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1.
Instrumental neutron activation analysis was performed on 79 obsidian tools and flakes from 35 sites on Sakhalin Island dating from Upper Paleolithic (c. 19,000 bp ) to Early Iron Age (c. 2000–800 bp ). Due to the absence of volcanic glass on Sakhalin Island, raw materials from the nearest obsidian sources on Hokkaido Island, such as Oketo, Shirataki, Tokachi-Mitsumata, and Akaigawa, were also analysed. A strong correlation between the chemical compositions of obsidian artefacts from Sakhalin and volcanic glass sources from Hokkaido was discovered. In particular, the Oketo and Shirataki sources were used for tool manufacturing throughout all of Sakhalin Island's prehistory. The distances between sources and archaeological sites range from 200–1000 km. The intensive exchange of raw materials continued and even intensified after the appearance of the La Pérouse (Soya) Strait between Hokkaido and Sakhalin about 10,000–8000 bp. The Sakhalin Island populations were deeply involved in the obsidian exchange network centered on Hokkaido.  相似文献   

2.
The Sincu Bara site in Senegal is one of the most famous archeological sites in Western Africa. Here we present the results of a multi-proxy study that combined microscopic analyses, carbon content, stable carbon isotope (δ13C) and radiocarbon (14C) measurements. This investigation exhibits a chronological framework in two phases: from 400 yr AD to 650 yr AD and 650 yr AD to 900 yr AD. Furthermore, it shows that besides basic potteries, some potsherds are notable for a temper exclusively made with human-harvested C4 plants. Finally, the 14C analysis performed on the organic slip strongly indicates the use of bitumen or bitumen-derived products for red slip preparation. This suggests the establishment of trade relationships with Nigerian and/or Trans-Saharan populations as early as 400 yr AD.  相似文献   

3.
Two Pliocene archeological sites, LA1 and LA2C, reported from Lokalalei, west of Lake Turkana in Kenya, were previously placed at approximately the same stratigraphic level. LA2C actually lies about 20 m higher in the section than LA1, and is perhaps as much as 100,000 years younger in age.  相似文献   

4.
5.
Luminescence dating results are reported for two South African archaeological sites where changes in the dose rate through time are apparent. A subtraction procedure involving analysis of both quartz and potassium-feldspar extracts is applied to detect and correct for these changes. At the Middle Stone Age site of Klasies River, the dose rate changes inferred from geologic evidence for shell dissolution turn out not to be significant, having occurred rapidly after deposition. The dates here range from 50–115 ka, in broad agreement with other evidence. The important Howiesons Poort component here appears to date somewhat later (about 55–60 ka) than at several other sites in South Africa. At the Acheulian site of Duinefontein, the dose rate changes, also thought to be caused by shell dissolution, are, on the other hand, very significant. The subtraction ages here (125–300 ka) agree with independent chronological assessments.  相似文献   

6.
Pine marten, Martes martes, is the dominating fur prey at three contemporaneous Danish Late Atlantic sites, Agernæs (EMNI = 34), Ringkloster (EMNI = 41) and Tybrind Vig (EMNI = 26). All skeletal elements are represented and the only marks present on the skeleton are those consistent with skinning. Burned teeth in the three populations suggest either new hunting methods or a ritual act. Ringkloster is on the mainland, while Tybrind Vig and Agernæs are island localities. Morphometric data indicate that the subfossil population of larger individuals was maintained on the mainland due to free migration, while the animals in the subfossil island populations had decreased in size in the Late Atlantic.  相似文献   

7.
Eleven Olivella biplicata spire-lopped shell beads from six sites located 250–365 km inland from the Pacific coast of southern California produced AMS dates between 11,200 and 7860 CAL BP. Olivella shell beads were well-documented items of prestige and media of exchange in Native California, and recovery of these examples from inland contexts indicates low-level exchange between resident populations of the coast and the southwestern Great Basin by at least 10,300–10,000 CAL years BP. These findings represent some of the earliest unequivocal evidence for long-distance trade in western North America and push the antiquity of this important form of inter-group interaction back several thousand years earlier than previously thought.  相似文献   

