Fabien Arnaud
Datos Biográficos
| ID | 2738744 |
|---|---|
| NOMBRE | Fabien Arnaud |
| NOMBRES | Fabien |
| APELLIDO | Arnaud |
| FIRMA | ARNAUD F |
| AFILIACIONES | Centre National de la Recherche Scientifique |
| ORCID | 0000-0002-8784-1384 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 32 |
| TOTAL DE CITAS | 98 |
| TOTAL COMO AUTOR | 32 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 1888 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2024 |
| ÍNDICE H | 5 |
Half of the soil erosion in the Alps during the Holocene is explained by transient erosion crises as a consequence of rapid human land clearing
Human land use changes have altered soil erosion for millennia with extensive consequences on terrestrial and aquatic ecosystems as well as on biogeochemical cycles along the land-ocean continuum. Despite their great importance, past erosion trends have high uncertainties limiting quantitative estimates of long-term erosion dynamics. Here, we applied a new approach combining well-dated paleo-records of soil erosion from lake sediments and a spati…
Theoretical Principles and Perspectives of Hyperspectral Imaging Applied to Sediment Core Analysis
Hyperspectral imaging is a recent technology that has been gaining popularity in the geosciences since the 1990s, both in remote sensing and in the field or laboratory. Indeed, it allows the rapid acquisition of a large amount of data that are spatialized on the studied object with a low-cost, compact, and automatable sensor. This practical article aims to present the current state of knowledge on the use of hyperspectral imaging for sediment cor…
Hydro-climatic fluctuations and their impact on Lake Abhe environments (Ethiopia & Djibouti)
lt;p>Throughout the last 14 ka, tropical Africa experienced significant hydrological changes that were mainly driven by the orbital precession cycle, which controls the intensity of the African monsoon. Recent studies conducted in lake and deltaic sedimentary records suggest that long-term monsoon humid oscillations (African Humid Period / AHP ~14 – ~6 ka) were punctuated by centennial-scale episodes of hyperaridity. However, the abrupt or gradua…
Lake Sedimentary DNA Research on Past Terrestrial and Aquatic Biodiversity
The use of lake sedimentary DNA to track the long-term changes in both terrestrial and aquatic biota is a rapidly advancing field in paleoecological research. Although largely applied nowadays, knowledge gaps remain in this field and there is therefore still research to be conducted to ensure the reliability of the sedimentary DNA signal. Building on the most recent literature and seven original case studies, we synthesize the state-of-the-art an…
Paravani, a puzzling lake in the South Caucasus
Climate change and human lakeside adaptation in the Central Afar Region (Lake Abhe basin, Ethiopia & Djibouti) during the Later Stone Age - Neolithic transition
lt;p>Throughout the last 20 ka, tropical Africa was the site of significant hydrological changes related to variations in the intensity of the African monsoon. Recent studies conducted in lake and deltaic sedimentary records suggest that gradual long-term monsoon humid oscillations (African Humid Period ~14 – ~6 ka) were punctuated by centennial-scale episodes of hyperaridity (HS1, YD, 8.2 ka, 4.2 ka). These abrupt hydrological changes could have…
Deciphering centurial anthropogenic pollution processes in large lakes dominated by socio-economic impacts
Legacy of early anthropogenic effects on recent lake eutrophication (Lake Bénit, northern French Alps)
One thousand seven hundred years of interaction between glacial activity and flood frequency in proglacial Lake Muzelle (western French Alps)
Local glacial fluctuations and flood occurrences were investigated in the sediment sequence of proglacial Lake Muzelle. Based on geochemical analysis and organic matter content established using loss on ignition and reflectance spectroscopy, we identified six periods of increased glacial activity over the last 1700 yr. Each is in accordance with records from reference glaciers in the Alps. A total of 255 graded layers were identified and interpre…
Land use development and environmental responses since the Neolithic around Lake Paladru in the French Pre-alps
Memorial policies and restoration of Croatian tourism two decades after the war in former Yugoslavia
