Andrew J Dugmore
Biographic Data
| ID | 126513 |
|---|---|
| NAME | Andrew J Dugmore |
| GIVEN NAMES | Andrew J |
| FAMILY NAME | Dugmore |
| SIGNATURE | DUGMORE A J |
| AFFILIATIONS | University of Edinburgh |
| VERIFIED | No |
| TOTAL WORKS | 36 |
| TOTAL CITATIONS | 354 |
| AUTHOR COUNT | 36 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1992 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 12 |
Lessons from Medieval Greenland for Interdisciplinary and Science-Forward History
Disparate impacts of the Eldgjá and Laki flood-lava eruptions
The Eldgjá eruption of ~ 939 AD is recognised as the largest in Iceland since Settlement, and ranks among the largest late-Holocene volcanic episodes on Earth. It disgorged > 21.0 km 3 (Dense Rock Equivalent) of magma as lava flows (~ 19.7 km 3 ) and tephra deposits (> 1.3 km 3 DRE), comprising alternating phreatomagmatic (wet) and magmatic (dry) explosive phases. Tephra deposits up to four metres thick buried proximal areas, and extreme quantiti…
Why are sustainable practices often elusive? The role of information flow in the management of networked human-environment interactions
Analyzing the spatial and temporal properties of information flow with a multi-century perspective could illuminate the sustainability of human resource-use strategies. This paper uses historical and archaeological datasets to assess how spatial, temporal, cognitive, and cultural limitations impact the generation and flow of information about ecosystems within past societies, and thus lead to tradeoffs in sustainable practices. While it is well u…
Enhancing Radiocarbon Chronologies of Colonization
Accurately dating when people first colonized new areas is vital for understanding the pace of past cultural and environmental changes, including questions of mobility, human impacts and human responses to climate change. Establishing effective chronologies of these events requires the synthesis of multiple radiocarbon ( 14 C) dates. Various “chronometric hygiene” protocols have been used to refine 14 C dating of island colonization, but they can…
Rediscovering lessons of adaptation from the past
Climate challenges, vulnerabilities, and food security
Significance Climate-induced disasters are impacting human well-being in ever-increasing ways. Disaster research and management recognize and emphasize the need to reduce vulnerabilities, although extant policy is not in line with this realization. This paper assesses the extent to which vulnerability to food shortage, as a result of social, demographic, and resource conditions at times of climatic challenge, correlates with subsequent declines i…
The onset of the palaeoanthropocene in Iceland
Pre-industrial human impacts on the past environment are apparent in different proxy records at different times in different places. Recognizing environmentally transformative human impacts in palaeoenvironmental archives, as opposed to natural variability, is a key challenge in understanding the nature of the transition to the Earth’s current ‘Anthropocene’ condition. Here, we consider the palaeoenvironmental record for Iceland over the past 2.5…
Stable Isotopic (δ13C and δ15N) Characterization of Key Faunal Resources from Norse Period Settlements in North Iceland
During the Viking Age, Norse peoples established settlements across the North Atlantic, colonizing the pristine and near-pristine landscapes of the Faroe Islands, Iceland, Greenland, and the short-lived Vinland settlement in Newfoundland. Current North Atlantic archaeological research themes include efforts to understand human adaptation and impact in these environments. For example, early Icelandic settlements persisted despite substantial envir…
Re-deposited cryptotephra layers in Holocene peats linked to anthropogenic activity
Tephra layers can form useful age-equivalent stratigraphic markers for correlating palaeoenvironmental sequences and they provide information about the spatio-temporal nature of past volcanic ash fall events. The use of microscopic ‘cryptotephra’ layers has both increased the stratigraphic resolution of tephra sequences in proximal areas and extended the distal application of tephrochronology to regions of the world situated far from volcanoes. E…
A charcoal-rich horizon at Ø69, Greenland
