Congressional Serial Set Volume 5755

Congressional Serial Set Volume 5755

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1911 edition. Excerpt: ...done a short distance below the junction of Spruce and Beaton creeks. The gravels appeared to be of local origin, and no foreign material was noted. They were, as a rule, coarse, and showed but a small amount of water rounding. Many of the fragments were a foot in length. The larger pieces were usually flat and shingly. From the physical characters the gravels appear to be similar to ordinary river wash that has not been transported far. Although the gravels are of local origin--that is, are derived from the basin drained by the present creek--they are formed of pebbles from a great variety of rocks. The most common rock is schist, but greenstone bowlders are numerous. Black graphitic slate fragments and limestones are practically wanting. The gold is reported to have been found on a clay layer resting on bed rock. The character, form, and distribution of the gold won from this ground was not determined, but its amount is believed to have been rather small. AMERICAN CREEK AND TRIBUTARIES. Heading between Iron Creek on the west and the tributaries of the Casadepaga on the south and east, American Creek flows north and then makes an abrupt bend to the east, and finally joins Niukluk River a short distance upstream from the mouth of the Casadepaga. That this has not always been the course of the stream has been explained on pages 46-47. The placers of this stream all occur above the point of this diversion. All the headward portion is in the hilly country where outcrops abound, but the influence of the conditions that helped to produce the gravel plain are to be noted, even in this part of the basin, in the presence of waterworn gravels and angular fragments derived from foreign drainage basins up to an elevation of 800 feet, or well above the...show more

Product details

  • Paperback | 234 pages
  • 189 x 246 x 12mm | 426g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236499220
  • 9781236499226