File:The Quarterly journal of the Geological Society of London (13205806453).jpg

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84.
PROCEEDINGS OF THE GEOLOGICi^L SOCIETY. .DeC. ^
Thus these most distorted
cases require the same expla-
nation as the others, and can
be accounted for by supposing
them to have been subjected to
a pressure acting obliquely on
the shell and pressing it, as it
were, downwards and forwards
atthe same time. This pressure,
acting in a constant direction
upon shells scattered about
in different positions, has pro-
duced the variety of extrava-
gant forms which are to be
found at South Petherwin
Tintagel, and every other lo-
cality where fossils are found
in rocks much cut up by clea-
vage. The oblique pressure
may always be resolved into
the same two direct forces, Z)
one forwards along the plane
of cleavage, towards
the intersection of
the cleavage and the
bedding, the other
downwards in a di-
rection perpendicu-
lar to the cleavage. -^t
These are the direc-
tions of the compres-
sion and expansion
previously demon- ~
strated. Mr. Phillips
has apparently al-
luded to this oblique
pressure in the pass- Z
age already quoted.
But the facts already
stated and others to
be brought forward, 2^
show that his expla-
nation is not suffi-
cient to include the
variously complica- ^.
ted eases of distor-
tion.
When the
ding and
exactly coincide at
Tintagel, the shells
bed-
d 9§BVB9f3 sdi oi

3YB9b io saBla at
Date
Source https://www.flickr.com/photos/biodivlibrary/13205806453
Author Geological Society of London
Full title
InfoField
The Quarterly journal of the Geological Society of London.
Page ID
InfoField
36932813
Item ID
InfoField
113687 (Find related Wikimedia Commons images)
Title ID
InfoField
51125
Page numbers
InfoField
Page 84
BHL Page URL
InfoField
https://www.biodiversitylibrary.org/page/36932813
Page type
InfoField
Text
Flickr sets
InfoField
  • The Quarterly journal of the Geological Society of London. v. 3 (1847).
Flickr tags
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Flickr posted date
InfoField
17 March 2014
Credit
InfoField
This file comes from the Biodiversity Heritage Library.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.


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26 August 2015

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current12:26, 26 August 2015Thumbnail for version as of 12:26, 26 August 20151,199 × 2,069 (608 KB) (talk | contribs)== {{int:filedesc}} == {{BHL | title = The Quarterly journal of the Geological Society of London. | source = http://www.flickr.com/photos/biodivlibrary/13205806453 | description = 84. <br> PROCEEDINGS OF THE GEOLOGICi^L SOCIETY. .DeC. ^ <br> Thus these...

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