Field, laboratory, and library manual in physical geography . of deposit would youexpect to find in the wash within the canyon and on the slopesat Pomona and Ontario ? (See Exercise XXXIII.) Is the soilat the latter places fertile ? How do you know ? Describe thewash from the mouth of the canyon to the town of Claremontand the A. T. & S. F. railroad. What name is given to thesmaller, branching parts ? Account for their formation. Inwhat respects is an alluvial cone similar to a delta? In whatrespects is it different? ALLUVIAL COSES 113 Near the point where Stoddard canyon enters San Antoniocan
Field, laboratory, and library manual in physical geography . of deposit would youexpect to find in the wash within the canyon and on the slopesat Pomona and Ontario ? (See Exercise XXXIII.) Is the soilat the latter places fertile ? How do you know ? Describe thewash from the mouth of the canyon to the town of Claremontand the A. T. & S. F. railroad. What name is given to thesmaller, branching parts ? Account for their formation. Inwhat respects is an alluvial cone similar to a delta? In whatrespects is it different? ALLUVIAL COSES 113 Near the point where Stoddard canyon enters San Antoniocanyon the stream becomes intermittent, and near the mouth ofthe canyon it disappears altogether. What becomes of the water?Between Pomona and Chino a little stream rises. Where doesthe water probably come from ? Throughout this alluvial conemuch water is pumped from deep wrells and is used for irriga-tion. Where does this water come from? Determine the elevation of the bed of the stream where Bearcanyon enters San Antonio canyon. What is the fall in feet. Fig. 15. A Debris Fan at Glenwood Springs, Colorado, formed at theMouth of a Side Gorge Grand river in the foreground from this point to £he mouth of San Antonio canyon? What isthe average fall in feet per mile ? What is the average fall infeet per mile from the mouth of San Antonio canyon due southto the edge of the map? Which is the steeper slope, aboveor below the mouth of the canyon ? Name the canyons represented on the Cucamonga sheet,whose streams are building up cones. What does the author 114 PHYSICAL GEOGRAPHY MANUAL of Folio 2 say about the extent of alluvial cones in south-ern California and elsewhere? Give the conditions of slopesand climate which are favorable to the formation of alluvialcones. Fig. 15 shows a debris fan or alluvial cone formed by atributary of the Grand river, at Glenwood Springs, what angle does the slope of the fan form with thehorizontal? What, if anything, is there here which wo
Size: 1878px × 1330px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidfieldlaborat, bookyear1906
