Jeffrey T Rasic
Dados Biográficos
| ID | 129065 |
|---|---|
| NOME | Jeffrey T Rasic |
| PRENOMES | Jeffrey T |
| SOBRENOME | Rasic |
| ASSINATURA | RASIC J T |
| AFILIAÇÕES | National Park Service |
| ORCID | 0000-0002-3549-6590 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 16 |
| TOTAL DE CITAÇÕES | 80 |
| TOTAL COMO AUTOR | 16 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 2007 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2026 |
| ÍNDICE H | 5 |
Techno-spatial analysis of the obsidian productions at Dry Creek (Interior Alaska)
Interior Alaska is a key-region for studying long-distance circulation/use of obsidian. • This work focuses on Dry Creek, the largest obsidian assemblage in interior Alaska. • The data is the largest published sample size of source obsidian from a site in Alaska. • We analyze how artifacts from each obsidian sources were transported to the site. • We discuss the much-overlooked mid-Holocene component IV clusters. Interior Alaska is a key-region f…
Late Pleistocene and Early Holocene Obsidian in Alberta and Human Dispersal into North America’s Ice-Free Corridor
We utilize pXRF to source the oldest obsidian artifacts in Alberta, Canada. The province lacks obsidian outcrops and hosts much of the late Pleistocene Ice-Free Corridor, the northern and southern ends of which are in proximity to obsidian outcrops in Yukon, Alaska, Idaho, and Wyoming. The early presence of these obsidians in Alberta informs models of human dispersion. Results point to an early establishment of relationships in the central Ice-Fr…
Obsidian source classification and defining “local” in early Holocene Southeast Alaska
Despite the ubiquity of obsidian in early Holocene archaeological assemblages across Southeast Alaska, artifact sourcing using bi‐plots and Principal Component Analysis has been hampered by the highly correlated geochemistry of two major sources: local Aguada Cove on Suemez Island, and distant Mount Edziza, in the Coast Mountain range. Partial Least Squares Discriminant Analysis (PLS‐DA) models constructed with device‐specific portable X‐ray fluo…
Terminal Pleistocene human occupation of the upper Copper River basin, southern Alaska
After decades of debate, the homeland of the First Americans is now generally understood to be northeast Asia; however, the process of Late Pleistocene peopling remains unresolved. As more archaeological sites south of the continental ice sheets are discovered that predate the opening of the interior “ice-free” corridor, interest in a coastal Pacific dispersal route has grown, and previously overlooked regions proximal to the Pacific coast have b…
Archaeological evidence shows widespread human depopulation of Last Glacial Maximum Northeast Asia
The movement of obsidian in Subarctic Canada
Walrusing, whaling and the origins of the Old Bering Sea culture
For a century, archaeologists have puzzled over the enigma of successful whaling unfolding with no predecessors prior to the last two millennia. The emergence of social complexity is linked with the appearance of the Old Bering Sea (OBS) aesthetic engraved on walrus ivory implements found in sites with large cemeteries and thick middens. Significantly, many OBS sites co-occur with major haulout locations for Pacific walrus, whose procurement enge…
Early human dispersals within the Americas
Complex processes in the settling of the Americas The expansion into the Americas by the ancestors of present day Native Americans has been difficult to tease apart from analyses of present day populations. To understand how humans diverged and spread across North and South America, Moreno-Mayar et al. sequenced 15 ancient human genomes from Alaska to Patagonia. Analysis of the oldest genomes suggests that there was an early split within Beringia…
Fluted projectile points in a stratified context at the Raven Bluff site document a late arrival of Paleoindian technology in northwest Alaska
Our understanding of the northern fluted point tradition, a critical early New World lithic assemblage, is constrained by limited data from stratified, datable contexts. Here, we report on the Raven Bluff site in northwest Alaska, where fluted projectile points, microblades, and a well‐preserved faunal assemblage have been recovered from datable sediments. Results show that prehistoric inhabitants occupied a stone‐sorted polygon where retooling, …
Iyatayet Revisited
The multicomponent middle-to-late Holocene coastal site of Iyatayet, at Cape Denbigh, Alaska, originally excavated by J. L. Giddings in the early 1950s, was key to developing a culture-historical sequence for northwest Alaska. We revisited the site in 2012 and 2013 to collect data to refine the occupation chronology and to test models of maritime-resource intensification. Our results show the Denbigh Flint complex occupations at Iyatayet are youn…
Archéologie du Cap Espenberg où la question du Birnirk et de l’origine du Thulé dans le nord-ouest de l’Alaska
