Tom Guilderson
Dados Biográficos
| ID | 4054088 |
|---|---|
| NOME | Tom Guilderson |
| PRENOMES | Tom |
| SOBRENOME | Guilderson |
| ASSINATURA | GUILDERSON T |
| AFILIAÇÕES | Lawrence Livermore National Laboratory |
| VERIFICADO | Não |
| TOTAL DE OBRAS | 9 |
| TOTAL DE CITAÇÕES | 23 |
| TOTAL COMO AUTOR | 9 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 2000 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2013 |
| ÍNDICE H | 3 |
Developing robust age models for lake records
Conference Participants
From the 19th International Radiocarbon Conference held in Keble College, Oxford, England, April 3-7, 2006
Lower Pecos and Coahuila peyote
Rock Painting Depicting Re-incursion of Bison onto the South Texas Plains
We extracted carbon from a sample removed from a small, non-descript, solid monochrome pictograph at Painted Indian Cave site on the Pedernales River, Blanco County, Texas (41BC1). It contains red iron oxide pigment and is approximately 10-20 em in size. The sample was taken with a surgical scalpel with a new blade. Plasma-chemistry was utilized to extract the organic carbon, without getting contamination from inorganic carbon-bearing minerals, c…
Medieval Warming, Little Ice Age, and European impact on the environment during the last millennium in the lower Hudson Valley, New York, USA
Establishing natural climate variability becomes particularly important in large urban areas in anticipation of droughts. We present a well-dated bi-decadal record of vegetation, climate, land use, and fire frequency from a tidal marsh in the Hudson River Estuary. The classic Medieval Warm Period is evident through striking increases in charcoal and Pinus dominance from ∼800–1300 A.D., paralleling paleorecords southward along the Atlantic seaboar…
AMS Dates from Four Late Prehistoric Period Rock Art Sites in West Central Montana
In 2002, eight pigment samples were collected from three rock art sites in the Big Belt Mountains of west central Montana. Samples from Hellgate Gulch (24BW9), Avalanche Mouth (24BW19), and the Gates of the Mountains (24LC27) were dated using plasma-chemical extraction and accelerator mass spectrometry. The dates were statistically indistinguishable with ages of 11701 ± 45, 1225 ± 50, and 1280 1 ± 50 B.P. When calibrated, these ages range from 65…
Nondestructive Radiocarbon Dating
Plasma oxidation was used to obtain radiocarbon dates on six different materials from a naturally mummified baby bundle from the Lower Pecos River region of southwest Texas. This bundle was selected because it was thought to represent a single event and would illustrate the accuracy and precision of the plasma oxidation method. Five of the materials were clearly components of the original bundle with 13 dates combined to yield a weighted average …
Abrupt onset and termination of the African Humid Period
Coherent High- and Low-Latitude Climate Variability During the Holocene Warm Period
A faunal record of sea-surface temperature (SST) variations off West Africa documents a series of abrupt, millennial-scale cooling events, which punctuated the Holocene warm period. These events evidently resulted from increased southward advection of cooler temperate or subpolar waters to this subtropical location or from enhanced regional upwelling. The most recent of these events was the Little Ice Age, which occurred between 1300 to 1850 A.D.…
Lower Pecos and Coahuila peyote
AMS Dates from Four Late Prehistoric Period Rock Art Sites in West Central Montana
In 2002, eight pigment samples were collected from three rock art sites in the Big Belt Mountains of west central Montana. Samples from Hellgate Gulch (24BW9), Avalanche Mouth (24BW19), and the Gates of the Mountains (24LC27) were dated using plasma-chemical extraction and accelerator mass spectrometry. The dates were statistically indistinguishable with ages of 11701 ± 45, 1225 ± 50, and 1280 1 ± 50 B.P. When calibrated, these ages range from 65…
Nondestructive Radiocarbon Dating
Plasma oxidation was used to obtain radiocarbon dates on six different materials from a naturally mummified baby bundle from the Lower Pecos River region of southwest Texas. This bundle was selected because it was thought to represent a single event and would illustrate the accuracy and precision of the plasma oxidation method. Five of the materials were clearly components of the original bundle with 13 dates combined to yield a weighted average …
Abrupt onset and termination of the African Humid Period
Coherent High- and Low-Latitude Climate Variability During the Holocene Warm Period
A faunal record of sea-surface temperature (SST) variations off West Africa documents a series of abrupt, millennial-scale cooling events, which punctuated the Holocene warm period. These events evidently resulted from increased southward advection of cooler temperate or subpolar waters to this subtropical location or from enhanced regional upwelling. The most recent of these events was the Little Ice Age, which occurred between 1300 to 1850 A.D.…
Nondestructive Radiocarbon Dating
Plasma oxidation was used to obtain radiocarbon dates on six different materials from a naturally mummified baby bundle from the Lower Pecos River region of southwest Texas. This bundle was selected because it was thought to represent a single event and would illustrate the accuracy and precision of the plasma oxidation method. Five of the materials were clearly components of the original bundle with 13 dates combined to yield a weighted average …
Medieval Warming, Little Ice Age, and European impact on the environment during the last millennium in the lower Hudson Valley, New York, USA
Establishing natural climate variability becomes particularly important in large urban areas in anticipation of droughts. We present a well-dated bi-decadal record of vegetation, climate, land use, and fire frequency from a tidal marsh in the Hudson River Estuary. The classic Medieval Warm Period is evident through striking increases in charcoal and Pinus dominance from ∼800–1300 A.D., paralleling paleorecords southward along the Atlantic seaboar…
AMS Dates from Four Late Prehistoric Period Rock Art Sites in West Central Montana
In 2002, eight pigment samples were collected from three rock art sites in the Big Belt Mountains of west central Montana. Samples from Hellgate Gulch (24BW9), Avalanche Mouth (24BW19), and the Gates of the Mountains (24LC27) were dated using plasma-chemical extraction and accelerator mass spectrometry. The dates were statistically indistinguishable with ages of 11701 ± 45, 1225 ± 50, and 1280 1 ± 50 B.P. When calibrated, these ages range from 65…
Lower Pecos and Coahuila peyote
Rock Painting Depicting Re-incursion of Bison onto the South Texas Plains
We extracted carbon from a sample removed from a small, non-descript, solid monochrome pictograph at Painted Indian Cave site on the Pedernales River, Blanco County, Texas (41BC1). It contains red iron oxide pigment and is approximately 10-20 em in size. The sample was taken with a surgical scalpel with a new blade. Plasma-chemistry was utilized to extract the organic carbon, without getting contamination from inorganic carbon-bearing minerals, c…
Conference Participants
From the 19th International Radiocarbon Conference held in Keble College, Oxford, England, April 3-7, 2006
Developing robust age models for lake records
Geography (6 obras) · Geology (6 obras) · Geology and Paleoclimatology Research (6 obras) · Radiocarbon dating (6 obras) · Archaeology (5 obras) · Archaeology and ancient environmental studies (5 obras) · Geology (5 obras) · Climate change (3 obras) · Climatology (3 obras) · Oceanography (3 obras)