Record Details
page 306
Oregon Digital
| Field | Value |
|---|---|
| Title | page 306 |
| Relation | Columbia River |
| Date | 2005-02-22 to 2005-04-11 |
| 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. 333.147 kb 8 bit - Gray Gamma 2.2 - greyscale Omnipage 14 used to OCR 8 bit grayscale tiffs and generate text files for full text access. 16 bit grayscale tiffs edited in Photoshop 6.0: cropped, rotated, reduced in size, levels adjusted, bit depth reduced to 8 and JPEGs created. |
| Description | deposits near Molalla, Clackamas County, and Cottage Grove, Lane County. Sands of the Columbia delta and the present and ancient beaches of Oregon contain heavy minerals—magnetite, titaniferous iron, ilmenite, chromite, garnet, sircon, and others. In places they have been concentrated by the waves into deposits of "black sand" which present opportunities for development where low-cost operations are possible. Separative processes for the heavy sands carrying chromite have been worked... |
| Identifier | http://oregondigital.org/u?/wwdl,1604 |
