2004
DOI: 10.1023/b:limi.0000040736.62014.2d
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Transformation of Hydroxyapatite of Bone Phosphate from the Ocean Bottom during Fossilization

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Cited by 41 publications
(31 citation statements)
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“…Modification of the mineral composition of fossil bones (e.g., presence of authigenic calcite) from the Escuminac Formation has been previously reported in the placoderm Bothriolepis canadensis and the osteolepiform Eusthenopteron foordi [36]. Bioapatites usually display small particle sizes and significant carbonate contents [15,52]. In addition, apatite particles in bones of living animals are coated by a poorly-ordered hydrous phosphatic phase [53] and associated with organic polymers (collagen), which transform [54] or decay after an animal's death [55].…”
Section: Preservation Versus Recrystallization Of Triazeugacanthus Timentioning
confidence: 94%
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“…Modification of the mineral composition of fossil bones (e.g., presence of authigenic calcite) from the Escuminac Formation has been previously reported in the placoderm Bothriolepis canadensis and the osteolepiform Eusthenopteron foordi [36]. Bioapatites usually display small particle sizes and significant carbonate contents [15,52]. In addition, apatite particles in bones of living animals are coated by a poorly-ordered hydrous phosphatic phase [53] and associated with organic polymers (collagen), which transform [54] or decay after an animal's death [55].…”
Section: Preservation Versus Recrystallization Of Triazeugacanthus Timentioning
confidence: 94%
“…Transformation of bioapatite to carbonate-fluorapatite can occur in low-temperature environments and has been reported in marine or continental fossil deposits [14,28,52,61]. It however depends on the F supply.…”
Section: Preservation Versus Recrystallization Of Triazeugacanthus Timentioning
confidence: 99%
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“…The standard used was NBS 120c Florida phosphate rock that showed a value of 21.13±0.51%o (VSMOW) (n=12). Vennemann and Hegner (1998) alogy when dealing with osseous samples, in contrast with that of fluorapatite, regarded as the altered mineralogy (Hubert et al, 1996;Kolodny et al, 1996;Grimes et al, 2003;Nemliher et al, 2004). Based upon this evidence it can be argued that the Somosaguas samples retain a reliable geochemical signal, affected at most only by a low degree of diagenetic alteration.…”
Section: Methodsmentioning
confidence: 99%
“…The content of F in biological hydroxylapatite is timedependent and during diagenesis the change from dahllite-type (\1 wt% F) to francolite-type ([1 wt% F) is accompanied by an increase in crystal size and stability (LeGeros and Suga 1980;Nemliher et al 2004;Greene et al 2004). It is assumed that F is completely incorporated into the hydroxylapatite structure (Nemliher et al 2004).…”
Section: Fluorinementioning
confidence: 99%