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20 feet acid adjacent Alaska andesitic artesian assay basalt basin bed rock Bering River Birch Creek bluish gray border Bull canyon carbonate CaCOs Cascade Mountains Chicken Creek coal Cold Bay composed conglomerate conspicuous Controller Bay craters Crook County Crooked River cupellation deposits depth Deschutes River district east Enochkin erosion exposed extends Fairbanks Fork formation Fortymile fossils fragments geology glaciers gold gravels Hampton Butte Harney hills Katalla Kushtaka lapilli Lava Butte limestone localities lower Magnesium carbonate Malheur miles Mineral moraines Mount Newberry mouth northeast northwest occur Oregon outcrops petroleum placer plain portion present Prineville probably pumice quarry quartz reconnaissance Rept rhyolitic ridge sandstone schists Seventymile Seward Peninsula shale sheet shore side silver slopes southeast southeastern southwest springs stream summit surface Tanana thickness tion tributaries tuff U. S. Geol U. S. GEOLOGICAL SURVEY upper valley Vanport volcanic Yukon
Page v - SCHRADER, FC , and SPENCER, AC The geology and mineral resources of a portion of the Copper River district, Alaska.
Page 67 - The petroleum is clearly a refining oil of the same general nature as the Pennsylvania petroleum. It resembles the latter in having a high proportion of the more volatile compounds and a paraffin base and in containing almost no sulphur.
Page 19 - Bureau," it will be seen that this portion of central Oregon, lying in the northern part of the extensive arid region which intervenes between the Rocky Mountains on the east and the Sierra Nevada and the Cascade Mountains on the west, is credited with a mean annual rainfall of between 10 and 20 inches.
Page 74 - SLIPS. [Mount each slip upon a separate card, placing the subject at the top of the second slip. The name of the series should not be repeated on the series card, but the additional numbers should be added, as received, to the first entry.] Bain, H[arry] Foster, 1872.
Page 149 - ... night we heard strange rumblings in the vast pile. We found the next day that these lava beds formed an impassable barrier extending unbroken for about 4 miles to the north, and at their end were again surprised to find, foaming out from underneath the giant bowlders, the clear, cold river that we had seen lose itself in the lake 15 miles and more to the south. The value of Davis Lake as a storage reservoir is not clearly shown by the above description, although it at least suggests the desirability...
Page 21 - ... seepages. Some of these are located on the banks of a small lake, which is reported to be at times covered with petroleum. The small creeks which enter Little Nitchawak River from the north have a number of seepages on their banks, in some of which oil issues directly from the rock, which is here a shale. A strong flow of gas bubbles to the surface of the water at a number of places along the lower course of Katalla River. In places this flow is so strong that it can be heard for a distance of...