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Curriculum vitae

Description of research and teaching

Themes: Precambrian geosciences, including geomagnetism, paleomagnetism and supercontinents, field reversals, archeomagnetism, Quaternary palemagnetism, rock magnetism, impact craters and meteorite petrophysics, ultrasonics and environmental magnetism.

Motivation: Reconstructions of continents and their building blocks during the Precambrian are critical in understanding the evolution of planet Earth. They provide also tectonic context for major ore deposits, the tracing of metallogenic belts between blocks, and identifying new prospective regions for mineral deposits of a wide variety of types. They are equally important to understanding the full context of sedimentary basins and their evolution.

Unfortunately, the state of understanding of pre-Pangea reconstructions and their specific paleogeography is tentative at best. There is good evidence, based for instance on the appearance of coeval orogenic belts, that there have been several Precambrian supercontinents such as the Late Archean Kenorland, the late Paleoproterozoic Hudsonland and the Neoproterozoic Rodinia (Pesonen et al. 2012)

Locations: Lake Superior, Arizona, Africa, China, North Europe and India

Specialities: Geomagnetism, paleomagnetism, rock magnetism, petrophysics, continental reconstructions.

Methods: spherical harmonics of the magnetic field; paleo and rock magnetic methods, various modelling techniques.

Instruments: SQUID magnetometer, vibrating sample magnetometer (VSM), KLY-3 kappabridge, Risto-5 petrophysics workstation (magnetic susceptibility, natural remanent magnetization, porosity and density); Paleomagnetic measurements using alternating field (AF) and thermal demagnetization techniques and rock magnetic (low and high temperature susceptibility and magnetic hysteresis) measurements

Research software and modeling: Tubefind, MAVIS (vector subtraction and great circle analysis of paleomagnetic data), IAPD200 (Fisher statistics, bedding correction and tilt test of paleomagnetic data) and Cureval (handling low and high temperature susceptibility data)

Teaching: Solid  Earth Geophysics, planetary geophysics, geophysics field course, introduction to Geophysics, etc.

 

 

Education information

Dipl. Eng(MSc) 1970, MSc 1973, PhD 1978: professor since 2001

Keywords

  • 114 Physical sciences
  • paleomagnetism
  • tectonics
  • rock magnetism
  • supercontinents
  • Precambrian geosciences

International and National Collaboration Publications and projects within past five years.

Publications 1970 2019

Latitude dependence of geomagnetic paleosecular variation and its relation to the frequency of magnetic reversals: Observations from the Cretaceous and Jurassic

Doubrovine, P. V., Veikkolainen, T., Pesonen, L. J., Piispa, E., Ots, S., Smirnov, A. V., Kulakov, E. V. & Biggin, A. J., Mar 2019, In : Geochemistry, geophysics, geosystems G³.. 20, 3, p. 1240-1279 40 p.

Research output: Contribution to journalArticleScientificpeer-review

Magnetic Nanoparticles in Human Cervical Skin

Murros, K., Wasiljeff, J., Macías-Sánchez, E., Faivre, D., Soinne, L., Valtonen, J., Pohja, M., Saari, P., Pesonen, L. J. & Salminen, J. M., 4 Jun 2019, In : Frontiers in Medicine. 6, 10 p., 123.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Discrimination of Holocene tephra units in Lake Van using mineral magnetic analysis

Makaroğlu, Ö., Çağatay, M. N., Nowaczyk, N. R., Pesonen, L. J. & Orbay, N., 30 Aug 2018, In : Quaternary International. 486, p. 44-56 13 p.

Research output: Contribution to journalArticleScientificpeer-review

Geodynamically consistent inferences on the uniform sampling of Earth's paleomagnetic inclinations

Rolf, T. & Pesonen, L. J., Nov 2018, In : Gondwana Research. 63, p. 1-14 14 p.

Research output: Contribution to journalArticleScientificpeer-review

Paleomagnetism and Geochemistry of similar to 1144-Ma Lamprophyre Dikes, Northwestern Ontario: Implications for the North American Polar Wander and Plate Velocities

Piispa, E. J., Smirnov, A. V., Pesonen, L. J. & Mitchell, R. H., Aug 2018, In : Journal of Geophysical Research : Solid Earth. 123, 8, p. 6195-6214 20 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Activities 2000 2012

"Supercontinent Symposium 2012" (External organisation)

Lauri Pesonen (Chair)
22 Sep 201229 Sep 2012

Activity: Membership typesMembership or other role in national/international committee, council, board

Recieved The Finnish Cultural Foundation scholarship for “Precambrain supercontinent Symposium, 10000€.

Lauri Pesonen (Participant)
2011

Activity: Other activity typesTypes for other activities - Other

Holocene paleoenvironmental records of Lake Van (eastern Turkey) from mineral magnetic analysis.

Lauri Pesonen (Participant)
2011

Activity: Other activity typesTypes for other activities - Other