TIN 



651 



by the magma or that tin deposits are formed by 

 circulating meteoric waters which set up a circula- 

 tion cell about the intrusive, leaching metals from 

 the surrounding rocks, transferring them in or 

 alongside the intrusive and then redepositing them 

 as the economic tin deposits. If such a mode of 

 origin for tin deposits is to be seriously entertained, 

 first must come a valid answer as to why tin-rich 

 syenites, or other alkalic rocks which often rise 

 through continental crust similar to the tin granites, 

 do not have associated tin deposits. Research on this 

 problem is much needed. 



REFERENCES CITED 



Ahlfeld, Friedrich, 1936, The Bolivian tin belt: Econ. 

 Geology, v. 31, no. 1, p. 48-72. 



1958, Zinn und Wolfram, pt. 2 of Die metallischen 



RohstoflFe: Stuttgart, Ferdinand Enke, 212 p. 



Beus, A. A., 1969, Geochemical criteria for assessment of 

 the mineral potential of igneous rock series during re- 

 connaissance exploration: Colorado School Mines Quart., 

 V. 64, no. 1, p. 67-74. 



Borchert, Hermann, and Dybek, Josef, 1960, Zur Geochemie 

 des Zinns: Chemie der Erde, v. 20, p. 137-154. 



Brazil Divisao de Fomento da ProduQao Mineral, 1964, 

 Pesquisa de cassiterita no Territorio Federal de 

 Rondonia: Brazil Div. Fomento Produgao Mineral 

 Avulso 88, 61 p. 



Brundin, N. H., 1969, Some experiences in geochemical and 

 heavy mineral prospecting: Colorado School Mines 

 Quart., V. 64, no. 1, p. 89-94. 



Butler, J. R., 1953, The geochemistry and mineralogy of rock 

 weathering: (1) The Lizard area, Cornwall: Geochim. 

 et Cosmochim. Acta, v. 4, p. 157-178. 



Desborough, G. A., and Sainsbury, C. L., 1970, Cassiterite 

 as an exsolution product in magnetite. Lost River tin 

 mine, Alaska: Econ. Geology, v. 65, p. 1004-1007. 



Dines, H. G., 1956, The metalliferous mining region of south- 

 west England : Great Britain Geol. Survey Mem., v. 1, 

 508 p. 



El Sharkawi, N. A. H., and Dearman, W. R., 1966, Tin- 

 bearing skarns from the northwest border of the Dart- 

 moor granite, Devonshire, England : Econ. Geology, v. 

 61, no. 2, p. 362-369. 



Goldschmidt, V. M., and Peters, CI., 1933, Zur Kenntnis der 

 Troilit-Knollen der Meteoriten, ein Beitrag zur Geo- 

 chemie von Chrom, Nickel und Zinn [Note on the com- 

 position of troilite nodules of meteorites and its beai-- 

 ing on the distribution of chromium, nickel, and tin in 

 the earth]: Akad. Wiss. Gottingen Nachr., Math.-Phys. 

 KL, no. 3, p. 278-287. 



Heindl, R. A., 1970, Tin, in Mineral facts and problems : U.S. 

 Bur. Mines Bull. 650, p. 759-771. 



Hosking, K. F. G., 1965, The search for tin: Mining Mag., 

 v. 113, no. 4, p. 261-273. 



1967, The relationship between primary deposits [of 



tinj and granitic rocks — Internat. Tin Council, First 

 Technical Conference on Tin, Haymarket House, 28 



Haymarket, London : Wijland and Leiteritz p. 267- 

 311. 



1969, The nature of the primary tin ores of south- 

 west of England: International Tin Council, Second 

 Technical Conference on Tin, Haymarket House, 28 

 Haymarket, London. 



1972, Primary tin mineralization of west Malaysia; 



Regional conference on the geology of southeast Asia, 



in Harte, N. S., ed.. Abstracts of papers: Geol. Soc. 



Malaysia, annex to Newsletter No. 34, p. 24-28. 

 International Tin Council, 1968, A technical conference on 



tin, V. 1, 2, p. 1-641. 

 1969, A second technical conference on tin, v. 1-3, p. 



1-1258. 

 Kelly, W. C, and Turneaure, F. S., 1970, Mineralogy, 



paragenesis and geothemiometry of the tin and tung- 

 sten deposits of the eastern Andes, Bolivia: Econ. 



Geology, v. 65, no. 6, p. 609-680. 

 Knopf, Adolph, 1908, Geology of the Seward Peninsula tin 



deposits, Alaska: U.S. Geol. Survey Bull. 358, 71 p. 

 Lange, N. A., 1961, Handbook of chemistry [10th ed.] : New 



York, McGraw-Hill Book Co., 1969 p. 

 Onishi, Hiroshi, and Sandell, E. B., 1957, Meteoritic and 



terrestrial abundance of tin: Geochim. et Cosmochim. 



Acta, V. 12, no. 3, p. 262-270. 

 Reed, B. L., and Elliot, R. L., 1970, Reconnaissance geologic 



map, analyses of bedrock and stream sediment samples, 



and an aeromagnetic map of parts of southern Alaska 



Range: U.S. Geol. Survey open-file report, 145 p. 

 Robertson, W. A., 1965, Report on the world tin position 



with projections for 1965 and 1970: London, Internat. 



Tin Council, 160 p. 

 Sainsbury, C. L., 1964a, Association of beryllium with tin 



deposits rich in fluorite: Econ. Geology, v. 59, no. 5, 



p. 920-926. 

 1964b, Geology of the Lost River mine area, Alaska: 



U.S. Geol. Survey Bull. 1129, 80 p. 



1969, Tin resources of the world : U.S. Geol. Survey 



Bull. 1301, 55 p. 



Sainsbury, C. L., Hamilton, J. C, and Huff'man, Claude, Jr., 

 1968, Geochemical cycle of selected trace elements in the 

 tin-tungsten-beryllium district, western Seward Penin- 

 sula, Alaska: U.S. Geol. Survey Bull. 1242-F, p. Fl- 

 F42. 



Sainsbury, C. L., Hudson, T. L., Kachadoorian, Reuben, and 

 Richards, Thomas, 1970, Geology, mineral deposits, and 

 geochemical and radiometric anomalies. Serpentine Hot 

 Springs area, Seward Peninsula, Alaska: U.S. Geol. 

 Survey Bull. 1312-H, 19 p. 



Shelton, J. E., 1965, Tin: U.S. Bur. Mines Minerals Year- 

 book, 1964, v. 1, p. 1057-1073. 



Stemprok, Miroslav, 1967, Genetische Probleme der Zinn- 

 Wolfram-Vererzung im Erzgebirge: Mineralium De- 

 posita 2, p. 102-118. 



Stemprok, Miroslav, and Sulcek, Zdenek, 1969, Geochemical 

 profile through an ore-bearing lithium granite: Econ. 

 Geology, v. 64, no. 4, p. 395-404. 



Varlamoff, Nicolas, 1969, The bearing of tin minerals and 

 ores in the weathering zone and the possibility of geo- 

 chemical exploration for tin : Colorado School Mines 

 Quart., V. 64, no. 1, p. 479-495. 



