| Autor: |
Nakazawa, Y., Maeso, C. V., Sumita, Mari, Carmona-Ballestero, E., Rissetto, K., Ordaz, A. B., Naoe, Y., Dohi, K., Araya, M., del Arco-Aguilar, M., Schmincke, Hans-Ulrich |
| Rok vydání: |
2020 |
| Zdroj: |
[Poster] In: JpGU-AGU Joint Meeting 2020, 12.07.-16.07.2020, Makuhari, Japan (virtual) . |
| Popis: |
The Canary archipelago comprises seven major islands located approximately 27 –29 degrees N,stretching for 490 km on the eastern Atlantic, off the shore of northwestern North Africa. Tenerife, thehighest and largest volcanic island among the Canary Islands was occupied by the indigenous peoplecalled the Guanches, until the 15th Century when the Spanish colonizers arrived. In November 2016, agroup of the authors have conducted a pedestrian survey of obsidian outcrops and archaeological siteson the surface of Tenerife, as well as an observation on excavated obsidian artifacts from majorarchaeological sites at the Tenerife Archaeological Museum. The purpose of this research was toinvestigate the human exploitation of obsidian to elucidate how the Guanches survived in this activevolcanic landscape during the Pre-Hispanic times. Island of Tenerife provides an ideal setting to addressthis research question, because of its unique biogeographic settings: diverse ecological zonescharacterized by northern humid region and southern dryland, and altitudinal difference created by Mt.Teide (3718m asl) in the middle of the Island. The survey was conducted at the southern dryland(“barranco”) of Tenerife, and we identified a total of 32 artifact scatters, principally consisting ofobsidian artifacts, pot sherds, and marine shells. Among the surface scatters, 29 of them have obsidianartifacts. Besides these archaeological surface scatters, we also located three obsidian outcrops: TabonalNegro (a part of phonolitic dome in Mt. Teide), Tabonal los Guanches (northern skirt of Mt. Teide), andChalco de Viento (north coast). Some obsidian artifacts were collected for further geochemical study ofobsidian and hydration measurements. Besides, obsidian artifacts from Estacas 1 and Guargacho werealso sampled for comparison. Among these samples, we specifically chose 11 samples from a combinationof surface localities, excavated archaeological sites, and obsidian outcrops. In this paper, we report apreliminary result of EPMA and Laser ICP-MS analysis of these obsidian samples. The result will provide avariation in geochemical signatures of obsidian and an implication of Pre-Hispanic human use of obsidianin Tenerife. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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