It is often assumed that the colonisation of Greenland by Norse settlers in c. A.D. 985 had a sudden and dramatic effect on the environment, involving substantial vegetation clearance and environmental degradation. Consequently, it has been argued that charcoal-rich horizons, visible in many sections in Greenland, represent the initial burning of the vegetation by Norse farmers to create land suitable for agriculture. In this study a charcoal-ric…
Cultural adaptation, compounding vulnerabilities and conjunctures in Norse Greenland
Norse Greenland has been seen as a classic case of maladaptation by an inflexible temperate zone society extending into the arctic and collapse driven by climate change. This paper, however, recognizes the successful arctic adaptation achieved in Norse Greenland and argues that, although climate change had impacts, the end of Norse settlement can only be truly understood as a complex socioenvironmental system that includes local and interregional…
Reconstructing late-Holocene environmental change in Iceland using high-resolution tephrochronology
High resolution records of sediment accumulation are necessary to evaluate subtle temporal and spatial variations in sediment flux, especially in the context of decadal-scale human–environment interactions. Digital photography using consumer-grade cameras may be used to gather thousands of stratigraphic measurements to ± 1 mm (potentially equivalent to ± 2 years of accumulation) and provide data amenable to statistical manipulation. This new appr…
Radiocarbon reservoir effects in human bone collagen from northern Iceland
Conceptual Models of 1200 Years of Icelandic Soil Erosion Reconstructed Using Tephrochronology
With reference to 18 tephra isochrones, we present six reconstructions of landscapes in South Iceland at precise times through the last 1200 years and develop three related models of soil erosion. Before the late ninth century A.D., the landscapes of Iceland were without people and resilient to natural processes. The initial impact of human settlement in the ninth century AD was most profound in ecologically marginal areas, where major anthropoge…
Two millennia of glacier advances from southern Iceland dated by tephrochronology
Two glaciers at Eyjafjallajökull, south Iceland, provide a record of multiple episodes of glacier advance since the Sub-Atlantic period, ca. 2000 yr ago. A combination of tephrochronology and lichenometry was applied to date ice-marginal moraines, tills and meltwater deposits. Two glacier advances occurred before the 3rd century AD, others in the 9th and 12th centuries bracketing the Medieval Warm Period, and five groups of advances occurred betw…
Good for glaciers, bad for people? Archaeologically relevant climate models developed from reconstructions of glacier mass balance
Reservoirs and Radiocarbon
This paper examines 2 potential sources of the radiocarbon offset between human and terrestrial mammal (horse) bones recovered from Norse (∼AD 870–1000) pagan graves in Mývatnssveit, north Iceland. These are the marine and freshwater 14 C reservoir effects that may be incorporated into human bones from dietary sources. The size of the marine 14 C reservoir effect (MRE) during the Norse period was investigated by measurement of multiple paired sam…
Abandoned Farms, Volcanic Impacts, and Woodland Management
Geomorphological maps and nine soil profiles containing 92 tephra layers have been examined to explore the nature of medieval environmental change in Þjórsárdalur, Iceland, where farms are thought to have been abandoned after the massive tephra fall from the eruption of Hekla in 1104 A.D. This paper presents evidence for continued human activity in the area in the two centuries following the 1104 A.D. eruption, indicating that continued utilizati…
Norse Greenland Settlement
Changing economies and patterns of trade, rather than climatic deterioration, could have critically marginalized the Norse Greenland settlements and effectively sealed their fate. Counter-intuitively, the end of Norse Greenland might not be symptomatic of a failure to adapt to environmental change, but a consequence of successful wider economic developments of Norse communities across North Atlantic. Data from Greenland, the Faroe Islands, and me…
The Role of Climate in Settlement and Landscape Change in the North Atlantic Islands
In order to assess possible contributions of climate change to the human ecology of the Faroe Islands, proxy climate data from the Greenland Icesheet Project 2 (GISP2) are evaluated in relation to settlement and landscape \nchanges in the Faroes and other North Atlantic islands. Our aim is to identify \ntimes of unpredictable change in the context of cultural and environmental \n'memories'. A pan-Atlantic perspective is used to assess the utility…
