沙漠腹地有绿洲

正内蒙古阿拉善左旗的通湖草原被誉为沙漠中的"伊甸园",这里古商道、古驼道、古遗址、古战场、沙漠湖泊、沙漠绿洲、沙漠草原、沙山岩画众多,再加上有不少美丽动人的传说。景区位于内蒙古和宁夏交界处的腾格里沙漠腹地,是古丝绸之路的要塞。     

Working on Rock Art in the Dakhleh Oasis: Some Thoughts on Threats to Petroglyphs and Possibilities of Research in the Western Desert,Egypt

The rock art in Dakhleh, despite being known for more than a century, has been thoroughly investigated only since the late 1980s, and remains far from being well known especially outside of Egypt. At the same time, the consecutive seasons of fieldwork conducted by the Petroglylph Unit (part of the international Dakhleh Oasis Project) have produced a great number of findings and substantially enhanced our knowledge of the petroglyphs of this area. Here, rather than focusing on interpretive aspects of the research, I wish to discuss the threats endangering the petroglyphs in the Oasis. Dakhleh has developed very intensively in the last 100 years. It is, however, the twenty-first century which seems to pose some serious threats to archaeological heritage. Hence, in this paper I wish to report on what has been done so far to document rock art in the Oasis, and try to establish the priorities for potential future work. The agricultural and infrastructural development in the area, and the uncertain political climate in the country, heavily influence the state of rock art preservation and the possibilities of research. The need for documentation and preservation of rock art is larger than ever before, because many changes in the local landscape cannot be stopped. The time is pressing, because more and more rock art is disappearing due to the reasons discussed in this paper. Threats to Egyptian rock art in general will form a background for considerations concerning petroglyphs from the Western Desert.     

Near-surface imaging of a buried foundation in the Western Desert,Egypt, using space-borne and ground penetrating radar

ALOS/PALSAR L-band full polarimetric data have been used to detect and characterize a well-defined geometric target hidden under sand deposits in the Western Desert of Egypt. This buried object is rectangular in shape with very straight boundaries and encloses an area of 500 m². Inside the rectangular area there is a perfectly circular feature of approximately 53 m² area. High and medium resolution optical satellite images (WorldView-2, ALOS/AVNIR-2) and field investigation confirm that the topography of the study area is relatively flat and completely covered by dry sand. The electromagnetic wave scattering behavior of the detected buried object was measured by decomposing the scattering matrix of ALOS/PALSAR full polarimetric data into Entropy-Alpha (H/α) and Freeman and Durden decompositions. Furthermore, a combination of unsupervised classification algorithms and Constant False-Alarm Rate (CFAR) edge detection was performed on the polarimetric data which revealed a well-defined geometric shape with straight borders. These borders have high α angles with low entropy, which physically means double bounce scattering mechanism with low randomness and is very similar to that of an urban scatterer, indicating that the detected target might be a buried wall-like foundation of a man-made structure. Moreover, 28 ground penetrating radar (GPR) profiles were acquired using a 270 MHz shielded antenna to validate the satellite radar remote sensing results. The GPR profiles reveal very clear hyperbolic shapes at 1.5 m depth with one of them showing a large hyperbolic shape-like structure, which might indicate the presence of a buried foundation. Thus the site might have significance to archaeological studies of the Western Desert, particularly previous human occupation and the sources of water for such habitation.     

High Desert Paleolithic Survey at Abydos,Egypt

Abstract

In the winters of 2000 and 2002–2003 we surveyed a portion of the high desert immediately adjacent to the Nile Valley at Abydos, Egypt. The initial field season assessed the area's potential to contribute to the existing database of Paleolithic landscapes. Limited work done prior to our initial survey indicated that such Paleolithic sites in this region, while present, were relatively infrequent. Contrary to this expectation, we found the desert landscape densely littered with Paleolithic artifacts. Our subsequent work documented the extent of the distribution and the nature of Paleolithic artifacts. The goal of this work is to develop models of desert landscape use, particularly during the Middle Paleolithic, which can be integrated into those existing for the Nile Valley. In doing this, we provide a more complete picture of hominid adaptations in a place and time period critical to our understanding of the origins of modern human behaviors.     

