This paper reports the preliminary results of the mineralogical characterization of soils from the Chancay River Valley, Lambayeque, by X ray diffractometry (XRD) and transmission Mössbauer spectroscopy (TMS). The studied soil sample, SI53, belongs to one of the two horizons of a selected soil profile from the area of Sialupe, located in the Chancay River Valley. The XRD allowed the identification of crystalline mineralogical phases in the such as found sample, at a depth of 30 cm, such as quartz, montmorillonite, clinochlore, amphibole and albite; these same minerals, except amphibole, appear also in its corresponding clay fraction. The TMS allowed the identification , in the such as found sample, of a sextet assigned to hematite and a central doublet that can be assigned to an iron oxide in the super paramagnetic state or to kaolinite; the other doublets are assigned to montmorillonit...

We report our results on compositional characterization of a ceramic sample from the site of Huacramarca, located in the Ancash region (Peruvian North-Central Highlands). ese results are based don XRD, XRF AND Mössbauer Espectroscopy analyses. Previous identication of compositional variability (based on macroscopical observations) suggest a pattern between dierent kinds of tempers and clay sources. Such patterns are strongly correlated with the variability identied through the outlined techniques, which allowed to go further and consider that alternative pottery-making processes were responsible for the Huacramarca assemblage. is suggests the possibility of dierent groups of people co-habiting in the settlement during the early part of the Late Intermediate Period.

We report our results on compositional characterization of a ceramic sample from the site of Huacramarca, located in the Ancash region (Peruvian North-Central Highlands). ese results are based don XRD, XRF AND Mössbauer Espectroscopy analyses. Previous identication of compositional variability (based on macroscopical observations) suggest a pattern between dierent kinds of tempers and clay sources. Such patterns are strongly correlated with the variability identied through the outlined techniques, which allowed to go further and consider that alternative pottery-making processes were responsible for the Huacramarca assemblage. is suggests the possibility of dierent groups of people co-habiting in the settlement during the early part of the Late Intermediate Period.