John A Webb
Biographic Data
| ID | 358353 |
|---|---|
| NAME | John A Webb |
| GIVEN NAMES | John A |
| FAMILY NAME | Webb |
| SIGNATURE | WEBB J A |
| AFFILIATIONS | La Trobe University |
| ORCID | 0000-0002-6357-5966 |
| VERIFIED | Yes |
| TOTAL WORKS | 35 |
| TOTAL CITATIONS | 264 |
| AUTHOR COUNT | 35 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1982 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 8 |
Associations between child protective services workers’ attitudes toward kinship foster care placement, sociodemographic characteristics, and job characteristics
The archaeology of eastern Lutruwita (Tasmania)
Fifty years have passed since the first systematic archaeological surveys and excavations were conducted in Lutruwita (Tasmania). Despite numerous Late Pleistocene archaeological discoveries in the southwest region, no indisputable pre‐Holocene sites have been found in eastern Tasmania. This profound difference raises questions about how Aboriginal people utilised the Lutruwita landscape; first as a projecting peninsula into the Southern Ocean an…
Facets of Variation: Macrocrystalline quartz reduction at Moolarben, central NSW, Australia
Macrocrystalline quartz is an abundant raw material used widely for artefact manufacture. In Australia its procurement, reduction and use are now considered more complex than previously thought. The analysis of a mid-late Holocene assemblage from Moolarben in eastern Australia demonstrates how geoarchaeological variability influences the manufacture of macrocrystalline quartz artefacts. The different flaking proprieties of the three available mac…
Wadi Hammeh 27: An Open-air ‘Base-camp’ on the Fringe of the Natufian ‘Homeland’
Effect of surface weathering on portable X‐Ray fluorescence analysis of artefacts: Evidence from Tasmanian hornfels
Hornfels was commonly utilised by Aboriginal people in southeastern Tasmania for stone artefact manufacture. Sourcing of hornfels artefacts in this region using pXRF analysis is potentially compromised by the weathering patina generally present on this lithology. To understand the impact of weathering on hornfels composition, the mineralogy and chemical composition of weathered and unweathered hornfels were analysed, and weathering was simulated …
Cherts and prehistory in the Near East… recent advances: An introduction
Wala-gaay Guwingal: A twentieth century Aboriginal culturally modified tree with an embedded stone tool
Aboriginal culturally modified trees are a distinctive feature of the Australian archaeological record, generating insights into Aboriginal interactions with wood and bark, which rarely survive in archaeological contexts. However, they are under-studied, in decline and typically presumed to pre-date the 20th century. Here we investigate the origin of a scar with a stone tool embedded in the scar overgrowth, located in the Central Tablelands, New …
Sourcing hornfels artefacts in eastern Tasmania: Understanding Aboriginal mobility in a lithic-rich landscape
Wadi Hammeh 27: An Open-air ‘Base-camp’ on the Fringe of the Natufian ‘Homeland’
Elemental differences: Geochemical identification of aboriginal silcrete sources in the Arcadia Valley, eastern Australia
Paleochannels and Patches: A Geoarchaeological Assessment of Silcrete Sources in the Cumberland Plain, Eastern Australia
Although Aboriginal occupation dates to the Pleistocene, silcrete artifacts only begin to dominate archaeological sites found in the Cumberland Plain of western Sydney, eastern Australia, during the mid‐late Holocene. These assemblages routinely include large numbers of backed artifacts. A geoarchaeological survey of five potential silcrete source areas found that silcrete is irregularly distributed along ridgelines within gravel patches that rep…
Silcrete quarries and artefact distribution in the Central Queensland Highlands, Eastern Australia
A geoarchaeological study of silcrete in the Central Queensland Highlands highlights the importance of geological context in understanding the procurement, use and transport of artefacts. This study shows, by focusing on a newly discovered silcrete quarry, that silcrete formed beneath basalt by silicification of stream sediments and underlying sandstone. Silcrete outcrops are largely restricted to cliffs where the base of the basalt is exposed, n…
A progress report on research into stone artefacts of the southern Arcadia Valley, central Queensland
We report on progress made to date on a collaborative project which aims to shed light on various aspects of lithic technology in the southern Arcadia Valley, central Queensland. Analysis of >4000 stone artefacts indicates that silcrete was an important lithic resource locally. Initial results from portable x-ray fluorescence analysis of a sample of artefacts suggests that this technique may be capable of characterising geochemical signatures for…
Production of Stone Spades and Emergence of the First State in the Yiluo region, China
