. Annual Reports of the Department of the Interior for the Fiscal Year Ended June 30, 1900--Twenty-First Annual Report of the United States Geological Society. HOBBS.] RELATION OF DRAINAGE TO FAULT PLANK>. 139 characteristic a feature. The form of these channels is probably inmany cases explained by the presence of faults at the margin of theriver bottom, and by the downthrow of the included orographic block,or, which would amount to the same thing, the upthrow of its the Pomperaug Basin the channel margins in manj^ cases coincidein position with the faults which have already been
. Annual Reports of the Department of the Interior for the Fiscal Year Ended June 30, 1900--Twenty-First Annual Report of the United States Geological Society. HOBBS.] RELATION OF DRAINAGE TO FAULT PLANK>. 139 characteristic a feature. The form of these channels is probably inmany cases explained by the presence of faults at the margin of theriver bottom, and by the downthrow of the included orographic block,or, which would amount to the same thing, the upthrow of its the Pomperaug Basin the channel margins in manj^ cases coincidein position with the faults which have already been described in thelast section. It should not, however, be forgotten that revived drain-age is characterized by sharply cut channels. ZIGZAG STREAM COURSES. In some places the streams of the Pomperaug Basin have long-stretches, approximating to a uniform direction, as, for example, Nona-waug Brook, near Minortown, or the Pomperaug itself, near Pomperaugvillage. Represented upon the map of the basin, these river stretchesappear usually as nearly straight lines. Examined at the locality,however, it is found that this general direction is very frequentlymain
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