curie temperature. Geochemistry Geophysics Geosystems. vol. 14 (4).
- (2013) Influence of lattice-preferred orientation with respect to magnetizing field on intensity of remanent magnetization in polycrystalline hemo-ilmenite. Geophysical Journal International. vol. 192 (2).
- (2012) Chemical and magnetic properties of rapidly cooled metastable ferri-ilmenite solid solutions: implications for magnetic self-reversal and exchange bias - III. Magnetic interactions in samples produced by Fe-Ti ordering. Geophysical Journal International. vol. 191 (3).
- (2012) Chemical and magnetic properties of rapidly cooled metastable ferri-ilmenite solid solutions: II. Chemical changes during quenching and annealing. Geophysical Journal International. vol. 188 (2).
- (2012) Size and shape dependence of the magnetic ordering temperature in nanoscale magnetic particles. Geophysical Journal International. vol. 191 (3).
- (2012) Paleomagnetism and magnetic mineralogy of Grenville metamorphic and igneous rocks, Adirondack Highlands, USA. Precambrian Research. vol. 212-213.
- (2011) Chemical and magnetic properties of rapidly cooled metastable ferri-ilmenite solid solutions: implications for magnetic self-reversal and exchange bias—I. Fe-Ti order transition in quenched synthetic ilmenite 61. Geophysical Journal International. vol. 186 (3).
- (2010) Geometry of ionic arrangements and magnetic interactions in ordered ferri-ilmenite solid solutions and its effect on low-T magnetic behavior. Geochemistry Geophysics Geosystems. vol. 11 (5).
- (2010) Magnetic clusters in ilmenite-hematite solid solutions. Physical Review B. Condensed Matter and Materials Physics. vol. 81 (22).
- (2010) Spin orientation in a natural Ti-bearing hematite: Evidence for an out-of-plane component. American Mineralogist. vol. 95.
- (2009) High efficiency of natural lamellar remanent magnetisation in single grains of ilmeno-hematite calculated using Mössbauer spectroscopy. Earth and Planetary Science Letters. vol. 288.
- (2009) Crustal Magnetism, Lamellar Magnetism and Rocks That Remember. Elements. vol. 5.
- (2009) Mechanism of exchange bias for isolated nanoparticles embedded in an antiferromagnetic matrix. Physical Review B. Condensed Matter and Materials Physics. vol. 80.
- (2009) Magnetic field microscopy of rock samples using a giant magnetoresistance–based scanning magnetometer. Geochemistry Geophysics Geosystems. vol. 10 (10).
- (2009) The application of Lorentz transmission electron microscopy to the study of lamellar magnetism in hematite-ilmenite. American Mineralogist. vol. 94.
- (2009) Remanent and induced magnetic anomalies over a layered intrusion: Effects from crystal fractionation and magma recharge. Tectonophysics. vol. 478.
- (2008) Exchange bias identifies lamellar magnetism as the origin of the natural remanent magnetization in titanohematite with ilmenite exsolution from Modum, Norway. Earth and Planetary Science Letters. vol. 268.
- (2008) Magnetic properties of anorthosites: A forgotten source for planetary magnetic anomalies?. Geophysical Research Letters. vol. 35 (2).
- (2008) A low-temperature phase diagram for ilmenite-rich compositions in the system Fe2O3-FeTiO3. American Mineralogist. vol. 93.
- (2008) Magnetic petrology of the Devonian Achala Batholith, Argentina: titanohaematite as an indicator of highly oxidized magma during crystallization and cooling. Geophysical Journal International. vol. 175 (3).
- (2007) Magnetic phases in hemo-ilmenite: Insight from low-velocity and high-field Mössbauer spectroscopy. Geophysical Research Letters. vol. 34.
- (2007) Low-temperature exchange coupling between Fe2O3 and FeTiO3: Insight into the mechanism of giant exchange bias in a natural nanoscale intergrowth. Physical Review B. Condensed Matter and Materials Physics. vol. 17.
- (2007) Magnetic exchange bias of more than 1 Tesla in a natural mineral intergrowth. Nature Nanotechnology. vol. 2.
- (2007) Magnetization of exsolution intergrowths of hematite and ilmenite: Mineral chemistry, phase relations, and magnetic properties of hemo-ilmenite ores with micron- to nanometer-scale lamellae from Allard Lake, Quebec. Journal of Geophysical Research (JGR): Solid Earth. vol. 112 (B10).
- (2007) Magnetic properties and potential field modeling of the Peculiar Knob metamorphosed iron formation, South Australia: An analog for the source of the intense Martian magnetic anomalies?. Journal of Geophysical Research (JGR): Solid Earth. vol. 112 (B3).
