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排序方式： 共有290条查询结果，搜索用时 15 毫秒
71.
This paper presents evidence for increased recovery of organic residues from archaeological pottery through use of a microwave‐assisted liquid chromatography protocol. C16:0 and C18:0 saturated fatty acids were obtained from archaeological potsherds recovered from nine Neolithic settlements in the Middle East dating between 4700 and 7300 cal bc , including materials that had not produced evidence for the survival of any lipid species through use of ‘conventional’ solvent extraction techniques. Compound‐specific isotopic analyses of C16:0 and C18:0 fatty acids in potsherd extracts subsequently revealed δ13C/δ12C compositions consistent with modern subcutaneous fats of wild boar and goats pastured on lands adjacent to the Jordan Valley, and residues from a modern pottery vessel used in the manufacturing of butter, cheese and yogurt in central Turkey. These results are presented as an illustration of capabilities of the microwave‐assisted recovery protocol. The reclamation of saturated and unsaturated fatty acids from archaeological pottery fragments recovered from a number of the earliest ceramic horizons in the Middle East is herewith reported, and the extraction methods and instrumental analytical techniques are described. 相似文献
72.
R. E. WOOD T. F. G. HIGHAM T. DE TORRES N. TISNÉRAT‐LABORDE H. VALLADAS J. E. ORTIZ C. LALUEZA‐FOX S. SÁNCHEZ‐MORAL J. C. CAÑAVERAS A. ROSAS D. SANTAMARÍA M. DE LA RASILLA 《Archaeometry》2013,55(1):148-158
Torres et al. (2010 ) published a series of radiocarbon, AAR, ESR and OSL dates from the site of El Sidrón, northern Spain, which is notable for the discovery of the partial remains of 12 Neanderthals. Whilst the non‐radiocarbon methods suggested an age beyond 32 600–46 300 years, direct radiocarbon dates on the human fossils were inconsistent, ranging between 10 000 and 50 000 bp . This study uses the ultrafiltration pre‐treatment protocol to obtain a date of 48 400 ± 3200 bp (OxA‐21 776) on a bone fragment and confirm the antiquity of the Neanderthal assemblage. Moreover, it demonstrates the comparability of the ultrafiltration and ninhydrin bone radiocarbon pre‐treatment protocols, and highlights the need for appropriate screening methods where valuable collections with poor biomolecular preservation are sampled for collagen extraction. 相似文献
73.
Miguel A. Martínez López 《对极》2013,45(4):866-887
Squatting empty properties for living or to develop public activities has lasted in European cities for more than three decades. Although local and national contexts differ significantly, there are also some general trends and patterns that deserve careful attention. When squatting occasionally appears in public debates, controversy is generated and many gaps open between academic, social and political perceptions. In this article I use evidence from several European cities to argue that the squatters' movement has produced an original impact in urban politics. The main feature of this impact has been to generate a relatively wide autonomous and mainly non‐institutional mode of citizen participation, protest and self‐management. How has this been possible? Which are the specific contributions made by this urban movement? These are questions that both scholars and activists continuously claim to be relevant, so that this research attempts to offer some general answers based on detailed comparisons and experiences. 相似文献
74.
We have applied and refined methods for the determination of bulk hydrogen, carbon and oxygen isotope ratios in modern and archaeological resins. The modern resins have a wide range of isotopic values and vary within the same tree, between individual trees, with species and location. For all isotopes measured, there is a general trend of increasing depletion of the heavier isotope with increasing altitude. There is also a linear trend between depletion of δD and δ13C values with increasing latitude; this trend is less clear for oxygen, but is related to the meteoric water line. Two case studies using archaeological resins known or suspected to have been transported in antiquity have been investigated to determine whether isotopic signatures can assist in pinpointing the geographical origin of the resin: Pistacia sp. resin from Canaanite amphorae imported into Egypt from known geographical locations in the eastern Mediterranean during the Late Bronze Age, and Roman amphorae sherds lined with Pinus sp. resin from sites ranging from Britain to the eastern Mediterranean. These results show separate groupings between the two resin types (pine/pistacia) and between the modern/archaeological resins. Some archaeological samples are distinct from the others and the modern resins show differences between geographical areas. However, there are no clear patterns relating the different Canaanite fabrics or the suggested manufacturing site of the Roman amphorae. 相似文献
75.
ABSTRACTTiming, inclement weather, and limited budgets can obstruct archaeological survey efforts. Here, we ameliorate some of these with use of ground penetrating radar (GPR) at the Goose Lake Outlet #3 (GLO#3) site (20MQ140). GPR surveys to guide survey and excavation efforts in these well-drained sandy soils are limited. GPR imagery exhibited false positives; however, shovel probes, subsequent site excavation, and artifact analysis led to numerous discoveries at this protohistoric site—including glass trade beads dating to the 1630s. These discoveries solidify evidence for some of the earliest European-made trade items in the region and provide further confirmation for placement of an Indian trail and ancient travel corridor between Lake Superior and Lake Michigan. Two 14C samples obtained from moose-bone in features with trade goods fall within the expected occupation range of 1633–1668 and 1615–1647. Several anomolies, possible hearth clusters were seen on the GPR imagery; however, many features remained invisible. 相似文献
76.
