Masami Izuho
Datos Biográficos
| ID | 233114 |
|---|---|
| NOMBRE | Masami Izuho |
| NOMBRES | Masami |
| APELLIDO | Izuho |
| FIRMA | IZUHO M |
| AFILIACIONES | Tokyo Metropolitan University |
| ORCID | 0000-0002-6598-1562 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 34 |
| TOTAL DE CITAS | 194 |
| TOTAL COMO AUTOR | 33 |
| TOTAL COMO EDITOR | 1 |
| PRIMER AÑO DE PUBLICACIÓN | 2005 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2026 |
| ÍNDICE H | 8 |
An Increase in Small Flake Sharp-edge Productivity Across the Initial–Early Upper Paleolithic at Tolbor (Mongolia)
The Upper Paleolithic archaeological record of the Tolbor Valley (northern Mongolia) documents a shift in emphasis from large-blade production to smaller-format bladelet production, characteristic of the Initial Upper Paleolithic (IUP) to Early Upper Paleolithic (EUP) transition in Central and Northeast Asia. This periodization is often associated with, respectively, early dispersal and permanent instalment of Homo sapiens populations in eastern …
Life and death in upper palaeolithic mongolia
The dispersal of Upper Palaeolithic groups after 45 ka bp into Mongolia and Inner Mongolia was remarkable because it was one of the most challenging environments of the Palaeolithic, principally because of its bitterly cold winters and unpredictable rainfall but also because of the difficulties of successful ambush hunting, of maintaining effective mating and information networks over large distances, and of obtaining sufficient animal fat. Here,…
Developing a Non‐Destructive Sourcing Method for Glassy Andesite and Basalt Artifacts
Glassy andesite and basalt are volcanic rocks often valued as a lithic raw material by ancient people. Crucial to examining trade and migration routes of ancient communities is lithic sourcing based on geochemical comparisons of artifacts and known quarry outcrops. Nevertheless, most past sourcing attempts using energy dispersive X‐ray fluorescence (ED‐XRF) analysis were restricted by traditional skepticism about obtaining accurate chemical compo…
Geometric morphometrics reveal a morphological relationship between Yubetsu microblade cores in Northeast Asia and Eastern Beringia
Non-Destructive energy dispersive X-ray fluorescence sourcing of glassy andesite and basalt artifacts in Upper Paleolithic southwestern Japan
X-ray fluorescence (XRF) analysis for lithic raw material provenance, based on comprehensive geological knowledge, offers indispensable insights into ancient human behavior. Nevertheless, the provenance study of non-obsidian materials is still a challenging field. Within the Setouchi region of southwestern Japan, the sourcing of lithic tools manufactured from glassy andesite and basalt (GAB) has been constrained due to skepticism surrounding the …
Problems associated with the age determination of the oldest pottery yielding cultural layers at the Studenoe 1 site, Transbaikal (southern Siberia)
Archaeological evidence shows widespread human depopulation of Last Glacial Maximum Northeast Asia
Response to Review of “Late Upper Paleolithic occupation at Cooper’s Ferry, Idaho, USA, ∼16,000 years ago” by Fiedel et al
In an essay published in PaleoAmerica (2020, Vol. 6, No. 4), Fiedel and coauthors present a review of “Late Upper Paleolithic occupation at Cooper’s Ferry, Idaho, USA, ∼16,000 years ago”, by Davis and coauthors in Science (2019, Vol. 365, pp. 891–897). Fiedel and coauthors’ review presents significant misunderstandings about fundamental aspects of site stratigraphy and radiocarbon chronology and also advances alternative speculations about report…
Introduction of a Special Issue “Across steppes and mountains
Recent progress of the Paleolithic research in Asia
Of the sea and volcano
Late Upper Paleolithic occupation at Cooper’s Ferry, Idaho, USA, ~16,000 years ago
The early occupation of America The Cooper's Ferry archaeological site in western North America has provided evidence for the pattern and time course of the early peopling of the Americas. Davis et al. describe new evidence of human activity from this site, including stemmed projectile points. Radiocarbon dating and Bayesian analysis indicate an age between 16,560 and 15,280 years before present. Humans therefore arrived in the Americas before an…
A Circum-Pacific Perspective on the Origin of Stemmed Points in North America
The Western Stemmed and Paleocoastal technocomplexes are prevalent in western North America. A working hypothesis states they are associated with the late-Pleistocene human migration into the Americas and derive from an antecedent located along the North Pacific Rim. Here, we review their records to create a techno-typological baseline, which we then compare to early archaeological records from the North Pacific Rim, Beringia, Siberia, and Russia…
