Oren Ackermann

Archaeological horizons and fluvial processes at the Lower Paleolithic open-air site of Revadim (Israel)

In this paper we present new data pertaining to the paleo-landscape characteristics at the Acheulian site of Revadim, on the southern coastal plain of Israel. Sedimentological, isotopic, granulometric and micromorphological studies showed that the archaeological remains accumulated in an active fluvial environment where channel action, overbank flooding and episodic inundation occurred. Measurements of total organic matter and its carbon isotopic composition indicate that the hominin activity at the site started at a period of relatively drier conditions, which coincided with erosion of the preceding soil sequence. This process led to the formation of a gently-undulating topography, as reconstructed by a GIS model. Later deposition documents relatively wetter conditions, as indicated by carbon isotopic composition. Formation processes identified at the site include fluvial processes, inundation episodes that resulted in anaerobic conditions and formation of oxide nodules, as well as small-scale bioturbation and later infiltration of carbonate-rich solutions that resulted in the formation of calcite nodules and crusts. The combination of micro-habitats created favorable conditions that repeatedly drew hominins to the area, as seen by a series of super-imposed archaeological horizons. This study shows that site-specific paleo-landscape reconstructions should play an important role in understanding regional variation among hominin occupations and in extrapolating long-term behavioral patterns during the Middle Pleistocene.

Landscape Archaeology in a Dry-Stream Valley near Tell es-Sâfì/Gath (Israel): Agricultural Terraces and the Origin of Fill Deposits

Abstract As part of the long-term archaeological project being conducted at Tell e-Sâfi/Gath in the semi-arid foothills of the Judean Mountains, a first order dry stream channel located in a valley east of the main site was surveyed and soil pits excavated in selected locations. A ditch, 10 m in length, was dug perpendicular to one of the agricultural terraces, showing that the small valley is filled with soil to a depth of more than 3 m above bedrock. The fill dates mainly to the Byzantine period (ca. 4th-7th cent. CE), according to the ceramic sherds. Three check-dam walls and related terraces were found across the width of the valley. Surprisingly, the base of the check-dam does not go deeper than 50 em into the uppermost part of the fill, well above bedrock or gravel layers, while covering only the upper part of the terrace step. Thus we use the term “floating terrace wall” or “floating check-dams”. Each of the terrace walls is about 0.5 m high and 50 m long. The valley is bound by two slopes: (1) a northeast facing slope characterized by Nari outcrops (a hard calcrete crust in the upper part of the chalk bedrock) and soil pockets, and (2) a southwest facing slope without Nari. The source of most valley fill material is apparently from the slope without Nari. The valley shows comparatively little accumulation during the Iron Age and very much accumulation during the Byzantine period. The main cause seems to be human-made earth movement and terrace building during the Byzantine period, rather than passive erosion and accumulation as a result of general environmental pressure by human activity.

The birth, life and death of an Iron Age house at Tel ‘Eton, Israel

Using a biographic-like approach, this article presents the initial results of the study of an elite Iron Age house at Tel ‘Eton, from its conception, through its birth and life, to its death and decomposition. Massive preparations preceded the construction of the house, and the latter incorporated continuous foundations, and quality building materials, including ashlar stones. The building was pre-planned, and some of the original rooms had two doorways leading to them, in order to enable easy future sub-division, without endangering the structures physical integrity. The house evolved over the years, and its inner division changed overtime, reflecting the changes in the life-cycle of the extended family that lived in it. The house was destroyed in heavy conflagration in the late 8th century BC; hundreds of artifacts and complete vessels were unearthed below and within the debris, allowing for a detailed reconstruction of the use of space within the building on the eve of its destruction and the processes that accompanied its destruction (perhaps even ‘execution’), and subsequent collapse.

The Paleo-Anthropocene and the Genesis of the Current Landscape of Israel

Abstract Worldwide, human impact on natural landscapes has intensified since prehistoric times, and this is well documented in the global archaeological record. The period between the earliest hominids and the Industrial Revolution of the late 18-19th centuries is known as the Paleo-Anthropocene. The current study reviews key geoarchaeological, floral and faunal factors of the Paleo-Anthropocene in Israel, an area that has undergone human activities in various intensities since prehistoric times. It discusses significant human imprints on these three features in the Israeli landscape, demonstrating that its current form is almost entirely anthropogenic. Moreover, some of the past physical changes still dynamically shape Israel’s zoological, archaeological and geomorphic landscape today. It is hoped that insights from this article might aid in guiding present-day management strategies of undeveloped areas through renewal of human activity guided by traditional knowledge.

Dust clouds, climate change and coins: consiliences of palaeoclimate and economy in the Late Antique southern Levant

The climate factor has become a focus of much historical and archaeological investigation, encouraged recently by improvements in palaeoclimatic techniques and interest in global climate change. This article examines correlations between climate and history in the Byzantine southern Levant (c. 4th–7th centuries AD). A proposed 5th century economic downturn attested to by numismatic trends is shown to coincide with palaeoclimatic evidence for drought. We suggest a climatic ultimate cause for the apparent economic decline. In addition, the relationship between the Dust Veil Index (DVI) and annual precipitation in Jerusalem suggests the likelihood of increased precipitation following the 536 AD volcanic dust veil. This prediction is borne out by high-resolution precipitation reconstructions from Soreq Cave speleothems and by sedimentation records of extreme flash flooding. These finds complement palaeoclimatic reconstructions from Europe showing a drop in precipitation after 536 AD. Drought in Europe and flooding in the Middle East are both expected outcomes of global cooling during volcanic winters, such as those described in historical accounts of the 530s AD.