The Yiluo region witnessed a long history of Neolithic development (c. 6000-2000 BC), followed by some rapid social changes during the Bronze Age (c. 2000-200 BC). This is a heartland of Chinese civilisation, as the earliest state emerged at the Erlitou site (c. 1900-1500 BC) in the centre of the Yiluo basin. Our Yiluo archaeology project, initiated in 1997, is a long-term internationally collaborative and interdisciplinary programme, which holds…
Heat treatment of Polish flints
The Relationship Between Lithology, Flaking Properties and Artefact Manufacture for Australian Silcretes
Mechanical properties of Australian silcrete strongly influenced raw material selection and artefact manufacture. Microcrystalline silcrete, with high compressive and tensile strength, is suitable for blade tools requiring fine retouch. Fine‐grained silcrete (high compressive strength but lower tensile strength) was often used for blade‐based implements, but is more susceptible to edge fracturing. Medium‐grained silcrete has poor flaking properti…
A Review of Heat Treatment Research
The recognition of intentional heat treatment of stone artifacts in the archaeological record has been a major research topic since the initial study by Crabtree and Butler (1964). Ethnographic and archaeological records reveal two methods of intentional thermal alteration: controlled heat treatment most commonly used to enhance the flaking quality of stone, and thermal shock fracturing often applied to produce angular facets on rounded nodules o…
[Special Section on the Yiluo Project] Influences on Selection of Lithic Raw Material Sources at Huizui, a Neolithic/Early Bronze Age Site in Northern China
At Huizui, a major centre of ground stone tool manufacture, five main lithologies were used, each for a particular purpose: oolitic dolomite for spades; diabase for axes, adzes and chisels; fine micaceous sandstone for knives and sickles; other sandstone for grinding slabs; and fine limestone for lime. This reflects the functional properties of these lithologies. Diabase, oolitic dolomite and fine micaceous sandstone are tough and take sharp edge…
Gender differences in the mediated relationship between alcohol use and academic motivation among late adolescents
This study utilized structural equation modeling to examine the relationship between alcohol use and academic motivation controlling for potentially mediating variables of deviant behavior, depressive cognitions, family communication, and peer relations. The study also examined the manner in which these relationships were moderated by gender. Results indicated that alcohol use was directly related to deviance for both males and females, but was n…
Fear appeals in social marketing: Strategic and ethical reasons for concern
This article criticizes the predominant use of fear appeals in social marketing. Laboratory studies, which have been the basis for most of the research on fear appeals and which generally suggest that high fear works, have limitations that include forced exposure, short‐term measurement, and an overdependence on student samples. Although, unfortunately, field research evaluations of fear appeals are few, they usually reveal that fear has both wea…
Challenges in Evaluating Rural Health Programs
Complex community‐based prevention programs are being held to scientific euidence of their eflectiveness and rural public health departments that implement such programs often are not equipped fo evaluate them Rural public health departments are fettered by small budgets, small staffs, and less access to evaluation experts and similar resources Community‐based health promotion programs can include complex designs that may work diferently in rural…
Gender, perceived parental monitoring, and behavioral adjustment: Influences on adolescent alcohol use
This study examined relationships among gender, perceived parental monitoring, externalizing behaviors, and adolescent alcohol use in a 2-wave longitudinal study. Females reported more perceived parental monitoring and less alcohol use than males. Perceived maternal and paternal monitoring were related to less alcohol use over time. Increases in alcohol use were associated with increases in externalizing behaviors over time. Perceived maternal mo…
Gender, perceived parental monitoring and behavioral adjustment: Influences on adolescent alcohol use
Source to discard: Patterns of lithic raw material procurement and use in Sturt National Park, northwestern New South Wales
Sturt National Park, located in arid Northwestern New South Wales, has an abundance of stone sources occurring as outcrops and pavements of rounded cobbles (gibber); the flaking quality of the silcrete varies according to its geological characteristics. Detailed studies have focused on the procurement and use of these silcrete sources using a quarry and two nearby lithic scatters in the Stud Creek catchment. The results show that quarry location …
Flaking properties, petrology and use of Polish flint
The technical and aesthetic qualities of the many varieties of Polish flint utilized from the Middle Palaeolithic to the Bronze Age are analysed and assessed, and show how different flints were selected for different purposes
