. Cultural chronology and change as reflected in the ceramics of the Virú Valley, Peru. Pottery -- Viru Valley, Peru; Mounds -- Peru Viru Valley; Viru Valley, Peru -- Antiquities. 80 c;eramic:s of the xiru valley, peru. •';\'-VihWVi^'ui»iiiiiiiMt^^^^^ 11 y\^\* TV 111' I 111 11111 Ground level at base of mound Meters Fig. 39. Profile of Trencfi V-272A. a, light brown earth; b, yellow clay; c and e, brown earth; d and k, yellow sand;/and h, brownish-black earth; g and i, black earth; j, dark brown earth. they form an infertile crust. Today, the formation of this crust is prevented by plowing, bu
. Cultural chronology and change as reflected in the ceramics of the Virú Valley, Peru. Pottery -- Viru Valley, Peru; Mounds -- Peru Viru Valley; Viru Valley, Peru -- Antiquities. 80 c;eramic:s of the xiru valley, peru. •';\'-VihWVi^'ui»iiiiiiiMt^^^^^ 11 y\^\* TV 111' I 111 11111 Ground level at base of mound Meters Fig. 39. Profile of Trencfi V-272A. a, light brown earth; b, yellow clay; c and e, brown earth; d and k, yellow sand;/and h, brownish-black earth; g and i, black earth; j, dark brown earth. they form an infertile crust. Today, the formation of this crust is prevented by plowing, but the prehistoric farmers must have been compelled to scrape up the concentrated salts in order to maintain the fertility of their fields. These soil conditions exist also in the lower portions of the Moche and Chicama valleys to the north, where there are also numerous artificial mounds composed of salty soil. The abundance of potsherds in these mounds indicates that they were used to deposit household refuse. They may have served also as dwelling places, although our trenches produced no traces of houses. More extensive excavation in these mounds might reveal evidence, in the form of post-holes and floors, of the use of flimsy houses of poles and adobe plaster like many of the local dwellings lived in today. Excavation V-272A.—Although the surface of the mound is Ijroken by pits dug by huaqueros, we were able to locate an undisturbed area on the north half of the mound, where we cut a 3 by 6 meter trench (fig. 38). The excavation was carried down to a layer of sterile yellow sand at a depth of 2 meters. The top of this sand was 25 cm. below the ground level of the surrounding cornfield. Sherds were present throughout the fill down to the yellow sand, but were unusually abundant in the lower half. The soil stratification consisted of alternating layers of dark earth, light brown earth, and yellow sand or clay (fig. 39). Unfortunately, the bags containing the sherds from
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