Andrew Sillen
Dados Biográficos
| ID | 130333 |
|---|---|
| NOME | Andrew Sillen |
| PRENOMES | Andrew |
| SOBRENOME | Sillen |
| ASSINATURA | SILLEN A |
| AFILIAÇÕES | University of Cape Town |
| VERIFICADO | Não |
| TOTAL DE OBRAS | 25 |
| TOTAL DE CITAÇÕES | 409 |
| TOTAL COMO AUTOR | 25 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 1981 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2018 |
| ÍNDICE H | 11 |
Strontium isotopic aspects of Paranthropus robustus teeth; implications for habitat, residence, and growth
Sr/86Sr ratios in modern and fossil food-webs of the Sterkfontein Valley
From Lucy to Language
Automation of Solubility Profiles Using a Flow Cell
The solubility profile technique is a means of characterizing the mineral phase of bones and fossils from archaeological and palaeontological sites. The method is based on the differential dissolution of variously substituted apatites in acetate buffer at pH 4.5. The original solubility profile protocol, which involves repetitive washing and centrifuging, is extremely cumbersome and time‐consuming. Here we describe an alternative, automatic metho…
Physiological variability and Sr/Ca at Swartkrans
Diagenesis of Bones from Eland's Bay Cave
Diagenesis of bone from Border Cave
Diagenesis of Strontium in Fossil Bone
An Investigation of Barium, Calcium and Strontium as Palaeodietary Indicators in the Southwestern Cape, South Africa
Implications of the new accelerator date of the chared skeletons from Kebara Cave (Mt Carmel)
Sur la base du rapport de fouilles de E. Turville-Petre, les squelettes incinérés découverts à Kebara furent attribués à la couche С qui contenait une industrie microlithique, plus tard désignée kébarienne par D. Garrod. L'état carbonisé des squelettes permit une analyse Э С ainsi que des datations I4C. Auparavant les analyses Э С des ossements carbonisés avaient livré des valeurs entre — 20 à — 22 %. Une nouvelle datation C14 d'un échantillon d'…
Strontium-calcium ratios (Sr/Ca) of Australopithecus robustus and associated fauna from Swartkrans
Introduction to this issue
As a Dietary Indicator in Modern and Archaeological Bone
Solubility profiles of synthetic apatites and of modern and fossil bones
Chemistry and Paleodietary Research
While isotopic and elemental analyses of prehistoric skeletons have made an important contribution to paleodietary research over the last 10 years, certain problems in the application of these techniques only now are emerging. These problems, affecting both isotopic and trace-element studies, mainly are due to the peculiar interdisciplinary nature of the field, rather than to any technological barrier. With minor exceptions, techniques developed …
Abstracts — Second Symposium on Upper Paleolithic
Sr and Sr/Ca in marine and terrestrial foodwebs in the Southwestern Cape, South Africa
Elemental and isotopic analyses of mammalian fauna from Southern Africa and their implications for paleodietary research
Elemental analyses of mammalian bone (e.g., strontium‐calcium ratios, or Sr/Ca) distinguish between herbivores and carnivores; however, the relationships among herbivores are unclear. To study this question, a modern faunal sample from the Nagupande Tsetse Control Area (Zambezi drainage, Northwestern Zimbabwe) was used. This collection has the advantage of well‐established geographical controls in addition to a varied fauna, which includes both b…
Biogenic and diagenetic Sr/Ca in Plio-Pleistocene fossils of the Omo Shungura Formation
Under conditions of normal calcium metabolism, strontium/calcium ratios (Sr/Ca) have been shown to reflect the trophic level of contemporary and recent terrestrial fauna. These ratios therefore offer a potential means of studying fossil ecosystems and the diet of prehistoric humans. In cases in which suitable controls have demonstrated the preservation of biogenic Sr/Ca, it has been possible to investigate the proportionate importance of meat vs.…
Weaning patterns are reflected in strontium-calcium ratios of juvenile skeletons
Dietary change in the Epi-Paleolithic and Neolithic of the Levant
Site catchment surveys, dental-wear analyses and conventional archaeological studies have provided a complex, often contradictory picture of the diet of Natufian and other Epi-Paleolithic peoples. In order to clarify the variability and possible diachronic changes in diet during this period, strontium-calcium ratios (Sr/Ca) were determined for all Kebaran, Natufian and PPNA sites in the Levant from which appropriate faunal and human samples were …
