Results 1 to 10 of about 34,565 (191)
Frontiers in Microbiology, 2023 Bacteria can facilitate the increase of Mg2+ content in biotic aragonite, but the molecular mechanisms of the incorporation of Mg2+ ion into aragonite facilitated by bacteria are still unclear and the dolomitization of aragonite grains is rarely reported.
Zuozhen Han +18 more
doaj +3 more sources
Optimising a method for aragonite precipitation in simulated biogenic calcification media.
PLoS ONE, 2022 Resolving how factors such as temperature, pH, biomolecules and mineral growth rate influence the geochemistry and structure of biogenic CaCO3, is essential to the effective development of palaeoproxies. Here we optimise a method to precipitate the CaCO3
Celeste Kellock +6 more
doaj +2 more sources
Carsologica Sinica, 2022 The karst geomorphology is widely distributed in central south and southwestern China, especially in western Hunan Province, where speleothems (especially stalagmites) have become one of the most important archives for high-resolution paleoclimatic ...
Jiayan LI +6 more
doaj +1 more source
Polyamines Promote Aragonite Nucleation and Generate Biomimetic Structures
Advanced Science, 2023 Calcium carbonate biomineralization is remarkable for the ability of organisms to produce calcite or aragonite with perfect fidelity, where this is commonly attributed to specific anionic biomacromolecules.
Ouassef Nahi +8 more
doaj +1 more source
Scientific Reports, 2021 Among the CaCO3 polymorphs, aragonite demonstrates a better performance as a filler material in the paper and plastic industries. Despite being ideal from the environmental protection perspective, the production of aragonite particles via CO2 ...
Jiajie Wang +6 more
doaj +1 more source
Analysis of influencing factors on mineral morphology of active speleothem
Carsologica Sinica, 2022 Stalagmites, secondary mineral deposits forming in karst caves, record much paleo-climate and paleo-environment information. In stalagmites, the mineral forms of calcium carbonate are aragonite and calcite. It is considered that the properties of bedrock,
Yangyang HUANG +10 more
doaj +1 more source
The Biology and Evolution of Calcite and Aragonite Mineralization in Octocorallia
Frontiers in Ecology and Evolution, 2021 Octocorallia (class Anthozoa, phylum Cnidaria) is a group of calcifying corals displaying a wide diversity of mineral skeletons. This includes skeletal structures composed of different calcium carbonate polymorphs (aragonite and calcite). This represents
Nicola Conci +4 more
doaj +1 more source
Extensive dissolution of live pteropods in the Southern Ocean [PDF]
, 2012 The carbonate chemistry of the surface ocean is rapidly changing with ocean acidification, a result of human activities. In the upper layers of the Southern Ocean, aragonite—a metastable form of calcium carbonate with rapid dissolution kinetics—may ...
A. Kuzirian +39 more
core +3 more sources
Unexpected Findings in 16th Century Wall Paintings: Identification of Aragonite and Unusual Pigments
Heritage, 2021 Sixteenth century wall paintings were analyzed from a church in an advanced state of decay in the Apennines of central Italy, now a remote area but once located along the salt routes from the Po Valley to the Ligurian Sea. Infrared spectroscopy (FTIR-ATR)
Laura Rampazzi +3 more
doaj +1 more source
Refining the interpretation of lacustrine carbonate isotope records: Implications of a mineralogy-specific Lake Van case study [PDF]
, 2019 Oxygen and carbon isotope (δ18O and δ13C) data from bulk carbonates are widely applied proxies for temperature, the precipitation/evaporation ratio and productivity in lacustrine palaeohydrology and palaeoclimatology. In case of the terminal and alkaline
Immenhauser, Adrian +4 more
core +1 more source