Quick Search:    advanced search

GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help

Journal of the Geological Society

This Article Figures Only Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Web of Science (5) Citing Articles via Google Scholar Google Scholar Articles by Le Roux, G.ël Articles by Shotyk, W. Search for Related Content GeoRef GeoRef Citation

Fate of calcite, apatite and feldspars in an ombrotrophic peat bog, Black Forest, Germany

^{1 1}Institut für Umwelt Geochemie, Im Neuenheimer Feld 234–236, 69120 Heidelberg, Germany
^{2 2}Present address: IRSN, Cadarache, 13115 St. Paul lez Durance, France (e-mail: gael.le-roux@wanadoo.fr)

The distribution of primary minerals in a peat profile was investigated in a dated core (²¹⁰Pb, ¹⁴C) taken from the upper part of an ombrotrophic bog. Using XRD, the most abundant minerals present in the peat were those of the local granite, suggesting that the dust entering the bog is mainly of local origin. Apatite and calcite are restricted to the top 8 cm of the profile, which suggests rapid dissolution. The release of P by apatite dissolution is possibly the main source of plant-available P to the oligotrophic waters. In contrast, quartz and feldspars appear to be preserved for thousands of years despite the low pH and abundance of organic acids. This study suggests that ombrotrophic peat bogs could be valuable archives of aluminosilicate deposition since the Late Glacial.

This article has been cited by other articles:

				A. Sapkota, A. K. Cheburkin, G. Bonani, and W. Shotyk Six millennia of atmospheric dust deposition in southern South America (Isla Navarino, Chile) The Holocene, July 1, 2007; 17(5): 561 - 572. [Abstract] [PDF]