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Islares Road Cut

Material name: Islares Road Cut
Synonyms: N/A
Material (geologic): Early Cretaceous (Upper to Middle Albian) flint/chert

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Islares Road Cut
Locality: Islares Road Cut, Cantabria
Synonyms: N/A
Geographical description: Exposure at the coast near Islares around 72 m asl.
Topographical map 1:25 000 36-IV Castro Urdiales.
Geological map 1:50 000 36 Castro Urdiales (1982) 20-04.

Length of identified source area: approx. 40 meters.
Thickness of chert bearing layers: approx. 20 meters.
Type of source: primary.

Geographical co-ordinates: Lat. 43° 24' N
Long. 003° 17' W
(Mapdatum WGS 84)
Co-ordinate precision: The coordinates are given to the nearest minute. If you need more detailed information about this location, please contact the author.
Other information: Exposure near Islares
Photo: John Rissetto, 2007.
  Vein of low-grade chert
Photo: John Rissetto, 2007.
Sample description: Host Rock according to the 1:50 000 map from the Instituto Geologico Y Minero de España (IGME) (Spanish - English)
C 23-16 - Calizas arcillosas con espiculas - Limestone with clay and spicules

Chert quality: low.
Form of nodules: amorphous.
Maximum dimensions of nodules: 15 cm.
Fracture pattern: conchoidal with fractures along longitudinal planes.


Last modified on:
December 13, 2007
Contents primarily by:
John Rissetto
Comments to: