Palaeogeography of an 'Ubaid archaeological site, Saudi Arabia

Palaeogeographic analysis and radiocarbon dating indicate that sometime in the second half of the fifth millennium BC a sea-level rise occurred along the coast of the western side of the Arabian (Persian) Gulf. Cultural remains of the'Ubaid archaeological period are intimately associated with the event and the palaeogeographic environment that accompanied it. The sea-level rise appears to have had a catastrophic effect on habitation sites.     

Late Paleolithic and Mesolithic Coastlines of Greece and the Aegean

Abstract

Reconstructions of the late Quaternary paleogeography of Greece and the Aegean show that at 18,000 years B.P. the northern Aegean and northern Adriatic formed large coastal plains traversed by many rivers. Broad plains also existed off the coast of Elis and the present Gulf of Korinth, and along the Anatolian coast. Many islands, such as Kerkira, Euboea, and the northern Sporadhes, were connected with the mainland, and most of the Cycladic islands were joined together in a Cycladic semi-peninsula. The post-glacial rise of sea level beginning ca. 15,000 B.P. restored around 9,000 B.P. the coastal geography to approximately its present configuration. The late Quaternary paleogeography and its subsequent changes have many archeological implications that are worth serious consideration. The well-watered northern coastal plains may have furnished subsistence for a plains population quite independent of the resources of the northern mountain regions, and they constituted easy access to the Greek peninsula from the NE and NW. Loss of coastal plain land during the post-glacial rise of sea level drastically changed the resource base in many areas. The island of Melos, known source of obsidian for toolmaking since at least 10,000 B.P., may have been discovered considerably earlier when access to the island was largely over land.     

The Locus of Carthage: Compounding Geographical Logic

North Africa’s Phoenician city of Carthage was above all a logical place from which the well-informed maritime Phoenicians colonized and controlled the Western Mediterranean. The leading important factors affecting the founding of Carthage were mostly geographical: overall centrality along the southern coast of the Western Mediterranean; proximity to the island bridge of Italy via Sicily; nascent oceanographic knowledge of water currents and wind gyres as well as shoals such as the Gulf of Sidra and the shelter of the Gulf of Tunis itself; and important local topography and religious landmarks.     

A Strategic Framework for Monitoring Coastal Change in Australia's Wet-dry Tropics – Concepts and Progress

A strategic framework for monitoring natural and human-induced change in the coastal plains of the Alligator Rivers Region in the wet-dry tropics of northern Australia is presented. The framework also supports refinement of methods used to monitor the vulnerability of coastal areas to change, including human-induced climate change and sea-level rise. The information derived through the framework can be used to assess scenarios, highlight the potential significance and implications of changes, and assist land managers formulate management responses. The framework incorporates several large-scale studies for monitoring atmospheric and hydrodynamic processes as well as mapping and monitoring projects specific to environmental change in the freshwater wetlands and the floodplains of the Region. Monitoring is proposed to address processes influencing the stability and rate of change of the floodplain environments. These include large-scale processes, such as inter-annual variability in weather conditions affecting the morphology of the coastal plains, shoreline and riverbank stabilisation, headward expansion of tidal creeks, and salinisation of freshwater basins. Information management is also addressed, and a Geographic Information System structure proposed for effective data collation, analysis and management. The information management system will facilitate data sharing and participation of multiple agencies and organisations interested in coastal change, especially where a landscape perspective or whole ecosystem approach is advocated.     

Geochemical impacts to prehistoric iron-rich siliceous artifacts in the nearshore coastal zone

In the Middle Atlantic region of the United States, landscapes drowned by sea level rise contain scores of prehistoric archaeological sites. These sites provide archaeologists with a rare opportunity to investigate various geologic processes. During the transition from a terrestrial to an offshore setting, the materials associated with an archaeological site are exposed to a series of geochemical processes inherent to the formation of tidal marsh. The duration of the geochemical exposure to tidal marsh is largely dependent on the rate of marine transgression. Here we describe the stages associated with the sulfidization and sulfuricization scheme and the impact to iron-rich lithic artifacts from naturally drowned archaeological sites. Sulfidization and sulfuricization should also impact buried archaeological materials as a result of anthropogenic dredge spoil dumping and the creation of man-made tidal marshes along modern coastlines. Our results indicate that the surfaces of an iron-rich artifact, as well as its interior are visually and geochemically altered by prolonged exposure to the anaerobic conditions of a tidal marsh. Not only should researchers be cautious about making lithic material identification on artifacts found within coastal tidal marsh areas, but museum curators should be aware of the damaging impact of long-term aerobic storage. The geochemical tidal marsh scheme that has altered or corroded iron-rich lithic artifacts in the nearshore zone is an expression of a process that has impacted numerous earlier prehistoric sites currently located on the continental shelf or beneath the coastal estuaries around the world.     