Coca Chewing and High-Altitude Stress
Because the main present-day centres of coca chewing are in the high altiplano regions of Peru and Bolivia, it has been widely assumed that the habit evolved primarily as a response to the stresses of life at high altitudes. When archaeological, ethnohistorical, and botanical sources of evidence are considered, a different emphasis emerges. Before the European conquest, coca was chewed everywhere from Nicaragua to Chile and at all altitudes. This…
Strontium and paleodietary research
The measurement of skeletal strontium/calcium (Sr/Ca) ratios can provide information on the proportion of meat and vegetable foods in the diets of prehistoric peoples. This information is based in the well-documented reduction of Sr/Ca ratios in terrestrial food chains. The reduction, and therefore the paleodietary technique, is complicated by (a) differences in Sr/Ca ratios entering food chains, and (b) metabolic considerations such as age, preg…
Strontium and diet at Hayonim Cave
Faunal and human bones from the Natufian and Aurignacian levels of Hayonim Cave, Israel, were analyzed for calcium, strontium, and phosphate, in order to investigate the efficacy of strontium measurements for determining the proportion of meat in human diets. This site in the western Galilee was appropriate for a test of the technique since a)herbivore and carnivore fauna were present in numbers from two different time periods, b) well‐characteri…
Post-depositional changes in Natufian and Aurignacian Faunal Bones from Hayonim cave
Significant differences have been shown to exist in the trace-element composition of Hayonim Natufian and Aurignacian bones. The studies reported here were designed to further characterize these bones in order to more fully understand the degree and nature of post-depositional forces acting upon them. Natufian and Aurignacian faunal bones from Hayonim were found to differ in the preservation of histology, and density configurations, but not in ca…
As a Dietary Indicator in Modern and Archaeological Bone
Strontium-calcium ratios (Sr/Ca) of Australopithecus robustus and associated fauna from Swartkrans
Diagenesis of Bones from Eland's Bay Cave
Sr and Sr/Ca in marine and terrestrial foodwebs in the Southwestern Cape, South Africa
Strontium and diet at Hayonim Cave
Faunal and human bones from the Natufian and Aurignacian levels of Hayonim Cave, Israel, were analyzed for calcium, strontium, and phosphate, in order to investigate the efficacy of strontium measurements for determining the proportion of meat in human diets. This site in the western Galilee was appropriate for a test of the technique since a)herbivore and carnivore fauna were present in numbers from two different time periods, b) well‐characteri…
Diagenesis of bone from Border Cave
Solubility profiles of synthetic apatites and of modern and fossil bones
Diagenesis of Strontium in Fossil Bone
Chemistry and Paleodietary Research
While isotopic and elemental analyses of prehistoric skeletons have made an important contribution to paleodietary research over the last 10 years, certain problems in the application of these techniques only now are emerging. These problems, affecting both isotopic and trace-element studies, mainly are due to the peculiar interdisciplinary nature of the field, rather than to any technological barrier. With minor exceptions, techniques developed …
Weaning patterns are reflected in strontium-calcium ratios of juvenile skeletons
Elemental and isotopic analyses of mammalian fauna from Southern Africa and their implications for paleodietary research
Elemental analyses of mammalian bone (e.g., strontium‐calcium ratios, or Sr/Ca) distinguish between herbivores and carnivores; however, the relationships among herbivores are unclear. To study this question, a modern faunal sample from the Nagupande Tsetse Control Area (Zambezi drainage, Northwestern Zimbabwe) was used. This collection has the advantage of well‐established geographical controls in addition to a varied fauna, which includes both b…
Post-depositional changes in Natufian and Aurignacian Faunal Bones from Hayonim cave
