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Rare earth elements in Solnhofen biogenic apatite: geochemical clues to the palaeoenvironment

Record type: Article

Rare earth element (REE) concentrations in biogenic apatite samples (coprolite, bone and soft-tissue) were used to investigate the environment of deposition of the celebrated Solnhofen fossil Lagerstätten. The measured REE patterns are similar between different localities, lithologies (flinz, fäule) and levels in the Upper Solnhofen Plattenkalk, suggestive of a stable REE supply during deposition. The behaviour of cerium in the Solnhofen samples implies that bottom water conditions were not anoxic, and variations in the cerium anomaly can be explained by differences in burial rate. These results provide further geochemical support for current depositional models [Barthel, K.W., 1978. Solnhofen: Ein Blick in die Erdgeschichte. Ott Verlag, Thun.; Barthel, K.W., Swinburne, N.H.M., Conway Morris, S., 1990, Solnhofen. A Study in Mesozoic Palaeontology. Cambridge Univ. Press, Cambridge.] that propose that extra-basinal processes are responsible for the interbedded nature of the Solnhofen deposits, rather than intra-basinal processes such as water turnover events.

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Citation

Kemp, R.A. and Trueman, C.N. (2003) Rare earth elements in Solnhofen biogenic apatite: geochemical clues to the palaeoenvironment Sedimentary Geology, 155, (1-2), pp. 109-127. (doi:10.1016/S0037-0738(02)00163-X).

More information

Published date: 2003
Keywords: Solnhofen, Geochemistry, Coprolites, Apatite, REE, Palaeoenvironment

Identifiers

Local EPrints ID: 37969
URI: http://eprints.soton.ac.uk/id/eprint/37969
ISSN: 0037-0738
PURE UUID: fc26deca-9057-4778-983a-39b28d64ae0f

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Date deposited: 26 May 2006
Last modified: 17 Jul 2017 15:40

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Contributors

Author: R.A. Kemp
Author: C.N. Trueman

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