Results 31 to 40 of about 34,613 (225)

Modeling the marine aragonite cycle: changes under rising carbon dioxide and its role in shallow water CaCO₃ dissolution [PDF]

Biogeosciences, 2008
The marine aragonite cycle has been included in the global biogeochemical model PISCES to study the role of aragonite in shallow water CaCO3 dissolution.
O. Aumont, F. Joos, L. Bopp, B. Schneider, M. Gehlen, R. Gangstø   +5 more
doaj  

Calcium carbonate-calcium phosphate mixed cement compositions for bone reconstruction [PDF]

, 2006
The feasibility of making calcium carbonate-calcium phosphate (CaCO3-CaP) mixed cements, comprising at least 40 % (w/w) CaCO3 in the dry powder ingredients, has been demonstrated.
Arnaud, Atlan, Blom, Bohic, Bohner, Bohner, Braye, Brecevic, Brown, Cazalbou, Chiroff, Collins, Combes, Constantz, Daculsi, Damien, De Maeyer, dos Santos, Elliott, Fernandez, Fontaine, Ginebra, Guillemin, Hatim, Heughebaert, Heughebaert, Huffman, Ikenaga, Jamali, Khairoun, Kon, Larsen, Legeros, Lucas, Maeda, Meldrum, Mirtchi, Mirtchi, Mosmann, Nillson, Ohura, Oyane, Parish, Penel, Piattelli, Rawlings, Reddy, Rey, Rey, Rey, Rey, Sabbides, Souyris, Tofighi, Vilamitjana-Amédée, Walsh   +55 more
core   +2 more sources

Botryoidal and Spherulitic Aragonite in Carbonates Associated with Microbial Mats: Precipitation or Diagenetic Replacement Product?

Frontiers in Earth Science, 2021
Similar carbonate fabrics may result from different pathways of precipitation and diagenetic replacement. Distinguishing the underlying mechanisms leading to a given carbonate fabric is relevant, both in terms of an environmental and diagenetic ...
Yuzhu Ge, Giovanna Della Porta, Chelsea L. Pederson, Stephen W. Lokier, René Hoffmann, Adrian Immenhauser, Adrian Immenhauser   +6 more
doaj   +1 more source

Reconstruction of deglacial sea surface temperatures in the tropical Pacific from selective analysis of a fossil coral [PDF]

, 2005
The Sr/Ca of coral skeletons demonstrates potential as an indicator of sea surface temperatures (SSTs). However, the glacial-interglacial SST ranges predicted from Sr/Ca of fossil corals are usually higher than from other marine proxies.
Allison, N., Ellam, R. M., Finch, A. A., Newville, M., Sutton, S. R., Tudhope, A. W.   +5 more
core   +1 more source

Stable isotope values in modern bryozoan carbonate from New Zealand and implications for paleoenvironmental interpretation [PDF]

, 2004
Bryozoan carbonate contains useful geochemical evidence of temperate shelf paleoenvironments. Stable isotope values were determined for 103 modern marine bryozoan skeletons representing 30 species from New Zealand. δ18O values range from -1.4 to 2.8 VPDB,
Anderson T. F., Boardman R. S., Bone Y., Corfield R. M., Forester R. M., Goodwin D. H., James N. P., Nelson W. A., Rao C. P., Smith A. M., Taviani M.   +10 more
core   +2 more sources

Fluorescent imaging and bio-cellular uptake assessment of gold-near infrared dye conjugated cockle shell calcium carbonate nanoparticle [PDF]

Iraqi Journal of Veterinary Sciences
In recent years, fluorescent imaging has emerged as an active area of interest in medical imaging. Fluorescent imaging plays a critical role in molecular imaging.
Hanan K. Kiranda, Rozi B. Mahmud, Saffanah K. Mahmood, Zuki A. Zakaria   +3 more
doaj   +1 more source

4.6 billion year old aragonite and its implications for understanding the geological record of Ca-carbonate [PDF]

, 2015
Owing to its diagenetic instability, aragonite is rare in the geological record and almost entirely absent from pre-carboniferous sedimentary rocks. The former presence of this mineral in older deposits has to be inferred from petrographic, chemical or ...
Lee, Martin R., Lindgren, Paula
core   +2 more sources

Isotopic-geochemical features of thermal water of the Kyndyg deposit (Republic of Abkhazia)

Литосфера, 2020
Subject. The aim of the work is to study the mechanism and sources of water formation, as well as the peculiarities of carbonate mineralization in the aquifer of the Kyndyg thermal water deposit. Materials and methods.
S. S. Potapov, D. V. Kiseleva, O. Ya. Chervyatsova, N. V. Parshina, M. V. Chervyakovskaya, S. V. Karpova, N. V. Cherednichenko, R. S. Dbar   +7 more
doaj   +1 more source

A Review and Meta-Analysis of Potential Impacts of Ocean Acidification on Marine Calcifiers From the Southern Ocean

Frontiers in Marine Science, 2021
Understanding the vulnerability of marine calcifiers to ocean acidification is a critical issue, especially in the Southern Ocean (SO), which is likely to be the one of the first, and most severely affected regions.
Blanca Figuerola, Alyce M. Hancock, Narissa Bax, Vonda J. Cummings, Rachel Downey, Huw J. Griffiths, Jodie Smith, Jonathan S. Stark   +7 more
doaj   +1 more source

Differential expression of three galaxin-related genes during settlement and metamorphosis in the scleractinian coral Acropora millepora [PDF]

, 2016
BACKGROUND: The coral skeleton consists of CaCO3 deposited upon an organic matrix primarily as aragonite. Currently galaxin, from Galaxea fascicularis, is the only soluble protein component of the organic matrix that has been characterized from a coral.
Ball, Eldon, Hayward, David, Lin, Zhiyi, Miller, David J, Reyes-Bermudez, Alejandro   +4 more
core   +1 more source