DEVELOPMENT OF THE CASPIAN SHORELINE UNDER THE PRESENT INCREASE IN ITS LEVEL

The authors, questioning the implications for the Caspian of a conventional model of shoreline dynamics on a flat, sandy coast upon a rise in sea level, present the findings of field observations made along the Dagestan shore during the period (post-1977) of the recent rise of the Caspian Sea level. They argue that changes in coastal morphology have varied largely according to the steepness of the offshore slope and, in general, sharply accelerated erosion was observed only on more steeply sloping sections of coast and in areas previously protected by rock benches (translated by Jay K. Mitchell; PlanEcon, Inc.; Washington, DC 20005).     

Improving Coastal Vulnerability Assessment Methodologies for Integrated Coastal Zone Management: an Approach from South Australia

The global concern about human-induced climatic change and its potential effect on sea-level has dominated the debate on coastal vulnerability, particularly since a common assessment methodology was developed by the Intergovernmental Panel on Climate Change in 1991. There have been numerous attempts to use or adapt this methodology but the focus has remained on sea-level rise as the single most important issue for coastal vulnerability. This paper presents a revised and more holistic coastal vulnerability assessment methodology which incorporates spatial and temporal scales relevant to the predicted impacts of climatic change and current human-induced hazards. Three studies in contrasting coastal environments of South Australia demonstrate that there are significant regional variations in sea-level response, human-induced hazards and local planning issues and that these may present a greater immediate threat than the possibility of sea-level rise.     

Refining Broad-Scale Vulnerability Assessment of Coastal Archaeological Resources,Lough Foyle,Northern Ireland

Increasing evidence indicates that ongoing and future climate change impacts, such as enhanced coastal erosion driven by intensified storms and sea-level rise, will be destructive or problematic for coastal archaeological heritage. Approaches to this problem range from broad-scale GIS-based vulnerability assessments to site-scale monitoring and survey. In all cases, the approach chosen should be based on the best-available data on the local historic environment and pattern of coastal change. Therefore, this paper will demonstrate how such data can be successively acquired and enhanced using an integrated approach that builds on and refines a previously conducted broad-scale vulnerability assessment. This approach was adopted in the study region (Northern Ireland) owing to a lack of coherent and up-to-date information on shoreline change. This approach incorporated the GIS-based Digital Shoreline Analysis System (DSAS) to quantify and analyze local shoreline change. DSAS is a software extension for ESRI ArcGIS which allows calculation of rate-of-change statistics using past shorelines identified from georeferenced historic maps and vertical aerial imagery. Additionally, a field survey was conducted to assess the condition of recorded sites, and identify unrecorded ones. Results revealed a more complex pattern of shoreline change in the study area (Magilligan Foreland, Lough Foyle) than previously anticipated, with zones of significant erosion interspersed with areas of stability or advance. Fifty-one new sites ranging from the prehistoric period to the Second World War were also identified. The new information was used to develop a priority classification based on site significance, condition and risk level which improved significantly on the uniform classification of the original broad-scale assessment.     

The Mesolithic Maritime Landscape on the North Coast of Ireland

A combination of reconstruction of the former coastline and field survey of previously unrecorded sites provides the basis for the study of the maritime landscape and maritime activities around Portrush on the north coast of Ireland during the Mesolithic period. Movements in relative sea‐level and geological events indicate significant change in environment and availability of resources, particularly flint, for the coastal community. Evidence suggests that most Early Mesolithic material, deposited close to the then shoreline, is presently under water. Remnants of the Late Mesolithic are fast disappearing as coastal erosion continues. © 2010 The Author     

SHEEPSHEAD COUNTRY: COASTAL WOODLAND SUBSISTENCE FROM THE PERSPECTIVE OF MACK BAYOU AND OTHER NORTHWEST FLORIDA SITES

Abstract

Zooarchaeological analysis of faunal remains from the Mack Bayou site produced new data related to coastal Woodland subsistence on the northern Gulf Coast of Florida. When the Mack Bayou data are compared with data from other Woodland sites on the northern Gulf Coast, a strong pattern of estuarine and shallow coastal waters utilization is evident, with notable but fairly minor site by site variation. It is also evident from these data that sheepshead (Archosargus probatocephalus) are a consistently important dietary component across the northern Gulf Coast, particularly on coastal sites in the Panhandle region of northwestern Florida.     

