ROUTE 1 WAYPOINT 1 AND ROUTE 3 WAYPOINT 18

Waypoint 1: The initial loam soils (Map route 1) (Map route 3)

Here you can find the first soft units of the sedimentary sequence that forms DS-2. This unit represents up to the first layers, that highlight the TST tract, in other words, the Transgresive tract, associated to a quick rise in the sea level which produces marine-based rocks from a relatively deep level. The first hard unit that gives a slightly greater protrusion represents the maximum flood surface (MFS). From this level on the rate of increase in the sea level decelerates being compensated with the sedimentary contribution until the high sea level tract (HST) is started.

Paleontologically speaking, in this unit, oversize ostreidae stand out, with a lower, very heavy shell that enables them to stabilize in the substrate. After the death of the organism, it is usually colonised by sponges and serpulidae. Furthermore, it is also frequent to find ammonites like Iberian priocycloceras , Tissotia Sp., Celtiberian hemitisotia , Hemitisoi turzoi and Planticeras.

Many of the fossils we find at this point are ferruginized (with a crust of rusty iron) which indicates that it has been exposed coonsiderable time, in other words, with a low sedimentary rate, particularity of deep environments.





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ROUTE 2 WAYPOINT 11

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Waypoint 11. "Tapiology" the geology and its environment   (Map Route 2) This wall has been built using different rocks of its surroundings, we can practically indicate in a clear way, where all or almost all the rocks that form it have come from. If we look in detail we see several rocks with the already classic rudists, (these tubes or circular holes in the rocks). We find here rudists of diverse origin and typology, which allows us to make a review of the regional paleontology. 1) Hippurites incisus : characterized by its irregular morphology with two very marked partitions in the shell which generates two large wrinkles in the interior space. 2) Biradiolites canalictus : rather thin in diameter and long, they stand out for not having these inner pillars, but nevertheless have a very thick and folded shell. 3) Radiolites sauvagesi : of large diameter without inner pillars, and very thick shell with different overlapping lamellae; which gives an external appearance of "
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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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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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