Effect of heat treatment on siliceous rocks used in prehistoric lithic technology
Source to discard: Patterns of lithic raw material procurement and use in Sturt National Park, northwestern New South Wales
Sturt National Park, located in arid Northwestern New South Wales, has an abundance of stone sources occurring as outcrops and pavements of rounded cobbles (gibber); the flaking quality of the silcrete varies according to its geological characteristics. Detailed studies have focused on the procurement and use of these silcrete sources using a quarry and two nearby lithic scatters in the Stud Creek catchment. The results show that quarry location …
Heat treatment of Polish flints
Mechanical Properties of Stone Artefact Materials and the Effect of Heat Treatment
Mechanical testing of lithologies used for stone tool manufacture has shown that fracture toughness is the most objective measure of the quality of raw materials shaped by either flaking or pecking/grinding. Materials amenable to pressure flaking and blade manufacture have low values of fracture toughness, whereas those shaped by pecking/grinding have high values. The fracture toughness test is also the most definitive for quantifying the improve…
The Creation of a Papua New Guinean Landscape: Archaeological and Geomorphological Evidence
This paper analyzes the creation of a landscape in Papua New Guinea over the past 3500 years under human influence. The Arawe Island group off the south coast of West New Britain Province in Papua New Guinea has been the subject of archaeological and geomorphological study from 1986 to 1992. The evidence of sediments and the artifacts they contain offer a record of the long term history of the region.The fullest evidence comes from the Lapita per…
Silcrete quarries and artefact distribution in the Central Queensland Highlands, Eastern Australia
A geoarchaeological study of silcrete in the Central Queensland Highlands highlights the importance of geological context in understanding the procurement, use and transport of artefacts. This study shows, by focusing on a newly discovered silcrete quarry, that silcrete formed beneath basalt by silicification of stream sediments and underlying sandstone. Silcrete outcrops are largely restricted to cliffs where the base of the basalt is exposed, n…
A progress report on research into stone artefacts of the southern Arcadia Valley, central Queensland
We report on progress made to date on a collaborative project which aims to shed light on various aspects of lithic technology in the southern Arcadia Valley, central Queensland. Analysis of >4000 stone artefacts indicates that silcrete was an important lithic resource locally. Initial results from portable x-ray fluorescence analysis of a sample of artefacts suggests that this technique may be capable of characterising geochemical signatures for…
Flaking properties, petrology and use of Polish flint
The technical and aesthetic qualities of the many varieties of Polish flint utilized from the Middle Palaeolithic to the Bronze Age are analysed and assessed, and show how different flints were selected for different purposes
The Relationship Between Lithology, Flaking Properties and Artefact Manufacture for Australian Silcretes
Mechanical properties of Australian silcrete strongly influenced raw material selection and artefact manufacture. Microcrystalline silcrete, with high compressive and tensile strength, is suitable for blade tools requiring fine retouch. Fine‐grained silcrete (high compressive strength but lower tensile strength) was often used for blade‐based implements, but is more susceptible to edge fracturing. Medium‐grained silcrete has poor flaking properti…
Wala-gaay Guwingal: A twentieth century Aboriginal culturally modified tree with an embedded stone tool
Aboriginal culturally modified trees are a distinctive feature of the Australian archaeological record, generating insights into Aboriginal interactions with wood and bark, which rarely survive in archaeological contexts. However, they are under-studied, in decline and typically presumed to pre-date the 20th century. Here we investigate the origin of a scar with a stone tool embedded in the scar overgrowth, located in the Central Tablelands, New …
Elemental differences: Geochemical identification of aboriginal silcrete sources in the Arcadia Valley, eastern Australia
Paleochannels and Patches: A Geoarchaeological Assessment of Silcrete Sources in the Cumberland Plain, Eastern Australia
Although Aboriginal occupation dates to the Pleistocene, silcrete artifacts only begin to dominate archaeological sites found in the Cumberland Plain of western Sydney, eastern Australia, during the mid‐late Holocene. These assemblages routinely include large numbers of backed artifacts. A geoarchaeological survey of five potential silcrete source areas found that silcrete is irregularly distributed along ridgelines within gravel patches that rep…