Radiocarbon dating of mid-Holocene megaflood deposits in the Jokulsa a Fjollum, north Iceland
Two megafloods in the canyon of the Jokulsi i Fjóllum, the major northern routeway for glaciovolcanic floods from Vatnajókull, have been closely dated by 14C AMS dates from Betula macrofossils within peat immediately below beds of flood-deposited sand. Ages of c. 4415 and c. 4065 yr BP (5020 and 4610 cal. yr BP) are consistent with the presence of the Hekla 4 tephra (c. 3830 yr BP) resting on the upper surface of the younger flood sand. These sed…
Influence of Mollusk Species on Marine ΔR Determinations
Radiocarbon ages were measured on replicate samples of burnt grain and 5 mollusk species collected from a single sealed layer at an archaeological site (Hornish Point) on the west coast of South Uist, Scotland. The aim was to examine the impact of using different mollusk species on ΔR determinations that are calculated using the paired terrestrial/marine sample approach. The mollusk species examined inhabit a range of environments and utilize a v…
The Norse landnám on the North Atlantic islands
The Norse colonisation or landnám of the North Atlantic islands of the Faroes, Iceland, and Greenland from the ninth century AD onwards provides opportunities to examine human environmental impacts on ‘pristine’ landscapes on an environmental gradient from warmer, more maritime conditions in the east to colder, more continental conditions in the west. This paper considers key environmental contrasts across the Atlantic and initial settlement impa…
Perception, history, and science
In Iceland, studies that integrate local perceptions about the landscape with scientific evidence of change have been few. This article presents a case study from southeast Iceland that has two main objectives. Firstly, ethnographic data is used to explore the human dimension of the Little Ice Age through perceptions of landscape and climatic change and to describe the impacts that these changes had on life and livelihood. Secondly, the paper cri…
Historical Ecology on Sandoy, Faroe Islands
We present palaeoenvironmental, geomorphological, archaeological, and place-name data which allow a holistic assessment of the history of landscape change on Sandoy, Faroe Islands, especially in terms of the changes that occurred in response to the colonization of the island by humans. In contrast to other situations in the North Atlantic region, there is considerable continuity in the patterns and processes of landscape evolution across the init…
Seven tephra isochrones in Scotland
This paper reports the presence and geochemical characteristics of seven separate tephras in Scotland that fell in AD 1510, and about 450 BP, 2100 BP, 3600 BP, 3830 BP, 5600 BP and around 6000 BP. The results come from 14 peat bogs spread throughout the Highlands and Islands where 26 tephra deposits have been characterized using over 400 grain-discrete electron-probe micro-analysis. Firstly, tephras are identified and defined by major element cha…
The Role of Climate in Settlement and Landscape Change in the North Atlantic Islands
In order to assess possible contributions of climate change to the human ecology of the Faroe Islands, proxy climate data from the Greenland Icesheet Project 2 (GISP2) are evaluated in relation to settlement and landscape \nchanges in the Faroes and other North Atlantic islands. Our aim is to identify \ntimes of unpredictable change in the context of cultural and environmental \n'memories'. A pan-Atlantic perspective is used to assess the utility…
Influence of Mollusk Species on Marine ΔR Determinations
Radiocarbon ages were measured on replicate samples of burnt grain and 5 mollusk species collected from a single sealed layer at an archaeological site (Hornish Point) on the west coast of South Uist, Scotland. The aim was to examine the impact of using different mollusk species on ΔR determinations that are calculated using the paired terrestrial/marine sample approach. The mollusk species examined inhabit a range of environments and utilize a v…
Historical Ecology on Sandoy, Faroe Islands