8.
A gradual population increase accompanying climate cooling has been evinced as having occurred in western Japan during the Middle (ca. 5000–4000 years BP) to Late-Final Jomon period (ca. 4000–2300 years BP). We test the hypothesis that this population change paralleled increasing human migration. We also test the archaeological hypothesis that types of ritual tooth ablation can be used to distinguish between locals and immigrants during the Late-Final Jomon period. We measured strontium isotope ratios in human skeletal remains from the Middle Jomon Ota and the Late-Final Jomon Tsukumo sites located in the Sanyo region of western Japan. Tooth enamel and bone were analyzed, and modern plant samples were collected in the areas surrounding the two sites to make a map of environmental strontium isotope ratios. The biosphere strontium isotope ratios correlated well with the underlying geology, enabling us to put forth a hypothesis of immigrants’ origins. There were no migration pattern differences between the Middle and Late-Final Jomon groups, indicating that the gradual population increase was caused by an increase in the indigenous population. All the Tsukumo individuals are locals, and this finding indicates that types of tooth ablation did not distinguish between locals and immigrants. Alternative hypotheses for the presence of different tooth ablation types in the Jomon society should be explored.  相似文献   

9.
The distribution of frequencies of radiocarbon-dated Palaeolithic sites in northern Eurasia shows three peaks of 40–30, 24–18 and 17–1 ka bp. We argue that these peaks reflect the waves in the colonization of that area by Anatomically Modern Humans stemming from Central and Eastern Europe and caused by environmental stress.  相似文献   

10.
The carbon isotope fractionation between tooth enamel bioapatite, breath CO2, and diet was measured for voles, rabbits, pigs, and cattle on controlled diets. The measured fractionation (expressed as isotope enrichment ɛ*) between enamel and diet was 11.5 ± 0.3‰, 12.8 ± 0.7‰, 13.3 ± 0.3‰, and 14.6 ± 0.3‰ for these respective species. There is a 1:1 correlation between ɛ*breath–diet and ɛ*enamel–diet (r2 = 0.94, p < 0.01), whereas our data do not resolve significant inter-species differences in ɛ*enamel–breath. These findings are consistent with the hypothesis that inter-species differences in ɛ*bioapatite–diet are primarily a result of differences in digestive physiology, rather than differences in the magnitude of fractionation between mineral and body fluid.  相似文献   

11.
Stable isotope signatures of both human and non-human animal bone samples indicate that Neolithic farmers of the Yellow and Wei River basins in China potentially cultivated millet for two reasons: as a staple for human consumption and as fodder for domesticated animals, specifically pigs, dogs, and perhaps chicken. Bone samples were analyzed from four Neolithic sites: Jiangzhai, Shijia, Xipo, and Kangjia, spanning the time period from 7000 to 4000 years ago. A combination of very high carbon isotope ratios (δ13C = −7.7 ± 0.4‰) and low nitrogen isotope ratios (δ15N = 7.5 ± 0.5‰) in samples of Xipo pig and dog bone suggests that these monogastric animals consumed substantial quantities of C4 plants, almost certainly millets. In fact, the proportion of C4 plants in animal diets appears to have been even greater than that in human diet. Stable isotope values (δ13C = −10.0 ± 0.8‰; δ15N = 8.3 ± 0.5‰) of human bone collagen recovered at Jiangzhai and Shijia indicate a staple role for millets, as well as the consumption of both wild and other non-C4 domesticated plant foods. As millet agriculture and animal husbandry apparently depended on one another, a strong mutualism between them was likely established in northern China during the Neolithic. We propose that variable redistribution of agricultural products between humans and animals, depending on the availability of wild resources and annual fluctuations in agricultural output, helped ensure the stability of Neolithic human subsistence in the Yellow and Wei River basins.  相似文献   