Sourcing hornfels artefacts in eastern Tasmania: Understanding Aboriginal mobility in a lithic-rich landscape
[Special Section on the Yiluo Project] Influences on Selection of Lithic Raw Material Sources at Huizui, a Neolithic/Early Bronze Age Site in Northern China
At Huizui, a major centre of ground stone tool manufacture, five main lithologies were used, each for a particular purpose: oolitic dolomite for spades; diabase for axes, adzes and chisels; fine micaceous sandstone for knives and sickles; other sandstone for grinding slabs; and fine limestone for lime. This reflects the functional properties of these lithologies. Diabase, oolitic dolomite and fine micaceous sandstone are tough and take sharp edge…
Concurrent and Longitudinal Assessment of Risk for Alcohol Use among Seventh Graders
This study examined the relationship between risk factors and alcohol use among seventh graders concurrently and over a 15-month period. Subjects were classified as abstainers, experimenters and users based on a quantity-frequency index of usage. A discriminant analysis predicting alcohol usage using concurrent risk factors generated two functions. The first was composed of measures associated with deviance and peer-related measures. Family-relat…
The archaeology of eastern Lutruwita (Tasmania)
Fifty years have passed since the first systematic archaeological surveys and excavations were conducted in Lutruwita (Tasmania). Despite numerous Late Pleistocene archaeological discoveries in the southwest region, no indisputable pre‐Holocene sites have been found in eastern Tasmania. This profound difference raises questions about how Aboriginal people utilised the Lutruwita landscape; first as a projecting peninsula into the Southern Ocean an…
Effect of surface weathering on portable X‐Ray fluorescence analysis of artefacts: Evidence from Tasmanian hornfels
Hornfels was commonly utilised by Aboriginal people in southeastern Tasmania for stone artefact manufacture. Sourcing of hornfels artefacts in this region using pXRF analysis is potentially compromised by the weathering patina generally present on this lithology. To understand the impact of weathering on hornfels composition, the mineralogy and chemical composition of weathered and unweathered hornfels were analysed, and weathering was simulated …
Unaccompanied status as a risk factor in Vietnamese Amerasians
Development of an Abbreviated Fonr of the Alcohol Expectancy Questionnaire for Adolescents
This article reports the development of an abbreviated version of the Alcohol Expectancy Questionnaire for Adolescents (AEQ-A) that has acceptable psychometric properties. A sample of seventh graders was split randomly into two halves, and the abbreviated version was developed using the two halves of the sample, including cross validation with half of the sample. All 90 items of the seven original AEQ-A subscales were administered to both halves …
A conceptual model of how people adopt recreation activities
This paper reports an investigation of the process which mediates between preoccupations and interests and the point at which a specific recreational activity is adopted. In conceptualizing this process, a phenomenological approach is utilized with three series of interviews. The practical application of the model was also explored, using a written questionnaire. Four necessary and sufficient conditions: opportunity, knowledge, favourable social …
A conceptual model of how people adopt recreation activities
This paper reports an investigation of the process which mediates between preoccupations and interests and the point at which a specific recreational activity is adopted. In conceptualizing this process, a phenomenological approach is utilized with three series of interviews. The practical application of the model was also explored, using a written questionnaire. Four necessary and sufficient conditions: opportunity, knowledge, favourable social …
Concurrent and Longitudinal Assessment of Risk for Alcohol Use among Seventh Graders
This study examined the relationship between risk factors and alcohol use among seventh graders concurrently and over a 15-month period. Subjects were classified as abstainers, experimenters and users based on a quantity-frequency index of usage. A discriminant analysis predicting alcohol usage using concurrent risk factors generated two functions. The first was composed of measures associated with deviance and peer-related measures. Family-relat…
Effect of heat treatment on siliceous rocks used in prehistoric lithic technology
Development of an Abbreviated Fonr of the Alcohol Expectancy Questionnaire for Adolescents
This article reports the development of an abbreviated version of the Alcohol Expectancy Questionnaire for Adolescents (AEQ-A) that has acceptable psychometric properties. A sample of seventh graders was split randomly into two halves, and the abbreviated version was developed using the two halves of the sample, including cross validation with half of the sample. All 90 items of the seven original AEQ-A subscales were administered to both halves …