Technological organization and sedentism in the Epipalaeolithic of Dakhleh Oasis,Egypt

At Dakhleh Oasis in south-central Egypt, a group of Epipalaeolithic or Masara sites featuring stone-built structures suggests a degree of sedentism that was unusual for the Eastern Sahara in early Holocene times. The paper investigates this apparent increased sedentism by focusing on the organization of lithic technology within the three Masara units defined in the oasis, including that with which the stone structures are associated. Information on three aspects of technological organization — the acquisition of raw material, core reduction sequences, and the portability of the resulting toolkits — when combined with evidence on other artifact categories and on site features and locations, points to a dramatic dichotomy within the Masara between small, highly mobile groups that ranged far beyond the oasis (Masara A), and a more sedentary element (Masara C), consisting of groups confined for at least part of the year to a particularly favoured locale in south-eastern Dakhleh.

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Résumé A l'oasis de Dakhleh, en Egypte Sud-Centrale, un groupe de sites Epipaléolithiques ou Masara a livré des structures en pierre qui suggèrent un degré de sédentarisation peu courant pour l'Est du Sahara au début de l'Holocène. Cet article étudie l'accroissement apparent de la sédentarisation en se concentrant sur l'organisation de la technologie lithique au sein des trois unités Masara définies dans l'oasis, y compris celle associée aux cercles de pierre. L'acquisition de la matière première, les séquences de réduction des nucleus, et le transport des outils qui en résultent sont des informations sur trois aspects de l'organisation technologique qui une fois combinées avec les données obtenues à partir d'autres catégories d'artefacts lithiques, de la configuration et de la situation du site, mettent en évidence une dichotomie très claire au sein du Masara entre des groupes petits et très mobiles qui se déplacaient bien au delà du périmeètre de l'oasis (Masara A) et un elément beaucoup plus sédentaire (Masara C) consistant en des groupes confinés pour au moins une partie de l'année dans un site particulièrement apprécié de la partie sud-est de Dakhleh.

     

Structural preservation of the Temple of the Oracle in Siwa Oasis,Egypt

Abstract

The Oracle of Siwa, in the Libyan Desert, was one of the important cult sites in the classical period. For almost 1000 years the oracle was a place of pilgrimage, famous especially because of the visit of Alexander the Great in 332 BC. The temple itself was dedicated to the Egyptian god Amun and was constructed by Greek architects using alternating courses of solid binders and stretcher courses of massive limestone slabs enclosing a rubble-mortar core. Throughout its 2500-year history the temple complex was used by various groups for different purposes.

Situated near the rim of a hill the temple itself was threatened by continuous erosion of the hill slopes. During the first visit in 1993 it was decided to undertake immediate structural preservation of the critical parts of the building. In 1994 a reversible temporary reinforcement of the northern wall was applied. This was done in order to make future interventions more secure. Early during the damage assessment, the need for an extensive reinforcement of the bedrock was discussed. Before critical interventions took place the site was fully surveyed. Due to the high salt content of the anhydrite mortar and the building stone the interventions were carried out with a minimum of water. In the course of three campaigns in 1997, 1998 and 1999, the northern, the western and the opposite southern walls were reinforced by pre-stressed stainless steel anchors and secured by anchor plates. In 1999 the fissures and cracks of the bedrock were grouted with gunned concrete. The temple should be structurally stable for the next hundred years, but the problems of nonstructural decay of the walls have still to be addressed.     

Rock engravings in the Wadi el-Barramiya,Eastern Desert of Egypt

This paper describes new rock art sites in the region east of Idfu, where at least 50 sites with several thousands of petroglyphs offer huge potential for future research. Site ET-A/WB 4 provides the largest representation of a boat yet discovered in the Eastern Desert; it is part of a scene extending over about 10 m of rock with boats, animals and human figures in procession. This scene and another one from site ET-A/WB 5 can be dated to the transition from the prehistoric to the dynastic periods. All sites in the Wadi el-Barramiya are endangered due to their location near a main road used by construction works and visitors.

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Résumé Dans cet article quelques sites à gravures rupestres récemment découverts dans la région à l'est d'Idfu sont décrits. Une cinquantaine de ces sites avec des milliers de pétroglyphes présentent un potentiel énorme pour les recherches futures. Le site ET-A/WB 4 nous donne la représentation d'un bâteau la plus grande connue jusqu' à présent dans le désert oriental d'Egypte. Cette représentation cependant ne constitue qu'un morceau d'un tableau qui se prolonge sur environ 10 m de la surface rocheuse avec des bâteaux, des animaux et des formes humaines en cortège. Ce tableau ainsi qu'un autre du site ET-A/WB 5 peut être situé chronologiquement à la transition de l'époque préhistorique et l'époque dynastique. Tous les sites du Wadi el-Barramiya sont menacés en raison de leur proximité d'une grande route fréquentée par les touristes et aussi par les travaux publics.