12.
For over half a century, a border zone mandated by bilateral treaty has existed along the full length of the international border between Nepal and China's Tibetan Autonomous Region (TAR). Since 2002, people classified as “border inhabitants” who live within 30 km of the border on both sides have been issued “border citizen cards” which allow them to cross the border without a passport or a visa, and travel up to 30 km on the other side. This article explores historical and contemporary experiences of life in the Nepal–TAR border zone for such border citizens. Their state-sanctioned cross-border mobility complicates existing work on Tibetan refugee citizenship, and expands previous models for understanding ethno-political identities and sovereignty in the Himalayan region. The legally recognized category of border citizenship between Nepal and China's TAR provides a compelling example of how states may create alternative categories of citizenship in response to practices from below, while further shaping such practices through regimes of differentiated citizenship. I argue that this form of border citizenship emerges out of non-postcolonial trajectories of state formation in the Himalayan region, which offer important contrasts with other parts of South Asia.  相似文献   

13.
Nearly 200 rock art sites of Upper Paleolithic age are currently known on the Iberian Peninsula, in both caves and the open air. Over half are still concentrated in Cantabrian Spain and they span the period between c. 30–11 kya, but–tracking the course of human demography in this geographically circumscribed region–many of the images were probably painted or engraved during the Solutrean and, especially, Magdalenian. Dramatic discoveries and dating projects have significantly expanded the Iberian rock art record both geographically and temporally in recent years, in close coincidence with the growth of contemporaneous archeological evidence: cave art loci in Aragón and Levante attributable to the Solutrean and Magdalenian, many cave art sites and a few open-air ones in Andalucía and Extremadura that are mostly Solutrean (in line with evidence of a major Last Glacial Maximum human refugium in southern Spain), the spectacular Côa Valley open-air complex in northern Portugal (together with a growing number of other such loci and one cave) that was probably created during the Gravettian-Magdalenian periods, and a modest, but important increase in proven cave and open-air sites in the high, north-central interior of Spain that are probably Solutrean and/or Magdalenian. Despite regional variations in decorated surfaces, themes, techniques and styles, there are broad (and sometimes very specific) pan-Iberian similarities (as well as ones with the Upper Paleolithic art of southern France) that are indicative of widespread human contacts and shared systems of symbols and beliefs during the late Last Glacial. As this Ice Age world and the forms of social relationships and ideologies that helped human groups survive in it came to an end, so too did the decoration of caves, rockshelters and outcrops, although in some regions other styles of rock art would return under very different conditions of human existence.  相似文献   

14.
This paper presents the first chronometric dates for sediments that contain a Mousterian industry in Dalmatia (south Croatia). Electron spin resonance (ESR) dating was conducted on two teeth from the Mousterian level E1 at the site of Mujina Pećina. Additionally five bone and one charcoal sample from five different strata of origin at this site were dated by accelerator mass spectrometry (AMS). Assuming 30% moisture for both the gamma and beta dose rate calculations, the mean LU ESR age estimate is 44±5 ka for level E1, which is statistically indistinguishable from the mean EU ESR age estimate of 40±7 ka. A single, uncalibrated 14C age from the E1/E2 interface yielded an age estimate of 45,170 +2780/−2060 years bp while the mean of the five samples from overlying Mousterian levels is 39±3 ka. The true (calibrated) age of this mean is about 42 ka, which means that the entire stratigraphic profile in Mujina Pećina apparently was very rapidly deposited, and that the ESR age, regardless of uptake model is in good agreement with the calibrated 14C mean age. Temporally, Mujina Pećina overlaps with Pontinian Mousterian sites in west-central Italy and Vindija level G3 from northwestern Croatia. However, there are notable differences between the Mousterian industry from Mujina Pećina and these other sites. Collectively, the Croatian sites yield important evidence on the adaptation of European Mousterian people.  相似文献   

