Bjarne Almqvist
Senior Lecturer/Associate Professor at Department of Earth Sciences; Geophysics
- Telephone:
- +46 18 471 35 70
- E-mail:
- Bjarne.Almqvist@geo.uu.se
- Visiting address:
- Geocentrum, Villavägen 16
752 36 Uppsala - Postal address:
- Villavägen 16
752 36 UPPSALA
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Short presentation
My research focuses on the dynamics of continental crust and its physical properties. I use a mix of field work, laboratory experiments and modelling, with target to better understand the deformtion of crust during tectonic events (i.e., orogeny) and crustal mechanics, and mass transport throughout the crust.
Biography
Since May 2013, Researcher, Department of Earth Sciences, Uppsala University.
2010 – 2013, Post-doctoral fellow, Institute of Geology, ETHZ
2010, D.Sc. Degree, ETH-Zürich, Institute of Geophysics
2006, M.Sc. Degree, Lakehead University, Dept. of Geology
2003, H.B.Sc. Degree, Lakehead University, Dept. of Anthropology
Publications
Recent publications
- Brittle basement deformation during the Caledonian Orogeny observed by K-Ar geochronology of illite-bearing fault gouge in west-central Sweden (2023)
- Rapid hydroclimate fluctuation in eastern China coastal plain restrain Neolithic cultures development: A mineral magnetic study (2023)
- Magnetic fabric analyses of basin inversion (2023)
- Magnetic fabric analyses of basin inversion (2023)
- Elastic Wave Propagation in a Stainless-Steel Standard and Verification of a COMSOL Multiphysics Numerical Elastic Wave Toolbox (2022)
All publications
Articles
- Brittle basement deformation during the Caledonian Orogeny observed by K-Ar geochronology of illite-bearing fault gouge in west-central Sweden (2023)
- Rapid hydroclimate fluctuation in eastern China coastal plain restrain Neolithic cultures development: A mineral magnetic study (2023)
- Magnetic fabric analyses of basin inversion (2023)
- Magnetic fabric analyses of basin inversion (2023)
- Elastic Wave Propagation in a Stainless-Steel Standard and Verification of a COMSOL Multiphysics Numerical Elastic Wave Toolbox (2022)
- Large-scale, flat-lying mafic intrusions in the Baltican crust and their influence on basement deformation during the Caledonian orogeny (2022)
- COSC-2 – drilling the basal décollement and underlying margin of palaeocontinent Baltica in the Paleozoic Caledonide Orogen of Scandinavia (2022)
- Editorial for Special Issue “Mantle Strain Localization—How Minerals Deform at Deep Plate Interfaces” (2022)
- Magnetic fabric signature within a thrust imbricate (2022)
- Seismic anisotropy of mid crustal orogenic nappes and their bounding structures (2021)
- Pressure, temperature and lithological dependence of seismic and magnetic susceptibility anisotropy in amphibolites and gneisses from the central Scandinavian Caledonides (2021)
- Core‐log‐seismic integration in metamorphic rocks and its implication for the regional geology (2021)
- Palaeoenvironmental implications from Lower Volga loess - Joint magnetic fabric and multi-proxy analyses (2021)
- Enviromagnetic study of Late Quaternary environmental evolution in Lower Volga loess sequences, Russia (2021)
- Decrypting Magnetic Fabrics (AMS, AARM, AIRM) Through the Analysis of Mineral Shape Fabrics and Distribution Anisotropy (2021)
- Paleomagnetic studies of rapakivi complexes in the Fennoscandian shield – Implications to the origin of Proterozoic massif-type anorthosite magmatism (2021)
- Influence of décollement friction on anisotropy of magnetic susceptibility in a fold-and-thrust belt model (2021)
- Crystal rotations and alignment in spatially varying magma flows (2021)
- Magnetic properties of pseudotachylytes from western Jämtland, central Swedish Caledonides (2020)
- Brittle deformation during eclogitization of early Paleozoic blueschist (2020)
- Magnetic susceptibility parameters as proxies for desert sediment provenance (2020)
- 3D rock fabric analysis using micro-tomography (2020)
- The Arctic Ocean Manganese Cycle, an Overlooked Mechanism in the Anomalous Palaeomagnetic Sedimentary Record (2020)
- Identification of gas inflow zones in the COSC-1 borehole (Jämtland, central Sweden) by drilling mud gas monitoring, downhole geophysical logging and drill core analysis (2020)
- Magnetic characterisation of magnetite and hematite from the Blötberget apatite-iron-oxide deposits (Bergslagen), south-central Sweden (2019)
- Progressive growth of the Cerro Bayo cryptodome, Chachahuén volcano, Argentina (2019)
- Pressure-induced magnetovolume effect in CoCrFeAl high-entropy alloy (2019)
- Magnetic fabric development in the Lower Seve thrust from the COSC-1 drilling, Swedish Caledonides (2019)
- Coring induced sediment fabrics at IODP Expedition 347 Sites M0061 and M0062 identified by anisotropy of magnetic susceptibility (AMS) (2019)
- Late Pleistocene chronology of sediments from the Yermak Plateau and uncertainty in dating based on geomagnetic excursions (2019)
- Bulk strain in orogenic wedges based on insights from magnetic fabrics in sandbox models (2018)