Since 2005, tourism in Croatia is growing exponentially, making the country a major tourist destination in Europe. Yet the 1991–1995 war that bloodied the Croatian territory has endangered the tourism sector. On the one hand, the fighting caused the demolition of many infrastructures and the destruction of part of the local architectural heritage. On the other hand, the media coverage of the war and extreme violence of ethnic cleansing campaigns …
Erosion record in Lake La Thuile sediments (Prealps, France)
Lake La Thuile, in the Northern French Prealps (874 m a.s.l.), provides an 18-m long sedimentary sequence spanning the entire Lateglacial/Holocene period. The high-resolution multi-proxy (sedimentological, palynological, and geochemical) analysis of the uppermost 6.2 m reveals the Holocene dynamics of erosion in the catchment in response to landscape modifications. The mountain belt is at relevant altitude to study past human activities, and the …
Yr sedimentary record of climatic and anthropogenic signals in Lake Aydat (French Massif Central)
A 19 m long sedimentary record retrieved in Lake Aydat (French Massif Central) covers the last 6700 yr at a high resolution. A multiproxy approach (density, magnetic susceptibility, XRF, Rock-Eval, pollen and non-pollen palynomorph analyses and a historical archives study) was used to characterise and propose a model of sedimentation. The high deposition rate results from the combined effects of the high suspension load of the river, autochthonou…
Non-reversible geosystem destabilisation at 4200 cal. BP
A 144-cm-long core was obtained in Lake Petit (2200 m a.s.l., Mediterranean French Alps) in order to reconstruct past interactions between humans, the environment and the climate over the last five millennia using a multidisciplinary approach involving sedimentological, geochemical and botanical analyses. We show a complex pattern of environmental transformation. From 4800 to 4200 cal. BP, podzol-type soils progressively developed under forest co…
Land-use changes and environmental dynamics in the upper Rhone valley since Neolithic times inferred from sediments in Lac Moras
Lac Moras is a small lake located on a low-elevation plateau in the upper Rhône Valley (304 m a.s.l.). The upper 5 m of accumulated sediment in the lake span 7500 years and offer a detailed record of environmental perturbations and land-use history at a local scale. A multiproxy analysis (pollen, charcoal and geochemical parameters) led to the establishment of four periods of landscape dynamics. The first evidence of human impacts was recorded du…
Years of extreme precipitation patterns over the Mediterranean French Alps and possible forcing mechanisms
Investigation of Lake Allos sediments revealed ~ 160 graded layers, interpreted as flood deposits, over the last 1400 yr. Comparisons with records of historic floods support the interpretation of flood deposits and suggest that most recorded flood events are the result of intense meso-scale precipitation events. As there is no evidence for any major changes in erosion processes in the catchment since the Medieval Warm Period (MWP), we interpret t…
Frequency and intensity of high-altitude floods over the last 3.5 ka in northwestern French Alps (Lake Anterne)
In central Western Europe, several studies have shown that colder Holocene periods, such as the Little Ice Age, also correspond to wet periods. However, in mountain areas which are highly sensitive to erosion processes and where precipitation events can be localized, past evolution of hydrological activity might be more complicated. To assess these past hydrological changes, a paleolimnological approach was applied on a 13.4-m-long sediment core …
Late Holocene evolution of precipitation and wind velocity on Kerguelen Islands, Subantarctic Indian Ocean
The Alps with little ice”
A sedimentary record of Holocene surface runoff events and earthquake activity from Lake Iseo (Southern Alps, Italy)
This study presents a record of Holocene surface runoff events and several large earthquakes, preserved in the sediments of pre-Alpine Lake Iseo, northern Italy. A combination of high-resolution seismic surveying, detailed sediment microfacies analysis, non-destructive core-scanning techniques and AMS 14 C dating of terrestrial macrofossils was used to detect and date these events. Based on this approach, our data shed light on past seismic activ…
Holocene land-use evolution and associated soil erosion in the French Prealps inferred from Lake Paladru sediments and archaeological evidences
Vukovar, de ville multiculturelle à ville croate
