Regional stratigraphy and distribution of epigenetic stratabound celestine, fluorite, barite and Pb-Zn deposits in the MVT province of northeastern Mexico
Por:
González-Sánchez F., Camprubí A., González-Partida E., Puente-Solís R., Canet C., Centeno-García E., Atudorei V.
Publicada:
1 abr 2009
Resumen:
Northeastern Mexico hosts numerous epigenetic stratabound carbonate-hosted low-temperature hydrothermal deposits of celestine, fluorite, barite and zinc-lead, which formed by replacement of Mesozoic evaporites or carbonate rocks. Such deposits can be permissively catalogued as Mississippi Valley-type (MVT) deposits. The deposits studied in the state of Coahuila are associated with granitic and metasedimentary basement highs (horsts) marginal or central to the Mesozoic Sabinas Basin. These horsts controlled the stratigraphy of the Mesozoic basins and subsequently influenced the Laramide structural pattern. The Sabinas Basin consists of similar to 6,000-m-thick Jurassic to Cretaceous siliciclastic, carbonate and evaporitic series. The MVT deposits are mostly in Barremian and in Aptian-Albian to Cenomanian formations and likely formed from basinal brines that were mobilized during the Laramide orogeny, although earlier diagenetic replacement of evaporite layers (barite and celestine depos
Filiaciones:
González-Sánchez F.:
Univ Nacl Autonoma Mexico, Dept Geoquim, Inst Geol, Mexico City 04510, DF, Mexico
Camprubí A.:
Univ Nacl Autonoma Mexico, Dept Geoquim, Inst Geol, Mexico City 04510, DF, Mexico
González-Partida E.:
Univ Nacl Autonoma Mexico, Ctr Geociencias, Santiago De Queretaro 76230, Qro, Mexico
Puente-Solís R.:
Univ Nacl Autonoma Mexico, Programa Posgrado Ciencias Tierra, Mexico City 04510, DF, Mexico
Canet C.:
Univ Nacl Autonoma Mexico, Inst Geofis, Dept Recursos Nat, Mexico City 04510, DF, Mexico
Centeno-García E.:
Univ Nacl Autonoma Mexico, Dept Geoquim, Inst Geol, Mexico City 04510, DF, Mexico
Atudorei V.:
Department of Earth and Planetary Sciences, The University of New Mexico, Northrop Hall, Albuquerque, NM 87131, United States
|