Record Details
page V-43
Oregon Digital
| Field | Value |
|---|---|
| Title | page V-43 |
| Relation | Columbia River and Tributaries |
| Date | 2005-06-22 to 2005-07-21 |
| Rights | This item is in the public domain. Acknowledgement of the University of Oregon Libraries as a source is requested. |
| Type | page |
| Format | Scanned from originals using Silverfast AI 6.0 on UMAX Powerlook III flatbed scanner. Scanned images saved as 16 bit grayscale tiffs. 240.938 kb 8 bit - Gray Gamma 2.2 - greyscale Omnipage 14 used to OCR 8 bit tiffs and generate text files for full text access. 16 bit grayscale and 48>24 RGB color tiffs edited in Photoshop CS 8.0: cropped, rotated, reduced in size, levels adjusted, grayscale bit depth reduced to 8 and JPEGs created. |
| Description | features are irregular and in the most need of reclamation. Pond two is fairly flat with less than 7 feet difference in elevation. Surface features of pond three are unknown. During the flotation process, a small amount of cyanide (NaCN) was added, with other reagents, to depress the pyrite and arsenopyrite in the ore. At the time of deposition, the tailings still contained minerals which could yield iron and arsenic and a small amount of zinc, copper, and lead. Most of the minerals have... |
| Identifier | http://oregondigital.org/u?/wwdl,2795 |