Le cap Espenberg est une flèche littorale au large de la mer des Tchouktches dans le nord-ouest de l’Alaska contenant les vestiges de 4000 ans d’occupations humaines et de changements climatiques. Les recherches archéologiques et paléo-environnementales, menées depuis 2009 dans le cadre d’un projet pluridisciplinaire, apportent des informations nouvelles sur la chronologie des occupations du dernier millénaire et documentent l’émergence de la cul…
Rhyolite characterization and distribution in central Alaska
A Reconsideration of Purported Holocene Bison Bones from Northern Alaska
While bison were the most abundant large mammals in Eastern Beringia for most of the last 100 000 years, their range declined drastically at the end of the Pleistocene and through the Holocene. Research into the nature of Holocene human interactions with bison suffers from scarcity of faunal remains from most archaeological sites and poor chronological control of paleontological specimens over broad areas of Eastern Beringia. We examined the dati…
Weapon Systems and Assemblage Variability during the Northern Archaic Period in Northern Alaska
The Rosaliya (49-KIR-196) site is a small, single component microblade production and weapon repair location in the central Brooks Range of northern Alaska dated to 5200 years B.P. Although surrounded both geographically and chronologically by sites ascribed to the Northern Archaic tradition (NAT), the Rosaliya assemblage differs from them. It lacks the side-notched projectile points that are considered a hallmark of the tradition, and is instead…
Northern Archaic Settlement and Subsistence Patterns at Agiak Lake, Brooks Range, Alaska
While dozens of sites in northern Alaska have been assigned to the Northern Archaic tradition, most are small lithic scatters that represent ephemeral occupations and often contain only a single side-notched biface. In contrast, two sites at Agiak Lake in the central Brooks Range have revealed a range of Northern Archaic tools which are firmly associated with at least 55 stone tent rings dated to 5600–4900 cal. yrs. B.P. The large number of housi…
Toolkit Composition and Assemblage Variability
Nogahabara I is a late Pleistocene age archaeological site located in interior northwestern Alaska. In contrast to most archaeological assemblages left by mobile hunter-gatherers, which consist largely of manufacturing debris and a few worn or broken tools, the site contains 267 largely whole, useful tools, which we interpret as a lost or abandoned toolkit. As a snapshot of the tools carried by an individual or small group during an archaeologica…
Rhyolite characterization and distribution in central Alaska
The movement of obsidian in Subarctic Canada
Walrusing, whaling and the origins of the Old Bering Sea culture
For a century, archaeologists have puzzled over the enigma of successful whaling unfolding with no predecessors prior to the last two millennia. The emergence of social complexity is linked with the appearance of the Old Bering Sea (OBS) aesthetic engraved on walrus ivory implements found in sites with large cemeteries and thick middens. Significantly, many OBS sites co-occur with major haulout locations for Pacific walrus, whose procurement enge…
Toolkit Composition and Assemblage Variability
Nogahabara I is a late Pleistocene age archaeological site located in interior northwestern Alaska. In contrast to most archaeological assemblages left by mobile hunter-gatherers, which consist largely of manufacturing debris and a few worn or broken tools, the site contains 267 largely whole, useful tools, which we interpret as a lost or abandoned toolkit. As a snapshot of the tools carried by an individual or small group during an archaeologica…
Archaeological evidence shows widespread human depopulation of Last Glacial Maximum Northeast Asia
Iyatayet Revisited
The multicomponent middle-to-late Holocene coastal site of Iyatayet, at Cape Denbigh, Alaska, originally excavated by J. L. Giddings in the early 1950s, was key to developing a culture-historical sequence for northwest Alaska. We revisited the site in 2012 and 2013 to collect data to refine the occupation chronology and to test models of maritime-resource intensification. Our results show the Denbigh Flint complex occupations at Iyatayet are youn…
Terminal Pleistocene human occupation of the upper Copper River basin, southern Alaska
After decades of debate, the homeland of the First Americans is now generally understood to be northeast Asia; however, the process of Late Pleistocene peopling remains unresolved. As more archaeological sites south of the continental ice sheets are discovered that predate the opening of the interior “ice-free” corridor, interest in a coastal Pacific dispersal route has grown, and previously overlooked regions proximal to the Pacific coast have b…
Fluted projectile points in a stratified context at the Raven Bluff site document a late arrival of Paleoindian technology in northwest Alaska
