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(Table 1) Chemical analyses of rock samples from low atolls of the Western Indian Ocean

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Bibliographic Details
Main Authors:	Shkol'nik, E L, Baturin, Gleb N, Zhegallo, E A, Zalishchak, B L, Basov, Ivan A
Format:	Dataset Open Access
Language:	en
Published:	PANGAEA 2006
Subjects:	AfI; AI; Akademik Petrovsky; Aluminium oxide; AP13; Archive of Ocean Data; ARCOD; Area/locality; Astov Island; Ben African Island; Calcium oxide; Carbon, organic, total; Carbon dioxide; CI; Cosmoledo Island; Elevation of event; Event label; Fluorine; HAM; Hammer; Iron oxide, Fe2O3; Latitude of event; Longitude of event; Loss of ignition analysis; Loss on ignition; Magnesium oxide; Manganese oxide; Phosphorus pentoxide; Potassium oxide; Sample code/label; Silicon dioxide; Sodium oxide; Sulfite; Titanium dioxide; Wet chemistry
Online Access:	Acceder al recurso
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_version_	1867169278793351168
author	Shkol'nik, E L Baturin, Gleb N Zhegallo, E A Zalishchak, B L Basov, Ivan A
author_facet	Shkol'nik, E L Baturin, Gleb N Zhegallo, E A Zalishchak, B L Basov, Ivan A
collection	Datos científicos de ciencias marinas y ambientales
contents	Compositions, structures, and microstructures of different types of phosphorites and poorly phosphatized rocks from low atolls in the near-equatorial part of the Western Indian Ocean are described. The rocks were examined under optical and scanning microscopes using microprobe techniques and etching of selected samples with weak solvents as well as with the help of chemical analyses. It is proved that phosphorites have been formed owing to the uneven phosphatization of primary carbonate rocks; degree of their phosphatization ranges from traces to 40% P2O5. In the phosphorites numerous organic remains were encountered; they included fragments of plankton, debris of tortoise shells, and coccoidal and filamentous bacteria-like formations. It is suggested that the phosphorites formed due to high local biological productivity over the outer edges of coral reefs and are not related to guano accumulation or to endoupwelling.
format	Dataset Open Access
id	pangaea_https___doi_org_10_1594_PANGAEA_726463
institution	PANGAEA
language	en
publishDate	2006
publisher	PANGAEA
record_format	pangaea
spellingShingle	(Table 1) Chemical analyses of rock samples from low atolls of the Western Indian Ocean Shkol'nik, E L Baturin, Gleb N Zhegallo, E A Zalishchak, B L Basov, Ivan A AfI; AI; Akademik Petrovsky; Aluminium oxide; AP13; Archive of Ocean Data; ARCOD; Area/locality; Astov Island; Ben African Island; Calcium oxide; Carbon, organic, total; Carbon dioxide; CI; Cosmoledo Island; Elevation of event; Event label; Fluorine; HAM; Hammer; Iron oxide, Fe2O3; Latitude of event; Longitude of event; Loss of ignition analysis; Loss on ignition; Magnesium oxide; Manganese oxide; Phosphorus pentoxide; Potassium oxide; Sample code/label; Silicon dioxide; Sodium oxide; Sulfite; Titanium dioxide; Wet chemistry Compositions, structures, and microstructures of different types of phosphorites and poorly phosphatized rocks from low atolls in the near-equatorial part of the Western Indian Ocean are described. The rocks were examined under optical and scanning microscopes using microprobe techniques and etching of selected samples with weak solvents as well as with the help of chemical analyses. It is proved that phosphorites have been formed owing to the uneven phosphatization of primary carbonate rocks; degree of their phosphatization ranges from traces to 40% P2O5. In the phosphorites numerous organic remains were encountered; they included fragments of plankton, debris of tortoise shells, and coccoidal and filamentous bacteria-like formations. It is suggested that the phosphorites formed due to high local biological productivity over the outer edges of coral reefs and are not related to guano accumulation or to endoupwelling.
title	(Table 1) Chemical analyses of rock samples from low atolls of the Western Indian Ocean
topic	AfI; AI; Akademik Petrovsky; Aluminium oxide; AP13; Archive of Ocean Data; ARCOD; Area/locality; Astov Island; Ben African Island; Calcium oxide; Carbon, organic, total; Carbon dioxide; CI; Cosmoledo Island; Elevation of event; Event label; Fluorine; HAM; Hammer; Iron oxide, Fe2O3; Latitude of event; Longitude of event; Loss of ignition analysis; Loss on ignition; Magnesium oxide; Manganese oxide; Phosphorus pentoxide; Potassium oxide; Sample code/label; Silicon dioxide; Sodium oxide; Sulfite; Titanium dioxide; Wet chemistry
url	https://doi.org/10.1594/PANGAEA.726463