. An old chapter of the geological record with a new interpretation, or, Rock-metamorphism (especially the methylosed kind) and its resultant imitations of organisms [microform] : with an introduction giving an annotated history of the controversy on the so-called " Eozoon canadense", and an appendix. Paleontology; Metamorphism (Geology); Paléontologie; Métamorphisme (Géologie). SUPPLEMENTARY NOTE B. 119. a red ids phe n\e We I to ihe 3St iat and jointing. I have repeatedly observed the same thing at other places in the neighbourhood of Sunderland; on one occasion a coralloid with a
. An old chapter of the geological record with a new interpretation, or, Rock-metamorphism (especially the methylosed kind) and its resultant imitations of organisms [microform] : with an introduction giving an annotated history of the controversy on the so-called " Eozoon canadense", and an appendix. Paleontology; Metamorphism (Geology); Paléontologie; Métamorphisme (Géologie). SUPPLEMENTARY NOTE B. 119. a red ids phe n\e We I to ihe 3St iat and jointing. I have repeatedly observed the same thing at other places in the neighbourhood of Sunderland; on one occasion a coralloid with a stem as thick as a man's arm, came under my notice. It is also a common occurrence, where semi- globular bodies are developed, for them to be integrally con- nected with the surface-portion (usually upp >r) of a bed. Fig. 2 represents a portion (about a foot square) taken from a bed at Building Hill. The oblique lines represent west-of- north joints, and the horizontal bounding lines bedding-planes. The specimen, with several others of the kind, was collected about the year 1839, on an occasion when the quarrymen had exposed a singularly beautiful development of such forms. In this example, as in the section fig. 1, the coralloids branch off from the planes of bedding and jointing j but one of its features is worth special notice : the coralloids, according to a note I made at the time, are best developed where branching from the west bounding-plane of the meridional joints, Thesr examples are amply sufficient to disprove the idea that they were formed at the same time as that in which the limestone Avas deposited j also that, howsoever they may have originated, the agent which produced them must have penetrated the partings of both jointing and bedding. It cannot be too strongly impressed on the mind of the reader that the coralloids, also the other configuration to which Dr. Ramsay has referred, are more or less crystalline internally, and consist of carbonate of lime,
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectpaleontology, bookyea
