Chapter 3: Geologic Structure and Landforms
Geologic interpretation of images begins with the identification of lineaments, “regional linear features caused by linear arrangement of regional morphological features such as streams, escarpments, and mountain ranges and tonal features that in many areas are the surface expressions of fractures or fault zones.”[i] The emphasis in this section is on geologic structures and landforms, both of which can be easily identified on air photographs and other images.
The sequence followed here is that often found in geomorphology books. Geologic structures and structurally controlled landforms are illustrated first, followed by images of mass wasting and of the results of the agents of erosion—running water, ground water, ice, wind and the sea. The meandering rivers of southern
3.104: Willow Point, West Shore of Lake Winnipeg
Willow Point 1 is a cuspate foreland projecting into
A road runs the whole length of the spit 14 and the length of the sand bar 15.
Figure 3.104: Willow Point, West Shore of Lake Winnipeg
Vertical air photograph: A17333-83
Flight height: 8,550 feet a.s.l.; lens focal length: 153.04 mm
Scale: 1:15,000 (approx.)
Date: August 5, 1961
Location: Townships 18 and 19; Range 4E
Map sheets: 1:250,000 62I Selkirk
1:50,000 62I/10 Victoria Beach