File:The Quarterly journal of the Geological Society of London (12511923045).jpg

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222
PROCEEDINGS OF THE GEOLOGICAL SOCIETY.
Silurian System" in some cases where the evidence adduced by him-
self pointed, as it appears to me, by a true logical inference, to some
modification in the naming of the groups. Thus he continues to de-
signate the May Hill grits by the name Caradoc sandstone, though
their fossils are almost identical with those of the Wenlock beds. In
describing the Usk district he has indeed changed the nomenclature
and elevated certain beds, previously called Caradoc and Llandeilo,
into the Wenlock period ; and after having done this he adds —
" that here (in the Usk district) is a second instance, more re-
markable than that already established on the western side of the
Malvern Hills, of the deposition of sandstones, miaeralogically of the
Caradoc type, in an ocean filled with the life of the Wenlock
period." (Memoir, p. 202.)
Fig. 4. — Biagram showing a vertical section of the Lower Palceozoic
Rocks in the Malverns. (After Phillips ; Memoir, p. 51*.)
Old Red Sandstone, 13.
.
Downton sandstone
Ludlow shales (upper) .
Aymestry rock
Ludlow shales (lower). . .
—
l2
11
10
9
8
7
6
5
4
3
2
1
P
1000 feet.
BJ
■.
Woolhope limestone . . .
v^. — - ----- —
^^:;-
2000 feet.
Caradoc conglomerate. . .
Traps
•;;::.•::'■••■■•.•;;■;•••■-
fcff;
3000 feet
^%m
4000 feet
Syenite.
If the fact be admitted, that certain beds (at May Hill and the
Malverns), " although mineralogically of the Caradoc type," contain

  • In accordance with the views of this paper, we should call Nos. 4 and 5 by
the names May Hill conglomerate and May Hill sandstone.
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Source https://www.flickr.com/photos/biodivlibrary/12511923045
Author Geological Society of London
Full title
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The Quarterly journal of the Geological Society of London.
Page ID
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34983335
Item ID
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108767 (Find related Wikimedia Commons images)
Title ID
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51125
Page numbers
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Page 222
BHL Page URL
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https://www.biodiversitylibrary.org/page/34983335
Page type
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Text
Flickr sets
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  • The Quarterly journal of the Geological Society of London. v. 9 (1853)
Flickr tags
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Flickr posted date
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14 February 2014
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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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current16:00, 20 February 2022Thumbnail for version as of 16:00, 20 February 20221,869 × 3,200 (1.03 MB)SteinsplitterBot (talk | contribs)Bot: Image rotated by 270°
23:20, 26 August 2015Thumbnail for version as of 23:20, 26 August 20153,200 × 1,869 (1.04 MB)Fæ (talk | contribs)== {{int:filedesc}} == {{BHL | title = The Quarterly journal of the Geological Society of London. | source = http://www.flickr.com/photos/biodivlibrary/12511923045 | description = 222 <br> PROCEEDINGS OF THE GEOLOGICAL SOCIETY. <br> Silurian System" in...

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