New AMS Dates from the Shukubai-Kaso Site (Loc. Sankakuyama), Hokkaido (Japan)
This paper reports accelerator radiocarbon dates obtained from 14 charcoal specimens recovered from the Shukubai-Kaso site (Loc. Sankakuyama), which was excavated in 1973. The small flake-based assemblage from the site has been chronologically attributed to represent the oldest archaeological occupation in Hokkaido. Because the new radiocarbon dates, stratigraphic sequences, and site context do not contradict each other, we conclude that the ages…
Special issue
Tolbaga revisited
Early Upper Paleolithic blade technology in the Japanese Archipelago
Late Upper Paleolithic-Initial Jomon transitions, southern Kyushu, Japan
Obsidian sourcing analysis by X-ray fluorescence (XRF) for the Neolithic sites of Slavnaya 4 and 5, Sakhalin Islands (Russia)
The Last Glacial Maximum in northern Eurasia
Studies of the Quaternary in Japan
Radiocarbon dates, microblades and Late Pleistocene human migrations in the Transbaikal, Russia and the Paleo-Sakhalin-Hokkaido-Kuril Peninsula
Last Glacial Maximum Human Occupation of the Transbaikal, Siberia
We analyze the late Pleistocene radiocarbon chronology of the Transbaikal region of Siberia and conclude that humans inhabited the area during parts of the Last Glacial Maximum, but completely abandoned it between 24,800 and 22,800 cal yr BP. Moreover, the distinct contrast between non-microblade producing sites and those with microblades on either side of the radiocarbon gap suggests that the new technology arrived with recolonization
Lithics and climate
Investigating the Eolian Context of the Last Glacial Maximum Occupation at Kawanishi‐C, Hokkaido, Japan
As debates about the late Pleistocene human occupation of northeast Asia continue, the Last Glacial Maximum (LGM) prehistory of Hokkaido becomes more relevant. A geoarchaeological evaluation of key sites on the island will provide important evidence to understand human adaptive responses to LGM environments. Kawanishi‐C is located on the middle terrace of the Satsunai River, eastern Hokkaido. Previous salvage excavations totaling 5756 m 2 reveale…
Toward an Understanding of Technological Variability in Microblade Assemblages in Hokkaido, Japan
Five decades of research history on the late Upper Paleolithic in Hokkaido (northern Japan) shows that microblade assemblages appeared by approximately 20,000 B.P. and that various microblade technologies were developed during late Pleistocene. The empirically observed good association between the morphological features of lithic raw materials and the reduction sequences of microblade cores demonstrates that morphological features of procured lit…
Radiocarbon dates, microblades and Late Pleistocene human migrations in the Transbaikal, Russia and the Paleo-Sakhalin-Hokkaido-Kuril Peninsula
Timing of megafaunal extinction in the late Late Pleistocene on the Japanese Archipelago
Lithics and climate
Geoarchaeological investigations at the upper Paleolithic site of Kamihoronai‐Moi, Hokkaido, Japan
In order to better understand modern human behavioral variability in Hokkaido, Japan, we consider the geoarchaeology of the Kamihoronai‐Moi site in terms of its geochronology, stratigraphy, depositional environments, and post‐depositional disturbances. A Paleolithic component is stratigraphically situated between the Eniwa‐a (15,000–17,000 14 C yr B.P.) and the Tarumae‐d (8000–9000 14 C yr B.P.) tephras. Moreover, six AMS 14 C ages on charcoal fr…
A Circum-Pacific Perspective on the Origin of Stemmed Points in North America
The Western Stemmed and Paleocoastal technocomplexes are prevalent in western North America. A working hypothesis states they are associated with the late-Pleistocene human migration into the Americas and derive from an antecedent located along the North Pacific Rim. Here, we review their records to create a techno-typological baseline, which we then compare to early archaeological records from the North Pacific Rim, Beringia, Siberia, and Russia…
Tolbaga revisited
Last Glacial Maximum Human Occupation of the Transbaikal, Siberia
We analyze the late Pleistocene radiocarbon chronology of the Transbaikal region of Siberia and conclude that humans inhabited the area during parts of the Last Glacial Maximum, but completely abandoned it between 24,800 and 22,800 cal yr BP. Moreover, the distinct contrast between non-microblade producing sites and those with microblades on either side of the radiocarbon gap suggests that the new technology arrived with recolonization
Early Upper Paleolithic blade technology in the Japanese Archipelago