     

Prehistory of the Upper Yenisei area (southern Siberia)

Our understanding of the prehistory of the Upper Yenisei area is based on several key multilayered sites, which provide an excellent opportunity for the investigation of long-term culture change and the reconstruction of culture history. The earliest traces of prehistoric people in the region date to the Sartan glacial. Ui I is dated to ca. 22,000–17,000 B.P. and belongs to the middle phase of the Yenisei Upper Paleolithic, predating the period of the Final Paleolithic Afontova culture (16,000–10,000 B.P.). The Early Holocene period remains little known; there is only one assemblage (the lower cultural layer of Sosnovka Golovan'skaya) which may be attributed to the Epipaleolithic. In the seventh and sixth millennia B.P., the aceramic Early Neolithic (the uppermost cultural horizons of Maina and Ui II, Ust'Khemchik 3, etc.) was widespread and was replaced by the Late Neolithic Verkhneeniseisk culture in the fifth millennium B.P. This was succeeded by the Eneolithic Afanas'eva culture at the end of the fifth millennium B.P. and, later, by the Bronze Age Okunev culture (until the twelfth century B.C.). From the eighth to the second centuries B.C., Scythian cultures flourished in the area, until the invasion of the Huns. All of these stages of the Holocene culture sequence are represented in the stratified site of Toora-Dash.     

Neolithic occupation of an artesian spring: KS043 in the Kharga Oasis,Egypt

Abstract

KS043 is a stratified site associated with a complex of artesian springs. The archaeological remains, as well as a series of radiocarbon determinations, date the site to between 4800 and 4200 b.c. Our study suggests a connection between Saharan pastoralists, forced to move into oasis areas by increasing aridification, and the first Predynastic cultures of the Nile Valley. The site is the only well dated stratified settlement attributed to the Late Neolithic in the eastern Sahara that is characterized by Tasian cultural traditions.     

Desert environment and origins of agriculture in Egypt

Examination of paleoclimatological and archaeological data from the Egyptian Sahara and the Nile Valley strongly suggests that management of animals and supplementary fanning appeared in the southern part of the Western Desert during the early Holocene under subarid conditions. Excessive annual and short‐term variability in rainfall, associated with pronounced temporal and spatial unpredictability of water and food resources, is considered one of the key factors stimulating the initiation of domestication. The onset of marked desertification during the 7th millennium bp motivated an eastward movement into the Nile Valley attested to by an almost simultaneous appearance of ‘Neolithic’ sites from the Delta to the central Sudan.     

Ancient Pottery Surface Treatments from Dakhleh Oasis,Egypt: an Experimental Study

This study examines the heating and cooling effectiveness of three common surface treatments associated with the prehistoric pottery from Dakhleh Oasis, Egypt. Experiments were conducted on replica vessels with plain, compacted and textured surfaces—observations on thermal damage were also taken to explore the relationship between surface treatment and vessel durability. The study is interested in understanding if, and how, these treatments perform differently in heating and cooling the vessel contents. This could help to explain long-term trends in the archaeological record at Dakhleh, particularly shifts in subsistence patterns. Importantly, the study highlights the potential to incorporate more experimental research within the expanding field of Egyptian ceramic studies.     

Systematic Reworking of Lithics from Earlier Cultures in the Early Holocene of Dakhleh Oasis,Egypt

Abstract

A raw material form scarcely mentioned in the literature on lithic production—chipped stone artifacts manufactured by members of still earlier cultures—is used for a substantial portion of the toolkits in certain industries of Dakhleh Oasis, south-central Egypt. In one group of early Holocene (Masara) sites, the majority of double patinated tools are chunky burins, systematically manufactured from Levallois flakes and similar thick-sectioned older artifacts. Since fresh chert and other workable stone is available in the area, it appears that old, recycled lithics constitute the preferred raw material for these tool classes. The sites in question seem to be field camps where the burins were both made and used.     

Humans as Ritual Victims in the Later Prehistory of Western Europe

The paper presented here addresses the issue of how far current evidence permits the admittance of ritual murder or human sacrifice in the European Iron Age. It argues from two basic premises: firstly that the notion of human sacrifice is the more acceptable within the context of strictly hierarchical, slave-owning societies for whom human life was not, of itself, sacrosanct; secondly that, since there is a solid body of both literary and archaeological evidence for human sacrifice in antiquity, there is no intrinsic reason to deny its presence in later European prehistory. However, scrutiny of the data reveals that, if human sacrifice did take place in Iron Age Europe, it appears to have been both rare and special. More importantly, virtually all the evidence has a measure of ambiguity and is capable of alternative interpretation.     

