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Linear features use trend and plunge instead. Plunge, or angle of plunge, is the inclination of the feature measured downward relative to horizontal. Trend is the feature's azimuth, measured in the direction of plunge. A horizontal line would have a plunge of 0°, and a vertical line would have a plunge of 90°.
Trend and plunge are used for linear features, and their symbol is a single arrow on the map. The arrow is oriented in the downgoing direction of the linear feature (the "trend") and at the end of the arrow, the number of degrees that the feature lies below the horizontal (the "plunge") is noted.
The three-dimensional orientation of a line can be described with just a plunge and trend. The rake is a useful description of a line because often (in geology) features (lines) follow along a planar surface. In these cases the rake can be used to describe the line's orientation in three dimensions relative to that planar surface.
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Sheryl Connelly is the head of Ford's Global Trends and Futuring Division, where she separates trend from fad and helps the auto maker determine what global changes will influence the market in ...
Monday Swimwear. Yes, you can wear a string bikini if you have big boobs—so long as you pick the right one. Devin Brugman and Natasha Oakley's first foray into the world of swim was their blog ...
Classic geological compass (Brunton), sideview Classic geological compass (Brunton), topview. There are a number of different specialized magnetic compasses used by geologists to measure orientation of geological structures, as they map in the field, to analyze and document the geometry of bedding planes, joints, and/or metamorphic foliations and lineations.
In a video following the initial trend with 5.3 million views, captioned “POV, you live with your best friend,” a young woman created a blissful montage of daily life with her friend—making ...