Plasma oxidation for 14C sampling utilizes low-pressure (133 Pa), low-energy (<50 W), and low-... more Plasma oxidation for 14C sampling utilizes low-pressure (133 Pa), low-energy (<50 W), and low- temperature (<50°C) Ar- and O2-plasmas generating CO2 for AMS dating. O2-plasmas on empty chambers remove organic contamination. When clean, a new specimen is inserted and Ar-plasmas dislodge adsorbed atmospheric CO2 from surfaces. Finally, O2-plasmas oxidize organic materials to CO2 for AMS analysis. During some Ar-plasmas we observed anomalous pressure increases and unexpectedly high CO2. Residual gas analysis detected water, hydrogen and oxygen species with Ar and CO2 indicating water plasmas that produced excited oxygen species that prematurely oxidized specimen organic matter. Evolution of excess CO2 during Ar cleaning compromises the ability to affirm that atmospheric CO2 was removed. Standards, TIRI Belfast Pine and VIRI I Whalebone, were dated to determine whether water-induced oxidation was a confounding influence in dating. TIRI wood was sampled twice, once a water-soaked s...
This talk was presented at the Canyons of the Ancients National Monument Visitor Center in Dolore... more This talk was presented at the Canyons of the Ancients National Monument Visitor Center in Dolores, Colorado
... hierarchy;red ware Abstract: Richard Wilshusen has described a range of ritual features that ... more ... hierarchy;red ware Abstract: Richard Wilshusen has described a range of ritual features that occur in Anasazi pit structures and has argued that different combinations of these features define a hierarchy of ritual activity within villages (such as corporate and community kivas). ...
Abstract Mixed collections are ubiquitous in archaeology. Multiple linear regression provides one... more Abstract Mixed collections are ubiquitous in archaeology. Multiple linear regression provides one means for partitioning mixed archaeological collections into their constituent components. The technique estimates the best combination of specified sets of sources in the composition of a mixed whole. As applied to ceramic collections, this technique has proven successful in solving complex dating problems. Used in conjunction with sherd collections obtained through probabilistic sampling, the technique can be extended to ...
U.S. Bureau of Reclamation, Salt Lake City, Utah; Engineering and Research Center, Denver, Colora... more U.S. Bureau of Reclamation, Salt Lake City, Utah; Engineering and Research Center, Denver, Colorado. University of Colorado, Dolores Archaeological Program. Contract No. 8-07-40-S0562.
The Northern San Juan (or Mesa Verde) region refers to the northernmost extension of the Anasazi.... more The Northern San Juan (or Mesa Verde) region refers to the northernmost extension of the Anasazi. This region includes most of the areas drained by the northern tributaries of the San Juan River (fig. 3.1). The confluence of the Colorado and San Juan rivers forms the ...
U.S. Bureau of Reclamation, Salt Lake City, Utah; Engineering and Research Center, Denver, Colora... more U.S. Bureau of Reclamation, Salt Lake City, Utah; Engineering and Research Center, Denver, Colorado. University of Colorado, Dolores Archaeological Program. Contract No. 8-07-40-S0562
12 Noon in the CNMA conference room, 7 Old Cochiti Rd, first left off of Caja del Rio Rd. The clo... more 12 Noon in the CNMA conference room, 7 Old Cochiti Rd, first left off of Caja del Rio Rd. The close of 2015 brought the long anticipated installation of the first of five pieces of public art at the Center for New Mexico Archaeology. The Tammy Garcia bronze, Panshara, resides in the entryway, greeting MIAC and OAS staff as well as visitors to the building. The remaining pieces selected through the Art in Public Places program will be installed over the next several months, both outside and inside the building.
The peoples of the American Southwest during the 13th through the 17th centuries witnessed dramat... more The peoples of the American Southwest during the 13th through the 17th centuries witnessed dramatic changes in settlement size, exchange relationships, ideology, social organization, and migrations that included those of the first European settlers. Concomitant with these world-shaking events, communities of potters began producing new kinds of wares particularly polychrome and glaze-paint decorated pottery that entailed new technologies and new materials. The contributors to this volume present results of their collaborative research into the production and distribution of these new wares, including cutting-edge chemical and petrographic analyses. They use the insights gained to reflect on the changing nature of communities of potters as they participated in the dynamic social conditions of their world."
This volume characterizes, analyzes, and synthesizes data recovered from the initial excavations ... more This volume characterizes, analyzes, and synthesizes data recovered from the initial excavations of the Hoko River archaeological site (45CA213) and sets the framework for ongoing research on this Northwest Coast wet site [see Croes 1995 for final report including 8 more summer seasons of excavation]. The important features of the site are many: it is a water-saturated archaeological site with excellent preservation of many types of perishable artifacts not normally recovered on the Northwest Coast; it is an early site, dating to 2,500 years BP [dates in final report show 3,000 years BP after additional excavation].; it represents a major fishing station, providing information on the fishing technologies of these early coastal people; an finally, some of the preserved artifacts are stylistically sensitive and can be compared with similar artifacts from other Northwest Coast wet sites, providing evidence for cultural relationships through time and across space.
