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From 300 BC to AD 300, the city of Pergamon underwent a profound transformation that impacted the rural settlement patterns and the concomitant geomorphodynamics. We present a geoarchaeological study in a long-term settled catchment in the Pergamon micro-region to disentangle the Holocene geomorphodynamics and triggering factors, for example, climate change and human activity. The analyses of eight radiocarbon-dated sediment profiles from the Tekkedere alluvial fan and its catchment indicate four principal sedimentation phases. Phase 1 (ca. 6.2 to 5–4 ka) is dominated by the floodplain aggradation of the receiving Bakırçay River, which is followed by the formation of floodplain soils (phase 2). Substantial geomorphodynamic changes occurred around 4 ka (phase 3), when the edge of the floodplain was buried by fan sediments of the tributary Tekkedere creek. This is attributed to supraregional aridization and rapid climate change events, superimposed by the onset of local human activities. Repeated cycles of coarse- and fine-textured fan sediments with age inversions after ca. 3.8 ka and valley infills younger than 1300 yr BP indicate the strong erosion and redeposition of sediments in phase 4. These increased geomorphodynamics may coincide with the changing settlement pattern and thus reflect human–environment interactions.

This study presents a meta‐analysis of radiocarbon ages for the environs of Göbekli Tepe – one of the oldest monumental structures worldwide – using cumulative probability functions to diachronically assess phases of geomorphodynamic activity as controlled by natural or anthropogenic drivers. We employ sediment cascades as a heuristic framework to study the complex responses of the geomorphological system to various triggers at local to supra‐regional scales. Possible triggers include climatic variability as documented by supra‐regional hydroclimatic proxy data, regional demographic trends, and local to regional socioeconomic developments such as the emergence of sedentism or the introduction and dispersal of livestock herding. Our results show that phases of intensified geomorphodynamic activity occurred between ca. 7.4–7.0 and 5.8–3.3 ka BP. These phases roughly coincide with phases of population growth in southern Turkey and climatic variations in Turkey and the Levant. The phase between ca. 5.8–3.3 ka BP also corresponds to the time when organized agriculture and the seeder plough were introduced. Also, the identified phases are in agreement with the general trend of varying geomorphodynamic activity in the Eastern Mediterranean as driven by human impact and climatic change. However, neither the Younger Dryas–Holocene transition nor the development of herding during the Pre‐Pottery Neolithic left a clear signature. We demonstrate how the different depositional environments in the studied landscape compartments vary with respect to their spatiotemporal coverage and discuss challenges when trying to understand processes that once shaped landscapes of past societies. © 2020 The Authors. Earth Surface Processes and Landforms published by John Wiley & Sons Ltd, Geomorphodynamic activity in the surroundings of the Early Neolithic hilltop site Göbekli Tepe is significantly intensified between ca. 7.4–7.0 and 5.8–3.3 ka BP, reflecting demographic, sociocultural, and climatic variations. The studied landscape compartments form a sediment cascade whose different depositional environments vary with respect to their spatiotemporal coverage. Preservation of colluvial deposits in upland catchments represents a key challenge when studying ancient hilltop sites such as Göbekli Tepe in semi‐arid environments like southeastern Anatolia.

This study introduces an easy-to-apply approach to studying historic landscape development and tillage-induced wind-driven soil erosion of a loess-like sediment. It discusses the implications of these processes for the preservation of cultural remains in the environs of the largest known European ground monument – Cornesti-Iarcuri. This Late Bronze Age enclosure is located in the loess-covered, undulating plains of western Romania and consists of four earth-filled wooden ramparts. Interpretation of historic and modern maps is combined with the study of written sources to qualitatively record historic landscape development. It is shown that major changes in the natural environment, including the intensification of arable farming and the regular establishment of straight field paths, occurred in the study area between c. 1770 and c. 1865. The amount of surface lowering due to wind-driven soil erosion is estimated using a combination of systematic feature extraction from the historic and modern maps, high resolution modeling of the topography based on LiDAR data, subsurface compaction measurements and grain size analyses. The surface lowering on the arable fields of the high plain since c. 1865 totals between 10 and 40 cm. This, together with the actual plowing depth of c. 30 cm, implies that archaeological structures must have penetrated the subsurface to between 40 and 70 cm in order to be preserved in the present-day subsurface. Thus, this study shows that a considerable portion of the cultural heritage has presumably been lost. Moreover, the still intact lower-lying stratigraphy is threatened by the destructive impact of plowing that successively reaches greater depths due to ongoing tillage-induced wind-driven soil erosion on the arable fields. However, bioturbation causing distortion of the systemic context of the cultural remains cannot be excluded, as Luvic Phaeozems and Luvic Chernozems prevail in the study area.

