File:Sluicing in the Tanana District, Alaska, circa 1904 (AL+CA 6010).jpg
Sluicing_in_the_Tanana_District,_Alaska,_circa_1904_(AL+CA_6010).jpg (768 × 550 pixels, file size: 84 KB, MIME type: image/jpeg)
Captions
Summary
[edit]English: Sluicing in the Tanana District, Alaska, circa 1904 ( ) | ||||||||||||||||||||||||
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Photographer |
Unknown authorUnknown author |
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Title |
English: Sluicing in the Tanana District, Alaska, circa 1904 |
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Description |
English: Caption on image: Sluicing in the Tanana District. PH Coll 413.Album 2.28 A sluice box is essentially a man made channel with riffles set in the bottom. The riffles are designed to create dead zones in the current to allow gold to drop out of suspension. The box is placed in the stream to channel water flow. Gold-bearing material is placed at the top of the box. The material is carried by the current through the volt where gold and other dense material settles out behind the riffles. Less dense material flows out of the box as tailings.
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Depicted place | Alaska | |||||||||||||||||||||||
Date |
circa 1904 date QS:P571,+1904-00-00T00:00:00Z/9,P1480,Q5727902 |
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Medium |
English: Silver gelatin; b&w |
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Dimensions |
height: 6 in (15.2 cm); width: 8 in (20.3 cm) dimensions QS:P2048,6U218593 dimensions QS:P2049,8U218593 |
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Collection |
institution QS:P195,Q219563 |
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Permission (Reusing this file) |
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Order Number InfoField | AWC6731 |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 19:05, 30 March 2019 | 768 × 550 (84 KB) | BMacZeroBot (talk | contribs) | (BOT) batch upload |
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