10915
Title Of Journal Book
Kokogaku to shizen kagaku (Archaeology and natural science)
Issue
20
Pages
35-50
Collation
8 figs., 22 refs.
ISSN
0288-5964
Language Of Text
Japanese
Literature Type
Serial
Literature Level
Analytic
Abstract
A standard method consists of systematic extraction of volcanic glass particles from the samples followed by rapid and exact measurement of their refractive indices. Four columnar samples examined are from the Torihama site (Fukui prefecture), Itai site (Hyogo prefecture), and Kyoto University archaeological site. In comparing the detected volcanic ash horizons with the wide spread tephra of known ages, four chronological horizons are clarified in the Torihama drilling samples (ca. 24720, 9300, 6300 and 2000-3000 BP), two in the Itai site samples (ca. 24720 and 20000 BP) and two in the Kyoto University samples (ca. 24720 and 6300 BP). One of the samples of the Itai site was found to have been deposited in an aquatic environment, whereas others were terrestrial deposits. -- AATA
Keywords
Tephra Glass Volcanic; Refractive index; Torihama site (Fukui prefecture, Japan); Itai site (Hyogo prefecture, Japan); Kyoto University site (Japan);Soil Sequence;Glass Volcanic Concentration; Site Dating AATA
pub_id
10915
Title Translation
A standard method to determine volcanic glass concentration patterns in soil sequence and its application on columnar samples from several archaeological sites