Plasma oxidation for 14C sampling utilizes low-pressure (133 Pa), low-energy (<50 W), and low-... more Plasma oxidation for 14C sampling utilizes low-pressure (133 Pa), low-energy (<50 W), and low- temperature (<50°C) Ar- and O2-plasmas generating CO2 for AMS dating. O2-plasmas on empty chambers remove organic contamination. When clean, a new specimen is inserted and Ar-plasmas dislodge adsorbed atmospheric CO2 from surfaces. Finally, O2-plasmas oxidize organic materials to CO2 for AMS analysis. During some Ar-plasmas we observed anomalous pressure increases and unexpectedly high CO2. Residual gas analysis detected water, hydrogen and oxygen species with Ar and CO2 indicating water plasmas that produced excited oxygen species that prematurely oxidized specimen organic matter. Evolution of excess CO2 during Ar cleaning compromises the ability to affirm that atmospheric CO2 was removed. Standards, TIRI Belfast Pine and VIRI I Whalebone, were dated to determine whether water-induced oxidation was a confounding influence in dating. TIRI wood was sampled twice, once a water-soaked s...
This talk was presented at the Canyons of the Ancients National Monument Visitor Center in Dolore... more This talk was presented at the Canyons of the Ancients National Monument Visitor Center in Dolores, Colorado
... hierarchy;red ware Abstract: Richard Wilshusen has described a range of ritual features that ... more ... hierarchy;red ware Abstract: Richard Wilshusen has described a range of ritual features that occur in Anasazi pit structures and has argued that different combinations of these features define a hierarchy of ritual activity within villages (such as corporate and community kivas). ...
Abstract Mixed collections are ubiquitous in archaeology. Multiple linear regression provides one... more Abstract Mixed collections are ubiquitous in archaeology. Multiple linear regression provides one means for partitioning mixed archaeological collections into their constituent components. The technique estimates the best combination of specified sets of sources in the composition of a mixed whole. As applied to ceramic collections, this technique has proven successful in solving complex dating problems. Used in conjunction with sherd collections obtained through probabilistic sampling, the technique can be extended to ...
U.S. Bureau of Reclamation, Salt Lake City, Utah; Engineering and Research Center, Denver, Colora... more U.S. Bureau of Reclamation, Salt Lake City, Utah; Engineering and Research Center, Denver, Colorado. University of Colorado, Dolores Archaeological Program. Contract No. 8-07-40-S0562.
The Northern San Juan (or Mesa Verde) region refers to the northernmost extension of the Anasazi.... more The Northern San Juan (or Mesa Verde) region refers to the northernmost extension of the Anasazi. This region includes most of the areas drained by the northern tributaries of the San Juan River (fig. 3.1). The confluence of the Colorado and San Juan rivers forms the ...
U.S. Bureau of Reclamation, Salt Lake City, Utah; Engineering and Research Center, Denver, Colora... more U.S. Bureau of Reclamation, Salt Lake City, Utah; Engineering and Research Center, Denver, Colorado. University of Colorado, Dolores Archaeological Program. Contract No. 8-07-40-S0562
12 Noon in the CNMA conference room, 7 Old Cochiti Rd, first left off of Caja del Rio Rd. The clo... more 12 Noon in the CNMA conference room, 7 Old Cochiti Rd, first left off of Caja del Rio Rd. The close of 2015 brought the long anticipated installation of the first of five pieces of public art at the Center for New Mexico Archaeology. The Tammy Garcia bronze, Panshara, resides in the entryway, greeting MIAC and OAS staff as well as visitors to the building. The remaining pieces selected through the Art in Public Places program will be installed over the next several months, both outside and inside the building.
The peoples of the American Southwest during the 13th through the 17th centuries witnessed dramat... more The peoples of the American Southwest during the 13th through the 17th centuries witnessed dramatic changes in settlement size, exchange relationships, ideology, social organization, and migrations that included those of the first European settlers. Concomitant with these world-shaking events, communities of potters began producing new kinds of wares particularly polychrome and glaze-paint decorated pottery that entailed new technologies and new materials. The contributors to this volume present results of their collaborative research into the production and distribution of these new wares, including cutting-edge chemical and petrographic analyses. They use the insights gained to reflect on the changing nature of communities of potters as they participated in the dynamic social conditions of their world."
This volume characterizes, analyzes, and synthesizes data recovered from the initial excavations ... more This volume characterizes, analyzes, and synthesizes data recovered from the initial excavations of the Hoko River archaeological site (45CA213) and sets the framework for ongoing research on this Northwest Coast wet site [see Croes 1995 for final report including 8 more summer seasons of excavation]. The important features of the site are many: it is a water-saturated archaeological site with excellent preservation of many types of perishable artifacts not normally recovered on the Northwest Coast; it is an early site, dating to 2,500 years BP [dates in final report show 3,000 years BP after additional excavation].; it represents a major fishing station, providing information on the fishing technologies of these early coastal people; an finally, some of the preserved artifacts are stylistically sensitive and can be compared with similar artifacts from other Northwest Coast wet sites, providing evidence for cultural relationships through time and across space.
Uploads
Papers by Eric Blinman