CADIC 02618
CENTRO AUSTRAL DE INVESTIGACIONES CIENTIFICAS
Unidad Ejecutora - UE
artículos
Título:
Olivino-lamproita del Campo de Lamproitas Ybytyruzú, Paraguay Oriental.
Autor/es:
ALONSO, R.; VLADYKIN, N.V; BITSCHENE, P.R; ACEVEDO, ROGELIO DANIEL; BAEZ PRESSER, J.
Revista:
Pyroclastic Flow, Journal of Geology
Editorial:
Geohiggins
Referencias:
Año: 2017 vol. 7 p. 1 - 15
ISSN:
0719-0565
Resumen:
In the present work is carried out the description of geology, mineral chemistry,geochemistry, and characterization of the Yzu-4 intrusion that occurs in the Ybytyruzú lamproites field,Eastern Paraguay. According to the petrography and mineral chemistry, with reinforcements of rockchemistry (major, minor and traces elements and isotopes of Sr and Nd), Yzu-4 belongs to sanidinediopside analcime, olivine lamproite exposed next to a inferred (from Landsat 4-5 and 7 satellite imagery)pipe-shaped intrusion of 900x900 meters in diameter and located less than 1500 meters from anotherintrusion of diamond- bearing olivine lamproite rich in micas (also inferred as pipe). The Ybytyruzúlamproites field lies on the deep Archon heart of Rio de la Plata craton.
