Characterization and quantification of Holocene colluvial and alluvial sediments in the Valdaine Region (southern France)

Notebaert, Bastiaan; Berger, Jean‐François; Brochier, Jacques Léopold

doi:10.1177/0959683614540946

Cited by 22 publications

(13 citation statements)

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“…However, these events are often considered as minor influences on geomorphological processes when compared to increasing human impacts (e.g., Lavrieux et al, 2013). Rather, the progressive anthropogenic forcing of natural systems is highly correlated with the development of agriculture and urbanization processes (Lang, Niller, & Rind, 2003;Notebaert, Berger, & Brochier, 2014). The latter has often been considered to be restricted to Mediterranean Europe, but is now known to have begun in Central and Western Europe during the late Bronze Age (LBA) and the Iron Age (Fernández-götz, Wendling, & Winger, 2014;Milcent, 2007Milcent, , 2012.…”

Section: Introductionmentioning

confidence: 99%

Geoarchaeology and chronostratigraphy of the Lac du Puy intraurban protohistoric wetland, Corent, France

et al. 2018

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This paper presents the first results of the geoarchaeological study of an unusual hilltop wetland, located within the protohistoric proto‐urban site of Corent in the French Massif Central. This small depression offers an exceptionally local sedimentary record that provided valuable data on long‐term human–environment interactions, as well as proto‐urbanization of the first millennium B.C.E. Field survey revealed a major archaeological discovery: a large ensemble of 114 Iron Age storage pits excavated in clayey deposits. The geoarchaeological analysis of stratigraphic logs and cross‐sections completed by geophysical survey and radiocarbon dating allowed us to refine the chronology of these structures. Here, we suggest these structures are probably contemporary with the Hallstatt occupation of the site (600–425 B.C.E.), consistent with the emergence at Corent of a short‐lived proto‐urban environment during this period. These investigations also allowed us to characterize the main evolution phases of the basin and the diversity of human impacts from first disturbance in the Early Neolithic to its final destruction in the Roman period. These findings highlight the nonlinear nature of the socio‐environmental interactions and the definitive shift to an “anthroposystem” as a consequence of major disturbance in the first Iron Age, centuries before the development of urban settlements in the oppida period.

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Section: Introductionmentioning

confidence: 99%

Geoarchaeology and chronostratigraphy of the Lac du Puy intraurban protohistoric wetland, Corent, France

et al. 2018

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“…Roman deposition rates are comparable to deposition rates during intense occupation phases which have taken place in the last 1000 years in catchment areas of Central and Western Europe. This is clear evidence for a generalized anthropogenic forcing on the landscape that occurred from the Iron Age to the end of the Roman period (100 BC-450 AD), with an immense rise in the sediment deposition (7-16 times) in comparison with the Neolithic/Bronze Age period (Notebaert et al, 2014). We found no influence of typically short-phased climatic fluctuations (pluri-decadal) in the sedimentation record.…”

Section: Discussionmentioning

confidence: 61%

“…When comparing quantities with those mentioned in the literature, we converted volumes to mass by using a bulk density of 1.5 Â 10 3 kg m À3 , comparable with other studies (e.g., Hoffmann et al, 2007;Notebaert et al, 2014). In order to take into account scaling effects between catchments, values for sediment mass are converted to area-specific values by dividing through the catchment area.…”

Section: Methodsmentioning

confidence: 98%

“…We used the same quantification we carried out for Notebaert et al (2014). For each site (a site is a coring transect and/or a trench) we calculated the average sediment thickness.…”

Section: Methodsmentioning

confidence: 99%

“…Next, landscape units were mapped based on Quaternary geomorphology and topography (Fig. 1C, based on Notebaert et al (2014)), and based on the site data we calculated the average sediment thickness for each of these units. The catchment-wide surface area of each landscape unit is then combined with these average sediment thickness values to obtain the total catchment-wide sediment deposition.…”

Section: Methodsmentioning

confidence: 99%

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Quantifying the anthropogenic forcing on soil erosion during the Iron Age and Roman Period in southeastern France

Notebaert¹,

Berger²

2014

Anthropocene

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A B S T R A C TThis study combines a traditional qualitative description of sedimentary units with a quantitative sediment budget approach to document the colluvial and alluvial sediment dynamics in the Valdaine region (Drôme, France) from the Iron Age to the early medieval period (700 BC-900 AD). Three transects through colluvial and alluvial deposits are discussed in detail to demonstrate the way in which absolute dating techniques and archeological evidence are combined to establish a stratigraphic framework. This framework is applied to 16 sites and further combined with an existing sediment budget to quantitatively reconstruct the catchment-wide sedimentary evolution. Results show large variations over time in sediment deposition: a first phase from 700 to 400/300 BC, followed by an incision phase between 300/ 200 BC and 100/50 BC, an unprecedented peak in deposition during the Roman period (100/50 BC-450 AD), with continued but decreased deposition from 450 to 900 AD. These results show how sediment deposition relates to increased population density and anthropogenic land use on a timescale of a few centuries. The analysis indicates important erosion and deposition phases during the Roman period, considered to be a warmer period (Roman warm period). A relation to particular regional climate variations could not be discovered, possibly because of the temporal resolution of the sedimentological data that still fail to identify events lasting a few decades to a century.

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The fluvial architecture of buried floodplain sediments of the Weiße Elster River (Germany) revealed by a novel method combination of drill cores with two‐dimensional and spatially resolved geophysical measurements

Suchodoletz

Pohle

Khosravichenar

et al. 2022

Earth Surf Processes Landf

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The complex and non-linear fluvial river dynamics are characterized by repeated periods of fluvial erosion and re-deposition in different parts of the floodplain. Understanding the fluvial architecture (i.e. the three-dimensional arrangement and genetic interconnectedness of different sediment types) is therefore fundamental to obtain well-based information about controlling factors. However, investigating the fluvial architecture in buried floodplain deposits without natural exposures is challenging. We studied the fluvial architecture of the middle Weiße Elster floodplain in Central Germany, an extraordinary long-standing archive of Holocene flooding and

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Characterization and quantification of Holocene colluvial and alluvial sediments in the Valdaine Region (southern France)

Cited by 22 publications

References 50 publications

Geoarchaeology and chronostratigraphy of the Lac du Puy intraurban protohistoric wetland, Corent, France

Geoarchaeology and chronostratigraphy of the Lac du Puy intraurban protohistoric wetland, Corent, France

Quantifying the anthropogenic forcing on soil erosion during the Iron Age and Roman Period in southeastern France

The fluvial architecture of buried floodplain sediments of the Weiße Elster River (Germany) revealed by a novel method combination of drill cores with two‐dimensional and spatially resolved geophysical measurements

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