Apres avoir monte et suivi cette roche
parmi les pierres et les decombres, une heure et demie, on trouve
cette roche de schiste surmontee d'autres rochers fort hauts qui sont
calcaires, et dont les lits sont fort horizontaux. Les schistes,
qui sont directement sous les roches calcaires, conservent la meme
inclinaison qu'elles ont a leur pied."
Here is an observation which certainly agrees with that given by M. de
Luc, and would seem to confirm this conclusion, that strata had been
deposited upon those _schisti_ after they had been changed from their
natural or horizontal position, and become vertical; at the same time,
this conclusion is not of necessary consequence, without examining
concomitant appearances, and finding particular marks by which this
operation might be traced; for the simply finding horizontal strata,
placed above vertical or much inclined schiste, is not sufficient, of
itself, to constitute that fact, while it is acknowledged that every
species of fracture, dislocation, and contortion, is to be found among
the displaced strata of the globe.
Since writing this chapter, I am enabled to speak more decisively upon
that point, having acquired more light upon the subject, as will appear
in the next chapter.
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