Our understanding of the northern fluted point tradition, a critical early New World lithic assemblage, is constrained by limited data from stratified, datable contexts. Here, we report on the Raven Bluff site in northwest Alaska, where fluted projectile points, microblades, and a well‐preserved faunal assemblage have been recovered from datable sediments. Results show that prehistoric inhabitants occupied a stone‐sorted polygon where retooling, …
Late Pleistocene and Early Holocene Obsidian in Alberta and Human Dispersal into North America’s Ice-Free Corridor
We utilize pXRF to source the oldest obsidian artifacts in Alberta, Canada. The province lacks obsidian outcrops and hosts much of the late Pleistocene Ice-Free Corridor, the northern and southern ends of which are in proximity to obsidian outcrops in Yukon, Alaska, Idaho, and Wyoming. The early presence of these obsidians in Alberta informs models of human dispersion. Results point to an early establishment of relationships in the central Ice-Fr…
Obsidian source classification and defining “local” in early Holocene Southeast Alaska
Despite the ubiquity of obsidian in early Holocene archaeological assemblages across Southeast Alaska, artifact sourcing using bi‐plots and Principal Component Analysis has been hampered by the highly correlated geochemistry of two major sources: local Aguada Cove on Suemez Island, and distant Mount Edziza, in the Coast Mountain range. Partial Least Squares Discriminant Analysis (PLS‐DA) models constructed with device‐specific portable X‐ray fluo…
Weapon Systems and Assemblage Variability during the Northern Archaic Period in Northern Alaska
The Rosaliya (49-KIR-196) site is a small, single component microblade production and weapon repair location in the central Brooks Range of northern Alaska dated to 5200 years B.P. Although surrounded both geographically and chronologically by sites ascribed to the Northern Archaic tradition (NAT), the Rosaliya assemblage differs from them. It lacks the side-notched projectile points that are considered a hallmark of the tradition, and is instead…
Northern Archaic Settlement and Subsistence Patterns at Agiak Lake, Brooks Range, Alaska
While dozens of sites in northern Alaska have been assigned to the Northern Archaic tradition, most are small lithic scatters that represent ephemeral occupations and often contain only a single side-notched biface. In contrast, two sites at Agiak Lake in the central Brooks Range have revealed a range of Northern Archaic tools which are firmly associated with at least 55 stone tent rings dated to 5600–4900 cal. yrs. B.P. The large number of housi…
Toolkit Composition and Assemblage Variability
Nogahabara I is a late Pleistocene age archaeological site located in interior northwestern Alaska. In contrast to most archaeological assemblages left by mobile hunter-gatherers, which consist largely of manufacturing debris and a few worn or broken tools, the site contains 267 largely whole, useful tools, which we interpret as a lost or abandoned toolkit. As a snapshot of the tools carried by an individual or small group during an archaeologica…
Weapon Systems and Assemblage Variability during the Northern Archaic Period in Northern Alaska
The Rosaliya (49-KIR-196) site is a small, single component microblade production and weapon repair location in the central Brooks Range of northern Alaska dated to 5200 years B.P. Although surrounded both geographically and chronologically by sites ascribed to the Northern Archaic tradition (NAT), the Rosaliya assemblage differs from them. It lacks the side-notched projectile points that are considered a hallmark of the tradition, and is instead…
Northern Archaic Settlement and Subsistence Patterns at Agiak Lake, Brooks Range, Alaska
While dozens of sites in northern Alaska have been assigned to the Northern Archaic tradition, most are small lithic scatters that represent ephemeral occupations and often contain only a single side-notched biface. In contrast, two sites at Agiak Lake in the central Brooks Range have revealed a range of Northern Archaic tools which are firmly associated with at least 55 stone tent rings dated to 5600–4900 cal. yrs. B.P. The large number of housi…
A Reconsideration of Purported Holocene Bison Bones from Northern Alaska
While bison were the most abundant large mammals in Eastern Beringia for most of the last 100 000 years, their range declined drastically at the end of the Pleistocene and through the Holocene. Research into the nature of Holocene human interactions with bison suffers from scarcity of faunal remains from most archaeological sites and poor chronological control of paleontological specimens over broad areas of Eastern Beringia. We examined the dati…
Archéologie du Cap Espenberg où la question du Birnirk et de l’origine du Thulé dans le nord-ouest de l’Alaska