We present palaeoenvironmental, geomorphological, archaeological, and place-name data which allow a holistic assessment of the history of landscape change on Sandoy, Faroe Islands, especially in terms of the changes that occurred in response to the colonization of the island by humans. In contrast to other situations in the North Atlantic region, there is considerable continuity in the patterns and processes of landscape evolution across the init…
Radiocarbon reservoir effects in human bone collagen from northern Iceland
Reservoirs and Radiocarbon
This paper examines 2 potential sources of the radiocarbon offset between human and terrestrial mammal (horse) bones recovered from Norse (∼AD 870–1000) pagan graves in Mývatnssveit, north Iceland. These are the marine and freshwater 14 C reservoir effects that may be incorporated into human bones from dietary sources. The size of the marine 14 C reservoir effect (MRE) during the Norse period was investigated by measurement of multiple paired sam…
A Hypothesis-Based Approach to Landscape Change in Suðuroy, Faroe Islands
Hovsdalur, an area delimited by the great cirques of upland central Su uroy, draining into the valley of the Hovs ́a and terminating in the east at the coastal amphitheatre of Hovsfjørdur, is a microcosm of the Faroes. The area contains the physical and economic features which characterize the greater part of the island group-mountain, valley, and coast, and marine, cultivation, and grazing environments. Data comprising mainly geomorphological,pa…
Rediscovering lessons of adaptation from the past
The Norse landnám on the North Atlantic islands
The Norse colonisation or landnám of the North Atlantic islands of the Faroes, Iceland, and Greenland from the ninth century AD onwards provides opportunities to examine human environmental impacts on ‘pristine’ landscapes on an environmental gradient from warmer, more maritime conditions in the east to colder, more continental conditions in the west. This paper considers key environmental contrasts across the Atlantic and initial settlement impa…
Holocene Variations in the Scottish Marine Radiocarbon Reservoir Effect
We assessed the evidence for variations in the marine radiocarbon reservoir effect (MRE) at coastal, archaeological Iron Age sites in north and west Scotland by comparing AMS measurements of paired marine and terrestrial materials (4 pairs per context). ΔR values were calculated from measurements on material from 3 sites using 6 sets of samples, all of which were deposited around 2000 BP. The weighted mean of the ΔR determinations was −79 ± 17 14…
Norse Greenland Settlement
Changing economies and patterns of trade, rather than climatic deterioration, could have critically marginalized the Norse Greenland settlements and effectively sealed their fate. Counter-intuitively, the end of Norse Greenland might not be symptomatic of a failure to adapt to environmental change, but a consequence of successful wider economic developments of Norse communities across North Atlantic. Data from Greenland, the Faroe Islands, and me…
Icelandic volcanic ash and the mid- Holocene Scots pine (Pinus sylvestris) pollen decline in northern Scotland
A volcanic ash-layer in peat from northern Scotland has been identified and coincides exactly with an abrupt decline in Pinus sylvestris L. (Scots pine) pollen frequencies. This provides an isochrone (time-equivalent marker horizon) with which to investigate the timing of the Holocene 'pine-decline'. Furthermore, two possible causes of the southward shift of the range of Pinus in Scotland c. 4000 BP are suggested; a direct effect of acid pollutio…
The onset of the palaeoanthropocene in Iceland
Pre-industrial human impacts on the past environment are apparent in different proxy records at different times in different places. Recognizing environmentally transformative human impacts in palaeoenvironmental archives, as opposed to natural variability, is a key challenge in understanding the nature of the transition to the Earth’s current ‘Anthropocene’ condition. Here, we consider the palaeoenvironmental record for Iceland over the past 2.5…
Abandoned Farms, Volcanic Impacts, and Woodland Management
Geomorphological maps and nine soil profiles containing 92 tephra layers have been examined to explore the nature of medieval environmental change in Þjórsárdalur, Iceland, where farms are thought to have been abandoned after the massive tephra fall from the eruption of Hekla in 1104 A.D. This paper presents evidence for continued human activity in the area in the two centuries following the 1104 A.D. eruption, indicating that continued utilizati…
