RECORD: Anon. n.d. Dunbar / N Birwick [Berwick]. CUL-DAR186.39. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 10.2023. RN1

NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin.


[1]

Dunbar

at junction on shore of the Felspathic ash & upper old Red the ash seems to dip under the old Red but at a much less angle, for some hundreds of yards to west of 'junction the 2 seem interbedded; the red marl of the sandstone series in places looks very like the ash—

the Columnar Felstone all harden in very fine ash of brilliant red & has the Redstone been the origin of both the ash & the Felstone.

Ripple marked "ash" — direction S ripples NNW by SSE  steepest side to S. — Very evidently ripples,

[1v]

N. Birwick

on the east of the harbour it is very clearly seen that the "red ash" dips to the West under the basalt.

The "Tail" mound on this shore is just N.N.E. of Birwick Lan to cliff of "red ash" alters in a line just N.E of Birwick Lan; the deep is very steep in W. side near the basalt on the shore — the dip appears to pass round by the N [sketch] E in line with the "tail" are [illeg] fine borders running more than in other parts.

If [sketch] it were not meant to dip alters several times

[2]

in the shore — it would seen that this dip to N of Birwick was connected with its rise and therefore it resulted from local action thus was the points in which Maclaren was in doubt.


Return to homepage

Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)

File last updated 2 February, 2024