Dating volcanic ash and pumice stones from volcano El Misti, Peru, by thermoluminescence

Author(s)

Ayala-Arenas, Jorge S. ^[1] ; Cano, Nilo F. ^[2] ; Rivera-Porras, Marco ^[3] ; Gonzales-Lorenzo, Carlos D. ^[4] ; Watanabe, Shigueo ^[4]

Affiliation

^[1] UNSA, Fac Ciencias Nat & Formales, Escuela Profes Fis, Av Independencia S-N, Arequipa - Peru

^[2] Univ Fed Sao Paulo, Inst Mar, Rua Doutor Carvalho de Mendonca 144, BR-11070100 Santos, SP - Brazil

^[3] Inst Geol Minero & Met, INGEMMET, Barrio Magisterial N 2B-16, Umacollo, Arequipa - Peru

^[4] Univ Sao Paulo, Inst Fis, Rua Matao, Travessa R 187, BR-05508090 Sao Paulo, SP - Brazil

• Document type: Journal article
• Source: QUATERNARY INTERNATIONAL; v. 512, p. 1-5, APR 10 2019.
• Web of Science Citations: 0

Abstract

El Misti is one of active volcanos in Peru, and known because it is located close to an important city of Arequipa, at about 17 km. There has been in the past several eruptions and the volcano is covered with lava, ash, etc. from such eruptions. The edifice is composed of a stratotocone called Misti 1, two stratocones designated Misti 2 and Misti 3 and a summit cone Misti 4. In this work samples from Misti 3 have been collected for TL dating. In the past charcol has been used for radiocarbon measurements and found age varying from 25000 to 35000 years. The TL dating produces ages between 28700 and 32300 years. (AU)

• FAPESP's process: 18/17419-8 - 14th International Symposium on Radiation Physics (ISRP-14)
• Grantee: Nilo Francisco Cano Mamani
• Support Opportunities: Research Grants - Meeting - Abroad
• FAPESP's process: 14/03085-0 - Quaternary geochronology of Southeastern and Southern coast of Brazil
• Grantee: Shigueo Watanabe
• Support Opportunities: Research Projects - Thematic Grants