15.
The magnetic susceptibility of a collection of 212 archaeological samples of burnt clay of different origin (burnt soil, ovens and bricks) taken from 60 archaeological sites from Bulgaria, were studied in order to determine factors which may have affected their magnetic enhancement. The highest magentic susceptibility values were obtained for bricks, and the lowest for burnt soils, suggesting that the firing temperature and the duration of burning are important conditions for determining magnetic enhancement. Specific spatial pattern of the low-field magnetic susceptibility was also observed, characterized by separation of sites situated in northern and southern parts of the country, divided by the west-east trending mountain chain Stara Planina. Maximum susceptibility values are obtained for burnt soils in southern Bulgaria and minima in northern Bulgaria. In contrast, burnt clay plasters and bricks show the opposite picture. It is supposed that the observed pattern is due to differences in the outcropped geological formations and variable climate conditions between the two regions which determine different iron-supply during burning of initial clay material. Results from the thermomagnetic analyses show that the dominant ferrimagnetic mineral in all burnt clay materials studied, is magnetite/titanomagnetite with low Ti content and different grain-sizes. High values of frequency-dependent magnetic susceptibility indicate the presence of significant amount of fine-grained (d<0·015 μm) superparamagnetic magnetite.  相似文献   

16.
Recent excavations at the Neolithic site of Hagoshrim, northern Israel, have yielded a large assemblage of skeletal fragments, representing mostly caprines, cattle and pigs. The three layers of the site's occupation span approximately 2000 years of a crucial period in the domestication of these taxa in the southern Levant, including Pre-Pottery Neolithic C (Layer 6, 7562 ± 85 BP and 7735 ± 55 BP) and the Pottery Neolithic cultures, Jericho IX (Layer 5, 6725 ± 120 BP) and Wadi Raba (Layer 4, 6505 ± 120 BP). Therefore, this site provides an outstanding opportunity to study the process of domestication in a comparative manner, both across taxa and through time. We used kill-off patterns, size reduction and changes in body proportions, and introduced statistical methods to discern the different stages of the domestication process for each taxon. Pig remains reflect simultaneous changes at the end of the 7th millennium BP: kill-off patterns, size and proportions of cranial and post-cranial elements all change between Layer 5 and 4 with no significant changes between Layer 6 and 5. Gradual changes—both between Layer 6 and 5 and between Layer 5 and 4—were found only for cattle, while caprine remains exhibit no changes throughout the site's occupation. These results can be explained in light of the differences between the taxa in terms of their life history strategies, among other things, that can be viewed as pre-adaptations to domestication.  相似文献   

17.
The functional morphology of postcranial remains can be used to infer habitat preference. This approach is typically considered an “ecomorphological” method, and has frequently been applied to bovid postcranial remains. Methods for predicting habitat preference from bovid postcrania currently exist for femora, metapodials, and astragali. Here we describe three methods for predicting paleohabitats using measurements of African bovid phalanges (proximal, intermediate, and distal). The proximal phalanx method correctly predicted the habitat preference for 130 of 183 modern bovid specimens (71.0%, 2.8 times better than chance, p < 0.0001). The intermediate phalanx method correctly predicted the habitat preference for 115 of 163 modern bovid specimens (70.6%, 2.8 times better than chance, p < 0.0001). The distal phalanx method correctly predicted the habitat preference for 87 of 122 modern bovid specimens (71.3%, 2.8 times better than chance, p < 0.0001). These accuracies compare well with those of existing such methods (1.8–3.4 times better than chance). Analysis of the probabilities associated with the habitat predictions allows confidence thresholds to be established that identify specific predictions which have <5% chance of being in error. This raises the effective accuracy of the methods to 95%. Extensive exploration and manipulation of the underlying data demonstrate that the habitat predictions are generally robust, and are relatively independent of body weight, taxonomy, and sample composition. These methods are broadly applicable, relatively accurate, and can be used to generate independent predictions of habitat from different elements, and thus constitute a useful approach to inferring past environments.  相似文献   

