File:Special reports on the mineral resources of Great Britain (1915) (14782607202).jpg

Identifier: specialreportson25geol (find matches)
Title: Special reports on the mineral resources of Great Britain
Year: 1915 (1910s)
Authors: Geological Survey of Great Britain
Subjects: Mines and mineral resources
Publisher: London, Printed under authority of H. M. Stationery Off., by J. Truscott and son, ltd.
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
Geol. Surv., 1888. The following occurrences of galena and blende within thearea are mentioned on p. 33 of the Memoir. In the Cheviot Lavas, on the north side of the Cheviots,* in the burn a quarter of a mile S.S.W. of Langlee, there is astrong vein with calcite- and quartz-breccias running slightlyE. of N. Within them are strings of the compact greencarbonate of copper (malachite), varying in thickness from one-tenth to half an inch (9). On the south side of the Cheviots a vein consisting of^ various ribs from 1 to 4 ins. thick, composed of calcite mixedwith angular pieces of porphyrite, &c., and here and therespotted with small crystals of galena and iron pyrites. Thiswas seen in a craggy glen (Ravens Crag) on the south side ofAUerhope Burn, a little over ; mile above its foot (10); also i Ibid., Yol. III., 1852, p. 100. 2 The Natural History and Antiquities of Northumberland, &c., 1769,Yol. I., p. 121. Special Reports on Mineral Resources,Vol.XXV.( Mem.Gaol. Surv.) Plate 4
Text Appearing After Image:
CARBONIFEROUS r UPPER LOWER OLD REDSANDSTONE SILURIAN COAL MEASURES3-Z:-AND_3-^MILLSTONE GRIT BERNICIAN ; . TUEDIAN / ERUPTIVE -^^ VAND -\INTRUSIVE ROCK llllllllllilllllllllSLATES lllilllliliillllllll .. .. MILES. lO Area North of the Roman Wall showing Tiviaps andLocalities referred to in the text. C&R.LT? 746 I ISO S 3/ .4I.750.223. AREA NORTH OF THE ROMAN WALL. 15 a similar vein (direction uncertain), ;- mile N.N.E. of Ravens A wide vein contains small specimens of galena associatedwith calcite, south of Yearning Hall (12). In the Silurian Inlier some strings of blende occur in theshales and greywacke (14). Barytes is mentioned as not uncommon near the south edgeof the map, but never occurring in large quantity. Sheet 108 S.E. (8) The Geologtj of the Country aroundOtterhurn and Elsdon, Mem. Geol. Surv., 1887. It appears from the Memoir (p. 124) that attempts to findlead-ore in workable quantities have failed. Mention, however^is made of strings of calcite carrying some galena i

Note About Images