Thiadens A (6 results)
Published by Academic Journal Offprint from: - Geologie en Mijbbouw - The Journal of the Royal Geological and Mining Society of the Netherlands, Volume 57, No. 1, 1978., 1978
Seller: Nar Valley Books & Prints, King's Lynn, United KingdomNar Valley Books & Prints
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9pp, 4 figs, Printed Card Cover, VGC.
- Softcover
Seller: Pallas Books Antiquarian Booksellers, Leiden, NetherlandsPallas Books Antiquarian Booksellers
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paperbound, 8vo 114 pp. democratisering; zeer goede conditie.
Language: German
Seller: Dr. Frank Rudolph, Steinfeld, D, GermanyDr. Frank Rudolph
Contact seller5-star seller11 S., 3 Abb., 1 Taf., Sprache: Deutsch Gewicht in Gramm: 500.
Quantitative Beach Research. III. An Experiment with Artificial Valves of Donax vittatus
Lever, J., Van den Bosch, M., Cook, H., Van Dijk, T., Thiadens, A. J. H., Thijssen, S. J. & Thissen, R
Seller: ConchBooks, Harxheim, GermanyConchBooks
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On a sandy beach of the Dutch North Sea coast an experiment was carried out with 24000 brightly coloured artificial shell valves of Donax vittatus. Unperforated and perforated (artificial Natica-holes of 1, 2 or 3 mm inner diameter) left and right valves of three sizes (19.7, 24.2, and 28.7 mm shell-length) were used. It appeare…d that under the influence of waves and water currents a clear selection occurred according to size ("size effect"), symmetry ("left-right phenomenon"), presence or absence of a hole ("hole effect"), and diameter of the hole ("diameter effect"). The implication of these observations for studies of the biology of Naticid snails based upon valves collected along the beach are discussed. Furthermore, some remarks are made on the implications of this type of experimental work for sedimentology and marine palaeontology in general. 35 pp., 12 figs, gr. 8.
- Hardcover
Seller: Frans Melk Antiquariaat, HILVERSUM, NetherlandsFrans Melk Antiquariaat
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Kosmos, 1976. Gebonden. Hardcover. 21 x 26 cm. Met illustraties in z/w. 134 pag. UITSTEKEND EXEMPLAAR [Handwerken ].
Published by Utrecht, 1937
Seller: ANTIQUARIAT ERDLEN, Untersteinach b. Kulmbach, GermanyANTIQUARIAT ERDLEN
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0. 4to. 80 S., 1 Taf., 2 gefalt. Taf., 1 gefalt. farb. geolog. Karte. - Diss. Sprache: Englischg - Diss. 0.500 gr.
