Huff, Warren D. Ordovician K-bentonites in the Argentine Precordillera: relations to Gondwana margin evolution - London Geological Society of London 1998 - pp. 107-126 ilus. - Geological Society Special Publications n.142 . Subjects--Topical Terms: BENTONITAGONDWANAPALEOGEOGRAFIA Subjects--Geographic Terms: ARGENTINAPRECORDILLERA ARGENTINA Universal Decimal Class. No.: 551.83(82)/P23|5