File:Bulletin (1905) (14777235284).jpg

English:
Hot salino-sulphur water flowing from the tunnel of Elgin Mine (a mercury mine), at head of Sulphur Creek, Colusa County, California, USA

Identifier: bulletin78cali (find matches)
Title: Bulletin
Year: 1905 (1900s)
Authors: California. Division of Mines and Geology California. State Mining Bureau. Bulletin
Subjects: Mines and mineral resources Geology
Publisher: San Francisco (etc.)

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ature is 138° F., and the odors of both sulphuretted hydrogenand ammonia are noticeable. It is strongly saline and is said to carryabout 2000 grains of mineral matter per gallon. There is a consider-able deposit of flour sulphur along the edges of the stream, as shownby the photograph. Higher up near the top of the ridge there isanother similar spring, temperature 152° F., Avhich also has a strongflow. The difficulties of mining here due to the hot Avaters could probablybe minimized (if not entirely obviated) by driving a drainage adit See D. 32, ante. QUICKSILVER RESOURCES. 37 from the creek level, as the present lower tunnel is 500 feet above theretorts, as already noted. It is stated that such is the present inten-tion. The ledge matter is a black to white opaline rock (the blackresembling- obsidian) in an altered tuff, with cinnabar and an abund-ance of native sulphur crystals. In fact, so highly impregnated areparts of the formation here with sulphur (resembling the famous Sul-
Text Appearing After Image:
Photo No. 2. Hot salino-sulphur water flowing frorri lunnel of Elgin mine,at head of Sulphur Creek, Colusa County. phur Bank mine in Lake County), that in the early history of theElgin attempts were made to produce sulphur commercially by dis-tillation. The mine is equipped with a Fitzgerald retort furnace, anda partly dismantled mill containing a jj^o Dodge crusher, 8 Coloradobumping tables, and one Wilfley table. Concentration was tried dur- 38 CALIFORNIA STATE MINING BUREAU. ing the operations of 1908-1909. Many of the old dumps are said toshow assays of 0.3%-0.4% mercury. Bibliography: Cal. State Min. Bur., Reports VI, Pt. 1, p. 136;XI, p. 182; XII, p. 359; XIII, p. 594; XIV, pp. 182-184, 188,189, 196; Chapter rep. bien. period, 1913-1914, pp. 10-12, 16,17, 24; Bull. 27, p. 43. U. S. G. S., Min. Res. 1907, Pt. I, p.679; 1908, Pt. I, p. 685; 1909, Pt. I, p. 552. Mm. Res. W. ofRocky Mts., 1875, p. 14; 1876, p. 20. Empire-Central Groups. Empire Consolidated Quicksilver MiningCompany,

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