A note on reported plant fossils from the Flume Ridge area of southwestern New Brunswick
DOI :
https://doi.org/10.4138/1863Résumé
Reports of geological surveys undertaken during the latter part of the last century state that plant fragments were recovered from pre-Carboniferous rocks of the Flume Ridge area in Charlotte County, New Brunswick. An attempt was made to confirm the presence of these plant remains in order to provide age constraints on the otherwise unfossiliferous Digdeguash, Sand Brook, and Flume Ridge formations. Re-examination of a reported locality on Cox Brook and of an original specimen stored at the New Brunswick Museum in Saint John suggests that material identified as "Lepidostrobus" is actually a spotted slate chip incorporated in a wacke bed. The recognized inorganic nature of die supposed fossils precludes assignment of specific ages to the pre-Carboniferous rocks underlying a large tract of southwestern New Brunswick. RÉSUMÉ Les rapports des levés géologiques entrepris vers la fin du siècle dernier mentionnent que des fragments de plantes furent trouvés dans des roches pré-Carbonifère de la région de Flume Ridge du comté de Charlotte, Nouveau-Brunswick. Une tentative a été faite de confirmer la présence de ces restes de plantes afin de fournir des données sur l'âge des formations, par ailleurs non fossiliferes, de Digdeguash, Sand Brook el Flume Ridge. Les réexamens d'un site mentionné le long du ruisseau Cox et d'un échantillon original conservé au Musée du Nouveau-Brunswick à Saint-Jean suggère que le matériel identifié comme "Lepidostrobus" est en fait un fragment de shale tacheté dans un lit de wacke. La nature inorganique reconnue des supposés fossile empêche l'attribution d'âges spécifiques aux roches pré-Carbonifère sous-jacentes à une grande superficie du sud-est du Nouveau-Brunswick. [Traduit par le journal]Téléchargements
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