The Iceland Palaeomagnetism Database (ICEPMAG v1.0)

• Main Author: Justin A. D. Tonti-Filippini 1989-
• Other Authors: Háskóli Íslands
• Format: Thesis
• Language: English
• Published: 2018
• Subjects: Jarðeðlisfræði; Jarðlög; Segulsvið; Segulmælingar; Jarðsaga; Rannsóknir; Iceland
• Online Access: http://hdl.handle.net/1946/31863

Iceland's lavas preserve a unique record of Earth's magnetic field for the past sixteen million years, and were used by early pioneers of palaeomagnetism to test several concepts which became crucial to modern geoscience. Iceland represents one of very few high latitude (>60°) locations where long sequences of lavas suitable for palaeomagnetic research are accessible. Since the early 1950s, research in Iceland has produced a large collection of palaeomagnetic data which has not previously been collected into a comprehensive database. ICEPMAG (http://icepmag.org/) compiles palaeomagnetic data published in journal articles, academic theses and other databases from over 9,200 sampling sites in Iceland - one of the world's largest collections of palaeomagnetic data from a single location. ICEPMAG was constructed utilising the principles and structure of GEOMAGIA50, and maintains the vocabulary of MagIC to allow easy transfer to the global palaeomagnetic database. The ICEPMAG database can be searched through a publicly available website which provides a range of customisable constraints, including rock and sample/specimen types, age constraints, dating methods, palaeointensity methods, geographic constraints (by region, location and between specified coordinates), authors and years of publication, as well as statistical constraints such as directional polarity, alpha95 and precision parameter, k. Query results are presented in a results table, with options to produce interactive maps of site locations, VGP plots and downloadable spreadsheets. All the entries in ICEPMAG contain palaeointensity or palaeodirectional data: 8649 contain direction only, 218 intensity only, and 337 both direction and intensity. ICEPMAG will contribute an additional 50 studies and 6,570 sites to the global MagIC database. Íslensk hraunlög varðveita einstaka sögu segulsviðs jarðar síðustu sextán milljón ár, sem var notuð af frumkvöðlum fornsegulsviðsfræða til prófunar á tilgátum sem urðu mikilvægar fyrir nútíma jarðvísindi. Ísland er ...