Universität zu Köln

Scheidt, S. ORCID: 0000-0002-9370-2700, Ólafsdóttir, S. ORCID: 0000-0003-2057-0978, Brendryen, J., Nowaczyk, N. R. ORCID: 0000-0002-3362-0578, Lenz, M. M., Svendsen, J. I. ORCID: 0000-0002-0570-466X and Haflidason, H. (2025). New Insights Into the Proposed Geomagnetic Excursion Hilina Pali From High‐Resolution Lake Sediment Cores From the Polar Ural Mountains, Arctic Russia. Journal of Geophysical Research: Solid Earth, 130 (11). pp. 1-22. Wiley. ISSN 2169-9313

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Abstract

[Artikel-Nr.: e2025JB032561] This study presents paleomagnetic records from three 24 m‐long sediment cores from the neighboring lakes Bolshoye Shchuch'ye and Maloye Shchuch'ye, located about 10 km apart in the Polar Urals in northern Russia. The age model, based on radiocarbon dating and varve counting, shows that the sediment sequences reach back up to about 23.5 ka cal. BP. Mineral magnetic analyses indicate that the upper sedimentary sequence is not suitable for paleomagnetic analyses. Below about 6.7 m the paleosecular variation and relative paleointensity in the magnetic field in the period 23.6–14.8 ka cal. BP is reconstructed. The magnetostratigraphic results show very similar pattern in both lakes including a directional anomaly previously called the Bolshoye Shchuchye Event. This event is dated to the period 20.2–19.1 ka cal. BP accompanied with a low in relative paleointensity. Comparisons with sediment records from other regions suggest that this paleomagnetic feature represents the proposed Hilina Pali geomagnetic excursion, which is documented in unprecedented high resolution in the studied lakes. The reconstructed path of the virtual geomagnetic field during this event shows that the pole positions remain at latitudes higher than 55°N while describing a clockwise loop. According to varve counts the inclination deviation and virtual geomagnetic pole latitude deviation associated with Hilina Pali lasted 1135 ± 35 years and 1294 ± 44 years, respectively, in northern Russia.

Item Type:	Article
Creators:	Creators Email ORCID ORCID Put Code Scheidt, S. UNSPECIFIED https://orcid.org/0000-0002-9370-2700 UNSPECIFIED Ólafsdóttir, S. UNSPECIFIED https://orcid.org/0000-0003-2057-0978 UNSPECIFIED Brendryen, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Nowaczyk, N. R. UNSPECIFIED https://orcid.org/0000-0002-3362-0578 UNSPECIFIED Lenz, M. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Svendsen, J. I. UNSPECIFIED https://orcid.org/0000-0002-0570-466X UNSPECIFIED Haflidason, H. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-806251
Identification Number:	10.1029/2025JB032561
Journal or Publication Title:	Journal of Geophysical Research: Solid Earth
Volume:	130
Number:	11
Page Range:	pp. 1-22
Number of Pages:	22
Date:	November 2025
Publisher:	Wiley
ISSN:	2169-9313
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Geosciences > Institute of Geology and Mineralog
Subjects:	Earth sciences Geography and travel
Uncontrolled Keywords:	Keywords Language Hilina Pali ; geomagnetic excursion ; magnetic secular variation ; relative paleointensity ; lake sediments ; Russian Arctic English
['eprint_fieldname_oa_funders' not defined]:	Publikationsfonds UzK
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/80625