Bitschene, Peter Rene The Asunción alkaline province (eastern Paraguay): geologic setting and petrogenetic aspects - Stuttgart E. Schweizerbart'sche Verlagsbuchhandlung 1989 - pp. 959-971 ilus. - Zentralblatt fur Geologie und Palaontologie . Subjects--Topical Terms: BASALTO ALCALINOGEOLOGIA REGIONALGEOQUÍMICAPETROLOGÍA Subjects--Geographic Terms: ASUNCIONPARAGUAY Universal Decimal Class. No.: P/061.3:55(8=6)/M58/1988|23