Browsing NTNU Open by Author "ter Maat, Geertje"
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Data descriptor: A chemical, crystallographic and magnetic characterisation of individual iron-oxide grains in Hawaiian lavas
ter Maat, Geertje; Pennock, Gillian M; De Groot, Lennart V. (Journal article; Peer reviewed, 2018)Our knowledge on the behaviour of the geomagnetic field through time critically depends on how information of the past state of the field is recorded by, and stored in iron-bearing minerals such as magnetite. For small, ... -
Magnetic Mineralogy and Petrophysical Properties of Ultramafic Rocks: Consequences for Crustal Magnetism
ter Maat, Geertje; McEnroe, Suzanne; Church, Nathan Stewart; B. Larsen, Rune (Journal article; Peer reviewed, 2019)Magnetic properties from the Reinfjord Ultramafic Complex, in northern Norway, which formed as part of a deep magmatic conduit system, have been investigated to determine the magnetic signature of ultramafic rocks now ... -
Mapping magnetic sources at the millimeter to micrometer scale in dunite and serpentinite by high-resolution magnetic microscopy
Pastore, Zeudia; McEnroe, Suzanne; ter Maat, Geertje; Oda, Hirokuni; Church, Nathan Stewart; Fumagalli, Patrizia (Journal article; Peer reviewed, 2018)Rock samples can have wide range of magnetic properties depending on composition, amount of ferromagnetic minerals, grain sizes and microstructures. Here, we used scanning magnetic microscopy, a highly sensitive and ... -
Portrait of a giant deep-seated magmatic conduit system: The Seiland Igneous Province
B. Larsen, Rune; Grant, Thomas; Sørensen, Bjørn Eske; Tegner, Christian; McEnroe, Suzanne; Pastore, Zeudia; Fichler, Christine; Nikolaisen, Even; Grannes, Kim Rune Bragstad; Church, Nathan Stewart; ter Maat, Geertje; Michels, Alexander (Journal article; Peer reviewed, 2018)The Seiland Igneous Province (SIP), Northern Norway, contains > 5000 km2 of mafic and ultramafic intrusions with minor alkaline, carbonatite and felsic rocks that were intruded into the lower continental crust at a depth ...