Geography Reference
In-Depth Information
60˚
60˚
40˚
40˚
20˚
20˚
PACIFIC "RING OF FIRE"
0˚
0˚
20˚
20˚
40˚
40˚
0
2500
5000 Kilometers
Active volcano
Earthquake origin
0
2000
4000 Miles
80˚
100˚
120˚
140˚
160˚
180˚
160˚
140˚
120˚
100˚
80˚
60˚
40˚
20˚
0˚
20˚
Figure 13.5
Recent Earthquakes and Volcanic Eruptions.
© H. J. de Blij, P. O. Muller, and John Wiley & Sons, Inc.
EXTENT OF
NORTHERN HEMISPHERE
GLACIATION DURING
THE PLEISTOCENE
Land areas covered
by glaciers
Verkhoyansk
Omsk
Anadyr
RUSSIA
Nome
ALASKA
Volgograd
Fairbanks
Present-day glaciers
NOR
T
H
POLE
Moscow
Kharkiv
FINLAND
80
Seattle
SWEDEN
POLAND
NORWAY
GREENLAND
Spokane
CANADA
DEN.
GERMANY
NETH.
Great Falls
UNITED
KINGDOM
ITALY
ICELAND
Salt Lake
City
60
London
Bismarck
FRANCE
IRELAND
Denver
UNITED
Omaha
SPAIN
STATES
St. Louis
40
AFRICA
Pittsburgh
Cincinnati
New York
0
1000
2000
3000 Kilometers
0
1000
2000 Miles
Figure 13.6
Extent of Northern Hemisphere Glaciation.
During the Late Pleistocene's Wisconsinan
Glaciation, glaciers covered northern North America and Eurasia. The evidence on which this
map is based includes glacial deposits and marks on bedrock cut by glaciers.
© H. J. de Blij, P. O. Muller,
and John Wiley & Sons, Inc.
441
