Geology and Mineral Resources of Paraguay A Reconnaissance

104 GEOLOGY AND MINERAL RESOURCES OF PARAGUAYKrieg, Hans, 1931, Wissenschaftliche Ergebnisse der DeutschenGran Chaco Expedition: Geographisehe Ubersieht undillustrierter Routenbericht, Stuttgart, Strecker und Schroder,95 p.Excellently illustrated summary of geography and naturalhistory along a route up the Rio Pilcomayo, thence circling theGran Chaco. Many details of the regimen of the Pilcomayo.Extensive bibliography.Larsen, E. S.,Jr., 1940, Petrographic province of central Montana:Geol. Soc. America Bull., v. 51, p. 887-948.Leanza, A. F., 1948, El llamado Triasico marino de Brazil,Paraguay, Uruguay, y la Argentina: Soc. Geol. Argentina,Rev., v. 3, p. 219-244.Review of literature, with conclusion that marine faunas ofBrazil, Uruguay, and Paraguay, previously considered Triassic,are of Permian age.Lisboa, A. R., 1909, Oeste de Sao Paulo, sul de Mato Grosso,Typ. do Journal do commercio, de Rodriques & Co., 172 p.,Rio de Janeiro.Good descriptions of much of the geology of Mato Grossocontiguous to northeastern Paraguay.Mather, K. F., 1922, Front ranges of the Andes between SantaCruz, Bolivia, and Embarcaci6n, Argentina: Geol. Soc.America Bull., v. 33, p. 703-764.Maury, C. J., 1929, Uma zona de Graptolitos do Llandoveryinferior no Rio Trombetas, Estado do Para, Brasil: Mon. 7,Serv. Geol. Min. Brasil.Maz6, Ricardo, 1951, Posibles recursos minerales del Paraguay:typed, in files of Dept. de Geol., Min. des Obras Publicas yCommunicaciones, Asuncion.Brief summary of reported mineral occurrences.1952, Objecto e importancia de la delimitation de losdepositos arcillosos: Rev. del Centre Paraguayo Ing., v. 1,p. 49-50, Asunci6n.Methods of prospecting for clay deposits.Milch, L., 1895, Uber Gesteine aus Paraguay: TschermaksMineralog. und Petrog. Mitt, v. 14, no. 5, p. 383-394,Vienna.Detailed petrologic description, but no analyses of rocksamples collected by A. Lindner. Mostly sediments, butincludes limburgite from Tacumbii and phonolite from Ybytimi(near Sapucay).1905, Uber die chemische Zusammensetzung einesLimburgites, eines phonolithischen Gesteines und einigerSandsteine aus Paraguay: Tschermaks Mineralog. und Petrog.Mitt., v. 24, no. 3, p. 213-226, Wien.Chemical analyses of rocks described by Milch, 1895.Niederlein, Gustav, 1885, Reisen im nordlichen Argentinien:Verhandlungen der Gesellschaft fur Erdkunde zu Berlin,v. 12, p. 238-240.Describes basalt along Rio Parand briefly.by Carnier.Not seen notedOliveira, A. I. de, and Leonardos, O. H,. 1943, Geologia doBrazil: Rio de Janeiro, Servicio de Informac.ao Agricola,Ministerio da Agricultura, 2d ed., 813 p., maps and plates.Excellent general account of geology of Brazil, with extensivebibliography.Oppenheim, Victor, 1936, Geology of Devonian areas of Paranabasin in Brazil, Uruguay, and Paraguay: Am. Assoc.Petroleum Gecl. Bull., v. 20, p. 1208-1236.No original observations on Paraguay; extensive bibliography.Page, Capt. John, 1859, La Plata, the Argentine Confederation,and Paraguay: New York, Harper and Bros., 632 p., map.Good desciiptions of geography, with a few notes on geology.1889, The Gran Chaco and its rivers: Royal Geog. Soc.Proc., v. 11, no. 3, 129-152. Not seen.Pfotenhauer, J., 1891-93, Die Missionen der Jesuiten in Paraguay:C. Bertelsmann, Guterslogh, 3 v. in 1.Few notes on geology, including data on early sources of salt.Pohlmann, Robert, 1886, Gesteine aus Paraguay: NeuesJahrbuch fur Mineralogie, Geologic und Paleontologie,Stuttgart, v. 1, p. 244-248.Detailed petrologic description of hand specimens fromnorthern Paraguay. Includes sedimentary, metamorphic andigneous rocks, but gives few localities.Prider, R. T., 1939, Some minerals from the leucite-rich rocks ofthe west Kimberly area, Western Australia: Mining Mag.(London) v. 166, p. 373-387.Describes rocks similar to the shonkinites of Mbocayaty.(See also Wade and Prider, 1941.)Ramdohr, Paul, 1950, Die Erzmineralien und ihre Verwachsungen:Akad.-Verlag, Berlin, 826 p.Contains discussion of origin of pseudobrookite (p. 735-736)possibly applicable to that in Serra Geral lavas.Reed, F. R. Cowper, 1935, Some Triassic lamellibranchs fromBrazil and Paraguay: Geol. Mag. (London), v. 72, p. 34-43.Describes Pinzonella cf. P. illusa Reed from between San Jose"and Valenzuela.Ruiz de Montoya, Padre Antonio, 1876, Arte de la lenguaGuarani, O mas bien Tupi: (Vienna), 95 p., Buenos Aires,P. E. Coni, also published in Vienna, Faesy y Frick, 100 p.Guarani-Spanish dictionary and thesaurus.lating names of places and natural features.Useful in trans­Schuster, A. N., 1929, Paraguay, Land, Volk, Geschichte, Wirtschaftsleben,und Kolonization; Stuttgart, Strecker urdSchroder, 667 p., many illustrations and maps.Fine report on human and physical geography. Containsbrief descriptions of geology (after Carnier) and of mineralindustries.Schuster, Julius, 1911, Osmundites von Sierra Villa Rica in Paraguay:Ber. der Deutsch. Botanisch. Gesell., v. 24, no. 7,p. 534-539, 4 figs., 1 tbl., Berlin.Detailed description of fossil fern and conifer specimens collectedby Carnier (1911).