Geoarchaeology-An International Journal最新文献

We provide a review of micropalaeontological research on Ostracoda from the Middle Pleistocene (MIS 11, Holstein interglacial) hominin site Bilzingsleben in Thuringia in Central Germany from 1963 to the 1990s. Samples from four sections inside and six search pits outside the excavation area were investigated and, in total, 49 ostracod species were identified. The ostracod assemblages of the sections mirror the complex and small-scale palaeoenvironmental evolution of the site from a seeping-spring to fluviatile, lacustrine and finally seeping-spring habitat in which a massive tufa layer formed and prevented erosion of the sediments beneath. Pleistocene index fossils are represented by Ilyocypris quinculminata from search pit 3/sample 9933 and Scottia browniana from section 70. Both species indicate the age dating of MIS 11 for the tufa deposit. The results of this study facilitate new insights into site formation processes, enable refinement of the interpretation of the archaeological record and shed light on the question: Does the find-bearing layer at the Bilzingsleben site contain in situ remains of a camp site of Homo erectus or not? Our results suggest that the site is not unaffected at least.

Human-induced activities around Lake Lilaste in the central Latvian sandy coastal area have been reconstructed over a 1300-year period. We use a combination of well-established geoarchaeological research methods (¹⁴C dating, pollen, nonpollen palynomorphs, REVEALS modeling, diatoms, C/N ratio, magnetic susceptibility, loss on ignition) to study the human impact on the environment. Historical context aids focus on records of resource (e.g., timber) exploitation in the area. The continuous record of human indicator pollen and agricultural landscape suggests this area was suitable for habitation well before the studied time period, likely due to the ecosystem services it provided. Our proxy-based study, combined with historical background, reveals a significant human impact on the terrestrial environment since the 14th century. Deficiency of trees in the northern outskirts of Riga during the 17th–19th century was likely. Anthropogenic activity has led to both deforestation and change in species composition. Our paleo records indicate recognizable human-driven legacy in current seacoast landscape.

Lidar has become an essential tool for the mapping and interpretation of natural and archaeological features within the landscape. It is also increasingly integrated and visualized within geoarchaeological deposit models, providing valuable topographic and stratigraphic control from the contemporary ground surface downwards. However, there is a wide range of methods available for the visualization of lidar elevation models and a review of existing research suggests that it remains unclear which are most appropriate for geoarchaeological applications. This paper addresses this issue by providing an overview and quantitative evaluation of these techniques with examples from archaeologically resource-rich alluvial environments. Owing to the relatively low-relief nature of the terrain within these temperate lowland flood plain environments, the results show that there is a small number of visualization methods that demonstrably improve the detection of geomorphological landforms that can be related to the variable distribution of archaeological resources. More specifically, a combination of Relative Elevation Models combined with Simple Local Relief Models offered an optimal approach that subsequently allows integration with deposit models. Whilst the presented examples are from a flood plain setting, deposit models are pertinent to a range of landscape contexts and the methodology applied here has wider applicability.

Industrial-scale metal mining has long been a feature of developing economies. Processing ores to recover minerals has generated large quantities of waste rock, tailings and contaminants. Mining-related deposits, along with associated soil and water geochemistry, river modifications and other environmental changes, are a product of the nature, scale and intensity of past operations. These artefacts of historical mining create anthropogenic landscapes that extend far beyond individual sites due to the dispersal of mine waste by rivers and pose enduring threats to human and ecosystem health. Their presence and significance, however, are often overlooked by heritage and environmental managers. To be acknowledged as artefacts of the historical mining industry, landscape features must be identified and characterised with reference to the human activities that triggered their formation. This requires an interdisciplinary approach that incorporates anthropogenic landscape change at a regional scale. In this paper, we integrate archaeological, geomorphological and geochemical evidence to identify and analyse mining-related changes to the Loddon River valley in Victoria, Australia. Nineteenth-century gold mining caused extensive erosion of creeks and gullies and mobilised sediments that filled channels and spread over floodplains. In addition, tailing deposits concentrated arsenic at levels significantly above environmental background conditions. Recognising these legacies of historical mining is vital to understanding mining heritage and to managing healthy rivers, environments and communities.

Geostatistics has become a powerful method for investigating complex spatial variations of prehistoric settlements in floodplains and other geomorphological settings. A geoarchaeological drilling program that covers most of the Sha-Ying River Basin provides a rare opportunity with unusually detailed environmental data to contest and develop the geostatistics method, which proves to be essential, in combination with archaeological data, to understand long-term (9000–2500 B.P.) patterns of human inhabitation and adaption to volatile floodplain environments in eastern Central China. We analysed the variography and multivariate ordination of the borehole data and explored the complexities of landform evolution, with reference to sedimentation processes and soil development in the floodplain of the Sha-Ying River. The recurrent impact of river floods on regional landforms is manifested by spatial-autocorrelated properties over distances up to 10 km, sometimes with directional trends. We then developed a model of landform evolution through kriging and compared the model with detailed reconstruction of archaeological settlement patterns. Our results illustrate long-term socio-environmental dynamics by which human communities first populated and then adapted in diverse ways to the changing floodplain environments from the early to middle Holocene. This improved method will have far-reaching implications for future studies on similar geomorphological settings across vast floodplains of Central China and other global regions.

We present results from a systematic interdisciplinary study on (pre-)historic rural settlement and landscape development in an upland region of northern Bavaria, Germany. The archaeological and geoarchaeological investigations—supported by radiocarbon dating, optically stimulated luminescence dating, and palaeoecological analysis—were performed to (i) identify so far unknown prehistoric rural settlement sites, (ii) determine site-specific soil erosion from colluvial deposits, and (iii) assess the composition of woodland from on- and offsite charcoal finds. The earliest indicators of human activities from the Younger Neolithic (late 5th to early 4th millennium B.C.E.) come from colluvial deposits. Our investigations, for the first time, show Middle to Late Bronze Age (ca. 1400–800 B.C.E.), permanent rural settlement in a German central upland region, with a peak in the Late Bronze Age. Due to the varying thicknesses of Bronze Age colluvial deposits, we assume land use practices to have triggered soil erosion. From the spectrum of wood species, Maloideae, ash, and birch are regarded as successional indicators after fire clearance in that period. Settlement continued until the 5th century B.C.E. After a hiatus of 500 years, it re-flourished in the Late Roman and Migration periods (mid-3rd–5th century C.E.) and went on in the Medieval period.