SciELO - Scientific Electronic Library Online

 
vol.48 issue1NATURAL CORRIDORS, SOURCE OF OBSIDIAN AND SEASONALITY: THE CASE OF THE HUMAN MOVEMENT BETWEEN PALI AIKE AND SIERRA BAGUALES (SOUTHERN PATAGONIA) author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Chungará (Arica)

On-line version ISSN 0717-7356

Abstract

GARVEY, Raven et al. ARCHAEOLOGICAL AGE ESTIMATION BASED ON OBSIDIAN HYDRATION DATA FOR TWO SOUTHERN ANDEAN SOURCES. Chungará (Arica) [online]. 2016, vol.48, n.1, pp.9-23.  Epub Feb 03, 2016. ISSN 0717-7356.  http://dx.doi.org/10.4067/S0717-73562016005000002.

Obsidian is abundant in archaeological sites throughout Mendoza Province, Argentina but no obsidian hydration rates exist to date these assemblages. Direct dating of obsidian artifacts is particularly important in west-central Argentina because the surface record is extensive but well-defined time marker artifacts are lacking. The costs of non-optical hydration dating techniques currently preclude their regular use in the region· however. We present and evaluate 12 models for age estimation based on optical hydration rim measurements for the two most commonly used obsidian types in the region (Las Cargas and Laguna del Maule). Age estimation equations are derived for each source using observed hydration rim-radiocarbon date pairs· and parameterized by variables known to influence obsidian hydration in experimental settings. The equations advanced here are currently best at predicting the known ages of artifacts independently dated by radiocarbon· and can be cautiously used to estimate the ages of obsidian artifacts.

Keywords : Obsidian hydration; age estimation; Argentina.

        · abstract in Spanish     · text in English     · English ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License