Le cap Espenberg est une flèche littorale au large de la mer des Tchouktches dans le nord-ouest de l’Alaska contenant les vestiges de 4000 ans d’occupations humaines et de changements climatiques. Les recherches archéologiques et paléo-environnementales, menées depuis 2009 dans le cadre d’un projet pluridisciplinaire, apportent des informations nouvelles sur la chronologie des occupations du dernier millénaire et documentent l’émergence de la cul…
Rhyolite characterization and distribution in central Alaska
Early human dispersals within the Americas
Complex processes in the settling of the Americas The expansion into the Americas by the ancestors of present day Native Americans has been difficult to tease apart from analyses of present day populations. To understand how humans diverged and spread across North and South America, Moreno-Mayar et al. sequenced 15 ancient human genomes from Alaska to Patagonia. Analysis of the oldest genomes suggests that there was an early split within Beringia…
Fluted projectile points in a stratified context at the Raven Bluff site document a late arrival of Paleoindian technology in northwest Alaska
Our understanding of the northern fluted point tradition, a critical early New World lithic assemblage, is constrained by limited data from stratified, datable contexts. Here, we report on the Raven Bluff site in northwest Alaska, where fluted projectile points, microblades, and a well‐preserved faunal assemblage have been recovered from datable sediments. Results show that prehistoric inhabitants occupied a stone‐sorted polygon where retooling, …
Iyatayet Revisited
The multicomponent middle-to-late Holocene coastal site of Iyatayet, at Cape Denbigh, Alaska, originally excavated by J. L. Giddings in the early 1950s, was key to developing a culture-historical sequence for northwest Alaska. We revisited the site in 2012 and 2013 to collect data to refine the occupation chronology and to test models of maritime-resource intensification. Our results show the Denbigh Flint complex occupations at Iyatayet are youn…
The movement of obsidian in Subarctic Canada
Walrusing, whaling and the origins of the Old Bering Sea culture
For a century, archaeologists have puzzled over the enigma of successful whaling unfolding with no predecessors prior to the last two millennia. The emergence of social complexity is linked with the appearance of the Old Bering Sea (OBS) aesthetic engraved on walrus ivory implements found in sites with large cemeteries and thick middens. Significantly, many OBS sites co-occur with major haulout locations for Pacific walrus, whose procurement enge…
Obsidian source classification and defining “local” in early Holocene Southeast Alaska
Despite the ubiquity of obsidian in early Holocene archaeological assemblages across Southeast Alaska, artifact sourcing using bi‐plots and Principal Component Analysis has been hampered by the highly correlated geochemistry of two major sources: local Aguada Cove on Suemez Island, and distant Mount Edziza, in the Coast Mountain range. Partial Least Squares Discriminant Analysis (PLS‐DA) models constructed with device‐specific portable X‐ray fluo…
Terminal Pleistocene human occupation of the upper Copper River basin, southern Alaska
After decades of debate, the homeland of the First Americans is now generally understood to be northeast Asia; however, the process of Late Pleistocene peopling remains unresolved. As more archaeological sites south of the continental ice sheets are discovered that predate the opening of the interior “ice-free” corridor, interest in a coastal Pacific dispersal route has grown, and previously overlooked regions proximal to the Pacific coast have b…
Archaeological evidence shows widespread human depopulation of Last Glacial Maximum Northeast Asia
Late Pleistocene and Early Holocene Obsidian in Alberta and Human Dispersal into North America’s Ice-Free Corridor
We utilize pXRF to source the oldest obsidian artifacts in Alberta, Canada. The province lacks obsidian outcrops and hosts much of the late Pleistocene Ice-Free Corridor, the northern and southern ends of which are in proximity to obsidian outcrops in Yukon, Alaska, Idaho, and Wyoming. The early presence of these obsidians in Alberta informs models of human dispersion. Results point to an early establishment of relationships in the central Ice-Fr…
Techno-spatial analysis of the obsidian productions at Dry Creek (Interior Alaska)
Interior Alaska is a key-region for studying long-distance circulation/use of obsidian. • This work focuses on Dry Creek, the largest obsidian assemblage in interior Alaska. • The data is the largest published sample size of source obsidian from a site in Alaska. • We analyze how artifacts from each obsidian sources were transported to the site. • We discuss the much-overlooked mid-Holocene component IV clusters. Interior Alaska is a key-region f…
Archaeology and ancient environmental studies (16 obras) · Geography (14 obras) · Archaeology (13 obras) · Pleistocene-Era Hominins and Archaeology (13 obras) · Indigenous Studies and Ecology (10 obras) · Geology (9 obras) · Holocene (7 obras) · Pleistocene (6 obras) · Paleontology (5 obras) · Population (5 obras)