Timothy W Linick
Datos Biográficos
| ID | 5599475 |
|---|---|
| NOMBRE | Timothy W Linick |
| NOMBRES | Timothy W |
| APELLIDO | Linick |
| FIRMA | LINICK T W |
| VERIFICADO | No |
| TOTAL DE OBRAS | 5 |
| TOTAL DE CITAS | 53 |
| TOTAL COMO AUTOR | 5 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 1980 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 1989 |
| ÍNDICE H | 3 |
Fine and Hyperfine Structure in the Spectrum of Secular Variations of Atmospheric 14C
The coarse structure of the 14 C spectrum consists of a secular trend curve that may be closely fit by a sinusoidal curve with period ca 11,000 yr and half amplitude ±51. This long-term trend is the result of changes in the earth's geomagnetic dipole moment. Consequently, it modulates solar components of the 14 C spectrum but does not appear to modulate a component of the spectrum of ca 2300-yr period. The ca 2300-yr period is of uncertain origin…
Radiocarbon and Cation-Radio Ages for Rock Varnish on Tioga and Tahoe Marainal Boulders of Pine Creek, Eastern Sierra Nevada, California, and their Paleoclimatic Implications
Accelerator mass spectrometry 14 C analyses of organic matter extracted from rock varnishes on morainal boulders yield limiting minimum ages for three crests of the Tioga glaciation. At Pine Creek in the eastern Sierra Nevada, varnish started to form on boulders of the outermost Tioga moraine before 19,000 yr B.P., and varnish originated on the innermost Tioga moraine before 13,200 yr B.P. Comparisons with lake-level, paleohydrological, paleoecol…
High-Precision Radiocarbon Dating of Bristlecone Pine from 6554 to 5350 BC
New results of radiocarbon dating of ca 100 decadal bristlecone pine samples from 6554 BC to 6084 BC and from 5820 to 5350 BC are presented. Using 3 new 2.5L counters filled to ca 3atm with carbon dioxide, high-precision dating has been performed by this laboratory for more than two years. Demonstration of the precision and accuracy of these counters is presented using ±2‰ measurements from the Spörer minimum period. For the older samples, ±3‰ me…
Geomagnetic-Heliomagnetic Modulation of Atmospheric Radiocarbon Production
New Arizona high precision Δ 14 C data back to 6500 BC plot close to an 11,300-yr period sinusoid extrapolated from the post 5300 BC data (offset = +32‰, half amplitude = 51‰ and phase lag = 2.29 radians). The trend curve is modulated by high latitude components of the non-dipole field with a fundamental period of 2400 yr. Based upon a model of Lund and Banerjee (1985), the non-dipole field rotates and every 1200 yr the high latitude maxima pass …
Bomb-Produced Carbon-14 in the Surface Water of the Pacific Ocean
The distribution of 14 C concentrations in the dissolved inorganic carbon in the surface waters of the Pacific Ocean is shown to have a primarily latitudinal pattern with Δ 14 C maxima at mid-latitudes in both hemispheres and a minimum at the equator. Oceanographic causes of this phenomenon are discussed
High-Precision Radiocarbon Dating of Bristlecone Pine from 6554 to 5350 BC
New results of radiocarbon dating of ca 100 decadal bristlecone pine samples from 6554 BC to 6084 BC and from 5820 to 5350 BC are presented. Using 3 new 2.5L counters filled to ca 3atm with carbon dioxide, high-precision dating has been performed by this laboratory for more than two years. Demonstration of the precision and accuracy of these counters is presented using ±2‰ measurements from the Spörer minimum period. For the older samples, ±3‰ me…
Fine and Hyperfine Structure in the Spectrum of Secular Variations of Atmospheric 14C
The coarse structure of the 14 C spectrum consists of a secular trend curve that may be closely fit by a sinusoidal curve with period ca 11,000 yr and half amplitude ±51. This long-term trend is the result of changes in the earth's geomagnetic dipole moment. Consequently, it modulates solar components of the 14 C spectrum but does not appear to modulate a component of the spectrum of ca 2300-yr period. The ca 2300-yr period is of uncertain origin…