The Creation of a Papua New Guinean Landscape: Archaeological and Geomorphological Evidence
This paper analyzes the creation of a landscape in Papua New Guinea over the past 3500 years under human influence. The Arawe Island group off the south coast of West New Britain Province in Papua New Guinea has been the subject of archaeological and geomorphological study from 1986 to 1992. The evidence of sediments and the artifacts they contain offer a record of the long term history of the region.The fullest evidence comes from the Lapita per…
Mechanical Properties of Stone Artefact Materials and the Effect of Heat Treatment
Mechanical testing of lithologies used for stone tool manufacture has shown that fracture toughness is the most objective measure of the quality of raw materials shaped by either flaking or pecking/grinding. Materials amenable to pressure flaking and blade manufacture have low values of fracture toughness, whereas those shaped by pecking/grinding have high values. The fracture toughness test is also the most definitive for quantifying the improve…
Unaccompanied status as a risk factor in Vietnamese Amerasians
Glacial Crooked Lake, Vestfold Hills, East Antarctica
Glacial Crooked Lake was an ice-dammed impoundment in Vestfold Hills, East Antarctica, that had a volume of (250 ± 45) × 10 m. The impoundment is inferred to have existed during deglaciation following the Late Holocene Chelnok Advance of Sørsdal Glacier. The dam released water incrementally, allowing the formation of four major series of shorelines with a maximum height of 24 m above the current lake level of 22 m asl. Water from Glacial Crooked …
The prevalence of psychiatric disorders among Vietnamese Amerasians: A pilot study
A pilot study of the prevalence rate of DSM-III psychiatric disorders among Vietnamese Amerasians prior to migration from Vietnam found current prevalence of such disorders to be lower than previously reported among Vietnamese refugees in the United States and Australia. Methodological and cultural factors contributing to the lower than expected prevalence rate are discussed, and implications for clinical assessments and future research are noted
Intentions to use alcohol among fifth and sixth graders: The roles of social and stress/coping motives
This study of children in grades five and six assessed the relationship between social and stress/coping motives and students' intentions to drink in junior high school. Whereas the two motives were not seen as separate by fifth graders, they were differentiated by sixth graders, for whom they were associated--social motives more strongly than stress/coping motives--with intentions to use alcohol. Implications for the design and timing of prevent…
Flaking properties, petrology and use of Polish flint
The technical and aesthetic qualities of the many varieties of Polish flint utilized from the Middle Palaeolithic to the Bronze Age are analysed and assessed, and show how different flints were selected for different purposes
Source to discard: Patterns of lithic raw material procurement and use in Sturt National Park, northwestern New South Wales
Sturt National Park, located in arid Northwestern New South Wales, has an abundance of stone sources occurring as outcrops and pavements of rounded cobbles (gibber); the flaking quality of the silcrete varies according to its geological characteristics. Detailed studies have focused on the procurement and use of these silcrete sources using a quarry and two nearby lithic scatters in the Stud Creek catchment. The results show that quarry location …
Challenges in Evaluating Rural Health Programs
Complex community‐based prevention programs are being held to scientific euidence of their eflectiveness and rural public health departments that implement such programs often are not equipped fo evaluate them Rural public health departments are fettered by small budgets, small staffs, and less access to evaluation experts and similar resources Community‐based health promotion programs can include complex designs that may work diferently in rural…
Gender, perceived parental monitoring, and behavioral adjustment: Influences on adolescent alcohol use
This study examined relationships among gender, perceived parental monitoring, externalizing behaviors, and adolescent alcohol use in a 2-wave longitudinal study. Females reported more perceived parental monitoring and less alcohol use than males. Perceived maternal and paternal monitoring were related to less alcohol use over time. Increases in alcohol use were associated with increases in externalizing behaviors over time. Perceived maternal mo…
Gender, perceived parental monitoring and behavioral adjustment: Influences on adolescent alcohol use
Fear appeals in social marketing: Strategic and ethical reasons for concern