Enhancing Radiocarbon Chronologies of Colonization
Accurately dating when people first colonized new areas is vital for understanding the pace of past cultural and environmental changes, including questions of mobility, human impacts and human responses to climate change. Establishing effective chronologies of these events requires the synthesis of multiple radiocarbon ( 14 C) dates. Various “chronometric hygiene” protocols have been used to refine 14 C dating of island colonization, but they can…
Conceptual Models of 1200 Years of Icelandic Soil Erosion Reconstructed Using Tephrochronology
With reference to 18 tephra isochrones, we present six reconstructions of landscapes in South Iceland at precise times through the last 1200 years and develop three related models of soil erosion. Before the late ninth century A.D., the landscapes of Iceland were without people and resilient to natural processes. The initial impact of human settlement in the ninth century AD was most profound in ecologically marginal areas, where major anthropoge…
Bronze Age myths? Volcanic activity and human response in the Mediterranean and North Atlantic regions
A first rule of statistics is that the existence of a correlation does not itself prove a causal connection. This is the heart of the recurrent question in later European prehistory — whether in the Mediterranean or in the Atlantic northwest — about volcanic eruptions, their impact on climate, and then of the climatic impact on human populations. The burial under tephra of the Late Bronze Age settlement of Santorini is proof of a particular catas…
Why are sustainable practices often elusive? The role of information flow in the management of networked human-environment interactions
Analyzing the spatial and temporal properties of information flow with a multi-century perspective could illuminate the sustainability of human resource-use strategies. This paper uses historical and archaeological datasets to assess how spatial, temporal, cognitive, and cultural limitations impact the generation and flow of information about ecosystems within past societies, and thus lead to tradeoffs in sustainable practices. While it is well u…
Stable Isotopic (δ13C and δ15N) Characterization of Key Faunal Resources from Norse Period Settlements in North Iceland
During the Viking Age, Norse peoples established settlements across the North Atlantic, colonizing the pristine and near-pristine landscapes of the Faroe Islands, Iceland, Greenland, and the short-lived Vinland settlement in Newfoundland. Current North Atlantic archaeological research themes include efforts to understand human adaptation and impact in these environments. For example, early Icelandic settlements persisted despite substantial envir…
Re-deposited cryptotephra layers in Holocene peats linked to anthropogenic activity
Tephra layers can form useful age-equivalent stratigraphic markers for correlating palaeoenvironmental sequences and they provide information about the spatio-temporal nature of past volcanic ash fall events. The use of microscopic ‘cryptotephra’ layers has both increased the stratigraphic resolution of tephra sequences in proximal areas and extended the distal application of tephrochronology to regions of the world situated far from volcanoes. E…
Holocene comment and reply
In response to a paper by Blackford et al. (1992) which showed a coincidence between the deposition of Hekla-4 tephra and a decline of Pinus pollen in two northern Scottish sites, Hall et al. (1994) investigated the tephra/pine pollen relationship at two sites in Northern Ireland. We argue that their sites are inappropriate for such comparison because pine was effectively absent from Co. Antrim long before the deposition of Hekla-4. The opportuni…
A charcoal-rich horizon at Ø69, Greenland
It is often assumed that the colonisation of Greenland by Norse settlers in c. A.D. 985 had a sudden and dramatic effect on the environment, involving substantial vegetation clearance and environmental degradation. Consequently, it has been argued that charcoal-rich horizons, visible in many sections in Greenland, represent the initial burning of the vegetation by Norse farmers to create land suitable for agriculture. In this study a charcoal-ric…
Tephrochronology, Environmental Change and the Norse Settlement of Iceland