- Metamorphic zonation by out‐of‐sequence thrusting at back‐stepping subduction zones: (2018)
- Initial surface failure and wear of cemented carbides in sliding contact with different rock types (2018)
- Magnetic mineralogy and rock magnetic properties of silicate and carbonatite rocks from Oldoinyo Lengai volcano (Tanzania) (2018)
- Syn-Emplacement Fracturing in the Sandfell Laccolith, Eastern Iceland (2018)
- Seismic properties and anisotropy of the continental crust (2017)
- Seismic anisotropy from compositional banding in granulites from the deep magmatic arc of Fiordland, New Zealand (2017)
- Image log analysis of in-situ stress orientation, breakout growth, and natural geologic structures to 2.5 km depth in central Scandinavian Caledonides (2017)
- Magma transport in sheet intrusions of the Alnö carbonatite complex, central Sweden (2016)
- The Lake Natron Footprint Tuff (northern Tanzania) (2016)
- Determining the timing of formation of the Rawil Depression in the Helvetic Alps with the use of paleomagnetic and structural methods (2016)
- 3D reflection seismic imaging at the 2.5 km deep COSC-1 scientific borehole, central Scandinavian Caledonides (2016)
- Seismic anisotropy in mid to lower orogenic crust (2016)
- 3D magnetotelluric modelling of the Alnö alkaline and carbonatite ring complex, central Sweden (2016)
- Petrofabric development during experimental partial melting and recrystallization of a mica-schist analogue (2015)
- Ultrasonic velocity drops and anisotropy reduction in mica-schist analogues due to melting with implications for seismic imaging of continental crust (2015)
- The role of stress on chemical compaction of illite shale powder (2015)
- Texture and diagenesis of Ordovician shale from the Canning Basin, Western Australia (2015)
- COSC-1 - drilling of a subduction-related allochthon in the Palaeozoic Caledonide orogen of Scandinavia (2015)
- Mechanics, microstructure and AMS evolution of a synthetic porphyritic calcite aggregate deformed in torsion (2015)
- Methods and applications of magnetic anisotropy (2014)
- The formation of the Namib Sand Sea inferred from the spatial pattern of magnetic rock fragments (2014)
- The Ronda Peridotite (Spain): a natural template for seismic anisotropy in subduction wedges (2014)
- Numerical support of laboratory experiments (2014)
- Seismic properties of the Kohistan oceanic arc root (2013)
- Seismic anisotropy in the Morcles nappe shear zone (2013)
- Decoupling of paramagnetic and ferrimagnetic AMS development during the experimental chemical compaction of illite shale powder (2013)
- Synchrotron-based X-ray tomographic microscopy for rock physics investigations (2013)
- Internal flow structures in columnar jointed basalt from Hrepphólar, Iceland: II. Magnetic anisotropy and rock magnetic properties (2012)
- Anisotropy of magnetic susceptibility (AMS) and diamagnetic fabrics in the Durness Limestone, NW Scotland (2012)
- Unraveling magnetic fabrics (2012)
- Digital rock physics: numerical prediction of pressure-dependent ultrasonic velocities using micro-CT imaging (2012)
- Magnetic anisotropy reveals Neogene tectonic overprint in higly strained carbonate mylonites from the Morcles nappe, Switzerland (2011)
- Application of differential effective medium, magnetic pore fabric analysis, and X-ray microtomography to calculate elastic properties of porous and anisotropic rock aggregates (2011)
- Melt migration in basalt columns driven by crystallization-induced pressure gradients (2011)
- Elastic properties of anisotropic synthetic calcite-muscovite aggregates (2010)
- Magnetic susceptibility as a tool to study deformed calcite with variable impurity content (2010)
- Magnetic fabrics of the Morcles nappe complex (2009)
- Correcting distorted paleosecular variation in late glacial lacustrine clay (2008)
- Installation age of limestone masonry determined from its viscous remagnetization (2006)
- Specimen size and improved precision with the Molspin spinner magnetometer (2006)
- Progressive growth of the Cerro Bayo cryptodome, Chachahuén volcano, Argentina – implications for viscous magma emplacement
- Palaeopca, a Tool to Unlock the full Potential of Principal Component Analysis in Palaeomagnetism
- Post-depositional diagenesis in Arctic Ocean sediments and its implications for the palaeomagnetic record
Conferences
- Numerical, predictive and experimental study on elastic wave propagation in crystalline rocks (2021)
- Joint pressure and temperature effects on seismic properties of gneisses and amphibolite (2021)
- A Numerical Toolbox to Calculate the Seismic Properties of Micro Sized Isotropic and Anisotropic Minerals (2020)
- Growth stages of cryptodomes: Examples from Iceland and Argentina (2019)
- Magma Deformation During Laccolith Emplacement: Examples From Iceland And Argentina (2018)
- Syn-emplacement fracturing in the Sandfell laccolith, eastern Iceland (2018)
- Insights into cryptodome emplacement from the Sandfell laccolith, eastern Iceland – implications for seismic and geodetic monitoring (2017)
Reports