This article criticizes the predominant use of fear appeals in social marketing. Laboratory studies, which have been the basis for most of the research on fear appeals and which generally suggest that high fear works, have limitations that include forced exposure, short‐term measurement, and an overdependence on student samples. Although, unfortunately, field research evaluations of fear appeals are few, they usually reveal that fear has both wea…
A Review of Heat Treatment Research
The recognition of intentional heat treatment of stone artifacts in the archaeological record has been a major research topic since the initial study by Crabtree and Butler (1964). Ethnographic and archaeological records reveal two methods of intentional thermal alteration: controlled heat treatment most commonly used to enhance the flaking quality of stone, and thermal shock fracturing often applied to produce angular facets on rounded nodules o…
[Special Section on the Yiluo Project] Influences on Selection of Lithic Raw Material Sources at Huizui, a Neolithic/Early Bronze Age Site in Northern China
At Huizui, a major centre of ground stone tool manufacture, five main lithologies were used, each for a particular purpose: oolitic dolomite for spades; diabase for axes, adzes and chisels; fine micaceous sandstone for knives and sickles; other sandstone for grinding slabs; and fine limestone for lime. This reflects the functional properties of these lithologies. Diabase, oolitic dolomite and fine micaceous sandstone are tough and take sharp edge…
Gender differences in the mediated relationship between alcohol use and academic motivation among late adolescents
This study utilized structural equation modeling to examine the relationship between alcohol use and academic motivation controlling for potentially mediating variables of deviant behavior, depressive cognitions, family communication, and peer relations. The study also examined the manner in which these relationships were moderated by gender. Results indicated that alcohol use was directly related to deviance for both males and females, but was n…
The Relationship Between Lithology, Flaking Properties and Artefact Manufacture for Australian Silcretes
Mechanical properties of Australian silcrete strongly influenced raw material selection and artefact manufacture. Microcrystalline silcrete, with high compressive and tensile strength, is suitable for blade tools requiring fine retouch. Fine‐grained silcrete (high compressive strength but lower tensile strength) was often used for blade‐based implements, but is more susceptible to edge fracturing. Medium‐grained silcrete has poor flaking properti…
Production of Stone Spades and Emergence of the First State in the Yiluo region, China
The Yiluo region witnessed a long history of Neolithic development (c. 6000-2000 BC), followed by some rapid social changes during the Bronze Age (c. 2000-200 BC). This is a heartland of Chinese civilisation, as the earliest state emerged at the Erlitou site (c. 1900-1500 BC) in the centre of the Yiluo basin. Our Yiluo archaeology project, initiated in 1997, is a long-term internationally collaborative and interdisciplinary programme, which holds…
Heat treatment of Polish flints
A progress report on research into stone artefacts of the southern Arcadia Valley, central Queensland
We report on progress made to date on a collaborative project which aims to shed light on various aspects of lithic technology in the southern Arcadia Valley, central Queensland. Analysis of >4000 stone artefacts indicates that silcrete was an important lithic resource locally. Initial results from portable x-ray fluorescence analysis of a sample of artefacts suggests that this technique may be capable of characterising geochemical signatures for…
Silcrete quarries and artefact distribution in the Central Queensland Highlands, Eastern Australia
A geoarchaeological study of silcrete in the Central Queensland Highlands highlights the importance of geological context in understanding the procurement, use and transport of artefacts. This study shows, by focusing on a newly discovered silcrete quarry, that silcrete formed beneath basalt by silicification of stream sediments and underlying sandstone. Silcrete outcrops are largely restricted to cliffs where the base of the basalt is exposed, n…
Paleochannels and Patches: A Geoarchaeological Assessment of Silcrete Sources in the Cumberland Plain, Eastern Australia
Although Aboriginal occupation dates to the Pleistocene, silcrete artifacts only begin to dominate archaeological sites found in the Cumberland Plain of western Sydney, eastern Australia, during the mid‐late Holocene. These assemblages routinely include large numbers of backed artifacts. A geoarchaeological survey of five potential silcrete source areas found that silcrete is irregularly distributed along ridgelines within gravel patches that rep…
Archaeology (19 works) · Geography (18 works) · Geology (16 works) · Pleistocene-Era Hominins and Archaeology (12 works) · Psychology (11 works) · Archaeology and ancient environmental studies (9 works) · History (8 works) · Clinical Psychology (7 works) · History (6 works) · Developmental psychology (5 works)