The first human impacts on the Icelandic environment came with the Norse colonisation or Landnám of the ninth century AD. The colonisation represents a fundamental environmental change that is both rapid and profound. In this paper we assess geomorphological dimensions of the initial settlement period using a tephrochronology that includes the Landnám Tephra, erupted ca. 870 AD, two tenth century AD tephras KR 920 and E 935, and 11 other well dat…
Reconstructing late-Holocene environmental change in Iceland using high-resolution tephrochronology
High resolution records of sediment accumulation are necessary to evaluate subtle temporal and spatial variations in sediment flux, especially in the context of decadal-scale human–environment interactions. Digital photography using consumer-grade cameras may be used to gather thousands of stratigraphic measurements to ± 1 mm (potentially equivalent to ± 2 years of accumulation) and provide data amenable to statistical manipulation. This new appr…
Good for glaciers, bad for people? Archaeologically relevant climate models developed from reconstructions of glacier mass balance
Icelandic volcanic ash and the mid- Holocene Scots pine (Pinus sylvestris) pollen decline in northern Scotland
A volcanic ash-layer in peat from northern Scotland has been identified and coincides exactly with an abrupt decline in Pinus sylvestris L. (Scots pine) pollen frequencies. This provides an isochrone (time-equivalent marker horizon) with which to investigate the timing of the Holocene 'pine-decline'. Furthermore, two possible causes of the southward shift of the range of Pinus in Scotland c. 4000 BP are suggested; a direct effect of acid pollutio…
Seven tephra isochrones in Scotland
This paper reports the presence and geochemical characteristics of seven separate tephras in Scotland that fell in AD 1510, and about 450 BP, 2100 BP, 3600 BP, 3830 BP, 5600 BP and around 6000 BP. The results come from 14 peat bogs spread throughout the Highlands and Islands where 26 tephra deposits have been characterized using over 400 grain-discrete electron-probe micro-analysis. Firstly, tephras are identified and defined by major element cha…
Holocene comment and reply
In response to a paper by Blackford et al. (1992) which showed a coincidence between the deposition of Hekla-4 tephra and a decline of Pinus pollen in two northern Scottish sites, Hall et al. (1994) investigated the tephra/pine pollen relationship at two sites in Northern Ireland. We argue that their sites are inappropriate for such comparison because pine was effectively absent from Co. Antrim long before the deposition of Hekla-4. The opportuni…
Bronze Age myths? Volcanic activity and human response in the Mediterranean and North Atlantic regions
A first rule of statistics is that the existence of a correlation does not itself prove a causal connection. This is the heart of the recurrent question in later European prehistory — whether in the Mediterranean or in the Atlantic northwest — about volcanic eruptions, their impact on climate, and then of the climatic impact on human populations. The burial under tephra of the Late Bronze Age settlement of Santorini is proof of a particular catas…
A Scottish speleothem record of the H-3 eruption or human impact? A comment on Baker, Smart, Barnes, Edwards and Farrant
Studies of a stalagmite sample from Sutherland, Scotland, have identified a period of enhanced growth that lasted for four years and has been dated to 1135 ± 130 BC (Baker et al., 1995). This episode is unique within this sample and has not been observed elsewhere. The authors correlate it with the Icelandic volcanic eruption at 1021 + 130/-100 Bc that produced the Hekla-3 (H-3) tephra. There is, however, no direct evidence for a causal relations…
Tephrochronology, Environmental Change and the Norse Settlement of Iceland
The first human impacts on the Icelandic environment came with the Norse colonisation or Landnám of the ninth century AD. The colonisation represents a fundamental environmental change that is both rapid and profound. In this paper we assess geomorphological dimensions of the initial settlement period using a tephrochronology that includes the Landnám Tephra, erupted ca. 870 AD, two tenth century AD tephras KR 920 and E 935, and 11 other well dat…
Adapting to Climate Change
Adapting to climate change is a critical problem facing humanity. This involves reconsidering our lifestyles, and is linked to our actions as individuals, societies and governments. This book presents top science and social science research on whether the world can adapt to climate change. Written by experts, both academics and practitioners, it examines the risks to ecosystems, demonstrating how values, culture and the constraining forces of gov…
