New model for seasonal ikaite precipitation: Evidence from White Sea glendonites

Vasileva, Kseniia; Zaretskaya, N. E.; Ershova, Victoria; Rogov, Mikhail; Stockli, Lisa D.; Stöckli, Daniel F.; Khaitov, Vadim; Maximov, F. E.; Chernyshova, Irina A.; Soloshenko, N. G.; Frishman, Nikolay; Panikorovsky, Taras L.; Vereshchagin, Oleg S.

doi:10.1016/j.margeo.2022.106820

Cited by 5 publications

(6 citation statements)

References 46 publications

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“…Fundy underwent subsidence and marine transgression. If our Olenitsa 14 C dates are incorrect (too old), the Th/U age of 4100 BP is more consistent with other data; this is illustrated by the circle-to-circle arrow[23].…”

supporting

confidence: 74%

“…The most extensively studied site is Olenitsa on the Kola Peninsula in Russia (Figure 1e), which has been well described in publications [21][22][23]. Abundant samples from this site are available for analysis.…”

Section: Samples and Sitesmentioning

confidence: 99%

“…Pseudomorphs occur on the remote Terski coast, where the Olenitsa River enters the White Sea [21][22][23], and marine Holocene deposits are widespread. Figure 1 shows a model where Holocene sediments from older deposits underlying the moraine are covered with moraine and Holocene marine deposits, followed by alluvial sands and pebble beds.…”

Section: Olenitsa White Sea Russiamentioning

confidence: 99%

“…In 2022, Vasileva published a high precision Th/U age placing the glendonite pseudomorphs formed around 4.1 ± 0.4 cal. Ka BP [23]. To interpret the discrepancies in measured dates, we examined the regional palaeogeography.…”

Section: Olenitsa White Sea Russiamentioning

confidence: 99%

“…This would account for dropstones, mussels in life position, and other bioclast debris. The White Sea region shows that the Atlantic molluscs overgrown by glendonites are a particular species that inhabited the White Sea during the Atlantic climate optimum (6300-6900 calibrated years BP) [23], which means that the glendonites are younger than at least 6900 calibrated years BP. It is puzzling that ages obtained from 14 C do not correspond with geological data.…”

Section: Olenitsa White Sea Russiamentioning

confidence: 99%

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Transgression Related Holocene Coastal Glendonites from Historic Sites

Schultz,

Huggett,

van de Schootbrugge

et al. 2023

Minerals

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This study examines the occurrence of glendonite along coastlines since 1825, which have been previously referred to under different names such as Pseudogaylussite, Fundylite, and Kool Hoot across eleven sites. By utilising element ratios and 14C radiometric dating techniques, we establish a more accurate chronology for these varied sites ranging from 10 to 1 thousand years before the present (Ky BP). Sites include tidal flats, coastal barrier islands, and Wadden Sea environments. While some sites still exist, others are only known through publications and museum collections. Our research expands upon previous findings by presenting petrographic evidence that correlates with glendonite formation. Through the examination of the Olenitsa site on the Kola Peninsula, we demonstrate that marine bioclasts enclosed within concretions surrounding glendonites provide temporal context, suggesting that these outcrops were formed during a single event under changing conditions. Notably, certain sediment structures at selected sites indicate the occurrence of cold-water ice-raft storm events and the presence of drop stones. Furthermore, our paper explores the association of historic coastal sites with the formation of ikaite, highlighting the limitations of relying solely on geochemistry and isotopic analysis for interpretation. Intriguingly, we observe that pseudomorphs are abundant in specific areas but absent in adjacent regions with similar environmental, physical, and chemical conditions. No apparent connection is found between volcanic dust cloud-induced cold spells and glendonite. The distribution of coastal glendonites is more likely related to periods of climatic cooling through other means. We show that radiometric dating with 14C provides an indication of age, but the results can be erroneous due to the inclusion of older carbon sources in the analysis. The oldest locations discussed in this study are Kool Hoot (Alaska) and the river Clyde (Scotland), and the youngest glendonites discussed are from the Bay of Fundy in Canada. Occurrences from the Wadden Sea are intermediate in age and sit between the other two groups. The age of the Olenitsa site on the Russian Kola Peninsula is uncertain and still debated. We show that measuring the ratio of Mg/Ca can indicate how much the recrystallised ikaite preserved as calcite is influenced by diagenetic pore waters.

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supporting

confidence: 74%

Section: Samples and Sitesmentioning

confidence: 99%

Section: Olenitsa White Sea Russiamentioning

confidence: 99%

Section: Olenitsa White Sea Russiamentioning

confidence: 99%

Section: Olenitsa White Sea Russiamentioning

confidence: 99%

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