The sketch of the fault exposed along the Barranquilla-Cartagena highway was presented simply as an interesting example of faulting cutting diagonally down through the strata in the upper part of its course and then curving to follow the bedding planes in the lower part of its course. The strata are highly tilted.
The use of the term “initiated” had reference only to the fact that in a series of alternating sandstones and shales, it must be the relatively competent sandstones rather than the incompetent shales which transmit stresses adequate to cause shearing of the sandstones. In that sense the portion...
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