Holocene climatic changes in Iceland
Holocene Variations in the Scottish Marine Radiocarbon Reservoir Effect
We assessed the evidence for variations in the marine radiocarbon reservoir effect (MRE) at coastal, archaeological Iron Age sites in north and west Scotland by comparing AMS measurements of paired marine and terrestrial materials (4 pairs per context). ΔR values were calculated from measurements on material from 3 sites using 6 sets of samples, all of which were deposited around 2000 BP. The weighted mean of the ΔR determinations was −79 ± 17 14…
Vegetational response to tephra deposition and land-use change in Iceland
Evidence is provided from the joint application of tephrochronology and palynology in two Icelandic locations — the island of Papey off the east coast and Seljaland in the south. The Papey study relates to vegetation change around the time of volcanic ash deposition from the eruption of Katla in 1755. This produced various hypotheses concerning volcanic impacts and land-use activities, including changes in nutrient inputs, grazing activity, and c…
Influence of Mollusk Species on Marine ΔR Determinations
Radiocarbon ages were measured on replicate samples of burnt grain and 5 mollusk species collected from a single sealed layer at an archaeological site (Hornish Point) on the west coast of South Uist, Scotland. The aim was to examine the impact of using different mollusk species on ΔR determinations that are calculated using the paired terrestrial/marine sample approach. The mollusk species examined inhabit a range of environments and utilize a v…
The Norse landnám on the North Atlantic islands
The Norse colonisation or landnám of the North Atlantic islands of the Faroes, Iceland, and Greenland from the ninth century AD onwards provides opportunities to examine human environmental impacts on ‘pristine’ landscapes on an environmental gradient from warmer, more maritime conditions in the east to colder, more continental conditions in the west. This paper considers key environmental contrasts across the Atlantic and initial settlement impa…
Perception, history, and science
In Iceland, studies that integrate local perceptions about the landscape with scientific evidence of change have been few. This article presents a case study from southeast Iceland that has two main objectives. Firstly, ethnographic data is used to explore the human dimension of the Little Ice Age through perceptions of landscape and climatic change and to describe the impacts that these changes had on life and livelihood. Secondly, the paper cri…
Historical Ecology on Sandoy, Faroe Islands
We present palaeoenvironmental, geomorphological, archaeological, and place-name data which allow a holistic assessment of the history of landscape change on Sandoy, Faroe Islands, especially in terms of the changes that occurred in response to the colonization of the island by humans. In contrast to other situations in the North Atlantic region, there is considerable continuity in the patterns and processes of landscape evolution across the init…
A Hypothesis-Based Approach to Landscape Change in Suðuroy, Faroe Islands
Hovsdalur, an area delimited by the great cirques of upland central Su uroy, draining into the valley of the Hovs ́a and terminating in the east at the coastal amphitheatre of Hovsfjørdur, is a microcosm of the Faroes. The area contains the physical and economic features which characterize the greater part of the island group-mountain, valley, and coast, and marine, cultivation, and grazing environments. Data comprising mainly geomorphological,pa…
Radiocarbon dating of mid-Holocene megaflood deposits in the Jokulsa a Fjollum, north Iceland
Two megafloods in the canyon of the Jokulsi i Fjóllum, the major northern routeway for glaciovolcanic floods from Vatnajókull, have been closely dated by 14C AMS dates from Betula macrofossils within peat immediately below beds of flood-deposited sand. Ages of c. 4415 and c. 4065 yr BP (5020 and 4610 cal. yr BP) are consistent with the presence of the Hekla 4 tephra (c. 3830 yr BP) resting on the upper surface of the younger flood sand. These sed…
Good for glaciers, bad for people? Archaeologically relevant climate models developed from reconstructions of glacier mass balance
