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Pico de San Jose

Material name: Pico de San Jose chert
Synonyms: N/A
Material (geologic): Early Cretaceous ("Gallic", Aptian-Albian) chert

Aptian-Albian chert
Photo: John Rissetto, 2007

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Pico de San Jose
Locality: Pico de San Jose, Cantabria, Spain
Synonyms: N/A
Geographical description: Exposure on slope in mountainous terrain around 451 m asl.
Topographical map 1:25 000 60-II La Iglesia.
Geological map 1:50 000 60 Valmaseda (1978) 20-05.

Length of identified source area: approx. 800 meters.
Thickness of chert bearing layers: approx. 400 meters.
Type of source: primary.

Geographical co-ordinates: Lat. 43° 18' 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.
  coarse chert
Photo: John Rissetto, 2007
Flaky of coarse chert. size: 44 mm
Sample description: Host Rock according to the 1:50 000 map from the Instituto Geologico Y Minero de España (IGME) (Spanish - English)
C 0-2, 15-16 - Calizas con Rudistas y Orbitolinas, areniscas en la base - Limestones with Rudistas and Orbitolinas with sandstones at the base

Chert quality: low.
Form of nodules: amorphous.
Maximum dimensions of nodules: 30 cm.
Fracture pattern: conchoidal with fractures along longitudinal planes.


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