. Elementary physical geography . Fig. 95. Photograph of a fold in therocks, Quebec, Canada. 210 PHYSICAL Fig. of a fault in Arizona along a plane whichresult of the fault-ing, one side is lefthigher than the other(Figs. 96 and 97).Sometimes the faultplane is nearly ver-tical, and sometimesnearly horizontal ;but it is usuallyinclined at a highangle. The amountof movement of therocks, varies from afraction of an inch the roof would representthe dip, and the ridge-pole, or any line parallelto it, the strike. In some cases therocks break or fault, in-stead of folding (Fi
. Elementary physical geography . Fig. 95. Photograph of a fold in therocks, Quebec, Canada. 210 PHYSICAL Fig. of a fault in Arizona along a plane whichresult of the fault-ing, one side is lefthigher than the other(Figs. 96 and 97).Sometimes the faultplane is nearly ver-tical, and sometimesnearly horizontal ;but it is usuallyinclined at a highangle. The amountof movement of therocks, varies from afraction of an inch the roof would representthe dip, and the ridge-pole, or any line parallelto it, the strike. In some cases therocks break or fault, in-stead of folding (), and some folds grad-ually change to is much complex-ity in faulting, particu-larly when the breakextends across rocksthat have already beenfolded, and no more canbe done here than to de-scribe the simplest kindof fault. The rocks breakis known as the fault plane; and as a
Size: 1605px × 1557px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthortarrralphsralphstockm, bookcentury1900, bookdecade1900
