Unraveling the atomic structure of biogenic silica: evidence of the structural association of Al and Si in diatom frustules

Autor: Anne-Marie Flank, Georges Calas, J. E. E. van Beusekom, L. Beck, A.J. Van Bennekom, Marion Gehlen

Publikováno v: Geochimica et Cosmochimica Acta
Geochimica et Cosmochimica Acta, 2002, 66, pp.1601-1609. ⟨10.1016/S0016-7037(01)00877-8⟩
Geochimica et Cosmochimica Acta, Elsevier, 2002, 66, pp.1601-1609. ⟨10.1016/S0016-7037(01)00877-8⟩

We used X-ray absorption spectroscopy at the Al K-edge to investigate the atomic structure of biogenic silica and to assess the effect of Al on its crystal chemistry. Our study provides the first direct evidence for a structural association of Al and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e381f737a26bc6de86eb03e426ddd205
https://doi.org/10.1016/s0016-7037(01)00877-8

The annual production of biogenic silica in the Antarctic Ocean

Autor: A.J. Van Bennekom, Paul Tréguer

Publikováno v: Marine Chemistry. 35:477-487

The total annual production of biogenic silica (BSi) of the Antarctic Ocean is estimated at about 50 tera (T = 1012) mol Si. This flux is calculated using available direct measurements of integrated silicic acid uptake rates, indirect estimates from

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::97eef63b7e1615edeb57a881ff84ce9b
https://doi.org/10.1016/s0304-4203(09)90038-x

Cadmium, copper and iron in the Scotia Sea, Weddell Sea and Weddell/Scotia Confluence (Antarctica)

Autor: Rob F. Nolting, A. Masson, A.J. Van Bennekom, de Henricus Baar

Publikováno v: Marine Chemistry, 35(1), 219-243. ELSEVIER SCIENCE BV

Until recently, little was known about trace metals in the Southern Ocean. Vertical profiles and surface water sections along 49°W exhibit Cd concentrations of 0.2–0.8 nM, increasing with depth, as for phosphate. A linear relationship between Cd a

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https://doi.org/10.1016/s0304-4203(09)90019-6

Diatoms in surface sediments of the Indonesian Archipelago and their relation to hydrography

Autor: T.C.E. van Weering, J. M. van Iperen, A.J. van Bennekom

Publikováno v: Twelfth International Diatom Symposium ISBN: 9789048143245

Diatoms from 53 surface sediments (water depth 350–7200 m) of the Indonesian Archipelago were studied to determine the recent distribution of important assemblages. Three significant assemblages were distinguished, each related to hydrographie para

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https://doi.org/10.1007/978-94-017-3622-0_14

Hydrography and silica budget of the Angola Basin

Autor: G.W. Berger, A.J. van Bennekom

Publikováno v: Netherlands Journal of Sea Research. 17:149-200

Resume Nous presentons une revue des connaissances actuelles sur les circulations des masses d'eau dans le Bassin de l'Angola, particulierement pour la region du panache saumâtre et de l'eventail sedimentaire profond du fleuve Zaire. La limite du pa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f069daa3ef37b63b935e7d63a74641ce
https://doi.org/10.1016/0077-7579(84)90047-4