|
|||||
|
|
Magnetic properties and electron spin resonance of Ecuadorian obsidians. Application to provenance research of archeological samples |
|
| Authors: | M Duttine RB Scorzelli G Cernicchiaro G Poupeau N Guillaume-Gentil |
| Institution: | aCBPF, rua Dr. Xavier Sigaud 150, Rio de Janeiro 22290-180, Brazil bIRAMAT–CRP2A, UMR5060 CNRS—Université Bordeaux 3, Maison de l’Archéologie, Pessac 33607, France cInstitut de Préhistoire et des Sciences de l’Antiquité, Université de Neuchâtel, Neuchâtel CH2000, Switzerland |
| Abstract: | Obsidians from major Ecuadorian sources were analyzed by SQUID magnetometry and electron spin resonance (ESR). The association of these two techniques permits to differentiate obsidians from the sources of Cotopaxi volcano and from the Quiscatola and Mullumica–Callejones sources of the Chacana caldera, taking into account various parameters arising from the M vs. H cycles and the X-band ESR spectra. The analysis of 27 archeological samples coming from the prehispanic site of La Maná allowed us to infer that most of them come from the Mullumica–Callejones source. |
| Keywords: | Magnetic property Electron spin resonance Obsidian Provenance research Ecuador |
| 本文献已被 ScienceDirect 等数据库收录！ | |