Cultural Origins of the Egyptian Neolithic and Predynastic: An Evaluation of the Evidence from the Dakhleh Oasis (South Central Egypt)

The debate surrounding the origins of the Egyptian Neolithic and Predynastic has, over the past few decades, come to rest on the neighboring Saharan region as the most likely source of influence. Although there is some evidence for the appearance of domesticates in the Western Desert before food-producing communities emerged in Upper and Lower Egypt, there is a strong case for the introduction of Saharan artifacts and technologies to the Nile Valley communities. This paper examines this argument in relation to the Western Desert region of the Dakhleh Oasis (South Central Egypt). The intent of the paper is to recognize the role Dakhleh played in the cultural development of the Egyptian Neolithic and Predynastic and whether this can clearly be seen through artifact parallels. Les parties débattant des origines de l'Egypte néolithique et pré-dynastique ont fini, au cours des dernières décennies, par conclure que la région voisine du Sahara était leur source d'influence la plus vraisemblable. Bien que certaines preuves existent de l'apparition de plantes et d'animaux domestiques dans le Désert occidental avant l'émergence de communautés produisant des aliments en Basse et Haute Egypte, de solides arguments émergent en faveur de l'introduction d'objets fabriqués et de technologies dans les communautés de la Vallée du Nil. L'exposé en question examine cet argument par rapport à la région du Désert occidental de l'Oasis de Dakhla (centre-sud de l'Egypte). Le but de cet exposé est de reconnaître le rôle de Dakhla dans le développement culturel de l'Egypte néolithique et pré-dynastique et de déterminer si oui ou non celui-ci peut clairement être identifié, de façon parallèle, au travers d'objets fabriqués.     

西域绿洲人与自然的互动与演变——以高昌绿洲为例

吐鲁番绿洲作为天山南麓——环塔里木盆地诸绿洲为代表,在欧亚大陆间不同人类文明的交流与发展当中占有非常独特的地位。西域绿洲文明经历了从萌发到成长到成熟这三个不同的阶段,绿洲文明随人而兴,亦有可能因人而衰,要保持绿洲文明的可持续发展,人与绿洲生态环境的良性互动是解决问题的关键所在。     

Eocene palynology of the Mulga Rocks deposits,southern Gunbarrel Basin,Western Australia

Mack, C.L. & Milne, L.A., 19.2.2015. Eocene palynology of the Mulga Rocks deposits, southern Gunbarrel Basin, Western Australia. Alcheringa 39, xxx–xxx. ISSN 0311-5518

Late Eocene palynomorph assemblages have been recovered from carbonaceous sediments within a tenement centred on the Mulga Rocks uranium deposits, currently under exploration by Energy and Minerals Australia. The Mulga Rocks deposits occur in a palaeovalley incised into rocks of the Cretaceous southern Gunbarrel Basin, and the underlying Neoproterozoic to Late Devonian southern Officer Basin, Western Australia. The palynomorph assemblages recovered from the Mulga Rocks deposits most closely resemble the Middle Nothofagidites asperus Zone equivalent of the Murray Basin. Many of the species recovered, and the abundance and diversity at which they are present, are considerably different from most of the southeastern Australian palynoassemblages of similar age. Common in the assemblages are species belonging to Nothofagus, Casuarinaceae, Myrtaceae and Picrodendraceae. Proteaceous species are diverse, with Banksia affiliates being prominent. Of most significance are assemblages dominated by Myrtaceidites species, which also contain affiliates of Petrophile and Xylomelum that occur in modern heathland, woodland and dry sclerophyll forests. The prominence of these taxa, and their co-occurrence, suggests that sclerophylly, at present linked closely with xeromorphy and now ubiquitous in the vegetation of Western Australia, was present in the late Eocene of southern Australia and suggests that at that time this trait may have been more prevalent than previously interpreted.

Charlotte Mack [charlotte.mack@postgrad.curtin.edu.au] and Lynne Milne [l.milne@curtin.edu.au], Department of Applied Geology, Curtin University of Technology, GPO Box U1987, Perth, WA 6845, Australia. Received 4.7.2014; revised 11.2.2015; accepted 19.2.2015.