. 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. Fig. twig-likebranching of streamlets—thetype produced in homogene-ous rock material when unin-fluenced by geological struc-ture ]) —Streamlet brauchiiigsof the abnormal typo found in the area in and about the IomperaugValley, a and ), controlled by two sets or pairs of fault planes. 6 and c, streamletspreponderantly controlled by a single series of parallel planes; </,/, and A, by a nearly rectan
. 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. Fig. twig-likebranching of streamlets—thetype produced in homogene-ous rock material when unin-fluenced by geological struc-ture ]) —Streamlet brauchiiigsof the abnormal typo found in the area in and about the IomperaugValley, a and ), controlled by two sets or pairs of fault planes. 6 and c, streamletspreponderantly controlled by a single series of parallel planes; </,/, and A, by a nearly of fault planes, e and g, streamlets indicating that neighboring streamlet branchings havebeen controlled by the same fault plane. The side streamlets of tj indicate control by a secondseries of faults. stage is reached a ramifying .system of Inanching tributaries, thearms of which in the primary, secondary, tertiary, or higher ordersmeet their respective trunk streams at acute angles, which aredetermined by the graditMit of the original erosion plane and l)y the 146 NEWARK SYSTEM OF POMPERAUG VALLEY, CONN. resistance of the rock material to erosion. The streamlets at theheadwaters of a stream by their junction with one another willtherefore under normal conditions produce a twig-like
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Keywords: ., bookauthorunitedst, bookcentury1900, bookdecade1900, bookyear1901
