ROUTE 2 WAYPOINT 12

 Waypoint 12: Don't let the plants prevent you from seeing the reef. (Map Route 2)

The whole village of Castrojimeno is settled mostly on bio-construction. If at the northern end of the village points 3-4 and 5, we had the reef, now in its opposite we have the same.

However, if in the other points the urbanization had created ideal outcropping conditions, now we have the rocks in their most natural aspect, at this point the Radiolites Sauvagesis stand out, although we also find Hippurites and Biradiolites.

It is striking to see how these rudists, sometimes act almost like flowerpots, being small holes are filled with soil and encourage the seeds of plants to germinate; the problem is that this favors the erosion of fossils.





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RUTA 1 PUNTO 1 Y RUTA 3 PUNTO 18

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Punto 1: Las Margas iniciales  (Plano Ruta 1)   (Plano Ruta 3) En este punto se observa la primera unidad blanda de la secuencia sedimentaria que forma DS-2. Esta unidad representa  hasta los primeros estratos que dan cierto resalte al cortejo TST, es decir Transgresivo, asociado a una rápida subida del nivel del mar lo que da una rocas de origen marino relativamente profundo. La primera unidad dura que da un ligero saliente mayor representa la superficie de máxima inundación (MFS). A partir de este nivel la tasa de subida del nivel del mar se desacelera haciendo que se vea compensado por el aporte de sedimentos hasta que inicia el cortejo de alto nivel del mar (HST). Paleontológicamente en esta unidad destacan unos ostreidos de gran tamaño, con una valva inferior muy pesada que le permite estabilizarse en el sustrato. Tras la muerte del organismo suele ser colonizado por esponjas y Serpúlidos. También es frecuente encontrar Ammonites como Prionocycloceras iberiense , Tissotia Sp. ,
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ROUTE 3 WAYPOINT 17

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Waypoint 17: Ochre Dolomites (Route 3 Map) At this point it is possible to find the ochre dolomites seen at point 8 again, although the quality of the outcrop is somewhat worse. We can see how it is made up of red dolomites formed by small oolites. All of them are associated with the moment when the sea level began to rise, but still with a low water level.
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ROUTE 3 WAYPOINT 8

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Waypoint 8: Ochre Dolomites (Route 3 Map) From this point we can see a small farm with roe deer, but the presence of a unit of ochre dolomites is particularly noteworthy from a geological point of view. The relevance of this unit is that it marks the beginning of the stratigraphic sequence that contains the main geological elements of interest in the municipality. This unit marks a period of low sea level with almost aerial exposure of the sediment, which generates oxidation and gives these ochre colours.
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