Archaeological evidence shows widespread human depopulation of Last Glacial Maximum Northeast Asia
[Special Section on Volcanic Glass] Archaeological Obsidian Studies in Hokkaido, Japan
Recent research has identified an extended exchange network in the Japan Sea Rim area extending over 3,000 km and including the mainland. This paper reviews current knowledge about obsidian studies in Hokkaido, a part of this region, and makes proposals for future research. The geology of Hokkaido and its 21 known obsidian sources are reviewed and results of chemical analyses of some sources described. Archaeological studies of exchange networks,…
Obsidian sourcing analysis by X-ray fluorescence (XRF) for the Neolithic sites of Slavnaya 4 and 5, Sakhalin Islands (Russia)
Late Pleistocene Geology and Paleolithic Archaeology of the Shimaki Site, Hokkaido, Japan
Here, we assess geochronological, sedimentological, stratigraphic, and stone tool data from Shimaki, an Upper Paleolithic site in southeastern Hokkaido, Japan. Overall, we find that Shimaki's landscape context and flaked‐stone assemblage are similar to sites in Hokkaido that date to just before or at the Last Glacial Maximum (LGM). Based on several numerical ages, we suggest that the artifact‐bearing layer, including a wedge‐shaped core morpholog…
The Geochemistry of the Major Sources of Archaeological Obsidian on Hokkaido Island (Japan)
The geochemical compositions for obsidian from two of the most important sources on the Japanese island of Hokkaido, Shirataki and Oketo, are presented. This work represents the first systematic study of obsidian geochemistry on Hokkaido from the view of modern methodological standards. The study was performed with the help of neutron activation analysis to determine the concentrations for 28 elements. The results obtained allow us to subdivide b…
Investigating the Eolian Context of the Last Glacial Maximum Occupation at Kawanishi‐C, Hokkaido, Japan
As debates about the late Pleistocene human occupation of northeast Asia continue, the Last Glacial Maximum (LGM) prehistory of Hokkaido becomes more relevant. A geoarchaeological evaluation of key sites on the island will provide important evidence to understand human adaptive responses to LGM environments. Kawanishi‐C is located on the middle terrace of the Satsunai River, eastern Hokkaido. Previous salvage excavations totaling 5756 m 2 reveale…
Toward an Understanding of Technological Variability in Microblade Assemblages in Hokkaido, Japan
Five decades of research history on the late Upper Paleolithic in Hokkaido (northern Japan) shows that microblade assemblages appeared by approximately 20,000 B.P. and that various microblade technologies were developed during late Pleistocene. The empirically observed good association between the morphological features of lithic raw materials and the reduction sequences of microblade cores demonstrates that morphological features of procured lit…
[Special Section on Volcanic Glass] Archaeological Obsidian Studies in Hokkaido, Japan
Recent research has identified an extended exchange network in the Japan Sea Rim area extending over 3,000 km and including the mainland. This paper reviews current knowledge about obsidian studies in Hokkaido, a part of this region, and makes proposals for future research. The geology of Hokkaido and its 21 known obsidian sources are reviewed and results of chemical analyses of some sources described. Archaeological studies of exchange networks,…
Geoarchaeological investigations at the upper Paleolithic site of Kamihoronai‐Moi, Hokkaido, Japan
In order to better understand modern human behavioral variability in Hokkaido, Japan, we consider the geoarchaeology of the Kamihoronai‐Moi site in terms of its geochronology, stratigraphy, depositional environments, and post‐depositional disturbances. A Paleolithic component is stratigraphically situated between the Eniwa‐a (15,000–17,000 14 C yr B.P.) and the Tarumae‐d (8000–9000 14 C yr B.P.) tephras. Moreover, six AMS 14 C ages on charcoal fr…
Human responses to the Younger Dryas in Japan
Human cultures and environmental changes in the Pleistocene–Holocene transition in the Japanese Archipelago
Timing of megafaunal extinction in the late Late Pleistocene on the Japanese Archipelago
Environmental Changes and Human Occupation in East Asia during OIS3 and OIS2
The Japan Association for Quaternary Research (JAQUA) and the Geological Survey of Japan (GSJ), National Institute of Advanced Industrial Science and Technology (AIST), celebrated their 50th and 125th anniversaries, respectively, with an international symposium entitled 'Quaternary Environmental Changes and Humans in Asia and the Western Pacific', November 19-22, 2007, in Tsukuba, Japan. This volume represents the papers presented at the session …
