Title of article
Evaluating Mg/Ca in belemnite calcite as a palaeo-proxy
Author/Authors
Li، نويسنده , , Q. and McArthur، نويسنده , , J.M. and Doyle، نويسنده , , P. and Janssen، نويسنده , , N. and Leng، نويسنده , , M.J. and Müller-Veggian، نويسنده , , W. and Reboulet، نويسنده , , S.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2013
Pages
11
From page
98
To page
108
Abstract
The Mg/Ca, Sr/Ca, δ18O and δ13C compositions are given for well-preserved specimens of ten belemnite species/genera from three stratigraphic intervals. The data help assess the use of these proxies for palaeo-oceanography. Samples are from Dorset, UK (Pliensbachian; 5 species); Cambridgeshire, UK (Callovian; 1 species); and the Vocontian Basin, SE France (Valanginian; 4 genera). In none of these belemnite populations (at species or genera level) does Mg/Ca correlate with δ18O. Neither do values of δ18O correlate with Mg/Ca along a microsampled radial profile across a single specimen of Cylindroteuthis puzosiana (Callovian). The use of Mg/Ca is therefore considered to be unreliable as a palaeo-temperature indicator for these belemnite species and genera.
Keywords
Belemnite , ?18O , Mg/Ca , Sr/Ca , Palaeo-proxies , Palaeo-temperature
Journal title
Palaeogeography, Palaeoclimatology, Palaeoecology
Serial Year
2013
Journal title
Palaeogeography, Palaeoclimatology, Palaeoecology
Record number
2297961
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