Glendonites throughout the Phanerozoic

Rogov, Mikhail; Ershova, Victoria; Gaina, Carmen; Vereshchagin, Oleg S.; Vasileva, Kseniia; Mikhailova, Kseniia; Krylov, Alexey

doi:10.1016/j.earscirev.2023.104430

Cited by 26 publications

(5 citation statements)

References 197 publications

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“…Nevertheless, the detailed subdivision of this formation can be carried out using bivalve assemblages [9], as they are the most common and diverse macrofossils met across the formation. Bladed glendonites showing gradual size increase upwards from ~0.5 to 30 cm in length are typical for the middle and upper parts of the Tyung Formation throughout the Vilyui River basin [10] and were previously used for geological mapping purposes [8]. There are unfigured records of belemnites from the lower part of the formation [11], and from its top [12]; however, other authors who visited the same sections reported the absence of belemnites in the same strata (Nalnjaeva in [13], p. 142).…”

Section: Geological Settingmentioning

confidence: 93%

A First Record of Lower Jurassic (Toarcian) Coleoid Jaws in Siberia

et al. 2023

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In the present paper, we describe several coleoid jaws discovered in the lower Toarcian black shales, cropping out along the Vilyui River (Yakutia, Russia). This is the first record of a Lower Jurassic coleoid jaw outside Europe and the first report of such a finding from the Mesozoic of Siberia. The described coleoid jaws demonstrate the same mode of preservation and morphology as the coeval jaws previously reported from Europe. Their preservation in Siberia became possible due to the widespread occurrence of black shale facies associated with the early Toarcian oceanic anoxic event (TOAE).

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Section: Geological Settingmentioning

confidence: 93%

A First Record of Lower Jurassic (Toarcian) Coleoid Jaws in Siberia

et al. 2023

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“…This paper builds upon earlier works [13,14,19,20] and presents additional data and descriptions for various locations. The sites investigated are Dutch/German Wadden Sea, Scottish pseudogaylussite, Alaskan Kool Hoot, Russian White Sea Hornlets, and Canadian Fundylite.…”

Section: Samples and Sitesmentioning

confidence: 95%

“…The sites along the Wadden Sea coastline in the Netherlands and Germany are primarily known from historical references and museum collections [13]. The site at Bobeldijk, close to Den Hoorn, the Netherlands (Figure 1b), was briefly rediscovered in 2003, while the others are only mentioned in references [13,14,20,21,26,27]. The Hamburg Mineralogisches Museum holds a unique and extensive collection of samples from original sites, often by the first authors in the 19th century.…”

Section: Samples and Sitesmentioning

confidence: 99%

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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“…Glendonite, a calcite pseudomorph after ikaite (CaCO 3 .6H 2 O), forms during early diagenesis in marine sediments and under relatively low temperatures ranging from-2°C to 10°C. This biomineral has been widely used as a low-temperature indicator to reconstruct paleoclimate ( De Lurio and Frakes, 1999 ; Muramiya et al, 2022 ; Rogov et al, 2023 ). According to a study by Iniesto et al (2017) , DO exhibited a control similar to pH during laboratory based taphonomic experiments on frogs.…”

Section: Concretion Formation Mechanismsmentioning

confidence: 99%

Microbially mediated fossil concretions and their characterization by the latest methodologies: a review

Dhami,

Greenwood,

Poropat

et al. 2023

Front. Microbiol.

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The study of well-preserved organic matter (OM) within mineral concretions has provided key insights into depositional and environmental conditions in deep time. Concretions of varied compositions, including carbonate, phosphate, and iron-based minerals, have been found to host exceptionally preserved fossils. Organic geochemical characterization of concretion-encapsulated OM promises valuable new information of fossil preservation, paleoenvironments, and even direct taxonomic information to further illuminate the evolutionary dynamics of our planet and its biota. Full exploitation of this largely untapped geochemical archive, however, requires a sophisticated understanding of the prevalence, formation controls and OM sequestration properties of mineral concretions. Past research has led to the proposal of different models of concretion formation and OM preservation. Nevertheless, the formation mechanisms and controls on OM preservation in concretions remain poorly understood. Here we provide a detailed review of the main types of concretions and formation pathways with a focus on the role of microbes and their metabolic activities. In addition, we provide a comprehensive account of organic geochemical, and complimentary inorganic geochemical, morphological, microbial and paleontological, analytical methods, including recent advancements, relevant to the characterization of concretions and sequestered OM. The application and outcome of several early organic geochemical studies of concretion-impregnated OM are included to demonstrate how this underexploited geo-biological record can provide new insights into the Earth’s evolutionary record. This paper also attempts to shed light on the current status of this research and major challenges that lie ahead in the further application of geo-paleo-microbial and organic geochemical research of concretions and their host fossils. Recent efforts to bridge the knowledge and communication gaps in this multidisciplinary research area are also discussed, with particular emphasis on research with significance for interpreting the molecular record in extraordinarily preserved fossils.

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Glendonites throughout the Phanerozoic

Cited by 26 publications

References 197 publications

A First Record of Lower Jurassic (Toarcian) Coleoid Jaws in Siberia

A First Record of Lower Jurassic (Toarcian) Coleoid Jaws in Siberia

Transgression Related Holocene Coastal Glendonites from Historic Sites

Microbially mediated fossil concretions and their characterization by the latest methodologies: a review

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