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Resultats globals: 2 registres trobats en 0.03 segons.
Articles, 2 registres trobats
Articles 2 registres trobats  
1.
12 p, 3.4 MB The characterization of CaCO3 in a geothermal environment : A sem/tem-eels study / Kim, Jin-Wook (Yonsei University. Department of Earth System Sciences) ; Kogure, Toshihiro (University of Tokyo. Department of Earth and Planetary Science) ; Yang, Kiho (Yonsei University. Department of Earth System Sciences) ; Kim, Sang-Tae (McMaster University. School of Geography and Earth Sciences) ; Jang, Young-Nam (Korea Institute of Geoscience and Mineral Resources) ; Baik, Hion-Suck (Korea Basic Science Institute) ; Geesey, Gill (Montana State University. Department of Microbiology)
Mineralization of microbial biomass is a common phenomenon in geothermal habitats, but knowledge of the structure of the minerals formed in these environments is limited. A combination of spectroscopic, microscopic, and stable isotopic methods, as well as the chemical analysis of spring water, were employed in the present study to characterize calcium carbonate minerals deposited in filamentous cyanobacterial mats in different locations of La Duke hot spring, a circumneutral thermal feature near the north entrance of Yellowstone National Park, Montana, USA. [...]
2012 - 10.1346/CCMN.2012.0600505
Clays and Clay Minerals, Vol. 60, Núm. 5 (2012) , p. 484-495  
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2.
8 p, 574.1 KB A Universal carbonate ion effect on stable oxygen isotope ratios in unicellular planktonic calcifying organisms / Ziveri, Patrizia (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Thoms, S. (Alfred-Wegener-Institut für Polar- und Meeresforschung) ; Probert, I. (Station Biologique de Roscoff) ; Geisen, M. (Alfred-Wegener-Institut für Polar- und Meeresforschung) ; Langer, Gerald (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
The oxygen isotopic composition (δ18¦O) of calcium carbonate of planktonic calcifying organisms is a key tool for reconstructing both past seawater temperature and salinity. The calibration of paloeceanographic proxies relies in general on empirical relationships derived from field experiments on extant species. [...]
2012 - 10.5194/bg-9-1025-2012
Biogeosciences, Vol. 9 No. 3 (March 2012) , p. 1025-1032  
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