 | | Journal (issue) | | RESIDUES Containing GOLD, SILVER, PLATINUM, COPPER, TIN, ZINC, LEAD REFRACTORY GOLD CONCE'NTRATES etc. ...per cent. in the average annual price of metallic tin, as a result of which the Malayan production declined...together with its enhanced price offset the fall in tin by as much as £2 million; in Sierra Leone (£0·6 million);...Potashfelspars, Kenya-(argon method 22 ) (a) 1 mile north of Kinyiki Hill apparent (b) 1 mile south of Tsavo...a pegmatite in biotite-schist at Tura, 30 miles north of Nanyuki, 23 is the youngest mineral so far dated |  | | Report (issue) | | thousand km in length is less than 2 per cent for North America (Press and Ewing, 1952), Asia (Bath, 1954)...Ewing, M. (1952), Two slow surface waves across North America: Seismol. Soc. America, Bull., v. 43, p...supporting such an aceretionary outward growth of North America. Though such a growth may have some statistical...designated within 100 miles of the Pacific Coast of North America. There is real doubt that the age of the...Willmore, P. L. (1949), Seismic experiments on the North German explosions, 1946 to 1947: Phil. Soc. London |
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