Vukovar, the once charming multicultural town at the easternmost edge of Croatia, was badly damaged during the Yugoslav conflict that put the region on fire in the early 1990s. The policies of territorial homogenization at work during the war led to the destruction of its infrastructure and its social fabric, instilling fear and hatred between Croatian and Serbian communities. Two decades after the conflict, the splitting between populations is d…
Changes in erosion patterns during the Holocene in a currently treeless subalpine catchment inferred from lake sediment geochemistry (Lake Anterne, 2063 m a.s.l., NW French Alps)
A high-resolution sedimentological and geochemical study was performed on a 20 m long core from the alpine Lake Anterne (2063 m a.s.l., NW French Alps) spanning the last 10 ka. Sedimentation is mainly of minerogenic origin. The organic matter quantity (TOC%) as well as its quality (hydrogen (HI) and oxygen (OI) indices) both indicate the progressive onset and subsequent stabilization of vegetation cover in the catchment from 9950 to 5550 cal. BP.…
Solar and proxy-sensitivity imprints on paleohydrological records for the last millennium in west-central Europe
This paper presents a lake-level record established for the last millennium at Lake Saint-Point in the French Jura Mountains. A comparison of this lake-level record with a solar irradiance record supports the hypothesis of a solar forcing of variations in the hydrological cycle linked to climatic oscillations over the last millennium in west-central Europe, with higher lake levels during the solar minimums of Oort (around AD 1060), Wolf (around A…
Une pollution métallique antique en haute vallée de l’Arve
Une séquence sédimentaire de huit mètres, couvrant les derniers 2 000 ans a été prélevée dans le lac d’Anterne (Haute-Savoie, France) par 13 m de fond. Après datation par le radiocarbone une série d’analyses des concentrations en plomb a été réalisée suivant une résolution d’environ 40 ans. Cette série met en évidence une pollution importante par ce métal au cours du iie siècle de notre ère. Si les traces archéologiques d’exploitation minière ant…
Years of Rhône river flooding activity in Lake Le Bourget, France
Magnetic susceptibility (MS) was measured with high resolution (5 mm) on a 9 m long, 14 C dated core from Lake Le Bourget (Savoie, France), spanning the last 7200 years. The strong correlation (R=0.85) of the MS with the silicate-borne suite of elements (Si, Al, Fe, Mg, K) and anti-correlation with the carbonate content (R =-0.87) allows it to be used as a proxy for the fluctuations of the abundance of riverborne clastic fraction versus authigeni…
Holocene land-use evolution and associated soil erosion in the French Prealps inferred from Lake Paladru sediments and archaeological evidences
Possible complexity of the climatic event around 4300—3800 cal. BP in the central and western Mediterranean
This paper presents an event stratigraphy based on data documenting lake-level changes as well as volcanic eruptions over the period 4500—3500 cal. BP from sediment sequences of Lakes Accesa in Tuscany (north-central Italy) and Maliq (Albania) in the central Mediterranean. The available data make it possible to recognise a tripartite climatic oscillation between c. 4300—3800 cal. BP. A phase characterised by drier conditions at c. 4100—3950 cal. …
Millet cultivation history in the French Alps as evidenced by a sedimentary molecule
Erosion record in Lake La Thuile sediments (Prealps, France)
Lake La Thuile, in the Northern French Prealps (874 m a.s.l.), provides an 18-m long sedimentary sequence spanning the entire Lateglacial/Holocene period. The high-resolution multi-proxy (sedimentological, palynological, and geochemical) analysis of the uppermost 6.2 m reveals the Holocene dynamics of erosion in the catchment in response to landscape modifications. The mountain belt is at relevant altitude to study past human activities, and the …
Non-reversible geosystem destabilisation at 4200 cal. BP
A 144-cm-long core was obtained in Lake Petit (2200 m a.s.l., Mediterranean French Alps) in order to reconstruct past interactions between humans, the environment and the climate over the last five millennia using a multidisciplinary approach involving sedimentological, geochemical and botanical analyses. We show a complex pattern of environmental transformation. From 4800 to 4200 cal. BP, podzol-type soils progressively developed under forest co…
A sedimentary record of Holocene surface runoff events and earthquake activity from Lake Iseo (Southern Alps, Italy)
