On the consumption of REE-rich carbonate earthy substances by ungulates on the western shore of Lake Baikal; Environmental Geochemistry and Health; Vol. 48

On the consumption of REE-rich carbonate earthy substances by ungulates on the western shore of Lake Baikal; Environmental Geochemistry and Health; Vol. 48

Bibliographic Details
Parent link:Environmental Geochemistry and Health.— .— Dordrecht: Springer Nature B.V.
Vol. 48.— 2026.— Article number 556, 31 p.
Corporate Author: Национальный исследовательский Томский политехнический университет Инженерная школа природных ресурсов
Other Authors: Panichev A. M. Aleksandr Mikhaylovich, Baranovskaya N. V. Nataliya Vladimirovna, Seryodkin I. V. Ivan Vladimirovich, Chekryzhov I. Yu. Igor Yurjevich, Soktoev B. R. Bulat Rinchinovich, Vakh E. A. Elena Aleksandrovna, Ivanov V. V. Vladimir Viktorovich, Desyatova T. V. Tatjyana Viktorovna, Lutsenko T. N. Tatjyana Nikolaevna, Popov N. Yu. Nikita Yurjevich, Ostapenko D. S. Dmitry Sergeevich, Elovsky E. V. Evgeny Vasiljevich, Makarevich R. A. Raisa Alekseevna, Vetoshkina A. V. Alena Vladimirovna, Peregudina E. V. Elena Vladimirovna
Summary:Title screen
Geological and hydrobiogeochemical studies were carried out in the valleys of the Sredniye Homuty and Hargino streams on the western shore of Lake Baikal in order to find the reason for the active consumption of carbonate and clay-sandy earths by wild ungulates there, which were found to be enriched with forms of rare earth elements (REE) that are easily extracted in a slightly acidic (HCl, pH-2) environment. The studies revealed that the prevalent mountain-taiga landscapes in the study areas, which were formed mainly on carbonate rocks, were characterized by low Na content, an abnormal ratio in feed Ca:Mg:P = 3:1:1 with a norm of 0.6:1:1, as well as extremely low REE content (average with Y and Sc = 0.25 ± 0.11 mg/kg). The average Na content in dry grass (Carex sp., N = 20) in the study area was 0.0431 ± 0.012 g/kg. On average, the amount of Na available to animals in carbonate kudurits were found to be comparable to its content in local dry vegetation. However, the average amount of REE extracted from kudurits (13.461 mg/kg) under abomasum conditions is 50 times higher than in plant feeds. The combination of our comprehensive analytical studies and a review of the literature on the role of REE in the body of mammals suggest that geophagy may be driven by the need to acquire certain trace elements, primarily rare earth elements, which appear to be closely associated with the neuroimmunoendocrine system
Текстовый файл
AM_Agreement
Language:English
Published: 2026
Subjects:
Geophagy
High-carbonate metamorphic rocks
Rare earth elements
Mineral licks
Neuroimmunoendocrine system
электронный ресурс
труды учёных ТПУ
Online Access:https://doi.org/10.1007/s10653-026-03427-x
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=687995

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