Yuichi Nakazawa
Biographic Data
| ID | 645960 |
|---|---|
| NAME | Yuichi Nakazawa |
| GIVEN NAMES | Yuichi |
| FAMILY NAME | Nakazawa |
| SIGNATURE | NAKAZAWA Y |
| AFFILIATIONS | Hokkaido University |
| ORCID | 0000-0002-4407-5755 |
| VERIFIED | Yes |
| TOTAL WORKS | 18 |
| TOTAL CITATIONS | 132 |
| AUTHOR COUNT | 18 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2005 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 5 |
A combined approach of obsidian provenance analysis and hydration dating supports the validity of archaeostratigraphy: A case from the Tachikarushunai V site Loc. C, Hokkaido, Japan
Archaeostratigraphic integrity along slope is evaluated by obsidian hydration dates. • Obsidian provenance analysis is used to choose samples for hydration dating. • Microscopic observations on hydration rims show surfaces are partially eroded. • Internal rim measurements show a time difference between stratigraphic units. • Difference in estimated dates supports the archaeostratigraphic integrity. While the principle of stratigraphic superpositi…
Human Adaptation to the High-Altitude Permafrost Zone at Daisetsuzan National Park, Japan
Obsidian hydration dating helps understand pre-hispanic land use on the volcanic island of Tenerife, Canary Islands, Spain
The emergence and transmission of early pottery in the Late-Glacial Japan
A systematic comparison of obsidian hydration measurements: The first application of micro-image with secondary ion mass spectrometry to the prehistoric obsidian
The Last Glacial Maximum Microblades from Kashiwadai 1 in Hokkaido, Japan
Although microliths are regarded as small standardized tools for complex composite technology, it is still not fully understood whether this schematic understanding developed in Old World prehistory can apply to the Late Pleistocene microblades in northeastern Asia. Here, referring to the definition of the Old World microliths, we explore the morphometric traits of the Late Pleistocene microblades in northeast Asia through an examination of the l…
New AMS Dates from the Shukubai-Kaso Site (Loc. Sankakuyama), Hokkaido (Japan): Refining the Chronology of Small Flake-Based Assemblages during the Early Upper Paleolithic in the Paleo-Sakhalin-Hokkai…
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…
Human behavioral variability in prehistoric Eurasia
A functional approach to the use of the earliest blade technology in Upper Paleolithic Hokkaido, northern Japan
On the Pleistocene Population History in the Japanese Archipelago
This paper provides a current understanding of human population history in the Pleistocene Japanese Archipelago, particularly with respect to the routes and timing of hunter-gatherer migrations, by incorporating multiple lines of evidence from the records of archaeology, human paleontology, and genetic studies. The human fossil remains are concentrated on the Ryukyu Islands in southwestern Japan, suggesting that there may have been a northward mi…
Late-Glacial bifacial microblade core technologies in Hokkaido: An implication of human adaptation along the northern Pacific Rim
The significance of obsidian hydration dating in assessing the integrity of Holocene midden, Hokkaido, northern Japan
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…
Human responses to the Younger Dryas in Japan
Dual Nature in the Creation of Disciplinary Identity: A Socio-historical Review of Palaeolithic Archaeology in Japan
An expansion in archaeological excavations and site identifications over the last 30 years, particularly through an increase in salvage projects and the growth of government archaeology in Japan, has made the Japanese Islands one of the most dense regions of Palaeolithic archaeological sites in East Asia. The history of Pleistocene site discoveries and chronological frameworks for Palaeolithic lithic industries are summarized, followed by a criti…
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…
On stone-boiling technology in the Upper Paleolithic: Behavioral implications from an Early Magdalenian hearth in El Mirón Cave, Cantabria, Spain
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…
On stone-boiling technology in the Upper Paleolithic: Behavioral implications from an Early Magdalenian hearth in El Mirón Cave, Cantabria, Spain
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…
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…
On the Pleistocene Population History in the Japanese Archipelago