The Geochemistry of the Major Sources of Archaeological Obsidian on Hokkaido Island (Japan)
The geochemical compositions for obsidian from two of the most important sources on the Japanese island of Hokkaido, Shirataki and Oketo, are presented. This work represents the first systematic study of obsidian geochemistry on Hokkaido from the view of modern methodological standards. The study was performed with the help of neutron activation analysis to determine the concentrations for 28 elements. The results obtained allow us to subdivide b…
Investigating the Eolian Context of the Last Glacial Maximum Occupation at Kawanishi‐C, Hokkaido, Japan
As debates about the late Pleistocene human occupation of northeast Asia continue, the Last Glacial Maximum (LGM) prehistory of Hokkaido becomes more relevant. A geoarchaeological evaluation of key sites on the island will provide important evidence to understand human adaptive responses to LGM environments. Kawanishi‐C is located on the middle terrace of the Satsunai River, eastern Hokkaido. Previous salvage excavations totaling 5756 m 2 reveale…
Late Pleistocene Geology and Paleolithic Archaeology of the Shimaki Site, Hokkaido, Japan
Here, we assess geochronological, sedimentological, stratigraphic, and stone tool data from Shimaki, an Upper Paleolithic site in southeastern Hokkaido, Japan. Overall, we find that Shimaki's landscape context and flaked‐stone assemblage are similar to sites in Hokkaido that date to just before or at the Last Glacial Maximum (LGM). Based on several numerical ages, we suggest that the artifact‐bearing layer, including a wedge‐shaped core morpholog…
Last Glacial Maximum Human Occupation of the Transbaikal, Siberia
We analyze the late Pleistocene radiocarbon chronology of the Transbaikal region of Siberia and conclude that humans inhabited the area during parts of the Last Glacial Maximum, but completely abandoned it between 24,800 and 22,800 cal yr BP. Moreover, the distinct contrast between non-microblade producing sites and those with microblades on either side of the radiocarbon gap suggests that the new technology arrived with recolonization
Lithics and climate
The Last Glacial Maximum in northern Eurasia
Studies of the Quaternary in Japan
Radiocarbon dates, microblades and Late Pleistocene human migrations in the Transbaikal, Russia and the Paleo-Sakhalin-Hokkaido-Kuril Peninsula
Late Upper Paleolithic-Initial Jomon transitions, southern Kyushu, Japan
Obsidian sourcing analysis by X-ray fluorescence (XRF) for the Neolithic sites of Slavnaya 4 and 5, Sakhalin Islands (Russia)
New AMS Dates from the Shukubai-Kaso Site (Loc. Sankakuyama), Hokkaido (Japan)
This paper reports accelerator radiocarbon dates obtained from 14 charcoal specimens recovered from the Shukubai-Kaso site (Loc. Sankakuyama), which was excavated in 1973. The small flake-based assemblage from the site has been chronologically attributed to represent the oldest archaeological occupation in Hokkaido. Because the new radiocarbon dates, stratigraphic sequences, and site context do not contradict each other, we conclude that the ages…
Special issue
Tolbaga revisited
Early Upper Paleolithic blade technology in the Japanese Archipelago
Late Upper Paleolithic occupation at Cooper’s Ferry, Idaho, USA, ~16,000 years ago
The early occupation of America The Cooper's Ferry archaeological site in western North America has provided evidence for the pattern and time course of the early peopling of the Americas. Davis et al. describe new evidence of human activity from this site, including stemmed projectile points. Radiocarbon dating and Bayesian analysis indicate an age between 16,560 and 15,280 years before present. Humans therefore arrived in the Americas before an…
A Circum-Pacific Perspective on the Origin of Stemmed Points in North America
The Western Stemmed and Paleocoastal technocomplexes are prevalent in western North America. A working hypothesis states they are associated with the late-Pleistocene human migration into the Americas and derive from an antecedent located along the North Pacific Rim. Here, we review their records to create a techno-typological baseline, which we then compare to early archaeological records from the North Pacific Rim, Beringia, Siberia, and Russia…
Recent progress of the Paleolithic research in Asia
Of the sea and volcano
Pleistocene-Era Hominins and Archaeology (32 obras) · Geography (28 obras) · Archaeology (27 obras) · Archaeology and ancient environmental studies (24 obras) · Geology (23 obras) · Paleontology (19 obras) · Geology and Paleoclimatology Research (18 obras) · Pleistocene (15 obras) · Upper Paleolithic (14 obras) · Glacial period (11 obras)