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PORTAIL D'INFORMATION GÉOGRAPHIQUE

Sponge gemmules from lake sediments in the Puget Lowland, Washington

Auteur :
TURNER, J.

Description :
Gemmules of five species of freshwater sponge found in deposits at Cedar Mountain bog in the southeaster Puget Lowland were used to infer that during the late-glacial period the water was calcareous, was not deficient in SiO, was aerobic, and had a pH in the range 6.6-8.5. This is consistent with plant fossil data. In view of their paleoenvironmental potential it is worth looking for gemmules when extracting other fossils from lake sediments.


Type de document :
Article de périodique

Source :
Quaternary research New York, 1985, vol. 24, n°. 2, p. 240-243, Références bibliographiques : 11 réf.

Date :
1985

Langue :
Anglais
Droits :
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