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Mirador de Llaranza

Material name: Mirador de Llaranza
Synonyms: N/A
Material (geologic): Late Cretaceous (Middle Cenomanian-Santonian) flint

Detail of flint
Photo: John Rissetto, 2007

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Mirador de Llaranza
Locality: Mirador de Llaranza, Cantabria, Spain
Synonyms: N/A
Geographical description: Exposure in coastal cliff, approx. 5 m asl.
Topographical map 1:25 000 35-I Santander.
Geological map 1:50 000 35 Santander (1976) 19-4.

Length of identified source area: approx. 750 meters.
Thickness of chert bearing layers: approx. 20 meters.
Type of source: primary.

Geographical co-ordinates: Lat. 43° 29' N
Long. 003° 43' 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.
  fine flint
Photo: John Rissetto, 2007
Flake of very fine flint.
chalcedonic material
Photo: John Rissetto, 2007
Flake of chalcedonic flint/chert.
  flint nodule
Photo: John Rissetto, 2007
Nodule of fine flint with dark core.
Sample description: Host Rock according to the 1:50 000 map from the Instituto Geologico Y Minero de España (IGME) (Spanish - English)
C 2-0, 21-24 - Margas y calizas arcillosas - Marls and argillaceous limestone

Chert quality: high.
Form of nodules: amorphous.
Maximum dimensions of nodules: 35 cm.
Fracture pattern: conchoidal.


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