TY  - GEN
AU  - AceÃ±olaza,Florencio G.
AU  - Gonzalez,O.E.
ED  - Instituto de GeologÃ­a y MinerÃ­a
TI  - El ordovÃ­cico de la zona de Arroyo VolcÃ¡n, en la sierra de Sta.BÃ¡rbara, prov. de Jujuy
KW  - EstratigrafÃ­a
KW  - OrdovÃ­cico
KW  - Arroyo VolcÃ¡n
KW  - Jujuy
KW  - Sierra Santa BÃ¡rbara
KW  - ArtÃ­culo
N1  - Relevamiento: 1977
N2  - This paper describes stratigraphical and paleontological characteriste at Ordovician auteroping bed in Arroyo VolcÃ¡n Ã¡rea, in the Jujuy province.- This section at VolcÃ¡n Group is refered, and tickness is 2250 m, and is formed by shales and sandstones. The fauna are composed by Geragnostus (Micragnostus) sp. Parabolinopsis mariana Hoek, Saltaspis cf S. steinmanni, Parabolinella argentinensis, Triarthrus tetragonadis, Angelina kayseri, Nonorthis grandis,Bucania eyrtohypha, Skolithos sp. and Cruziana furcÃ­fera
ER  -