MEASURING THE IMPACT OF SEA‐LEVEL RISE ON COASTAL REAL ESTATE: A HEDONIC PROPERTY MODEL APPROACH*

ABSTRACT This study estimates the impact of sea‐level rise on coastal real estate in North Carolina using a unique integration of geospatial and hedonic property data. With rates of sea‐level rise approximately double the global average, North Carolina has one of the most vulnerable coastlines in the United States. A range of modest sea‐level rise scenarios based on the IPCC Fourth Assessment Report projections (2007) are considered for four counties of North Carolina—New Hanover, Dare, Carteret, and Bertie—which represent a cross‐section of the state's coastline in geographical distribution and economic development. High‐resolution topographic LIDAR (light detection and ranging) data are used to provide accurate inundation maps for the properties that will be at risk under six different sea‐level rise scenarios. A simulation approach based on spatial hedonic models is used to provide consistent estimates of the property value losses. Considering just four coastal counties in North Carolina, the value of residential property loss without discounting in 2030 (2080) is estimated to be about $179 ($526) million for the mid‐range sea‐level rise scenarios. Low‐lying and heavily developed areas in the northern coastline are comparatively more vulnerable to the effect of sea‐level rise than the other areas.     

A Feasibility Study for the Investigation of Submerged Sites along the Coast of Slovenia

Maritime investigations along the Northern Adriatic coast have traditionally focused on the Roman and later archaeology. However, studies of post-glacial sea-level change and shoreline displacement suggest there is significant potential for the discovery of sites close inshore dating back to the early- to mid-Holocene, c .9000 BC onwards. A feasibility study for the investigation of submerged sites along the coast of Slovenia was undertaken in 2005. Here we describe the project rationale and research design, the survey and recording methods used, the logistical problems encountered, the results obtained (regardless of age), and the prospects for future research in the region.
© 2009 The Authors     

Selling surf and turf: throwntogetherness and real estate advertising on the suburbanising east Australian coastline

New residential development is transforming coastal places in Australia. This paper untangles perceptions of coastal change by analysing representations of nature and lifestyles in marketing new residential developments on the New South Wales (NSW) coastline. We focus specifically on master-planned estates (MPEs). In this context MPEs are primarily a consequence of housing affordability and supply dilemmas in capital cities. Their form and character is derided as ‘suburbanisation by the sea’: vandalism of ‘authentic’ coastal cultures. We draw on Massey’s theorisation of place as ‘event’ and a relational politics termed ‘throwntogetherness’ to understand the role of real estate advertising in blending coastal places and MPEs. Our insights are drawn from visits to 19 MPEs for sale on the NSW coast, and discourse analysis of 76 advertisements collected in situ (billboards, signs, banners and brochures). Advertising narratives for new MPEs both sustain and contradict the idea of coastal suburbanisation: portraying permanent settlement by young families as a culture shift and implicating ‘sea change’ configurations of coastal places to do so. This makes lifestyle expectations with coastal nature perplexing. In the throwntogetherness of contemporary coastlines, marked by landscape change and development pressures, real estate advertisements are pivotal in establishing, grounding and guiding change.     

Coastal Feasts: A Pleistocene Antiquity for Resource Abundance in the Maritime Deserts of North West Australia?

ABSTRACT

Located on the edge of Australia's North West continental shelf, Barrow Island is uniquely located to address a number of research questions, such as the antiquity and changing nature of Indigenous occupation, including shifting uses of regional economic resources in response to post-glacial sea-level rise. These questions are addressed from a range of archaeological, zooarchaeological, and geoarchaeological disciplines. Although only preliminary, results to date indicate the presence of marine resources dating to before sea-level stabilization (～ 7.5 ka) that contain both dietary and utilitarian species, including high-ranked species such as sea turtle. The marine assemblages reflect a variety of habitats and substrates with a 17,000-year record for the presence of a former tidal marsh or estuary. We also note recently obtained ¹⁴C and OSL dates that extend the dietary marine faunas and initial occupation to well before 41 ka. This demonstrates that consumption of coastal resources began prior to the Holocene, when we begin to observe more widespread evidence of marine resource exploitation in the broader Canarvon Bioregion of northwest Australia. This evidence supports arguments for further research to directly test both the productivity of, and human reliance on, marine habitats from initial occupation.     

