Barry E Scheetz
Biographic Data
| ID | 4053007 |
|---|---|
| NAME | Barry E Scheetz |
| GIVEN NAMES | Barry E |
| FAMILY NAME | Scheetz |
| SIGNATURE | SCHEETZ B E |
| AFFILIATIONS | Pennsylvania State University |
| VERIFIED | No |
| TOTAL WORKS | 10 |
| TOTAL CITATIONS | 72 |
| WORKS AS AUTHOR | 10 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1987 |
| LATEST PUBLICATION YEAR | 2021 |
| H-INDEX | 6 |
Sourcing the source
The construction of a road extension of Park Avenue through the Pennsylvania State University’s agricultural fields offered an opportunity to reinvestigate, in more detail, the Tudek jasper quarry site (36CE238). The original investigation was led by Dr. James Hatch and graduate students from the University’s Department of Anthropology. Initial studies yielded in excess of 27,000 artifacts that were used in this analysis. Our reinvestigation resu…
Mid‐Pleistocene pozzolanic volcanic ash in ancient Roman concretes
The extraordinarily durable concretes of Imperial Age (27 B.C. through 3rd century A.D.) monument construction in Rome contain scoriaceous, highly potassic, altered volcanic ash from the Pozzolane Rosse ignimbrite, erupted at 456±3ka from the Alban Hills volcano as pozzolanic mortar aggregate. Stratigraphic, micromorphological, and chemical investigations demonstrate that during the relatively warm, humid period preceding marine isotope stage 11,…
Assessment of material characteristics of ancient concretes, Grande Aula, Markets of Trajan, Rome
Approaching the Hatch Jasper Quarry From a Technological Perspective
Mitigation of the Hatch jasper quarry, a “prospect site” in Central Pennsylvania, has enabled the reconstruction of a local system of stone tool acquisition and production. Artifacts from the quarry and the nearby Houserville habitation complex were analyzed using an attribute-based stage typology. This technological approach permitted the separation of geofacts from artifacts, and revealed evidence suggesting that Houserville knappers obtained t…
The Chemical Composition of Jasper Artefacts from New England and the Middle Atlantic
Reply to Hughes
Hughes (1992) raises two points in his evaluation of our paper on Hopewell obsidian studies (Hatch et al. 1990): (a) Why did we not attempt to identify the several possible western United States sources from which our Hopewell specimens were derived, and (b) was it legitimate to report hydration-rim measurements with a.1 μm or less level of accuracy? These issues are addressed within the context of our initial research goals and through reference…
Hopewell Obsidian Studies
Specific questions regarding the antiquity of major midwestern Hopewell culture sites and their role in regional exchange systems are addressed in this paper through the dating (obsidian hydration) and compositional characterization (neutron activation analysis [NAA] and atomic absorption spectroscopy [AAS]) of obsidian artifacts. The analysis of 34 specimens from the Seip, Mound City, and Hopewell sites, Ohio, and the Naples site, Illinois, incr…
Obsidian Dating
The Role of Resolution and Sample Preparation in Hydration Rim Measurement
The role of the theoretical limit of resolution of optical microscopes is discussed in relation to obsidian rim age-date determinations. The resolution of the optics is shown to contribute an error of ± 20 percent. The error analysis identified the determination of the activation energy as the single step in the dating process that introduces the largest error
Obsidian Hydration Dating
A simple optical method is described that will enhance the color contrast between the outer birefringent hydration rind and the inner unhydrated core on obsidian thin sections used for hydration dating. The technique utilizes a gypsum nccessory plate. The gypsum plate rotates all incoming light by 550nm causing the black isotropic core of the nhsidian to become transparent first‐order pink and interacting with the transmitted light from the biref…
Assessment of material characteristics of ancient concretes, Grande Aula, Markets of Trajan, Rome
Obsidian Dating
Mid‐Pleistocene pozzolanic volcanic ash in ancient Roman concretes
The extraordinarily durable concretes of Imperial Age (27 B.C. through 3rd century A.D.) monument construction in Rome contain scoriaceous, highly potassic, altered volcanic ash from the Pozzolane Rosse ignimbrite, erupted at 456±3ka from the Alban Hills volcano as pozzolanic mortar aggregate. Stratigraphic, micromorphological, and chemical investigations demonstrate that during the relatively warm, humid period preceding marine isotope stage 11,…
The Role of Resolution and Sample Preparation in Hydration Rim Measurement
The role of the theoretical limit of resolution of optical microscopes is discussed in relation to obsidian rim age-date determinations. The resolution of the optics is shown to contribute an error of ± 20 percent. The error analysis identified the determination of the activation energy as the single step in the dating process that introduces the largest error
The Chemical Composition of Jasper Artefacts from New England and the Middle Atlantic
Approaching the Hatch Jasper Quarry From a Technological Perspective
Mitigation of the Hatch jasper quarry, a “prospect site” in Central Pennsylvania, has enabled the reconstruction of a local system of stone tool acquisition and production. Artifacts from the quarry and the nearby Houserville habitation complex were analyzed using an attribute-based stage typology. This technological approach permitted the separation of geofacts from artifacts, and revealed evidence suggesting that Houserville knappers obtained t…
Hopewell Obsidian Studies