This paper provides a current understanding of human population history in the Pleistocene Japanese Archipelago, particularly with respect to the routes and timing of hunter-gatherer migrations, by incorporating multiple lines of evidence from the records of archaeology, human paleontology, and genetic studies. The human fossil remains are concentrated on the Ryukyu Islands in southwestern Japan, suggesting that there may have been a northward mi…
Late-Glacial bifacial microblade core technologies in Hokkaido: An implication of human adaptation along the northern Pacific Rim
A functional approach to the use of the earliest blade technology in Upper Paleolithic Hokkaido, northern Japan
The significance of obsidian hydration dating in assessing the integrity of Holocene midden, Hokkaido, northern Japan
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…
On stone-boiling technology in the Upper Paleolithic: Behavioral implications from an Early Magdalenian hearth in El Mirón Cave, Cantabria, Spain
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…
Dual Nature in the Creation of Disciplinary Identity: A Socio-historical Review of Palaeolithic Archaeology in Japan
An expansion in archaeological excavations and site identifications over the last 30 years, particularly through an increase in salvage projects and the growth of government archaeology in Japan, has made the Japanese Islands one of the most dense regions of Palaeolithic archaeological sites in East Asia. The history of Pleistocene site discoveries and chronological frameworks for Palaeolithic lithic industries are summarized, followed by a criti…
Human responses to the Younger Dryas in Japan
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…
The significance of obsidian hydration dating in assessing the integrity of Holocene midden, Hokkaido, northern Japan
Late-Glacial bifacial microblade core technologies in Hokkaido: An implication of human adaptation along the northern Pacific Rim
Human behavioral variability in prehistoric Eurasia
A functional approach to the use of the earliest blade technology in Upper Paleolithic Hokkaido, northern Japan
On the Pleistocene Population History in the Japanese Archipelago
This paper provides a current understanding of human population history in the Pleistocene Japanese Archipelago, particularly with respect to the routes and timing of hunter-gatherer migrations, by incorporating multiple lines of evidence from the records of archaeology, human paleontology, and genetic studies. The human fossil remains are concentrated on the Ryukyu Islands in southwestern Japan, suggesting that there may have been a northward mi…
New AMS Dates from the Shukubai-Kaso Site (Loc. Sankakuyama), Hokkaido (Japan): Refining the Chronology of Small Flake-Based Assemblages during the Early Upper Paleolithic in the Paleo-Sakhalin-Hokkai…
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…
A systematic comparison of obsidian hydration measurements: The first application of micro-image with secondary ion mass spectrometry to the prehistoric obsidian
The Last Glacial Maximum Microblades from Kashiwadai 1 in Hokkaido, Japan
Although microliths are regarded as small standardized tools for complex composite technology, it is still not fully understood whether this schematic understanding developed in Old World prehistory can apply to the Late Pleistocene microblades in northeastern Asia. Here, referring to the definition of the Old World microliths, we explore the morphometric traits of the Late Pleistocene microblades in northeast Asia through an examination of the l…
The emergence and transmission of early pottery in the Late-Glacial Japan
Obsidian hydration dating helps understand pre-hispanic land use on the volcanic island of Tenerife, Canary Islands, Spain
Human Adaptation to the High-Altitude Permafrost Zone at Daisetsuzan National Park, Japan
A combined approach of obsidian provenance analysis and hydration dating supports the validity of archaeostratigraphy: A case from the Tachikarushunai V site Loc. C, Hokkaido, Japan
Archaeostratigraphic integrity along slope is evaluated by obsidian hydration dates. • Obsidian provenance analysis is used to choose samples for hydration dating. • Microscopic observations on hydration rims show surfaces are partially eroded. • Internal rim measurements show a time difference between stratigraphic units. • Difference in estimated dates supports the archaeostratigraphic integrity. While the principle of stratigraphic superpositi…
Geography (17 works) · Pleistocene-Era Hominins and Archaeology (17 works) · Archaeology (16 works) · Geology (15 works) · Archaeology and ancient environmental studies (14 works) · Paleontology (10 works) · Geology and Paleoclimatology Research (7 works) · Glacial period (7 works) · Physical geography (7 works) · Pleistocene (7 works)