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Lyell, Charles, Sir, 1797-1875

"The Student's Elements of Geology"


Eocene Strata in the United States.
Gigantic Cetacean.
EOCENE AREAS OF THE NORTH OF EUROPE.
(FIGURE 164. Map of the principal Eocene areas of North-western Europe, showing:
Shaded dotted: Hypogene rocks and strata older than the Devonian.
Shaded horizontal lines: Eocene formations.
NB.-- the space left blank is occupied by fossiliferous formations from the
Devonian to the chalk inclusive.)
The strata next in order in the descending series are those which I term Eocene.
In the map in Figure 164, the position of several Eocene areas in the north of
Europe is pointed out. When this map was constructed I classed as the newer part
of the Eocene those Tertiary strata which have been described in the last
chapter as Lower Miocene, and to which M. Beyrich has given the name of
Oligocene. None of these occur in the London Basin, and they occupy in that of
Hampshire, as we have seen in Chapter 15, too insignificant a superficial area
to be noticed in a map on this scale. They fill a larger space in the Paris
Basin between the Seine and the Loire, and constitute also part of the northern
limits of the area of the Netherlands which are shaded in the map.


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