File:The Quarterly journal of the Geological Society of London (12895016463).jpg

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1864..
BIGSBY MISSING SEDIMENTARY FORMATIONS.
215
Fig. 9. — Section of the Coal-basin of the Saone et Loire (after
Dufrenoy and De Beaumont).
Creusot.
A BCD
A. Granite.
B. Porphyry.
C. Pudding-stone.
Coal-measures.
D D D. Coal-beds.
E. Keuper.
At Sierck, on the Moselle*, all the three members of the Trias,
considerably inclined, lie on old quartzose rocks, also inclined, but in
another direction. The Triassic strata of South Staffordshire f are
in contact with Silurian

both Carboniferous and Devonian being
missing in parts, D'Orbigny mentions a similar instance in South
America. The Upper Trias (4500 feet thick) of the eastern or
Atlantic flank of the Appalachian Mountains abuts upon the older
metamorphic rocks, and thus indicates the absence of five great
formations

.:.

The Triassic coal-field, near Bichmond in Virginia, is
superimposed on a granite newer than itself

for it is penetrated by
veins of the latter.
6. With a Permian Roof. — A few examples must suffice in evi-
dence that gaps are not uncommon between this formation and
those below it. They occur in countries very distant from each
other, and differ from those of other epochs in the interval rarely
consisting even of one whole period. They are, as far as known to
Fig. 10. — Diagram showing the general Relations of the Palosozoic
Rocks of Saxony (after Murchison and Morris).
a. Silurian.
b. Devonian.
c. Lower Carboniferous.
d. Upper Carboniferous.
e. Kothliegende.

Plant-beds.
/. Zechstein.
g. Sandschiefer.
Permian.

De Beaumont and Dufrenoy, Explication Carte G-eol. vol. ii. p. 13.
f Jukes, ' Bibliotheque Universelle de Geneve,' vol. xiii. p. 69, 1850.
j Emmons, ' Geology of North Carolina,' 1856.
VOL. XX. PART I.

Q
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Source https://www.flickr.com/photos/biodivlibrary/12895016463
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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36089458
Item ID
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111261 (Find related Wikimedia Commons images)
Title ID
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51125
Page numbers
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Page 215
BHL Page URL
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https://www.biodiversitylibrary.org/page/36089458
Page type
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Text
Flickr sets
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  • The Quarterly journal of the Geological Society of London. v. 20 (1864).
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Flickr posted date
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3 March 2014
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This file comes from the Biodiversity Heritage Library.

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