. Report of the geological exploration of the fortieth parallel . %, 1^ 4^ f-. vj —,> ^ A r^\ it 1 ^Ai ( I QUATEENARY. 529 of calcareous precipitates and river sediment in the beds of the presentshrunken lakes, the disintegration of mountain tops and formation ofangular, high-mountain ddbris, and the few rare instances of true oro-graphical action, in which the solid rock foundations of the country areabsolutely faulted, the most conspicuous example of the latter being thegreat fault described by Prof. J. D. Whitney* in his account of the OwensValley earthquake of 1872. • Overland Monthly f
. Report of the geological exploration of the fortieth parallel . %, 1^ 4^ f-. vj —,> ^ A r^\ it 1 ^Ai ( I QUATEENARY. 529 of calcareous precipitates and river sediment in the beds of the presentshrunken lakes, the disintegration of mountain tops and formation ofangular, high-mountain ddbris, and the few rare instances of true oro-graphical action, in which the solid rock foundations of the country areabsolutely faulted, the most conspicuous example of the latter being thegreat fault described by Prof. J. D. Whitney* in his account of the OwensValley earthquake of 1872. • Overland Monthly for August and September, CHAPTER VI. RESUME OF STEATIGRAPHICAL GEOLOGY. It is the purpose of this chapter to present in the briefest possiblemanner the leading outlines of stratigraphical geology in the area of theFortieth Parallel. In the foregoing chapters I have given the readera summary of such facts as seemed to be necessary to a general compre-hension of the sequences and subdivisions of the sedimentary seems appropriate that the enormous devel
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