FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2007404257> ?p ?o ?g. }

• W2007404257 endingPage "282" @default.
• W2007404257 startingPage "269" @default.
• W2007404257 abstract "A very important problem for Quaternary research is determining when human beings first settled the Japanese islands. Recently many artifacts of the Early Paleolithic age, dating from before 30, 000 years ago, have been discovered in the northern part of Sendai plain, North Japan. The age of these artifacts has been determined mainly by radiometric dating methods.On the other hand, tephrochronology is an effective technique for establishing Quaternary stratigraphy in the Japanese islands and their surrounding area. The author investigated the age of horizons bearing artifacts on representative sites of that age from the viewpoint of tephrochronology.The stratigraphy of proximal tephra layers is indicated in Fig. 1. Useful widespread tephra layers for chronological study of this area are Toya (ca. 90, 000-100, 000y.B.P.), On-Pm I (ca. 80, 000y.B.P.), Aso-4 (ca. 70, 000y.B.P.) and AT (ca. 21, 000-22, 000y.B.P.). Toya, On-Pm I, Aso-4 and AT were discovered from the horizons between IcP and KtA, IcP and KtA, N-N and N-Y, and N-Y and NK-U, respectively. At Babadan A site, artifacts of the Early Paleolithic age were excavated from horizons in Ando soil found below IwP, just below and above IcP, between IcP and KtA, just above N-Y, and between N-Y and NK-U. Consequently, the artifacts excavated from the horizons below KtA belong to the Early Paleolithic age. At Zazaragi site, another representative site belonging to the Early Paleolithic age, the artifacts were excavated from the horizons of orange-colored volcanic ash (the lower part of Yasuzawa volcanic ash). During the excavation, this deposit was regarded as an airfall tephra layer. But the author interpreted this deposit as a weathered part of a pyroclastic flow deposit (N-Y3) on the basis of the following observations:(1) The boundary of the lower part of Yasuzawa volcanic ash and lower pyroclastic flow deposit is irregular and not clear in some place.(2) It is massive and not layered. There is no intercalation of soil.(3) It is not well sorted.(4) It includes charcoals.(5) It has segregation pipes. Some of them develop at the boundary of the lower part between the Yasuzawa volcanic ash and the lower pyroclastic flow deposit.The author believes that the artifacts were incorporated into pyroclastic flow and carried to their present site.The horizons from which artifacts of the Early Paleolithic age in Japan have been excavated are plotted in Fig. 8. It has been confirmed that some widespread tephra layers originated from gigantic eruptions and covered the area surrounding the Sea of Japan (cf. MACHIDA and ARAI, 1933). The author believes that common chronological studies of Paleolithics in this area are made feasible by tephrochronology." @default.
• W2007404257 created "2016-06-24" @default.
• W2007404257 creator A5059748557 @default.
• W2007404257 date "1989-01-01" @default.
• W2007404257 modified "2023-10-14" @default.
• W2007404257 title "Tephrochronological study of the layers including the Early. Paleolithic artifacts in the northern part of Sendai plain, Japan." @default.
• W2007404257 cites W1527792491 @default.
• W2007404257 cites W1978268847 @default.
• W2007404257 cites W2016647293 @default.
• W2007404257 cites W2078525811 @default.
• W2007404257 cites W2093856018 @default.
• W2007404257 cites W2131437852 @default.
• W2007404257 cites W2223492531 @default.
• W2007404257 cites W279079975 @default.
• W2007404257 doi "https://doi.org/10.4116/jaqua.28.269" @default.
• W2007404257 hasPublicationYear "1989" @default.
• W2007404257 type Work @default.
• W2007404257 sameAs 2007404257 @default.
• W2007404257 citedByCount "6" @default.
• W2007404257 countsByYear W20074042572014 @default.
• W2007404257 countsByYear W20074042572017 @default.
• W2007404257 countsByYear W20074042572018 @default.
• W2007404257 crossrefType "journal-article" @default.
• W2007404257 hasAuthorship W2007404257A5059748557 @default.
• W2007404257 hasBestOaLocation W20074042571 @default.
• W2007404257 hasConcept C109281948 @default.
• W2007404257 hasConcept C120806208 @default.
• W2007404257 hasConcept C127313418 @default.
• W2007404257 hasConcept C151730666 @default.
• W2007404257 hasConcept C160464908 @default.
• W2007404257 hasConcept C166957645 @default.
• W2007404257 hasConcept C170187044 @default.
• W2007404257 hasConcept C17409809 @default.
• W2007404257 hasConcept C205649164 @default.
• W2007404257 hasConcept C2777981168 @default.
• W2007404257 hasConcept C77928131 @default.
• W2007404257 hasConcept C87457978 @default.
• W2007404257 hasConceptScore W2007404257C109281948 @default.
• W2007404257 hasConceptScore W2007404257C120806208 @default.
• W2007404257 hasConceptScore W2007404257C127313418 @default.
• W2007404257 hasConceptScore W2007404257C151730666 @default.
• W2007404257 hasConceptScore W2007404257C160464908 @default.
• W2007404257 hasConceptScore W2007404257C166957645 @default.
• W2007404257 hasConceptScore W2007404257C170187044 @default.
• W2007404257 hasConceptScore W2007404257C17409809 @default.
• W2007404257 hasConceptScore W2007404257C205649164 @default.
• W2007404257 hasConceptScore W2007404257C2777981168 @default.
• W2007404257 hasConceptScore W2007404257C77928131 @default.
• W2007404257 hasConceptScore W2007404257C87457978 @default.
• W2007404257 hasIssue "4" @default.
• W2007404257 hasLocation W20074042571 @default.
• W2007404257 hasOpenAccess W2007404257 @default.
• W2007404257 hasPrimaryLocation W20074042571 @default.
• W2007404257 hasRelatedWork W19511850 @default.
• W2007404257 hasRelatedWork W1979022608 @default.
• W2007404257 hasRelatedWork W1993394589 @default.
• W2007404257 hasRelatedWork W2027533688 @default.
• W2007404257 hasRelatedWork W2047787144 @default.
• W2007404257 hasRelatedWork W2132537176 @default.
• W2007404257 hasRelatedWork W2985820688 @default.
• W2007404257 hasRelatedWork W3140951577 @default.
• W2007404257 hasRelatedWork W4322391846 @default.
• W2007404257 hasRelatedWork W4380737999 @default.
• W2007404257 hasVolume "28" @default.
• W2007404257 isParatext "false" @default.
• W2007404257 isRetracted "false" @default.
• W2007404257 magId "2007404257" @default.
• W2007404257 workType "article" @default.