This study presents a record of Holocene surface runoff events and several large earthquakes, preserved in the sediments of pre-Alpine Lake Iseo, northern Italy. A combination of high-resolution seismic surveying, detailed sediment microfacies analysis, non-destructive core-scanning techniques and AMS 14 C dating of terrestrial macrofossils was used to detect and date these events. Based on this approach, our data shed light on past seismic activ…
Impacts of new agricultural practices on soil erosion during the Bronze Age in the French Prealps
In order to better understand the evolution of past climate—human—environment interactions in the northwestern Alps during the Holocene, we have analysed the lipid content of two cores taken from the sediments of Lake le Bourget (French Alps). By using a specific molecular biomarker of Panicum miliaceum (broomcorn millet) previously defined and a new molecular marker of soil erosion, we demonstrate that the onset of millet cultivation coincides w…
Memorial policies and restoration of Croatian tourism two decades after the war in former Yugoslavia
Since 2005, tourism in Croatia is growing exponentially, making the country a major tourist destination in Europe. Yet the 1991–1995 war that bloodied the Croatian territory has endangered the tourism sector. On the one hand, the fighting caused the demolition of many infrastructures and the destruction of part of the local architectural heritage. On the other hand, the media coverage of the war and extreme violence of ethnic cleansing campaigns …
Land-use changes and environmental dynamics in the upper Rhone valley since Neolithic times inferred from sediments in Lac Moras
Lac Moras is a small lake located on a low-elevation plateau in the upper Rhône Valley (304 m a.s.l.). The upper 5 m of accumulated sediment in the lake span 7500 years and offer a detailed record of environmental perturbations and land-use history at a local scale. A multiproxy analysis (pollen, charcoal and geochemical parameters) led to the establishment of four periods of landscape dynamics. The first evidence of human impacts was recorded du…
Yr sedimentary record of climatic and anthropogenic signals in Lake Aydat (French Massif Central)
A 19 m long sedimentary record retrieved in Lake Aydat (French Massif Central) covers the last 6700 yr at a high resolution. A multiproxy approach (density, magnetic susceptibility, XRF, Rock-Eval, pollen and non-pollen palynomorph analyses and a historical archives study) was used to characterise and propose a model of sedimentation. The high deposition rate results from the combined effects of the high suspension load of the river, autochthonou…
Land use development and environmental responses since the Neolithic around Lake Paladru in the French Pre-alps
Late-Holocene summer temperature reconstruction from chironomid assemblages of Lake Anterne, northern French Alps
We present a chironomid-based reconstruction of late-Holocene temperature from Lake Anterne (2060 m a.s.l.) in the northern French Alps. Chironomid assemblages were studied in 49 samples along an 8 m long sediment core covering the last 1800 years. July air temperatures were inferred using an inference model based on the distribution of chironomid assemblages in 100 Swiss lakes. The transfer function has a leave-one-out cross-validated coefficien…
Procession pagano-chrétienne de la Saint-Jean
Arnaud F. Procession pagano-chrétienne de la Saint-Jean. In: Bulletins de la Société d'anthropologie de Paris, III° Série. Tome 11, 1888. pp. 668-669
Sépulture sous forme de charnier encore en usage
Arnaud F. Sépulture sous forme de charnier encore en usage.. In: Bulletins de la Société d'anthropologie de Paris, IV° Série. Tome 3, 1892. pp. 537-538
Years of Rhône river flooding activity in Lake Le Bourget, France
Magnetic susceptibility (MS) was measured with high resolution (5 mm) on a 9 m long, 14 C dated core from Lake Le Bourget (Savoie, France), spanning the last 7200 years. The strong correlation (R=0.85) of the MS with the silicate-borne suite of elements (Si, Al, Fe, Mg, K) and anti-correlation with the carbonate content (R =-0.87) allows it to be used as a proxy for the fluctuations of the abundance of riverborne clastic fraction versus authigeni…
Millet cultivation history in the French Alps as evidenced by a sedimentary molecule
Impacts of new agricultural practices on soil erosion during the Bronze Age in the French Prealps
In order to better understand the evolution of past climate—human—environment interactions in the northwestern Alps during the Holocene, we have analysed the lipid content of two cores taken from the sediments of Lake le Bourget (French Alps). By using a specific molecular biomarker of Panicum miliaceum (broomcorn millet) previously defined and a new molecular marker of soil erosion, we demonstrate that the onset of millet cultivation coincides w…