Significant differences have been shown to exist in the trace-element composition of Hayonim Natufian and Aurignacian bones. The studies reported here were designed to further characterize these bones in order to more fully understand the degree and nature of post-depositional forces acting upon them. Natufian and Aurignacian faunal bones from Hayonim were found to differ in the preservation of histology, and density configurations, but not in ca…
An Investigation of Barium, Calcium and Strontium as Palaeodietary Indicators in the Southwestern Cape, South Africa
Dietary change in the Epi-Paleolithic and Neolithic of the Levant
Site catchment surveys, dental-wear analyses and conventional archaeological studies have provided a complex, often contradictory picture of the diet of Natufian and other Epi-Paleolithic peoples. In order to clarify the variability and possible diachronic changes in diet during this period, strontium-calcium ratios (Sr/Ca) were determined for all Kebaran, Natufian and PPNA sites in the Levant from which appropriate faunal and human samples were …
Implications of the new accelerator date of the chared skeletons from Kebara Cave (Mt Carmel)
Sur la base du rapport de fouilles de E. Turville-Petre, les squelettes incinérés découverts à Kebara furent attribués à la couche С qui contenait une industrie microlithique, plus tard désignée kébarienne par D. Garrod. L'état carbonisé des squelettes permit une analyse Э С ainsi que des datations I4C. Auparavant les analyses Э С des ossements carbonisés avaient livré des valeurs entre — 20 à — 22 %. Une nouvelle datation C14 d'un échantillon d'…
Coca Chewing and High-Altitude Stress
Because the main present-day centres of coca chewing are in the high altiplano regions of Peru and Bolivia, it has been widely assumed that the habit evolved primarily as a response to the stresses of life at high altitudes. When archaeological, ethnohistorical, and botanical sources of evidence are considered, a different emphasis emerges. Before the European conquest, coca was chewed everywhere from Nicaragua to Chile and at all altitudes. This…
Strontium isotopic aspects of Paranthropus robustus teeth; implications for habitat, residence, and growth
Introduction to this issue
Strontium and diet at Hayonim Cave
Faunal and human bones from the Natufian and Aurignacian levels of Hayonim Cave, Israel, were analyzed for calcium, strontium, and phosphate, in order to investigate the efficacy of strontium measurements for determining the proportion of meat in human diets. This site in the western Galilee was appropriate for a test of the technique since a)herbivore and carnivore fauna were present in numbers from two different time periods, b) well‐characteri…
Post-depositional changes in Natufian and Aurignacian Faunal Bones from Hayonim cave
Significant differences have been shown to exist in the trace-element composition of Hayonim Natufian and Aurignacian bones. The studies reported here were designed to further characterize these bones in order to more fully understand the degree and nature of post-depositional forces acting upon them. Natufian and Aurignacian faunal bones from Hayonim were found to differ in the preservation of histology, and density configurations, but not in ca…
Strontium and paleodietary research
The measurement of skeletal strontium/calcium (Sr/Ca) ratios can provide information on the proportion of meat and vegetable foods in the diets of prehistoric peoples. This information is based in the well-documented reduction of Sr/Ca ratios in terrestrial food chains. The reduction, and therefore the paleodietary technique, is complicated by (a) differences in Sr/Ca ratios entering food chains, and (b) metabolic considerations such as age, preg…
Coca Chewing and High-Altitude Stress
Because the main present-day centres of coca chewing are in the high altiplano regions of Peru and Bolivia, it has been widely assumed that the habit evolved primarily as a response to the stresses of life at high altitudes. When archaeological, ethnohistorical, and botanical sources of evidence are considered, a different emphasis emerges. Before the European conquest, coca was chewed everywhere from Nicaragua to Chile and at all altitudes. This…
Weaning patterns are reflected in strontium-calcium ratios of juvenile skeletons
