Hostname: page-component-78c5997874-94fs2 Total loading time: 0 Render date: 2024-11-06T06:46:43.413Z Has data issue: false hasContentIssue false

Ankerites and chalybites from the northern Pennine orefield and the north-east coalfield

Published online by Cambridge University Press:  14 March 2018

Extract

Ankerites from the Northumberland coalfield were first described, with chemical analyses, some ten years ago (Hawkes and Smythe, 1935), when it was found that examples from veins exposed on the coast near Hartley and from sludge from nearby coal-washeries showed a remarkable uniformity in composition. The operations of the collieries concerned cover an area roughly 6 × 6 miles, and range from the Beaumont to the High Main Seam. In order to ascertain whether this uniformity is maintained over a wider area, five additional samples of ankerite from veinlets in rocks of Coal Measure age, and one from partings in the Lower Carboniferous Scremerston coal have been examined. The Coal Measure rocks cut by the veinlets have been proved to contain substantial proportions of ferriferous carbonates, while for comparative purposes two examples of rocks of similar age with carbonate but unaccompanied by ankerite veinlets have been investigated. The range in composition of ankerites in the coalfield has proved to be small.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1947

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Anderson, (W.) and Smythe, (J. A.), 1942. An occurrence of millerite in the Durham Coal Measures. Geol. Mag., vol. 79, p. 220. [M.A. 9–54.]Google Scholar
Carruthers, (R. G.) and Strahan, (A.), 1923. Lead and zinc ores of Durham, Yorkshire and Derbyshire, with notes on the Isle of Man. Mem. Geol. Surv. Min. Resources, vol. 26.Google Scholar
Crook, (T.), 1919. Magnesite as raw material. Trans. Ceram. Soc., vol. 18, p. 67. [M.A. 1–15.]Google Scholar
Doelter, (C.), 1912. Handbuch der Mineralchemie. Bd. 1, Dresden, Leipzig.Google Scholar
Dunham, (K. C.), 1934. The genesis of the north Pennine ore deposits. Quart. Journ. Geol. Soc. London, vol. 90, p. 689. [M.A. 6–367.]Google Scholar
Dunham, (K. C.) 1941. Iron ore deposits of the northern Pennines. Geol. Surv. Wartime Pamphlet, no. 14. [M.A. 8–169.]Google Scholar
Finlayson, (A. M.), 1910. Problems of ore-deposition in the lead and zinc veins of Great Britain. Quart. Journ. Geol. Soc. London, vol. 66, p. 299.Google Scholar
Ford, (W. E.), 1917. Studies in the calcite group. Trans. Conn. Acad. Arts and Sci., vol. 22, p. 211. [M.A. 1–10.]Google Scholar
Fowler, (A.), 1926. The geology of Berwick-on-Tweed, Norham and Scremerston. Mem. Geol. Surv.Google Scholar
Hallimond, (A. F.), 1925. Iron ores: bedded ores of England and Wales; petrography and chemistry. Mem. Geol. Surv. Min. Resources, vol 29.Google Scholar
Hawkes, (L.) and Smythe, (J. A.), 1935. Ankerites of the Northumberland coalfield. Min. Mag., vol. 24, p. 65.Google Scholar
Hewett, (D. F.), 1928. Dolomitization and ore deposition. Econ. Geol., vol. 23, p. 821.Google Scholar
Hitchen, (C. S.), 1934. The Skiddaw granite and its residual products. Quart. Journ. Geol. Soc. London, vol. 90, p. 158.Google Scholar
Louis, (H.), 1905. Note on a mineral vein in Wearmouth Colliery. Trans. Inst. Min. Eng., vol. 22 for 1901–1902, p. 127.Google Scholar
Smythe, (J. A.), 1930. A chemical study of the Whin Sill. Trans. Nat. Hist. Soc. Northumberland, Durham, and Newcastle-upon-Tyne, n. ser., vol. 7, p. 16. [M.A. 4–398.]Google Scholar
Wager, (L. R.), 1929. Metasomatism in the Whin Sill of the north of England. Part I: Metasomatism by lead-vein solutions. Geol. Mag., vol. 66, p. 97.Google Scholar
Wallace, (W.), 1861. The laws which regulate the deposition of lead ore in veins; illustrated by an examination of the geological structure of the mining districts of Alston Moor. London.Google Scholar
Wayland, (R. G.), 1942. Composition, specific gravity and refravtive indices of rhodoerosite; rhodocrosite from Butte. Montana. Amer. Min., vol. 27, p. 614. [M.A.9-124.]Google Scholar
Winchell, (A. N.), 1933. Elements of optical mineralogy. 3rd edit., part 2, New York.Google Scholar