Determination of the Applicability of High-Resolution X-Band Satellite Radar for the Archaeological Prospection by a Comparison with a Ground-Based Survey

It was not until the launch of TerraSAR-X in 2007 that satellite radar became high-resolution enough for archaeological prospection. All former sensors had a resolution of several metres, which is far too low to resolve faint archaeological features. TerraSAR-X now provides images of around 1 m resolution. Unfortunately, the frequency of the satellite is X-band and therefore very high. Until now, common opinion in the remote sensing community has been that these radar waves have no depth Penetration into the soil. However, the comparison of a TerraSAR-X image over a Roman fortress in Syria with the corresponding depth slices of ground-penetrating radar show that there should be a penetration depth of a few decimetres in desert soil

Neolithic settlement sites in Western Turkey - palaeogeographic studies at cukurici Hoyuk and Arvalya Hoyuk

Cukurici Hoyuk and Arvalya Hoyuk are two prehistoric settlement mounds (tells) located in parallel striking valleys in the environs of Ephesus, W Turkey. They were studied with geoarchaeological methods in order to reconstruct their environmental setting, areal extension and distinct settlement phases, as well as the vegetation history. Both tells are situated on small ridges flanked by rivers and their alluvial plains which were suitable for cultivation. The Neolithic coastline was located at a distance of c. 15-2 km to the north. Cukurici Hoyuk covers an area of c. 200 m x 100 m; its strata have a total thickness of at least 8.50 m. The oldest remains, dating from the 7th millennium BC, represent an advanced Neolithic culture closely linked to the sea. The oldest foundations reveal that the site was intentionally chosen on the ridge within the still naturally wooded vegetated landscape. Other than Cukurici Hoyuk, Arvalya Hoyuk has not yet been excavated. However, geophysical measurements and corings revealed that it covers an area of c. 100 m x 60 m, and that it is constructed of several settlement layers with a total thickness of at least 3.50 m. Radar and geomagnetic images show building structures including fireplaces and pits, surrounded by a rampart-ditch construction as a potential enclosure. (C) 2015 Elsevier Ltd. All rights reserved

Late Holocene coastline and landscape changes to the west of Ephesus, Turkey

Palaeogeographical research regarding coastline and landscape changes has been conducted in the Kucuk Menderes graben and the environs of the ancient city of Ephesus in Western Turkey for a few decades. Based on geophysical data, multi-proxy and microfaunal analyses of sediment cores, 14C-AMS age estimates and diagnostic ceramics, this study presents for the first time results of an area close to the present coastline, where a Byzantine church is located on top of a small hill. The results reveal that this mica schist hill turned into an island during the 2nd/1st millennium BCE. It was reconnected to the mainland via a tombolo during the 5th century CE. Drill cores and geophysical measurements surrounding the hill show massive stone layers which were deposited intentionally during the 5th/6th century CE when the Byzantine church was built. Geophysical images point to wall structures in the surroundings of the hill. The area to the northeast hosts a small harbour site. When the coastline continued to shift further to the west, this site was still connected to the sea by the Kucuk Menderes river. (C) 2017 Elsevier Ltd and INQUA. All rights reserved

Syn‐ and post‐eruptive gully formation near the Laacher See volcano

The Laacher See volcano (LSV) is located at the western margin of the Neuwied Basin, the central part of the Middle Rhine Basin of Germany. Its paroxysmal Plinian eruption c. 13 ka ago (Laacher See event; LSE) deposited a complex tephra sequence in the Neuwied Basin, whilst the distal ashes became one of the most important chronostratigraphic markers in Central Europe. However, some other impacts on landscape formation have thus far been largely neglected, such as buried gully structures in the proximity of the LSV. In this contribution, we map and discuss the spatial extent of these landforms at the site Lungenkärchen c. 4 km south of the LSV based on geophysical prospection as well as contrasting pedo‐sedimentary characteristics of the gully infill (particle‐size distribution, bulk‐sediment density, thin‐section analysis, saturated hydraulic conductivity) and the surrounding soils and tephra layers. These data are combined with a luminescence‐ and carbon‐14 (14C)‐based age model that relates them to the LSE. It is demonstrated how these gullies seem to have been formed and rapidly infilled by rainfall and surface discharge both during and subsequent to the eruptive phase, with modern analog processes documented for the 1980 Mount St Helens eruption (Washington State, USA). Given the density of the gullies at the site and their deviating pedo‐sedimentary properties compared to the surrounding soils, we propose a significant influence on agricultural production in the proximity of the LSV, which remains to be tested in future studies. Finally, in contrast, gullies of similar lateral and vertical dimensions identified in post‐LSE reworked loess and tephra deposits of the Wingertsbergwand (close to the main study site and proximal to the LSV) have shown to be unrelated to the LSE and can either be attributed to periglacial processes at the Younger Dryas‐Preboreal transition or to linear incision during the early Holocene.Linear subsurface gullies were identified close to the Laacher See volcano in magnetometer and ground‐penetrating radar prospection. Optically stimulated luminescence data indicate they incised during or shortly after the Laacher See event 13 ka ago. Pedo‐sedimentary characteristics of the gully infill differs from the surrounding regosols and brown earths, possibly influencing regional agricultural land use. imageUniversity of Cologne http://dx.doi.org/10.13039/501100008001Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/50110000165

Syn- and post-eruptive gully formation near the Laacher See volcano

The Laacher See volcano (LSV) is located at the western margin of the Neuwied Basin, the central part of the Middle Rhine Basin of Germany. Its paroxysmal Plinian eruption c. 13 ka ago (Laacher See event; LSE) deposited a complex tephra sequence in the Neuwied Basin, whilst the distal ashes became one of the most important chronostratigraphic markers in Central Europe. However, some other impacts on landscape formation have thus far been largely neglected, such as buried gully structures in the proximity of the LSV. In this contribution, we map and discuss the spatial extent of these landforms at the site Lungenkarchen c. 4 km south of the LSV based on geophysical prospection as well as contrasting pedo-sedimentary characteristics of the gully infill (particle-size distribution, bulk-sediment density, thin-section analysis, saturated hydraulic conductivity) and the surrounding soils and tephra layers. These data are combined with a luminescence- and carbon-14 (C-14)-based age model that relates them to the LSE. It is demonstrated how these gullies seem to have been formed and rapidly infilled by rainfall and surface discharge both during and subsequent to the eruptive phase, with modern analog processes documented for the 1980 Mount St Helens eruption (Washington State, USA). Given the density of the gullies at the site and their deviating pedo-sedimentary properties compared to the surrounding soils, we propose a significant influence on agricultural production in the proximity of the LSV, which remains to be tested in future studies. Finally, in contrast, gullies of similar lateral and vertical dimensions identified in post-LSE reworked loess and tephra deposits of the Wingertsbergwand (close to the main study site and proximal to the LSV) have shown to be unrelated to the LSE and can either be attributed to periglacial processes at the Younger Dryas-Preboreal transition or to linear incision during the early Holocene