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typical lineation pattern involving a high concentration of
lineaments and a large number of small lakes. Many of the
lineaments that can be detected in winter disappear in the
summer scene (G). A second group of rock types can be recog
nized in the middle part of the image (S). These are sedimentary
rocks, which can be identified mainly by the predominance of
relatively smooth surfaces with only large lineament patterns.
The volcanic and metavolcanic rocks are characterized by the
commonly curved, rather uniformly developed, elongated and
parallel patterns (V) . There are many lineaments in the area
representing faults, joints, foliations, beddings or dykes.
Some of these lineaments have not hitherto been discerned to
their full extent. For example, the lineament in the middle of
the image (L) has been mapped as only 30 km. long, although it
extends over 90 km. Segments of a terminal moraine (TM) in the
north half part of the image can be identified by the evidence
of very smooth surface. Light snow cover enhances not only the
relief, but also dramatically enhances damage in forest-covered
areas. The smoke pollution damage (SP) in the Sudbury area,
caused by the mining industry, and a tornado damage (T) 45 km.
long, can be recognized and mapped accurately.
Figure 2 illustrates a portion of central Australia.
Almost all of the Macdonnell Range is covered by a single image.
The synoptic view of ERTS imagery allows the study of large
synclines and anticlines in their entirety. Neither textbooks
of geomorphology nor a good instructor could explain or teach
a series of foldings as well as this image shows them. In the
eroded upper parts of the anticlines, the sedimentary rocks
can be easily mapped, showing their different thickness.
The large synclines with thick sedimentary rock types provide
a good example of drainage patterns which can develop in a
homogeneous rock type. Some small foldings can be observed
in the Amadeus Trough, between Lake Amadeus (lower south-west
corner) and the Macdonnell Range, which are covered with sand
and sand dunes.
Figure 3 shows a large portion of Altiplano in Bolivia.
The folded mountain range of Tertiary rocks on the Altiplano
can be distinguished easily, stretching between the volcanic
terrain of the Cordillera Occidental and the south part of
the Cordillera Real. This image and the consecutive images
southwards (1010-14035; 1010-14042) offer scientists an excel
lent opportunity to study volcanos and their effects on sur
rounding areas. The erosion in the volcanic tuff and lavas is
demonstrated here dramatically. The Rio Desaguadero, which
originally connected Lake Titicaca to Lake Poopo, has apparently
dried up from the junction of the Rio de Mauri, which has
thereby become the upper basin of the Rio Desaguadero. If this
is not a seasonal phenomenon, the course of the Rio Desaguadero
