. Acadian geology [microform] : the geological structure, organic remains and mineral resources of Nova Scotia, New Brunswick and Prince Edward Island. Geology; Paleontology; Geology; Geology; Geologie; Paléontologie; Géologie; Géologie. cARnoNiKEnous op nkw nituNswicK. 989 Some countonanro is given to this view by the existence of petroleum sjjrinf^.s nt present in tiie contiimiUlon of the Siiine ileposit, and l)y tiie prcseuco of minute lissures filled witli the minenil, wliieh might, however, bo oxphiined on the suppoHition of pressure exerted on a .soft or scmiduid bed. The hypothes
. Acadian geology [microform] : the geological structure, organic remains and mineral resources of Nova Scotia, New Brunswick and Prince Edward Island. Geology; Paleontology; Geology; Geology; Geologie; Paléontologie; Géologie; Géologie. cARnoNiKEnous op nkw nituNswicK. 989 Some countonanro is given to this view by the existence of petroleum sjjrinf^.s nt present in tiie contiimiUlon of the Siiine ileposit, and l)y tiie prcseuco of minute lissures filled witli the minenil, wliieh might, however, bo oxphiined on the suppoHition of pressure exerted on a .soft or scmiduid bed. The hypothesis of formation from woody matter, after the manner of coal, is also accompanied with serious dilHcultics. The composition of jet and of recent bituminous coal found in peat-bogs, prove the possibility of this mode of formation; and this is certainly the most natural way of accounting for the production of the coaly aiid bitu- minous matter of the containing beds; but large and pure beds of coal arc nsually accompanied by evidences of growth in situ, and accumulations of drift-trunks arc usually loaded with earthy matter, while none of these conditions exist in the deposit in rpiestion. The want of the first is, however, perfectly consistent with the long and perfect decomposition implied in this view, as well as in the homo- geneity of the mass, and the abundance of bitumen in the contairung shales ; and in a deposit containing so little evidence of strong currents or violent changes, it may not be unreasonable to suppose that drift vegetable matter may have accumulated during long i)eriods in clear water. In connexion with this it is worthy of rcnuirk, that the com- l)arative absence of iroi\ pyrites, in connexion with the presence of large quantities of carbomxte of iron in the shales, jinircs" that these beds were dej)osited in fresh and very pure water, if it be admitted that their bitumen resulted from the decomposition of organic matter, Neither is the great puri
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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
