Geoarchaeological interpretations of the formation and environment of Samaca H-8, Ica Valley, south coast Peru (c. AD 900–1550)

IF 0.5 4区 地球科学 Q4 GEOLOGY Boletin De La Sociedad Geologica Mexicana Pub Date : 2022-12-13 DOI:10.18268/bsgm2022v74n3a080622
Lady Santana Quispe, C. French, D. Beresford-Jones, Carlos Enrique Rengifo Chunga
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Abstract

Today the Lower Ica Valley (Peru) exhibits evidence of environmental degradation, strong activity of deposition and erosion processes through modifying agents such as water and wind. All of this is the product of a long process of environmental transformation both during and since pre-Columbian times. Archaeological remains present in this valley evidence a long and important pre-Columbian cultural trajectory. We provide a case study of the geoarchaeology of the Samaca H-8 archaeological site that was founded sometime towards the end of the Middle Horizon (c. AD 900-1000) and consolidated its development during the Late Intermediate period (AD 1000-1400). This work contemplates the analysis of soils and sediments using micromorphology, geochemical-geophysical analyzes and radiocarbon dating. The results reveal that the construction and first occupation of Samaca H-8 (or at least the eastern part of the site), during the transition from the Middle Horizon period to the Late Intermediate Period, was marked by environmental dynamics and drastic landscape change toward more arid conditions. Recurrent deposition of windblown materials took place, perhaps due to a lack of protection offered by riparian dry forest cover. The Samaca H-8 site was established under these environmental conditions around AD 900.
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对秘鲁南海岸伊卡山谷Samaca H-8的形成和环境的地质考古解释(约公元900–1550年)
如今,下伊卡河谷(秘鲁)显示出环境退化、强烈的沉积活动和通过水和风等改性剂进行的侵蚀过程的证据。所有这些都是前哥伦布时代及其后漫长的环境转型过程的产物。该山谷中的考古遗迹证明了前哥伦布时期漫长而重要的文化轨迹。我们提供了Samaca H-8考古遗址的地质考古案例研究,该遗址建立于中地平线末期(约公元900-1000年),并在中后期(公元1000-1400年)巩固了其发展。这项工作考虑使用微观形态、地球化学地球物理分析和放射性碳年代测定来分析土壤和沉积物。结果表明,Samaca H-8(或至少该场地的东部)的建造和首次占用,在从中地平线时期到中后期的过渡时期,以环境动力学和向更干旱条件的剧烈景观变化为标志。风吹材料的反复沉积可能是由于河岸干燥森林覆盖缺乏保护。Samaca H-8遗址是在公元900年左右的环境条件下建立的。
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来源期刊
CiteScore
1.40
自引率
12.50%
发文量
34
审稿时长
50 weeks
期刊介绍: The Boletín de la Sociedad Geológica Mexicana is a completely free-access electronic journal published semi-annually that publishes papers and technical notes with its main objective to contribute to an understanding of the geology of Mexico, of its neighbor areas, and of geologically similar areas anywhere on Earth’s crust. Geology has no boundaries so we may publish papers on any area of knowledge that is interesting to our readers. We also favor the publication of papers on relatively unfamiliar subjects and objectives in mainstream journals, e.g., papers devoted to new methodologies or their improvement, and areas of knowledge that in the past had relatively little attention paid them in Mexican journals, such as urban geology, water management, environmental geology, and ore deposits, among others. Mexico is a land of volcanos, earthquakes, vast resources in minerals and petroleum, and a shortage of water. Consequently, these topics should certainly be of major interest to our readers, our Society, and society in general. Furthermore, the Boletín has been published since 1904; that makes it one of the oldest scientific journals currently active in Mexico and, most notably, its entire contents, from the first issue on, are available online.
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