Abstract
The geomorphology of two rañas and a specimen soil profile on each have been studied in the Province of Guadalajara, Central Spain. The rañas were first delineated on an aerial photograph, then examined in the field for further identification and for the preparation of topographic profiles. Two soil profiles were described and sampled by horizons. Analyses were made of the samples for particle size distribution, pH, cation exchange relations and organic matter plus some observations on mineralogy of clay and fine sand fractions. Results of the study support earlier suggestions that the younger rañ asurface (S-1) is of Donau age (Middle Villafranchian) but indicate that the second (S-2) should be assigned to the Middle-Upper Pliocene (Lower Villafranchian). The soil profiles were found to be an Alfisol on the younger and an Ultisol on the older raña which is consistent with a greater age for the latter.
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