Yuliya E. Antonova Vasiliy I. Tashak Dmitrii V. Kobylkin 《International Journal of Osteoarchaeology》2020,30(2):131-144
Paleontological data from Palaeolithic sites in the Transbaikal region are frequently interpreted from the viewpoint of palaeoenvironmental reconstruction. This research describes faunal material from one of the largest Initial Upper Palaeolithic settlements in Transbaikalia Podzvonkaya and the general characteristics of ancient human hunting activity there. The archaeological context of the faunal remains (located near hearths and in the kitchen midden) indicates the bones at the site are kitchen waste. The species composition indicates which species Podzvonkaya's inhabitants preferred to hunt. The largest number of remains belongs to horse, argali, bison, and Mongolian gazelle—animals that prefer open steppe and dry‐steppe landscapes. The results of a spore‐and‐pollen analysis of Podzvonkaya deposits reveal the domination of grass flora. The Tamir River valley could have been the habitat of the main target species, and ancient people probably hunted in the territory within the valley and in the valley's vicinity. Intraregional correlation with data on the species composition of the large mammals within other Palaeolithic remains of the Western Transbaikal region supports a conclusion regarding the identity of fauna at the final stage of the late Neopleistocene. Data from sites belonging to the same culture and period reveal identical prey lists, with certain preferences explained by site type (ie, long‐term base settlement or short‐term hunting camp). 相似文献
77.
C. Bakels 《Archaeometry》2019,61(2):470-477
This paper describes an experiment to provide baselines for the δ15N values of prehistoric cereals. Emmer wheat and barley were grown in tubs filled with two different substrates and placed in a cage to protect them from birds and cats. The experiment lasted three years. Values obtained in this way may serve in cases where no experimental farms of long standing with unmanured fields can provide them. The results are in line with the values obtained at such farms, as well as with values presented for ethnographic cases in the literature. 相似文献
78.
Amy E. Ritterbusch 《对极》2019,51(4):1296-1317
In this paper, I discuss the ways I have fallen short as a participatory geographer and activist both in my teaching and research practices. I use three critical moments in the development of our PAR collective in Colombia to push debates in geography on participatory research and pedagogy further through reflection on my struggles in the streets and in the university. Additionally, I connect these experiences and previous discussions in participatory geographies with Orlando Fals Borda's discussion of sentipensar (a concept that engages feeling and thinking simultaneously). I draw attention to the Latin American origins of PAR philosophy by placing Fals Borda into dialogue with the protagonists of our social movement in Colombia including human rights activists, homeless drug users and sex workers. In a general sense, this paper is an examination of the challenges I have faced in the contact zones of PAR inside and outside the classroom. 相似文献
79.
Maria Daniela Sanchez‐Lopez 《对极》2019,51(4):1318-1339
The Uyuni salt flat (Salar de Uyuni) in Bolivia possesses the largest lithium deposit in the world. Over the past 40 years, this location has been commodified and radically transformed. This paper examines how a landscape, understood from its material attributes and qualities, shapes and is shaped by social relations unfolding in a process of commodification and mining expansion. Based on primary qualitative data, the paper explores two elements: (1) how the symbolic meaning of this landscape has changed over time for the surrounding indigenous communities; and (2) how the different materialities of the salt flat as landscape, as ulexite and as lithium allow understanding of the drivers of socio‐environmental change and conflict in this region. The paper argues that social relations and governance frameworks are interlinked with changing symbolic meanings and the different materialities of the Uyuni salt flat. 相似文献
80.
Dany Coutinho Nogueira Bruno Dutailly Florent Comte Alexandr Vasil'iev Alexandr Khokhlov Tatiana Shvedchikova Natalia Berezina Alexandra Buzhilova Olivier Dutour Hlne Coqueugniot 《International Journal of Osteoarchaeology》2019,29(2):191-197
The invasion of Russia by the Napoleonic Grande Armée was a complete disaster. The French army was decimated during the retreat from Russia. Thousands of victims were buried in mass graves located near several cities during the retreat. One of these mass graves was discovered in in the centre of Kaliningrad (formerly Königsberg), presently the most occidental oblast of the Russian Federation. Some skeletons revealed evidence of violence related traumatic injuries. Among them, the skeleton C2 belonged to a young male, who had suffered a serious injury to the lower face. The state of post‐traumatic remodelling indicated survival of about 2 months (between more than 6 weeks and less than 3 months). The 3D reconstruction of the mandible and the maxilla contributed additional information about the injury, its cause, and treatment. This permitted pretraumatic reconstruction of the viscerocranium and mandible through the application of two new techniques: virtual osteotomy and virtual bone transplant from another individual and perform an approximation of the face (to recreate the soft tissues) of this unidentified soldier using anthropological facial approximation in three dimensions software. These results highlight the use of 3D methods in paleopathology and forensic anthropology to reconstruct traumatic facial injuries and the pretraumatic facial appearance. 相似文献