- (2006) Fe2+/Fe3+ charge ordering in contact layers of lamellar magnetism: Bond valence arguments. American Mineralogist. vol. 91.
- (2006) Crystallographic–magnetic correlations in single-crystal haemo-ilmenite: new evidence for lamellar magnetism. Geophysical Journal International. vol. 165.
- (2004) The relationship between exsolution and magnetic properties in hemo-ilmenite: Insights from Mössbauer spectroscopy with implications for planetary magnetic anomalies. Geophysical Research Letters. vol. 31.
- (2004) Magnetic domain structures and stray fields of individual elongated magnetite grains revealed by magnetic force microscopy (MFM). Physics of the Earth and Planetary Interiors. vol. 141 (2).
- (2004) Effects of nanoscale exsolution in hematite–ilmenite on the acquisition of stable natural remanent magnetization. Earth and Planetary Science Letters. vol. 224.
- (2004) Earth analog for Martian magnetic anomalies: remanence properties of hemo-ilmenite norites in the Bjerkreim-Sokndal intrusion, Rogaland, Norway. Journal of Applied Geophysics. vol. 56 (3).
- (2004) Palaeomagnetism of the Egersund–Ogna anorthosite, Rogaland, Norway, and the position of Fennoscandia in the Late Proterozoic. Geophysical Journal International. vol. 158.
- (2004) What is magnetic in the lower crust?. Earth and Planetary Science Letters. vol. 226.
- (2004) Magnetic anomalies, layered intrusions and Mars. Geophysical Research Letters. vol. 31.
- (2004) Nature and origin of lamellar magnetism in the hematite-ilmenite series. American Mineralogist. vol. 89.
- (2002) Nanoscale haematite–ilmenite lamellae in massive ilmenite rock: an example of ‘lamellar magnetism’ with implications for planetary magnetic anomalies. Geophysical Journal International. vol. 151 (3).
- (2002) Lamellar magnetism in the haematite–ilmenite series as an explanation for strong remanent magnetization. Nature. vol. 418.
- (2001) Effect of fine-scale microstructures in titanohematite on the acquisition and stability of natural remanent magnetization in granulite facies metamorphic rocks, southwest Sweden: Implications for crustal magnetism. Journal of Geophysical Research (JGR): Solid Earth. vol. 106 (B12).
- (2001) Aeromagnetic anomalies, magnetic petrology, and rock magnetism of hemo-ilmenite- and magnetite-rich cumulate rocks from the Sokndal Region, South Rogaland, Norway. American Mineralogist. vol. 86.
- (2001) Minor element chemistry of hemo-ilmenite and magnetite in cumulate rocks from the Sokndal Region, South Rogaland, Norway. American Mineralogist. vol. 86.
- (2000) An overview of titanium deposits in Norway. Bulletin. Norges geologiske undersøkelse (NGU-Bulletin). vol. 436.
- (2000) A closer look at remanence-dominated aeromagnetic anomalies- Rock magnetic properties and magnetic mineralogy of the Russell Belt microcline-sillimanite gneiss, northwest Adirondack Mountains, New York. Journal of Geophysical Research (JGR): Solid Earth. vol. 105 (B7).
- (2000) Palaeomagnetism, rock magnetism and geochemistry of Jurassic dykes and correlative redbeds, Massachusetts, USA. Geophysical Journal International. vol. 143 (1).
- (1996) A Barremian-Aptian (Early Cretaceous) North American paleomagnetic reference pole. Journal of Geophysical Research (JGR): Solid Earth. vol. 101 (B7).
- (1996) North America during the Lower Cretaceous: new palaeomagnetic constraints from intrusions in New England. Geophysical Journal International. vol. 126 (2).
- (1995) Paleomagnetic evidence for a Late Triassic age for transitional tholeiitic to alkalic diabase dikes from central Rhode Island. American Journal of Science. vol. 295 (1).
Part of book/report
- (2011) Remanent Magnetism. Encyclopedia of Solid Earth Geophysics.
Report/dissertation
- (2001) Forekomster med ilmenitt, vanadiumholdig magnetitt og apatitt i norittiske bergarter i Egersundfeltet, Rogaland. 2001. NGU-rapport (2001.014).
Others
- (2020) A portrait of the Bushveld Complex, South Africa: FORC principal component analysis of whole rock and mineral separates. Magnetic Interactions 2020 ; 2020-01-09 - 2020-01-10.
- (2020) Interpretation techniques for crustal magnetic fields in the presence of solar fields, instrument or mission challenges. JpGU-AGU . Japan Geoscience Union and AGU; Chiba Japan (Online 2020). 2020-07-12 - 2020-07-16.
- (2018) Magnetic Field Surveys of Thin Sections. 26th Australasian Exploration Geoscience Conference ; Sydney. 2018-02-18 - 2018-02-21.