Bulletin - United States Geological Survey, Ausgabe 335

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Seite ii - A reconnaissance of the Cape Nome and adjacent gold fields of Seward Peninsula, Alaska, in 1900, by AH Brooks, GB Richardson, and AJ Collier. In a special publication entitled "Reconnaissances in the Cape Nome and Norton Bay regions, Alaska, in 1900,
Seite ii - No. 314, 1907, pp. 164-181. Water Supply of Nome region, Seward Peninsula, Alaska. 1906, by JC Hoyt and FF Henshaw. Water-Supply Paper No.
Seite 115 - This condition is frequent at or near seepages in these shales, but it is not known whether it is a surface condition connected with erosion or whether it indicates crushing of the rocks at a depth below the surface during the process of folding or faulting. Here, as at many other seepages, sulphur springs are associated with the oil. Another seepage was seen near the headwaters of Redwood Creek. It is reported that oil may be seen at low tide in the beach sands on the north shore of Strawberry Harbor....
Seite 112 - Yaktag6 are also reported to lie on a line having the same direction as this and practically coinciding with it in extended position. Several of the smaller groups of seepages, such as the group on Redwood Creek and at the head of Katalla Slough, and...
Seite 116 - ... and seepages are numerous, but large surface accumulations are rare. Broken shale recemented by ferruginous material was seen here as on Redwood Creek. Some seepages with considerable surface accumulation of oil were seen along the edge of the tidal flat close to the wagon road halfway between Burls Creek and the mouth of Bering River. Outcrops were absent in the immediate vicinity, but fragments of shale indicated the presence of such rock. Several seepages have been reported from Chilkat Creek....
Seite 127 - The surface .oil showings (seepages), though widespread and copious, are not conclusive evidence of the occurrence of productive oil pools. They are apparently more promising than any of the other known geologic features of the region. The only safe conclusion to be drawn from them is that they indicate the possibility of productive oil areas in the vicinity. Operators and investors who may not be familiar with local conditions will do well to be governed by the following suggestions: 1. They should...
Seite 127 - The geographic conditions are such as to cause heavy initial expense of prospecting and drilling, but admit of permanent improvements which will make these conditions much better without great engineering difficulties or excessive cost. The geology is complex and difficult to interpret and does not show definitely the relation of the occurrence of the petroleum to the stratigraphy and structure. The known facts of the local geology are unfavorable to the presence of productive bodies of oil, and...
Seite 116 - Two of them are located about a mile and a half west of Burls Creek and close to the road. The amount of oil at one of these is large. The nearest visible rock is steeply dipping conglomerate, which outcrops • a few feet away, but the oil can be seen only on the surface of the soil, the direct source not being visible. The upper part of the valley of Burls Creek contains many seepages at which the oil oozes directly from steeply dipping shales that here contain a large amount of glauconitic grains,...
Seite 122 - 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 iii - No. 259. 1905, pp. 172-185. Geology and coal resources of Cape Lisburne region, Alaska, by AJ Collier. Bulletin No.

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