Regional provenance analyses of obsidian have enabled to identify so far twelve sources in Northwest of Argentina and defined two main and stable areas of distribution along the pre-Hispanic period. The aim of this paper is to report the first analyses carried out on obsidian artifacts recovered from two archaeological sites of the Tafí valley (Tucumán, Argentina), dating to the first and second millennium CE. The study addresses the sourcing and use of this raw material in their contexts, as well as the inclusion of the study area within the obsidian distribution circuits in the Northwest of Argentina. The methodology included techno-morphological and morphological-functional analyses as well as chemical provenance studies using x-ray fluorescence (ED-XRF). The results enabled us to detect, so far, the use of the Ona-Las Cuevas source, located approximately 240 km far from Tafí valley in the southern puna of Argentina (Catamarca province); and to suggest the implementation of indirect procurement practices within complex distribution circuits. We have also established that the obsidian artifacts would have been used intensively in daily activities which were part of household organization, such as long-distance relationships, hunting and processing food. Based on this information, we discuss the practical uses of obsidian, as well as other possible roles of this raw material in pre-Hispanic contexts which contribute to broaden knowledge about the cultural developments of Tafí valley.

中文翻译：

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对塔菲谷（阿根廷共和国图克曼省）的黑曜石制品的首次技术和物源分析

对黑曜石的区域物源分析已能够识别阿根廷西北地区迄今的十二个来源，并确定了西班牙前时期的两个主要且稳定的分布区域。本文的目的是报告对从塔菲河谷（阿根廷图库曼州）的两个考古遗址中发现的黑曜石文物进行的首次分析，该历史可追溯到公元第一千年和第二个千年。这项研究着眼于这种原材料的来源和使用，以及将研究区域纳入阿根廷西北部的黑曜石分布区域。该方法包括技术形态学和形态学功能分析，以及使用X射线荧光（ED-XRF）进行的化学来源研究。结果使我们到目前为止能够检测到Ona-Las Cuevas源的使用，位于距阿根廷南部帕纳省（Catamarca省）的塔菲谷约240公里的位置；并建议在复杂的分销渠道中实施间接采购做法。我们还确定，黑曜石制品在家庭组织的日常活动中会被大量使用，例如长途关系，狩猎和加工食物。根据这些信息，我们讨论黑曜石的实际用途，以及该原料在西班牙裔之前的背景下的其他可能作用，这些作用有助于拓宽对塔菲谷文化发展的了解。并建议在复杂的分销渠道中实施间接采购做法。我们还确定，黑曜石制品在家庭组织的日常活动中会被大量使用，例如长途关系，狩猎和加工食物。根据这些信息，我们讨论黑曜石的实际用途，以及该原料在西班牙裔之前的背景下的其他可能作用，这些作用有助于拓宽对塔菲谷文化发展的了解。并建议在复杂的分销渠道中实施间接采购做法。我们还确定，黑曜石制品在家庭组织的日常活动中会被大量使用，例如长途关系，狩猎和加工食物。根据这些信息，我们讨论黑曜石的实际用途，以及该原料在西班牙裔之前的环境中的其他可能作用，这些作用有助于拓宽对塔菲谷文化发展的了解。