Prospecting for Gold and Silver in North America |
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Common terms and phrases
acid andesite Archaean Aspen assay basalt bed-rock beds blue limestone bodies boulders breccia called Cambrian canyon carbonate Carboniferous carry clay color Colorado containing copper country rock cracks crater Cretaceous Cripple Creek crust crystalline crystals decomposed deposits depth diorite district dolomite eruptive rocks fault feet feldspar fissure veins folds formed fossil fragments free gold galena gangue geological glaciers gneiss gold veins gold-bearing granite gravel gray gray copper gulch hard heat hills hornblende intrusive sheets iron pyrites lava Leadville ledge lime limestone lode mass material matter metals mica minerals mines Mosquito range mountain occur outcrop oxidized Paleozoic pebbles phonolite placer planes Plate porphyry portion prospecting prospector quartz quartz veins quartzite range region rich river rusty samples San Juan sand sandstones schists seams sedimentary shales Silurian silver slates sometimes strata stratified streams sulphide surface Tertiary thick true fissure tunnel valley volcanic walls whilst zone
Bibliographic information
| Title | Prospecting for Gold and Silver in North America |
| Author | Arthur Lakes |
| Edition | 2 |
| Publisher | Colliery Engineer Company, 1896 |
| Original from | the University of Michigan |
| Digitized | May 29, 2007 |
| Length | 287 pages |
| Export Citation | BiBTeX EndNote RefMan |