Vaalbara Palaeomagnetism
نویسندگان
چکیده
منابع مشابه
Advancing Precambrian palaeomagnetism with the PALEOMAGIA and PINT(QPI) databases
State-of-the-art measurements of the direction and intensity of Earth's ancient magnetic field have made important contributions to our understanding of the geology and palaeogeography of Precambrian Earth. The PALEOMAGIA and PINT(QPI) databases provide thorough public collections of important palaeomagnetic data of this kind. They comprise more than 4,100 observations in total and have been es...
متن کاملPalaeomagnetism of the Bay an Gol Formation , western Mongolia
Oriented samples of the Lov.'er Cambrian Sayan Go! Formation from Salaany Go!, Mongolia, were collected at roughly 5 m stratigraphic intervals for palaeomagnetic analysis. Progressive alternatingfield and thermal demagnetization isolated two magnetic components: a present-field overprint, typically removed by 10 mT fields and -200 °C heating: and a high-coercivity, high-unblocking-temperature (...
متن کاملPalaeomagnetism of the Ordovician dolerites of the Crozon Peninsula (France)
In order to obtain a Lower Palaeozoic pole for the Armorican Massif and to test the origin of the Ibero-Armorican arc, the Ordovician dolerites of the Crozon peninsula have been palaeomagnetically studied. The samples show a multicomponent magnetization which has been revealed by AF and thermal demagnetization and thoroughly investigated with rock magnetic experiments, polished section examinat...
متن کاملThe use of palaeomagnetism and rock magnetism to understand volcanic processes: introduction
This Special Publication provides a snapshot of our understanding of volcanic processes through the use of palaeomagnetic and rock magnetic techniques. Here, we provide a context for the book, placing individual chapters within the milieu of previous work, including some magnetic techniques that were not used in the particular studies described herein. Thermoremanent magnetization is a powerful...
متن کاملPalaeomagnetism of the AND-1B Core, ANDRILL McMurdo Ice Shelf Project, Antarctica
Preliminary palaeomagnetic data are presented for the AND-1B drill core. A total of 1309 samples were collected from the drill core immediately following recovery and splitting. Natural remanent magnetisation (NRM) and bulk magnetic susceptibility data were determined for all samples using a Molspin spinner magnetometer and Bartington Instruments susceptibility bridge, respectively, immediately...
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ژورنال
عنوان ژورنال: Canadian Journal of Earth Sciences
سال: 2019
ISSN: 0008-4077,1480-3313
DOI: 10.1139/cjes-2018-0081