In order to obtain the first absolute chronology data, a detailed rock-magnetic, archaeomagnetic and radiocarbon investigation was performed on some in situ features of the El Cerrito pyramid. Archaeomagnetic sampling was carried out on two rectangular fire pits and one burned soil located at the piedmont of the pyramid. Marked irreversibility between heating and cooling cycles and consequently thermal instability is observed on continuous thermomagnetic experiments which discouraged to perform paleointensity experiments. Alternating field demagnetization revealed essentially single component magnetization with negligible secondary overprint probably of viscous origin. Archaeomagnetic age intervals were obtained using available global models and local curves with rather concordant results. Calibrated radiocarbon age agrees well with archaeomagnetic date in one fire pit analyzed while slight differences are observed for the burned soil and the second fire pit. This may be interpreted as reuse and continuous use of these ceremonial areas involving fire as an essential element. The evidence of possible colonial occupation indicates that El Cerrito persisted as a ceremonial center over the centuries, as also attested by Franciscan historical documents.

为了获得第一个绝对年代学数据，对 El Cerrito 金字塔的一些原位特征进行了详细的岩石磁性、考古磁性和放射性碳调查。在位于金字塔山前的两个矩形火坑和一个燃烧的土壤上进行了考古磁采样。在不鼓励进行古强度实验的连续热磁实验中观察到加热和冷却循环之间显着的不可逆性以及因此的热不稳定性。交变场去磁显示基本上单组分磁化与可忽略不计的二次叠印可能是粘性来源。使用可用的全球模型和局部曲线获得了古磁年龄间隔，结果相当一致。校准的放射性碳年龄与分析的一个火坑中的考古磁日期非常吻合，而在燃烧的土壤和第二个火坑中观察到了细微的差异。这可以解释为重复使用和持续使用这些以火为基本元素的仪式区域。可能的殖民占领的证据表明，El Cerrito 几个世纪以来一直是一个仪式中心，方济各会的历史文献也证明了这一点。