Late-Holocene summer temperature reconstruction from chironomid assemblages of Lake Anterne, northern French Alps
We present a chironomid-based reconstruction of late-Holocene temperature from Lake Anterne (2060 m a.s.l.) in the northern French Alps. Chironomid assemblages were studied in 49 samples along an 8 m long sediment core covering the last 1800 years. July air temperatures were inferred using an inference model based on the distribution of chironomid assemblages in 100 Swiss lakes. The transfer function has a leave-one-out cross-validated coefficien…
Possible complexity of the climatic event around 4300—3800 cal. BP in the central and western Mediterranean
This paper presents an event stratigraphy based on data documenting lake-level changes as well as volcanic eruptions over the period 4500—3500 cal. BP from sediment sequences of Lakes Accesa in Tuscany (north-central Italy) and Maliq (Albania) in the central Mediterranean. The available data make it possible to recognise a tripartite climatic oscillation between c. 4300—3800 cal. BP. A phase characterised by drier conditions at c. 4100—3950 cal. …
Solar and proxy-sensitivity imprints on paleohydrological records for the last millennium in west-central Europe
This paper presents a lake-level record established for the last millennium at Lake Saint-Point in the French Jura Mountains. A comparison of this lake-level record with a solar irradiance record supports the hypothesis of a solar forcing of variations in the hydrological cycle linked to climatic oscillations over the last millennium in west-central Europe, with higher lake levels during the solar minimums of Oort (around AD 1060), Wolf (around A…
Une pollution métallique antique en haute vallée de l’Arve
Une séquence sédimentaire de huit mètres, couvrant les derniers 2 000 ans a été prélevée dans le lac d’Anterne (Haute-Savoie, France) par 13 m de fond. Après datation par le radiocarbone une série d’analyses des concentrations en plomb a été réalisée suivant une résolution d’environ 40 ans. Cette série met en évidence une pollution importante par ce métal au cours du iie siècle de notre ère. Si les traces archéologiques d’exploitation minière ant…
Vukovar, de ville multiculturelle à ville croate
Vukovar, the once charming multicultural town at the easternmost edge of Croatia, was badly damaged during the Yugoslav conflict that put the region on fire in the early 1990s. The policies of territorial homogenization at work during the war led to the destruction of its infrastructure and its social fabric, instilling fear and hatred between Croatian and Serbian communities. Two decades after the conflict, the splitting between populations is d…
Changes in erosion patterns during the Holocene in a currently treeless subalpine catchment inferred from lake sediment geochemistry (Lake Anterne, 2063 m a.s.l., NW French Alps)
A high-resolution sedimentological and geochemical study was performed on a 20 m long core from the alpine Lake Anterne (2063 m a.s.l., NW French Alps) spanning the last 10 ka. Sedimentation is mainly of minerogenic origin. The organic matter quantity (TOC%) as well as its quality (hydrogen (HI) and oxygen (OI) indices) both indicate the progressive onset and subsequent stabilization of vegetation cover in the catchment from 9950 to 5550 cal. BP.…
Years of extreme precipitation patterns over the Mediterranean French Alps and possible forcing mechanisms
Investigation of Lake Allos sediments revealed ~ 160 graded layers, interpreted as flood deposits, over the last 1400 yr. Comparisons with records of historic floods support the interpretation of flood deposits and suggest that most recorded flood events are the result of intense meso-scale precipitation events. As there is no evidence for any major changes in erosion processes in the catchment since the Medieval Warm Period (MWP), we interpret t…
Frequency and intensity of high-altitude floods over the last 3.5 ka in northwestern French Alps (Lake Anterne)
In central Western Europe, several studies have shown that colder Holocene periods, such as the Little Ice Age, also correspond to wet periods. However, in mountain areas which are highly sensitive to erosion processes and where precipitation events can be localized, past evolution of hydrological activity might be more complicated. To assess these past hydrological changes, a paleolimnological approach was applied on a 13.4-m-long sediment core …