Bomb-Produced Carbon-14 in the Surface Water of the Pacific Ocean
The distribution of 14 C concentrations in the dissolved inorganic carbon in the surface waters of the Pacific Ocean is shown to have a primarily latitudinal pattern with Δ 14 C maxima at mid-latitudes in both hemispheres and a minimum at the equator. Oceanographic causes of this phenomenon are discussed
Geomagnetic-Heliomagnetic Modulation of Atmospheric Radiocarbon Production
New Arizona high precision Δ 14 C data back to 6500 BC plot close to an 11,300-yr period sinusoid extrapolated from the post 5300 BC data (offset = +32‰, half amplitude = 51‰ and phase lag = 2.29 radians). The trend curve is modulated by high latitude components of the non-dipole field with a fundamental period of 2400 yr. Based upon a model of Lund and Banerjee (1985), the non-dipole field rotates and every 1200 yr the high latitude maxima pass …
Bomb-Produced Carbon-14 in the Surface Water of the Pacific Ocean
The distribution of 14 C concentrations in the dissolved inorganic carbon in the surface waters of the Pacific Ocean is shown to have a primarily latitudinal pattern with Δ 14 C maxima at mid-latitudes in both hemispheres and a minimum at the equator. Oceanographic causes of this phenomenon are discussed
High-Precision Radiocarbon Dating of Bristlecone Pine from 6554 to 5350 BC
New results of radiocarbon dating of ca 100 decadal bristlecone pine samples from 6554 BC to 6084 BC and from 5820 to 5350 BC are presented. Using 3 new 2.5L counters filled to ca 3atm with carbon dioxide, high-precision dating has been performed by this laboratory for more than two years. Demonstration of the precision and accuracy of these counters is presented using ±2‰ measurements from the Spörer minimum period. For the older samples, ±3‰ me…
Geomagnetic-Heliomagnetic Modulation of Atmospheric Radiocarbon Production
New Arizona high precision Δ 14 C data back to 6500 BC plot close to an 11,300-yr period sinusoid extrapolated from the post 5300 BC data (offset = +32‰, half amplitude = 51‰ and phase lag = 2.29 radians). The trend curve is modulated by high latitude components of the non-dipole field with a fundamental period of 2400 yr. Based upon a model of Lund and Banerjee (1985), the non-dipole field rotates and every 1200 yr the high latitude maxima pass …
Radiocarbon and Cation-Radio Ages for Rock Varnish on Tioga and Tahoe Marainal Boulders of Pine Creek, Eastern Sierra Nevada, California, and their Paleoclimatic Implications
Accelerator mass spectrometry 14 C analyses of organic matter extracted from rock varnishes on morainal boulders yield limiting minimum ages for three crests of the Tioga glaciation. At Pine Creek in the eastern Sierra Nevada, varnish started to form on boulders of the outermost Tioga moraine before 19,000 yr B.P., and varnish originated on the innermost Tioga moraine before 13,200 yr B.P. Comparisons with lake-level, paleohydrological, paleoecol…
Fine and Hyperfine Structure in the Spectrum of Secular Variations of Atmospheric 14C
The coarse structure of the 14 C spectrum consists of a secular trend curve that may be closely fit by a sinusoidal curve with period ca 11,000 yr and half amplitude ±51. This long-term trend is the result of changes in the earth's geomagnetic dipole moment. Consequently, it modulates solar components of the 14 C spectrum but does not appear to modulate a component of the spectrum of ca 2300-yr period. The ca 2300-yr period is of uncertain origin…
Radiocarbon dating (4 obras) · Geology (3 obras) · Paleontology (3 obras) · Amplitude (2 obras) · Archaeology (2 obras) · Astrophysics (2 obras) · Atmospheric sciences (2 obras) · Dipole (2 obras) · Earth's magnetic field (2 obras) · Geomagnetism and Paleomagnetism Studies (2 obras)