Ledesma pluton that also yielded an age of ca. 343 Ma. (2) Devonian-Silurian zircon xenocrysts with scattered ages between ca. 390 and 432 Ma. (3) Middle Cambrian-Ordovician (ca. 450-511 Ma). (4) Ediacaran-Cryogenian zircon ages (ca.
Sociedad Espaqola Para el Procesamiento del Lenguaje Natural, Seville, Spain Deadline for Abstracts: 6th May 96 Contact: Grupo de Investigacisn Julietta, Departamento de Lengua Inglesa, Facultad de Filologma, Universidad de Sevilla, Palos…
Ledesma pluton that also yielded an age of ca. 343 Ma. (2) Devonian-Silurian zircon xenocrysts with scattered ages between ca. 390 and 432 Ma. (3) Middle Cambrian-Ordovician (ca. 450-511 Ma). (4) Ediacaran-Cryogenian zircon ages (ca.