Glendonite concretion formation due to dead organism decomposition
Glendonite is generally accepted as a calcite pseudomorph after ikaite (CaCO 3· 6H 2 O)
and is commonly preserved in spherical carbonate concretions known as glendonite …
and is commonly preserved in spherical carbonate concretions known as glendonite …
Marine diagenesis of ikaite: implications from the isotopic and geochemical composition of glendonites and host concretions (Palaeogene–Neogene sediments …
K Vasileva, O Vereshchagin, V Ershova… - …, 2021 - Wiley Online Library
Glendonites represent pseudomorphs after calcium carbonate hexahydrate (ikaite) and can
be used as indicators of past cold climates, because ikaite only naturally occurs in cold …
be used as indicators of past cold climates, because ikaite only naturally occurs in cold …
[HTML][HTML] Ikaite nucleation at 35 C challenges the use of glendonite as a paleotemperature indicator
Glendonites have been found worldwide in marine sediments from the Neoproterozoic Era
to the Quaternary Period. The precursor of glendonite, ikaite (CaCO3· 6H2O), is metastable …
to the Quaternary Period. The precursor of glendonite, ikaite (CaCO3· 6H2O), is metastable …
[HTML][HTML] Growth mechanisms and environmental implications of carbonate concretions from the~ 1.4 Ga Xiamaling Formation, North China
Carbonate concretions provide unique records of ancient biogeochemical processes in
marine sediments, and have the potential to reflect seawater chemistry indirectly. In fine …
marine sediments, and have the potential to reflect seawater chemistry indirectly. In fine …
Greigite from carbonate concretions of the Ediacaran Doushantuo Formation in South China and its environmental implications
Greigite (Fe3S4) is a ferrimagnetic iron sulfide that commonly forms as a precursor of pyrite
in anoxic environments where the supply of reactive Fe outpaces that of sulfide (H2S and …
in anoxic environments where the supply of reactive Fe outpaces that of sulfide (H2S and …
Rapid formation of gigantic spherical dolomite concretion in marine sediments
Spherical carbonate concretions are present in sedimentary strata of varying geological
ages worldwide. Recent studies reveal that calcium carbonate concretions form very rapidly …
ages worldwide. Recent studies reveal that calcium carbonate concretions form very rapidly …
Ikaite abundance controlled by porewater phosphorus level: Potential links to dust and productivity
Glendonites are pseudomorphs of the mineral ikaite (CaCO3· 6H2O) after loss of hydration
water and occur in distinctive euhedral crystalline forms, sometimes clustered as rosettes of …
water and occur in distinctive euhedral crystalline forms, sometimes clustered as rosettes of …
[HTML][HTML] Database of global glendonite and ikaite records throughout the Phanerozoic
M Rogov, V Ershova, O Vereshchagin… - Earth System …, 2020 - essd.copernicus.org
This database of Phanerozoic occurrences and isotopic characteristics of metastable cold-
water calcium carbonate hexahydrate (ikaite; CaCO 3· 6H 2 O) and their associated …
water calcium carbonate hexahydrate (ikaite; CaCO 3· 6H 2 O) and their associated …
Glendonites throughout the Phanerozoic
Ikaite is a metastable calcium carbonate hexahydrate (CaCO3· 6H2O), which naturally
occurs in environments characterized by temperatures of− 2 to+ 7° C. It is therefore …
occurs in environments characterized by temperatures of− 2 to+ 7° C. It is therefore …
A review and synthesis of glendonites (pseudomorphs after ikaite) with new data: assessing applicability as recorders of ancient coldwater conditions
BW Selleck, PF Carr, BG Jones - Journal of …, 2007 - pubs.geoscienceworld.org
Calcite pseudomorphs after ikaite (glendonite) are associated with coldwater depositional
systems, including glaciomarine and deepwater settings, as dictated by the limited stability …
systems, including glaciomarine and deepwater settings, as dictated by the limited stability …