Data/hora: 11/06/2024 04:39:10

Provedor de dados: | 16
País: | Netherlands
Título: | A fossil gazelle (Gazelle schreuderae nov. spec.) from the Netherlands
Autores: | Hooijer, D.A.
Data: | 1945
Ano: | 1945
Palavras-chave: | 42.84.
Resumo: | In 1944 Miss Dr. A. Schreuder sent me for identification a fossil horncore, which according to the accompanying letter came from a well-boring near Grubbenvorst (province of Limburg). It was found in a coarse sandy layer with gravel at a depth of 61.50 m below the surface; the topographic height of the latter is given as 24.53 m + N.A.P. (N.A.P. = sea-level at Amsterdam). Dr. J. F. Steenhuis, geologist to the Government Geological Foundation, informed me that deep borings for the water-supply of Central-Limburg have been made in the years 1918, 1919, and 1922 S. and S.E. of Grubbenvorst. Evidently we have to do with boring no. I of October 1918, which reached a depth of 83 m, the top being at 24.50 m + N.A.P. (Geological Foundation Index no. 695/4). The section is as follows (the denotations of the strata are those used by Tesch (1930)) : Laagterras II 8 from 24.50 m + to 15.50 m + N.A.P. Middenterras (?) II 6 and Hoogterras II 1 from 15.50 m + to 4.— m + N.A.P. Zone of the Teglian Clay, "Onderste Fijn" II o from 4.— m + to 2.50 m — N.A.P. More or less coarse, mostly mudfree sand with gravel, alternating with rather fine sand with a variable mud and gravel content from 2.50 m — to 45.50 m — N.A.P. Below 45.50 m — N.A.P. very fine micaceous sand containing much mud. The percentage of mud and mica increases with depth. The boring was finished at a depth of 58.50 m — N.A.P.
Tipo: | Article / Letter to the editor

Identificador:

http://www.repository.naturalis.nl/record/318430

http://dare.uva.nl/cgi/arno/show.cgi?fid=149716

Formato: | application/pdf
Fonte: | Zoologische Mededelingen (0024-0672) vol.25 (1945) nr.9 p.55
Fonte: | (c) Naturalis