Latitud 33°56’34.00”S Longitud 4’43.99” O
Comuna Rapel V Región Chile
Valor principal del Geositio
Geológico – Mineralógico - Petrológico - Morfológico – Estructural - Escénico
On one of the southern flanks of the Rapel River, a sandwiched mat of barnacles outcrops on top of its basement tonalite rocks (383 Ma – Devonian) and lies underneath a 150 meters of marine fossiliferous sediments (Darwin, 1846. Figure 1).
The buried in situ mat of Balanus sp. suggests a fast input of cross bedded turbidity currents (Figure 2), that suffocated intertidal living organisms attached to the once then rocky shoals.
This location is being proposed as a National Geo-Heritage site due to its scenic, morphological, mineralogical (orthoclase pegmatite) and fossiliferous implications.
Publicaciones que lo incluyen
DARWIN, C., 1846, Geological Observations on South America: Being the Third Part of the Geology of
the Voyage of the Beagle, Under the Command of Capt. Fitzroy, R.N. During the Years 1832
to 1836: Smith, Elder & Co., London, 279 p.
TAVERA, J., 1979, Estratigrafia y paleontología de la Formación Navidad, Provincia de Colchagua, Chile
(lat. 30_50_–34_S): Museo Nacional de Historia Natural, Chile, Boletín, v. 36, p. 1–176.
VALENZUELA, E. 1992. Desplazamientos tectónicos y eustáticos de la costa central de Chile
durante el Neógeno. Departamento de Geología, Facultad de Ciencias Físicas y Matemáticas,
Universidad de Chile. Comunicaciones N° 43 p. 77-88.
Nombre y dirección del proponente
John Caruana L.
johncaruana@vtr.net
Francisco de Encina 6078
Santiago
Eduardo Valenzuela Ayala
Eduvalen265@gmail.com
La Colonia 265 Maipú