Specific questions regarding the antiquity of major midwestern Hopewell culture sites and their role in regional exchange systems are addressed in this paper through the dating (obsidian hydration) and compositional characterization (neutron activation analysis [NAA] and atomic absorption spectroscopy [AAS]) of obsidian artifacts. The analysis of 34 specimens from the Seip, Mound City, and Hopewell sites, Ohio, and the Naples site, Illinois, incr…
Obsidian Hydration Dating
A simple optical method is described that will enhance the color contrast between the outer birefringent hydration rind and the inner unhydrated core on obsidian thin sections used for hydration dating. The technique utilizes a gypsum nccessory plate. The gypsum plate rotates all incoming light by 550nm causing the black isotropic core of the nhsidian to become transparent first‐order pink and interacting with the transmitted light from the biref…
Sourcing the source
The construction of a road extension of Park Avenue through the Pennsylvania State University’s agricultural fields offered an opportunity to reinvestigate, in more detail, the Tudek jasper quarry site (36CE238). The original investigation was led by Dr. James Hatch and graduate students from the University’s Department of Anthropology. Initial studies yielded in excess of 27,000 artifacts that were used in this analysis. Our reinvestigation resu…
Reply to Hughes
Hughes (1992) raises two points in his evaluation of our paper on Hopewell obsidian studies (Hatch et al. 1990): (a) Why did we not attempt to identify the several possible western United States sources from which our Hopewell specimens were derived, and (b) was it legitimate to report hydration-rim measurements with a.1 μm or less level of accuracy? These issues are addressed within the context of our initial research goals and through reference…
Obsidian Hydration Dating
A simple optical method is described that will enhance the color contrast between the outer birefringent hydration rind and the inner unhydrated core on obsidian thin sections used for hydration dating. The technique utilizes a gypsum nccessory plate. The gypsum plate rotates all incoming light by 550nm causing the black isotropic core of the nhsidian to become transparent first‐order pink and interacting with the transmitted light from the biref…
The Role of Resolution and Sample Preparation in Hydration Rim Measurement
The role of the theoretical limit of resolution of optical microscopes is discussed in relation to obsidian rim age-date determinations. The resolution of the optics is shown to contribute an error of ± 20 percent. The error analysis identified the determination of the activation energy as the single step in the dating process that introduces the largest error
Obsidian Dating
Hopewell Obsidian Studies
Specific questions regarding the antiquity of major midwestern Hopewell culture sites and their role in regional exchange systems are addressed in this paper through the dating (obsidian hydration) and compositional characterization (neutron activation analysis [NAA] and atomic absorption spectroscopy [AAS]) of obsidian artifacts. The analysis of 34 specimens from the Seip, Mound City, and Hopewell sites, Ohio, and the Naples site, Illinois, incr…
Reply to Hughes
Hughes (1992) raises two points in his evaluation of our paper on Hopewell obsidian studies (Hatch et al. 1990): (a) Why did we not attempt to identify the several possible western United States sources from which our Hopewell specimens were derived, and (b) was it legitimate to report hydration-rim measurements with a.1 μm or less level of accuracy? These issues are addressed within the context of our initial research goals and through reference…
The Chemical Composition of Jasper Artefacts from New England and the Middle Atlantic
Approaching the Hatch Jasper Quarry From a Technological Perspective
Mitigation of the Hatch jasper quarry, a “prospect site” in Central Pennsylvania, has enabled the reconstruction of a local system of stone tool acquisition and production. Artifacts from the quarry and the nearby Houserville habitation complex were analyzed using an attribute-based stage typology. This technological approach permitted the separation of geofacts from artifacts, and revealed evidence suggesting that Houserville knappers obtained t…
Mid‐Pleistocene pozzolanic volcanic ash in ancient Roman concretes
The extraordinarily durable concretes of Imperial Age (27 B.C. through 3rd century A.D.) monument construction in Rome contain scoriaceous, highly potassic, altered volcanic ash from the Pozzolane Rosse ignimbrite, erupted at 456±3ka from the Alban Hills volcano as pozzolanic mortar aggregate. Stratigraphic, micromorphological, and chemical investigations demonstrate that during the relatively warm, humid period preceding marine isotope stage 11,…
Assessment of material characteristics of ancient concretes, Grande Aula, Markets of Trajan, Rome
Sourcing the source
The construction of a road extension of Park Avenue through the Pennsylvania State University’s agricultural fields offered an opportunity to reinvestigate, in more detail, the Tudek jasper quarry site (36CE238). The original investigation was led by Dr. James Hatch and graduate students from the University’s Department of Anthropology. Initial studies yielded in excess of 27,000 artifacts that were used in this analysis. Our reinvestigation resu…
Archaeology (7 works) · Geography (6 works) · Geology (6 works) · Archaeology and ancient environmental studies (5 works) · Pleistocene-Era Hominins and Archaeology (4 works) · Building materials and conservation (3 works) · Geology (3 works) · History (3 works) · Maritime and Coastal Archaeology (3 works) · Materials Science (3 works)