Reservoirs and Radiocarbon
This paper examines 2 potential sources of the radiocarbon offset between human and terrestrial mammal (horse) bones recovered from Norse (∼AD 870–1000) pagan graves in Mývatnssveit, north Iceland. These are the marine and freshwater 14 C reservoir effects that may be incorporated into human bones from dietary sources. The size of the marine 14 C reservoir effect (MRE) during the Norse period was investigated by measurement of multiple paired sam…
Abandoned Farms, Volcanic Impacts, and Woodland Management
Geomorphological maps and nine soil profiles containing 92 tephra layers have been examined to explore the nature of medieval environmental change in Þjórsárdalur, Iceland, where farms are thought to have been abandoned after the massive tephra fall from the eruption of Hekla in 1104 A.D. This paper presents evidence for continued human activity in the area in the two centuries following the 1104 A.D. eruption, indicating that continued utilizati…
Norse Greenland Settlement
Changing economies and patterns of trade, rather than climatic deterioration, could have critically marginalized the Norse Greenland settlements and effectively sealed their fate. Counter-intuitively, the end of Norse Greenland might not be symptomatic of a failure to adapt to environmental change, but a consequence of successful wider economic developments of Norse communities across North Atlantic. Data from Greenland, the Faroe Islands, and me…
The Role of Climate in Settlement and Landscape Change in the North Atlantic Islands
In order to assess possible contributions of climate change to the human ecology of the Faroe Islands, proxy climate data from the Greenland Icesheet Project 2 (GISP2) are evaluated in relation to settlement and landscape \nchanges in the Faroes and other North Atlantic islands. Our aim is to identify \ntimes of unpredictable change in the context of cultural and environmental \n'memories'. A pan-Atlantic perspective is used to assess the utility…
Two millennia of glacier advances from southern Iceland dated by tephrochronology
Two glaciers at Eyjafjallajökull, south Iceland, provide a record of multiple episodes of glacier advance since the Sub-Atlantic period, ca. 2000 yr ago. A combination of tephrochronology and lichenometry was applied to date ice-marginal moraines, tills and meltwater deposits. Two glacier advances occurred before the 3rd century AD, others in the 9th and 12th centuries bracketing the Medieval Warm Period, and five groups of advances occurred betw…
Conceptual Models of 1200 Years of Icelandic Soil Erosion Reconstructed Using Tephrochronology
With reference to 18 tephra isochrones, we present six reconstructions of landscapes in South Iceland at precise times through the last 1200 years and develop three related models of soil erosion. Before the late ninth century A.D., the landscapes of Iceland were without people and resilient to natural processes. The initial impact of human settlement in the ninth century AD was most profound in ecologically marginal areas, where major anthropoge…
Cultural adaptation, compounding vulnerabilities and conjunctures in Norse Greenland
Norse Greenland has been seen as a classic case of maladaptation by an inflexible temperate zone society extending into the arctic and collapse driven by climate change. This paper, however, recognizes the successful arctic adaptation achieved in Norse Greenland and argues that, although climate change had impacts, the end of Norse settlement can only be truly understood as a complex socioenvironmental system that includes local and interregional…
Reconstructing late-Holocene environmental change in Iceland using high-resolution tephrochronology
High resolution records of sediment accumulation are necessary to evaluate subtle temporal and spatial variations in sediment flux, especially in the context of decadal-scale human–environment interactions. Digital photography using consumer-grade cameras may be used to gather thousands of stratigraphic measurements to ± 1 mm (potentially equivalent to ± 2 years of accumulation) and provide data amenable to statistical manipulation. This new appr…
Geography (29 works) · Geology and Paleoclimatology Research (28 works) · Archaeology (24 works) · Geology (24 works) · Physical geography (21 works) · Archaeology and ancient environmental studies (18 works) · Ecology (17 works) · Paleontology (15 works) · Tephra (14 works) · Volcano (14 works)