Metal Use and Production among Coastal Societies of the Atacama Desert*

In this paper, we focus on the study of metal objects associated with populations living on the northern coast of Chile in the Late Intermediate and Late periods (c. ad 1000–1550). Our contribution is based on morphometric and physico‐chemical (ICP–AES, PIXE and metallographic sections) analyses of the quintessential coastal metal object: the fish‐hook. This study is part of a broader investigation that seeks to understand the organization of mining – metallurgical production systems and their relation with coastal economies and ways of life. We distinguish at least two different traditions, one associated with the Western Valleys area and one with the Arid Desert Coast. These findings expand our understanding of Andean metal making. Furthermore, the presence of a metallurgical tradition within the highly mobile hunter–gatherers of the most arid coast of South America is of great anthropological significance.     

铁路与1912～1937年间的豫北工矿业发展

民国初期,铁路在华北兴起并形成网络之后,加速了华北内陆与沿海通商口岸经贸交流的进程,推动了内陆经济由传统向现代的转型。由此,豫北的工矿业发生了极富时代特色的变动。由于自然经济依然存在,这一转变过程表现出很强的多样性和复杂性。因此,通过对豫北近代工矿业发展的具体考察,揭示了华北内陆区域经济由传统向现代演变的主要特征及一般规律。     

Discoveries of Neolithic prehistoric sites at Pleistocene carbonate rock shelters on the east coast of the UAE

Three newly discovered prehistoric sites on the east coast of the United Emirates (UAE) are described. All are located on surfaces of Pleistocene carbonates or rock shelters that are generally rare along the eastern coast of the Gulf of Oman. Aqqah 1 (Le Meridien al Aqqah Beach Resort), the most important and best preserved of these sites, is a partially collapsed rock shelter with an exposed section, lithic finds and marine molluscs. Deriving an exact date from the material present is difficult because of a lack of comparanda. A bifacial fletched arrowhead made of yellow jasper and the lithic debris of five different raw materials as well as an undecorated ceramic fragment might suggest a date in the Late Neolithic or Early Bronze Age. The presence of many marine bivalves and snails with operculae, which differ from recent coastal species, indicates the collection and consumption of living molluscs by the prehistoric population of Aqqah. Nearby burials may be related to the rock shelters.     

The dynamics of mangrove ecosystems,changes in sea level and the strategies of Neolithic settlements along the coast of Oman (6000–3000 cal. BC)

This paper focus on the Holocene palaeogeography of the Ja'alan coast from the 6th to the 4th millennium cal. BC, integrating the dynamics of mangroves, lagoons, khors-estuaries and deltas, with sea-level change and the evidence from Neolithic shell middens. The distribution and maturation of mangrove ecosystems along the Arabian coasts has varied considerably, affected by physical forces such as sea-level changes, climate, tidal amplitude and duration as well as the quantity of fresh water inflow associated with the monsoon systems along the Arabian coast. Palaeo-mangroves and lagoons, today replaced by large sabkhas, appear to be correlated to mid-Holocene fossil deltas and estuaries that currently function episodically, depending on the rhythm of winter rains. All these parameters have determined and impacted the location of settlement networks and the economic strategies of the first Arabian farmers along the eastern Arabian coast. The mid-Holocene sea-level highstand stability (5th millennium BC) can be considered to be an optimum period for mangrove development and can be correlated with Neolithic sites around the mangroves. The decline of mangroves since 3000/2500 cal. BC and further degradation is mainly attributed to the prevailing arid climate that reduced summer monsoon effects in the tropical area by favouring the extension of sabkhas. We discuss these aspects based on new archaeological surveys, excavations and geoarchaeological studies.     

Gorad Beuno: investigation of an ancient fish-trap in Caernarfon Bay, N. Wales

Aerial reconnaissance in 1989 revealed a semicircular structure lying just off the coast at Clynnog Fawr in Caernarfon Bay, North Wales. The similarity in shape of the structure to other coastal fish-traps in the area promoted further study. Several avenues of research were followed. Historical sources were scrutinized in an attempt to find a date for the construction of the structure. A hydrographic survey was used to obtain the exact position and shape of the anomaly. A survey of the cliff and beach directly inland of the site was also made.
The anomaly was seen to lie further out to sea today than would have been the case at the time of its construction, indicating an area of coastal erosion. In an attempt to understand this process, the marine and atmospheric forces acting on the area were examined. In association with the processes of coastal erosion, soil tests were undertaken to assess the nature of the material being eroded.
Using both historical and physiological evidence it was concluded that the anomaly was indeed a fish-trap, constructed at about the beginning of the 13th century. The results from the different avenues of study have shown a sea-level rise of about 2.84 m and a cliff recession of about 118 m since its construction.