Raman and cathodoluminescence spectroscopic investigations on Permian fossil wood from Chemnitz—a contribution to the study of the permineralisation process

Witke, K.; Götze, Jens; Rößler, Ronny; Dietrich, D.; Marx, G.

doi:10.1016/j.saa.2003.12.045

Cited by 42 publications

(26 citation statements)

References 28 publications

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“…Another contribution of the Raman analysis is the detection of an intense luminescence, particularly in the outer layers of adults and juveniles, and the inner layers of juveniles. This luminescence may be due to several organic compounds: those carrying chromophores or fluorescent groups (Bell et al 2002), organics with amide I groups (Schachar & Solin 1975) or cellulose and lignins in Permian fossil wood (Witke et al 2004). In bivalves, a high luminescence was recorded in the shell nacre nucleus of Pinctada margarifera (Rousseau et al 2005).…”

Section: Discussionmentioning

confidence: 99%

Mineral phase in shell repair of Manila clam Venerupis philippinarum affected by brown ring disease

Trinkler¹,

Bardeau²,

Marin³

et al. 2011

Dis. Aquat. Org.

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The mineral phase of shell repair in the Manila clam Venerupis philippinarum affected by brown ring disease (BRD) was characterised at various scales and at various stages of shell repair by confocal Raman microspectrometry and scanning electron microscopy. Spherulitic and quadrangular aragonite microstructures associated with polyene pigments were clearly observed. Von Kossa staining showed that at the beginning of shell repair, hemocytes are filled with insoluble calcium carbonate salts in all fluids and then are transported toward the extrapallial fluids and the repair sites. Our analyses suggest that after a Vibrio tapetis attack and BRD deposit some clams rapidly cover the deposit, resulting in a modification in the microstructure, which could be produced by the participation of both the mantle and hemocytes.KEY WORDS: Aragonite · Hemocytes · Shell microstructure · Calcium carbonate · Biomineralization · Mollusc · Raman microspectrometry · Scanning electron microscopy Resale or republication not permitted without written consent of the publisherDis Aquat Org 93: 149-162, 2011149-162, al. 1989149-162, , Flassch et al. 1992. Landeda was the first Manila clam production site in France (Paillard et al. 1989, Flassch et al. 1992.Vibrio tapetis colonises the periostracum and inhibits the normal process of shell biomineralisation. The external response of the clam to the bacterial attack consists of a secretion of a brown organic matrix on the inner face of the shell, the well-known 'brown ring'. Immunological or PCR studies on the different physiological fluids of the clam have shown that, at later stages of the infection, V. tapetis invades the circulatory system (hemolymph) and the extrapallial fluids (Allam 1998, Allam et al. 2002, Paillard et al. 2006. At this advanced stage, clams often die from a hemolymphatic septicaemia. In some cases, clams recover by secreting a white shell layer on the brown organic matrix (Paillard & Maes 1995a,b). The bulk organic matrix associated with the shell repair has been recently characterised using Raman microspectrometry, wavelength-dispersive spectrometry (WDS) microprobe analysis and organic matrix quantification (Trinkler et al. 2009(Trinkler et al. , 2010a. However, the mineral phase and the microstructure of repaired Manila clam shells, including those that exhibit a fully repaired shell, have not yet been studied. In the present study, experimental investigations have been performed on the microstructure and the nature of the calcium carbonate repair layer, using Raman microspectrometry and scanning electron microscopy (SEM). In particular, Raman microspectrometry, a nondestructive and noninvasive technique, provides qualitative and quantitative information on organomineral composites (Urmos et al. 1991, Kontoyannis & Vagenas 2000, Withnall et al. 2003, Hedegaard et al. 2006, Carteret et al. 2009). A complementary characterisation using the Von Kossa stain, which is a stain specific for insoluble calcium salts, was performed on hemolymph and extrapallia...

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Section: Discussionmentioning

confidence: 99%

Mineral phase in shell repair of Manila clam Venerupis philippinarum affected by brown ring disease

Trinkler¹,

Bardeau²,

Marin³

et al. 2011

Dis. Aquat. Org.

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“…3D, in R01re.int, shows characteristics bands of hematite at 223, 289, 411 and 613 cm -1 , therefore suggesting this compound as the red pigment present in the ceramic sample. Hematite has also been found in different red tonalities from orange to brown in the decoration of Viluco and Chilean Diaguita type ceramics 21 . Additional bands reported in the literature for this compound 22,26,27 at 247 and 498 cm -1 , were not observed in the present work.…”

Section: Resultsmentioning

confidence: 99%

Micro-Raman Spectroscopy of Decorated Pottery of the Diaguita Culture From Iv Region, Chile (9th-15th Century Ad)

Osorio

Fleming

Martínez

et al. 2014

J. Chil. Chem. Soc.

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Raman spectroscopy pigments on decorated antique Chilean pottery belonging to the Diaguita`s culture deposited in Museum of Limarí, have been studied by using Raman spectroscopy. Four ceramic fragments from the unknown contexts were examined. Four colors were found with certainty: red, black, brown and white. Quartz and manganese (kempite) salts, as well as different types of oxide pigments: hematite, tenorite and possibly goethite, were identified.

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“…Fossilization resulted when a volcanic eruption entombed a plant assemblage that includes tree ferns, arboreal sphenophytes, gymnosperms, and epiphytic plans [65][66][67][68][69]. Most specimens are mineralized with quartz and moganite (chalcedony), with minor amounts of iron oxide.…”

Section: Fluoritementioning

confidence: 99%

“…This mineralization has been interpreted as evidence of a multi-stage process when fluorite-bearing fluids infiltrated along cracks and decayed areas of wood that had previously been partially mineralized with amorphous silica [55]. Cathodoluminescence microscopy (CL) has proven to be a valuable method for studying the distribution of fluorite in Chemnitz wood [65][66][67][68]. However, the "fluorite phenomenon" in Chemnitz fossils is not yet clearly understood.…”

Section: Fluoritementioning

confidence: 99%

Mineralogy of Non-Silicified Fossil Wood

Mustoe

2018

Geosciences

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Abstract:The best-known and most-studied petrified wood specimens are those that are mineralized with polymorphs of silica: opal-A, opal-C, chalcedony, and quartz. Less familiar are fossil woods preserved with non-silica minerals. This report reviews discoveries of woods mineralized with calcium carbonate, calcium phosphate, various iron and copper minerals, manganese oxide, fluorite, barite, natrolite, and smectite clay. Regardless of composition, the processes of mineralization involve the same factors: availability of dissolved elements, pH, Eh, and burial temperature. Permeability of the wood and anatomical features also plays important roles in determining mineralization. When precipitation occurs in several episodes, fossil wood may have complex mineralogy.

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Raman and cathodoluminescence spectroscopic investigations on Permian fossil wood from Chemnitz—a contribution to the study of the permineralisation process

Cited by 42 publications

References 28 publications

Mineral phase in shell repair of Manila clam Venerupis philippinarum affected by brown ring disease

Mineral phase in shell repair of Manila clam Venerupis philippinarum affected by brown ring disease

Micro-Raman Spectroscopy of Decorated Pottery of the Diaguita Culture From Iv Region, Chile (9th-15th Century Ad)

Mineralogy of Non-Silicified Fossil Wood

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