This study traces the geomorphological development in the environs of the Pre-Pottery Neolithic site Gobekli Tepe by means of radiocarbon dated sediment profiles from its close vicinity. Based on facies interpretation we identify different depositional environments and discuss the involved process dynamics. Our results show that the sediments from the foot slopes are characterized by soil creep and slope wash. Further downstream, in the proximal piedmont zone, fluvial deposition prevails forming a channel and an overbank facies. The sediments at the foot slopes were mainly deposited during Roman and Byzantine times, while those from the proximal piedmont zone cover the period from the Bronze Age to the Roman times. Phases of geomorphological activity and stability can be distinguished in the course of the later Holocene, where organic rich topsoils were buried at c. 4750, 4200, and 3650 cal. a BP documenting phases of landscape stability followed by enhanced geomorphodynamics. These phases fall into the Bronze Age in Anatolia and coincide with an increasing population, pronounced human impact, and climatic aridization that occurred in Turkey around 5.3–4.1 ka BP. Our findings provide among the first insights into the environmental development including the involved process dynamics in the vicinity of the UNESCO World Heritage site of Gobekli Tepe during the later Holocene, also allowing to further develop hypotheses for the period of its occupation.

The presented study combines data from geomorphological, geochemical, sedimentological, chronometric, and archaeological records providing first insights into the Holocene landscape development in the environs of the Late Bronze Age fortification enclosure Cornesti-Iarcuri. This large-scale archaeological site is located in a loess-covered, undulating landscape at the eastern edge of the Great Hungarian Plain, in western Romania. Sediment archives from geomorphologically different locations, closely related to the Copper Age to Late Bronze Age settlements, are presented. Mainly stable geomorphic conditions throughout the Holocene occurred on the high plains of the Vinga Plain as indicated by chemical alteration of the loss deposits and soil formation processes exceeding 2 m. In contrast, two cores from an alluvial fan of a minor drainage system in direct vicinity of the archaeological site document varying morphodynamics throughout the Holocene. Phases of geomorphic activity and stability are indicated by the formation of fan deposits and paleosols developed in these sediments. 14 C dates from charcoal extracted from the fan sediments show maximum deposition ages between c. 4400 cal. BP and c. 2900 cal. BP. Thus, the formation of the charcoal coincides with the Copper Age to Late Bronze Age development of the settlement sites. Daub pieces, incorporated into these reworked soil sediments, provide evidence for human activities in the catchment. This, in turn, may indicate that the erosion processes that led to the fan formation are linked to those activities. However, reworking and redeposition of the charcoal and daub bearing sediments due to retrogressive erosion during the last millennia cannot be excluded.

Late Holocene landscape evolution in the Geyikli basin, a sub-catchment of the Bakircay basin on the West Anatolian Coast, and its implications for the plaeogeography of the environs of ancient Pergamon (modern Bergama), were studied by a combination of archaeological and geographical investigations. The study aims to investigate whether the “Dorpfeld Scenario” of the paleogeographical situation in the Lower Bakircay Valley is true or not. The scenario postulates that during the Late Holocene, an alluvial fan, fed from the Geyikli valley, progressively closed a topographical constriction between the Aegean Sea and a supposed paleo-gulf that occupied the Lower Bakircay Valley. Initially, this caused the development of an inland lake, and finally the shift of the mouth of the Paleo-Bakircay from a northern position to its modern southern position. The lithostratigraphy of four sediment outcrops in the Lower Geyikli Basin and in the topographical constriction between the Aegean Coastal Plain and the Bakircay Valley shows that during the past ca. 1950 years, the Lower Geyikli Valley was inhabited by a braided river with a highly dynamic depositional system. Sedimentation totalled about 4–6 m in the past 1950 years, indicating a “drowning” of the landscape in terrestrial sediments. In recent times, gravel mining has led to a deformation of the valley floor, and the Geyikli's fluvial terrace has become inactive. The lack of any sediment related to a Paleo-Gulf or a Paleo-Lake inside the Bakircay Basin, as well as the lack of any sediments of a northern Paleo-Bakircay, documents that the “Dorpfeld Scenario” does not apply for the past 1950 years. Archaeological findings show that the Geyikli Basin was intensively settled in historic times, but there is no evidence that the Geyikli Basin was anthropogenically deformed in a way that could have contributed to the “Dorpfeld Scenario”.

Corneşti-Iarcuri is the largest known fortification enclosure of prehistoric Europe. The site is located in the Romanian Banat, at the southeastern edge of the Mureş alluvial fan (Fig. 1). Four earth filled wooden ramparts with a total length of about 33 km enclose an area of more than 17.2 km². Even today, after centuries of intensive arable farming, these walls represent significant obstacles in the undulating landscape of the Vinga plain. Radiocarbon dates, most recently achieved by ongoing archaeological research date the construction to the Late Bronze Age (Szentmiklosi et al. 2011, Heeb et al. 2008, Micle et al. 2009). The Mureş alluvial fan started to develop in the Pliocene and with its extent of about 10.000 km² it is one of the most extensive landscape features of the eastern Pannonian Basin (Urdea et al. 2012). Extensive parts of the fan are covered with Quaternary loess and loess-like deposits. Thick chernozem or chernozem-like soils have developed in these sediments (Borsy 1990).