Late Holocene evolution of precipitation and wind velocity on Kerguelen Islands, Subantarctic Indian Ocean
The Alps with little ice”
A sedimentary record of Holocene surface runoff events and earthquake activity from Lake Iseo (Southern Alps, Italy)
This study presents a record of Holocene surface runoff events and several large earthquakes, preserved in the sediments of pre-Alpine Lake Iseo, northern Italy. A combination of high-resolution seismic surveying, detailed sediment microfacies analysis, non-destructive core-scanning techniques and AMS 14 C dating of terrestrial macrofossils was used to detect and date these events. Based on this approach, our data shed light on past seismic activ…
Holocene land-use evolution and associated soil erosion in the French Prealps inferred from Lake Paladru sediments and archaeological evidences
Yr sedimentary record of climatic and anthropogenic signals in Lake Aydat (French Massif Central)
A 19 m long sedimentary record retrieved in Lake Aydat (French Massif Central) covers the last 6700 yr at a high resolution. A multiproxy approach (density, magnetic susceptibility, XRF, Rock-Eval, pollen and non-pollen palynomorph analyses and a historical archives study) was used to characterise and propose a model of sedimentation. The high deposition rate results from the combined effects of the high suspension load of the river, autochthonou…
Non-reversible geosystem destabilisation at 4200 cal. BP
A 144-cm-long core was obtained in Lake Petit (2200 m a.s.l., Mediterranean French Alps) in order to reconstruct past interactions between humans, the environment and the climate over the last five millennia using a multidisciplinary approach involving sedimentological, geochemical and botanical analyses. We show a complex pattern of environmental transformation. From 4800 to 4200 cal. BP, podzol-type soils progressively developed under forest co…
Land-use changes and environmental dynamics in the upper Rhone valley since Neolithic times inferred from sediments in Lac Moras
Lac Moras is a small lake located on a low-elevation plateau in the upper Rhône Valley (304 m a.s.l.). The upper 5 m of accumulated sediment in the lake span 7500 years and offer a detailed record of environmental perturbations and land-use history at a local scale. A multiproxy analysis (pollen, charcoal and geochemical parameters) led to the establishment of four periods of landscape dynamics. The first evidence of human impacts was recorded du…
Erosion record in Lake La Thuile sediments (Prealps, France)
Lake La Thuile, in the Northern French Prealps (874 m a.s.l.), provides an 18-m long sedimentary sequence spanning the entire Lateglacial/Holocene period. The high-resolution multi-proxy (sedimentological, palynological, and geochemical) analysis of the uppermost 6.2 m reveals the Holocene dynamics of erosion in the catchment in response to landscape modifications. The mountain belt is at relevant altitude to study past human activities, and the …
Land use development and environmental responses since the Neolithic around Lake Paladru in the French Pre-alps
Memorial policies and restoration of Croatian tourism two decades after the war in former Yugoslavia
Since 2005, tourism in Croatia is growing exponentially, making the country a major tourist destination in Europe. Yet the 1991–1995 war that bloodied the Croatian territory has endangered the tourism sector. On the one hand, the fighting caused the demolition of many infrastructures and the destruction of part of the local architectural heritage. On the other hand, the media coverage of the war and extreme violence of ethnic cleansing campaigns …
One thousand seven hundred years of interaction between glacial activity and flood frequency in proglacial Lake Muzelle (western French Alps)
Local glacial fluctuations and flood occurrences were investigated in the sediment sequence of proglacial Lake Muzelle. Based on geochemical analysis and organic matter content established using loss on ignition and reflectance spectroscopy, we identified six periods of increased glacial activity over the last 1700 yr. Each is in accordance with records from reference glaciers in the Alps. A total of 255 graded layers were identified and interpre…
Legacy of early anthropogenic effects on recent lake eutrophication (Lake Bénit, northern French Alps)
Geology and Paleoclimatology Research (23 obras) · Geography (22 obras) · Geology (21 obras) · Physical geography (19 obras) · Holocene (16 obras) · Archaeology (14 obras) · Oceanography (14 obras) · Geomorphology (12 obras) · Paleontology (11 obras) · Sediment (11 obras)