RECORD: Darwin, C. R. Geological diary: The Cliffs are continued up to the Altos of old Tucapel. [2.1835] CUL-DAR35.350 Transcribed by Kees Rookmaaker, edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Kees Rookmaaker, corrections and editing by John van Wyhe 5.2011. RN1
NOTE: This document, part of the largest scientific document composed by Darwin during the voyage of the Beagle, is written mostly in ink. Marginal notes are here integrated into the text.
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Reproduced with the permission of the Syndics of Cambridge University Library and William Huxley Darwin.
The cliffs are continued up to the Altos of old Tucapel. — about 10 miles to the South & in the interior there is a high range of mica slate. —
P. Rumena & Lavapie. — Between these points for a length of about 8 miles, the land which had formed even plains, became [southern] higher & much broken: The cliffs were of same constitution, but the strata, instead of being horizontal, were all inclined at ∠ 40° to
about from SSE to S — They were very even — Three principal ridges were thus composed which might be traced someway in the country — There were others less apparent. I think at least 8 or 9 lines of elevation. — On the east extremity
of this E & W band of disturbance, the strata were less incline not more perhaps than 20° — There was no trace of anticlinal dip. — There is clearly an analogous case with that of Chiloe. We see in the tertiary period bands of upheaval have both run N & S & E E W. in like manner as
grand the secondary E & W mountain chains have been shown to do (between Andes & Pacific): — The form surface of land I have said entirely follow follows in its shape these lines of elevations:
it is also remarkable as clearly forming
the this most projecting headland part of the coast. — In this respect also it is fact we have also seen it on the Isd of S. Maria. — All tertiary. —
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Citation: John van Wyhe, editor. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
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