18.
Attirampakkam, an open-air stratified Palaeolithic site in southeastern India is the focus of ongoing studies to investigate the nature of Lower and Middle Palaeolithic occupation in relation to changing Pleistocene environments. The paucity of faunal or palaeobotanical remains at the site required the use of rock magnetic properties (χlf, χfd, χfd %, χARM, SIRM, χARM/SIRM, SIRM/χlf, χARM/χlf, χARM/χfd, S-ratio, HIRM and HIRM/IRM300mT) as proxies for deciphering the palaeoenvironments and palaeoclimates of the region. Rock magnetic data from stratified deposits within excavated trenches show that the bulk of the sedimentation was intermittent with no subaerial exposure of sediments for long periods, and points to fluctuating wetter and drier climates associated with the Acheulian to Late Middle Palaeolithic levels. There is a general trend towards a wetter climate from Layer 5 upwards. Layer 7 offers evidence of bacterial magnetite (χARM/χlf > 40 and χARM/χfd > 1000), suggesting the onset of micro-anaerobic environments as a result of floods. Greigite is indicated in Layer 5 (SIRM/χlf > 30 × 103 A m?1), which indicates a reducing environment. Layer 2 represents an arid climate (higher proportion of haematite and a coarser magnetic grain size). Layer 1a again is indicative of an arid climate (presence of calcrete, magnetically “hard” minerals and coarser magnetic grain size). Results indicate that the southeast coast of India experienced a mostly dry tropical climate during the Pleistocene. The detected occurrence of a few notably more arid intervals did not disrupt occupation of the site by successive groups of hominins.  相似文献   

19.
Excavations at the Kraków Spadzista Street (B) site, Poland were conducted over 16 years in which approximately 150 m2 of the site was studied. The radiocarbon dates clustered around 23–24 ky BP, placing the site in the Gravettian cultural complex. In this paper, results from a detailed taphonomic study of faunal remains are discussed in conjunction with previous analyses of stone artefacts and site structure in order to address questions regarding site formation and Gravettian occupation. Up to 1994, ∼9000 bone remains were recovered and it was possible to identify the species and skeletal element for 5860 remains. The site contained bones of seven animal species associated with Pleistocene steppe–tundra habitats. At Kraków Spadzista Street (B), 99% of the faunal remains belong to the woolly mammoth, with other large mammal taxa represented by only isolated bones and teeth. This site yielded the largest number of mammoth bones and most individuals (MNI = 86) ever found in one place in Poland. Kraków Spadzista Street (B) represents a mammoth butchering locality and probably a mammoth hunting site as well. However, it is not yet possible to distinguish the mammoths killed by Gravettian hunters from those that died naturally and then were scavenged by people.  相似文献   

20.
Since the early 1990s, excavations of a protohistoric lakeside settlement in the Korça basin carried out by a French–Albanian archaeological team have induced geomorphological and palynological studies about the sedimentary records of Lake Maliq. These studies allow us to distinguish a series of centennial-scale high and low lake level events between 4200 and 4000 cal BP (2899–2637 BC/2843–2416 BC) and 2600 cal BP (822–671 BC), probably due to large-scale climate changes (in the Mediterranean basin). In addition, the sediment sequence also gives evidence of a millennial-scale trend of lake level rise. It appears to be an interplay between lake level rises and falls against tectonic subsidence of the basin allowing accommodation space for sediment deposition.The variations of the lake's level and the lake's surface area influenced the development and the abandonment of the nearby lakeside settlements (like the tell of Sovjan). In order to prepare an archaeological survey around the now dried up lake, we made a 3D model of the Holocene deposit from the lake including these lake level results, geomorphological mapping, excavation data, numerous core logs, AMS 14C dating and SRTM DEM data. The GIS model allowed us to propose four palaeogeographical reconstructions of the extension of Lake Maliq: around 14,000 BP, during the Mesolithic (around 9000 BP – 8781–8542 BC), the Early/Middle Bronze Age transition (around 3800 BP – 2310–2042 BC) and the Iron Age (2600 BP – 822–671 BC). A map of the thickness of the sediments above potential archaeological layers is also proposed.  相似文献   

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