But this mass did not rest on the
schistus; it is immediately upon a mass of whin-stone; and the schistus
is in the harbour, so that this whin-stone mass seems to be here
interposed between the pudding-stone and schistus. We then pursued
the coast southwards until we found the junction of the schistus and
sand-stone strata about two miles from Eymouth; but here the junction
was not attended with any pudding-stone that we could perceive.
Having found the same or similar appearances from the one end to the
other, and on both sides of that range of mountains which run from sea
to sea in the south of Scotland, we may now extend our view of this
mineral operation in comprehending every thing of the same kind which we
meet with in our island or any other distant country.
Thus perhaps the pudding-stone of the south of England will be
considered in the same light as having been formed of the _debri_ and
_detritus_ of the flinty bodies.
In the island of Arran, there is also a pudding-stone, even in some
of the summits of the island, exactly upon the border of the schistus
district, as will be described in the natural history of that island.
Pages:
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436