Publication: Edad y origen de la fluorita del yacimiento de la Nueva
(Cabalango, Córdoba, Argentina) en base a geoquímica de
isótopos radiogénicos (Nd y Sr)
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Publication Date
1996
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Sociedad Geológica de España
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Abstract
The fluorite mineralization from the La Nueva Mine, has a Sm-Nd age of 130 ± 19 Ma, and thus must
be related to the Lower Cretaceous late-Gondwanic extensional and magmatic event that affected the
Sierras Pampeanas Basement of Argentina. Hydrothermal fluids involved in the formation of fluorite
were probably derived by mixing of two fluids, an ascending high 87Sr/86Sr one, probably equilibrated
with basement metamorphics, as suggested by the very negative ENd(130) values, and a second, "descending",
with a low 87Sr/86Sr value.