Was andere dazu sagen - Rezension schreiben
Es wurden keine Rezensionen gefunden.
adjacent Alaska appearance basalt base basin bed rock Birch Creek border Butte canyon Cascade central character coal composed considerable conspicuous contain County course covered craters Creek Crooked deep deposits depth Deschutes described direction distance district east elevation erosion evidence exposed extends fact Fairbanks feet field flows forest Fork formation Fortymile fragments Geol geology glaciers gold gravels ground head hills known Lake land lava least less limestone localities lower material miles Mount Mountains mouth nature nearly observed obtained occur Oregon origin peaks places plain portion present probably range recent reconnaissance referred region rhyolitic ridge rise River schists seen shales sheet shore shown side similar situated slopes springs stream summit supply surface Survey thickness tion tuff upper valley volcanic walls wide
Seite 90 - SCHRADER, FC , and SPENCER, AC The geology and mineral resources of a portion of the Copper River district, Alaska.
Seite 52 - 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.
Seite 14 - 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.
Seite 51 - 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.
Seite 112 - ... 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...
Seite 16 - ... 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...