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Environment and quantitative morphology of some Silurian tabulates from Gotland Naturalis
Stel, J.H..
An outline is given of reef development in Gotland, Sweden, during the time when the Visby (Llandovery) and Högklint (Wenlock) Beds were deposited together with a sketch of the palaeoecology in the time during which the Hemse and Hamra-Sundre (Ludlow) Beds were formed. Variation is described in the tabulates Favosites hisingeri Edwards & Haime, F. obliquus (Sokolov), F. gothlandicus Lamarck, F. forbesi Edwards & Haime, Syringolites kunthianus (Lindström), and Alveolites suborbicularis Lamarck. In order to clarify ecophenotypic variation of corallite size in tabulates, the corallite area and three different corallite diameters were measured. Although the corallite area is more related to the shape of the organism that lived in a corallite,...
Tipo: Article / Letter to the editor Palavras-chave: 38.23.
Ano: 1978 URL: http://www.repository.naturalis.nl/record/317485
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Lower Palaeozoic erratic favositids from the Island of Sylt, Germany Naturalis
Stel, J.H..
Twelve species of favositids are described. They are derived from silicified boulders found in Pliocene (?) deposits of the Island of Sylt, Germany. Paleofavosites is the dominant genus in this material. Two new species are described, viz. Paleofavosites oekentorpi and Favosites schuddebeursi.
Tipo: Article / Letter to the editor Palavras-chave: 38.20.
Ano: 1991 URL: http://www.repository.naturalis.nl/record/317528
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Snellius II as a policy instrument for marine capacity building Naturalis
Stel, J.H..
Indonesia is the largest archipelago in the world (1.8 million km2 of land, 3.1 million km2 of sea, plus a 200 miles Exclusive Economic Zone covering some 2.7 million km2). Its population, ranking number four on the world list, amounts to more than 216 million people. Marine related programmes are given a high priority in Indonesia. During the last two decades the government has carried out a concerted effort in marine capacity building through bilateral, regional and international co-operation. This effort included increasing man-power development, expanding and improving research facilities, establishing a national marine data centre, improving co-operation within the Indonesian marine science community, and international co-operation. The bilateral...
Tipo: Article / Letter to the editor Palavras-chave: Indonesia; Science policy; Marine capacity building; Global Ocean Observing System; International and regional co-operation; 42.94.
Ano: 2001 URL: http://www.repository.naturalis.nl/record/219446
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The Silurian Upper Burgsvik and Lower Hamra-Sundre Beds, Gotland Naturalis
Stel, J.H.; Coo, Jan C.M. de.
The facies represent five depositional environments: a beach, a fore-shore, a surf, a shallow marine current, and an off-shore environment. The diversity and colony shape of tabulates in facies IV is related to discrete physical and biological factors. The succession of facies reflects a transgressive sequence. Land was situated in the north-west.
Tipo: Article / Letter to the editor Palavras-chave: 38.10.
Ano: 1977 URL: http://www.repository.naturalis.nl/record/317500
Registros recuperados: 4
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