Dietary change in the Epi-Paleolithic and Neolithic of the Levant
Site catchment surveys, dental-wear analyses and conventional archaeological studies have provided a complex, often contradictory picture of the diet of Natufian and other Epi-Paleolithic peoples. In order to clarify the variability and possible diachronic changes in diet during this period, strontium-calcium ratios (Sr/Ca) were determined for all Kebaran, Natufian and PPNA sites in the Levant from which appropriate faunal and human samples were …
Biogenic and diagenetic Sr/Ca in Plio-Pleistocene fossils of the Omo Shungura Formation
Under conditions of normal calcium metabolism, strontium/calcium ratios (Sr/Ca) have been shown to reflect the trophic level of contemporary and recent terrestrial fauna. These ratios therefore offer a potential means of studying fossil ecosystems and the diet of prehistoric humans. In cases in which suitable controls have demonstrated the preservation of biogenic Sr/Ca, it has been possible to investigate the proportionate importance of meat vs.…
Abstracts — Second Symposium on Upper Paleolithic
Sr and Sr/Ca in marine and terrestrial foodwebs in the Southwestern Cape, South Africa
Elemental and isotopic analyses of mammalian fauna from Southern Africa and their implications for paleodietary research
Elemental analyses of mammalian bone (e.g., strontium‐calcium ratios, or Sr/Ca) distinguish between herbivores and carnivores; however, the relationships among herbivores are unclear. To study this question, a modern faunal sample from the Nagupande Tsetse Control Area (Zambezi drainage, Northwestern Zimbabwe) was used. This collection has the advantage of well‐established geographical controls in addition to a varied fauna, which includes both b…
Chemistry and Paleodietary Research
While isotopic and elemental analyses of prehistoric skeletons have made an important contribution to paleodietary research over the last 10 years, certain problems in the application of these techniques only now are emerging. These problems, affecting both isotopic and trace-element studies, mainly are due to the peculiar interdisciplinary nature of the field, rather than to any technological barrier. With minor exceptions, techniques developed …
Introduction to this issue
As a Dietary Indicator in Modern and Archaeological Bone
Solubility profiles of synthetic apatites and of modern and fossil bones
Strontium-calcium ratios (Sr/Ca) of Australopithecus robustus and associated fauna from Swartkrans
Implications of the new accelerator date of the chared skeletons from Kebara Cave (Mt Carmel)
Sur la base du rapport de fouilles de E. Turville-Petre, les squelettes incinérés découverts à Kebara furent attribués à la couche С qui contenait une industrie microlithique, plus tard désignée kébarienne par D. Garrod. L'état carbonisé des squelettes permit une analyse Э С ainsi que des datations I4C. Auparavant les analyses Э С des ossements carbonisés avaient livré des valeurs entre — 20 à — 22 %. Une nouvelle datation C14 d'un échantillon d'…
An Investigation of Barium, Calcium and Strontium as Palaeodietary Indicators in the Southwestern Cape, South Africa
Diagenesis of Strontium in Fossil Bone
Physiological variability and Sr/Ca at Swartkrans
Diagenesis of Bones from Eland's Bay Cave
Diagenesis of bone from Border Cave
From Lucy to Language
Automation of Solubility Profiles Using a Flow Cell
The solubility profile technique is a means of characterizing the mineral phase of bones and fossils from archaeological and palaeontological sites. The method is based on the differential dissolution of variously substituted apatites in acetate buffer at pH 4.5. The original solubility profile protocol, which involves repetitive washing and centrifuging, is extremely cumbersome and time‐consuming. Here we describe an alternative, automatic metho…
Sr/86Sr ratios in modern and fossil food-webs of the Sterkfontein Valley
Strontium isotopic aspects of Paranthropus robustus teeth; implications for habitat, residence, and growth
Pleistocene-Era Hominins and Archaeology (17 obras) · Archaeology (13 obras) · Archaeology and ancient environmental studies (13 obras) · Chemistry (13 obras) · Geography (13 obras) · Biology (12 obras) · Geology (12 obras) · Strontium (11 obras) · Ecology (10 obras) · Forensic Anthropology and Bioarchaeology Studies (10 obras)