James S Frye
Biographic Data
| ID | 4055804 |
|---|---|
| NAME | James S Frye |
| GIVEN NAMES | James S |
| FAMILY NAME | Frye |
| SIGNATURE | FRYE J S |
| AFFILIATIONS | Colorado State University |
| VERIFIED | No |
| TOTAL WORKS | 6 |
| TOTAL CITATIONS | 24 |
| AUTHOR COUNT | 6 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1985 |
| LATEST PUBLICATION YEAR | 1994 |
| H-INDEX | 3 |
Amber and Jet From Tipu, Belize
The C-13 nuclear magnetic resonance spectra of amber and jet beads found at Tipu, a Colonial-period Maya site in Belize, Central America, indicate that these materials are of European origin. The two jet beads were found in association with the burial of children in a Christian cemetery, and the single amber bead was in a midden from the early years of Spanish occupation. Both the cemetery and the midden probably date to the late sixteenth centur…
Recent and fossil resins from New Zealand and Australia
The carbon‐13 nuclear magnetic resonance spectra of fossil resins from New Zealand and Australia have been compared with those of modern and semifossilized materials. The great majority of the fossilized samples have strong spectral similarities to modern Agathis resins and to North American fossil resins, which have been attributed to Agathis. The Agathis ‐related spectra are different from those of modern Hymenaea and Araucaria. A small subgrou…
The Provenance and Coal Rank of Jet by Carbon‐13 Nuclear Magnetic Resonance Spectroscopy
The carbon‐13 nuclear magnetic resonance spectra of jet samples from England and Spain resemble those of carbonaceous materials from lignitic and sub‐bituminous ranks. This characterization is based on the aromatic/aliphatic ratio of resonances and on the pattern of fine structure. Particularly characteristic of jet is the well‐defined fine structure in the aromatic region that may be attributed to phenolic functionalities. This fine structure is…
The Structure of Oriental Lacquer by Solid State Nuclear Magnetic Resonance Spectroscopy
Analysis of North American amber by carbon‐13 NMR spectroscopy
Amber from the Cretaceous and Tertiary periods in North America is characterized for the first time by nuclear magnetic resonance spectroscopy. Cretaceous samples from Cedar Lake in western Canada have nearly identical spectra to samples from New Jersey. There also are strong similarities between the spectra of these samples and those from Alaska and from the state of Washington. Tertiary samples from Arkansas, on the other hand, have quite disti…
Amber From the Dominican Republic
The carbon‐13 NMR spectra of amber from several mining sites in the Dominican Republic show considerable variation. In certain cases the differences are sufficiently distinct to serve as a reliable indicator of provenance. The gradations within the resonances of unsaturated carbons may reflect the relative ages of the samples, because fossilization and diagenesis can remove this functionality
Amber From the Dominican Republic
The carbon‐13 NMR spectra of amber from several mining sites in the Dominican Republic show considerable variation. In certain cases the differences are sufficiently distinct to serve as a reliable indicator of provenance. The gradations within the resonances of unsaturated carbons may reflect the relative ages of the samples, because fossilization and diagenesis can remove this functionality
The Provenance and Coal Rank of Jet by Carbon‐13 Nuclear Magnetic Resonance Spectroscopy
The carbon‐13 nuclear magnetic resonance spectra of jet samples from England and Spain resemble those of carbonaceous materials from lignitic and sub‐bituminous ranks. This characterization is based on the aromatic/aliphatic ratio of resonances and on the pattern of fine structure. Particularly characteristic of jet is the well‐defined fine structure in the aromatic region that may be attributed to phenolic functionalities. This fine structure is…
Analysis of North American amber by carbon‐13 NMR spectroscopy
Amber from the Cretaceous and Tertiary periods in North America is characterized for the first time by nuclear magnetic resonance spectroscopy. Cretaceous samples from Cedar Lake in western Canada have nearly identical spectra to samples from New Jersey. There also are strong similarities between the spectra of these samples and those from Alaska and from the state of Washington. Tertiary samples from Arkansas, on the other hand, have quite disti…
Amber and Jet From Tipu, Belize
The C-13 nuclear magnetic resonance spectra of amber and jet beads found at Tipu, a Colonial-period Maya site in Belize, Central America, indicate that these materials are of European origin. The two jet beads were found in association with the burial of children in a Christian cemetery, and the single amber bead was in a midden from the early years of Spanish occupation. Both the cemetery and the midden probably date to the late sixteenth centur…
Recent and fossil resins from New Zealand and Australia
The carbon‐13 nuclear magnetic resonance spectra of fossil resins from New Zealand and Australia have been compared with those of modern and semifossilized materials. The great majority of the fossilized samples have strong spectral similarities to modern Agathis resins and to North American fossil resins, which have been attributed to Agathis. The Agathis ‐related spectra are different from those of modern Hymenaea and Araucaria. A small subgrou…
The Structure of Oriental Lacquer by Solid State Nuclear Magnetic Resonance Spectroscopy
Amber From the Dominican Republic
The carbon‐13 NMR spectra of amber from several mining sites in the Dominican Republic show considerable variation. In certain cases the differences are sufficiently distinct to serve as a reliable indicator of provenance. The gradations within the resonances of unsaturated carbons may reflect the relative ages of the samples, because fossilization and diagenesis can remove this functionality
Analysis of North American amber by carbon‐13 NMR spectroscopy
Amber from the Cretaceous and Tertiary periods in North America is characterized for the first time by nuclear magnetic resonance spectroscopy. Cretaceous samples from Cedar Lake in western Canada have nearly identical spectra to samples from New Jersey. There also are strong similarities between the spectra of these samples and those from Alaska and from the state of Washington. Tertiary samples from Arkansas, on the other hand, have quite disti…
The Structure of Oriental Lacquer by Solid State Nuclear Magnetic Resonance Spectroscopy
The Provenance and Coal Rank of Jet by Carbon‐13 Nuclear Magnetic Resonance Spectroscopy
The carbon‐13 nuclear magnetic resonance spectra of jet samples from England and Spain resemble those of carbonaceous materials from lignitic and sub‐bituminous ranks. This characterization is based on the aromatic/aliphatic ratio of resonances and on the pattern of fine structure. Particularly characteristic of jet is the well‐defined fine structure in the aromatic region that may be attributed to phenolic functionalities. This fine structure is…
Recent and fossil resins from New Zealand and Australia
The carbon‐13 nuclear magnetic resonance spectra of fossil resins from New Zealand and Australia have been compared with those of modern and semifossilized materials. The great majority of the fossilized samples have strong spectral similarities to modern Agathis resins and to North American fossil resins, which have been attributed to Agathis. The Agathis ‐related spectra are different from those of modern Hymenaea and Araucaria. A small subgrou…
Amber and Jet From Tipu, Belize
The C-13 nuclear magnetic resonance spectra of amber and jet beads found at Tipu, a Colonial-period Maya site in Belize, Central America, indicate that these materials are of European origin. The two jet beads were found in association with the burial of children in a Christian cemetery, and the single amber bead was in a midden from the early years of Spanish occupation. Both the cemetery and the midden probably date to the late sixteenth centur…
Geology (5 works) · Physics (5 works) · Paleontology (4 works) · Archaeology (3 works) · Carbon fibers (3 works) · Fossil Insects in Amber (3 works) · History (3 works) · Materials Science (3 works) · Nuclear magnetic resonance (3 works) · Spectral line (3 works)