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1.
Recent field prospection and test excavations in the Meknassy Basin (Central Tunisia) has revealed many prehistoric sites covering almost all the phases of North African prehistory from the Palaeolithic to the Neolithic. Excavations at the Aïn El-Guettar Mousterian site has yielded a faunal assemblage dominated by bovids and equids. One human tooth was found in situ. The stratigraphic sequence contains charcoal-rich occupation layers with faunal, human and lithic finds. A level with an industry resembling the Aterian was found beneath a Mousterian layer. The excavations at Aïn Oum Henda 2 (Jebel Maloussi) provided many Middle Palaeolithic lithic artefacts, some of which are pedunculates. From the excavations of the Rammadiya El Oghrab (Jebel Bou Hedma) we recovered some bones of antelope, many fragments of ostrich egg shell (among them a worked disc), an enormous quantity of flint (tools and splinters) and of land snails. In spite of the scarcity of land snails and the absence of bone in the rammadiya of Jebel Bou Hedma 1, the site produced a beautiful flint collection including an arrowhead found on the surface, which led us to place the site in the Neolithic.  相似文献   

2.
Land snails recovered from shipwreck excavations can potentially provide information regarding human-based dispersal of the involved species and also contribute to hypotheses regarding a ship's route and geographical origins of some of its cargo. Such faunal material, however, must be subjected to critical study to ascertain whether they represent specimens originally associated with the ship itself or are simply elements introduced to the site after the ship sank. The excavation of a Late Bronze Age shipwreck at Uluburun, in southern Turkey, produced 36 land snails. Of these, 32 specimens are believed to have been on board the vessel in antiquity. Three other specimens represent an endemic Metafruticicola species, which lives exclusively in a 10 km zone in the region of Uluburun. The proximity of the species' habitat to the shipwreck site suggests that these specimens are intrusive elements. The intrusive nature of a single Zonites specimen also recovered from the excavation is amply demonstrated by a detailed comparative study of Zonites specimens collected in the same locality. The last study, which involves the analysis of spatial shell variations of populations collected from 61 separate localities (totalling 367 specimens) within a 50 km area extending from Megisti (Kastelórizo) and Kas to Finike, suggests that: (1) Zonites beydaglariensis is conspecific with Z. caricus, and (2) the shipwreck specimen not only belongs to this species, but that it originates from a population on the rocky Uluburun peninsula 0·8–1·2 km north of the shipwreck site. The specimen was probably blown into the sea by a natural phenomenon and settled on the shipwreck site.  相似文献   

3.
本文认为,新干大洋洲商代大墓中出土的3件虎形玉扁足和4件镂空扉棱玉片,应是商代漆器上的扁足及漆鼎腹部装饰的扉棱,进而大致推定出漆鼎玉足和腹部扉棱玉片的镶嵌方法。  相似文献   

4.
Summary. Holes drilled after firing are an occasional occurrence in earlier prehistoric pottery, and are generally accepted as intended to enable repair of cracks or breaks by binding. It would seem reasonable to expect that rates of repair would be fairly consistent, but this is not the case with later Neolithic ceramics in southern Britain. There, drilled holes are more common in the Grooved Ware tradition than in the Beaker or Peterborough traditions, and it is suggested that this may be owing to the high symbolic content of Grooved Ware rendering the repair of such vessels particularly worthwhile to their users. Other factors likely to influence the decision to repair rather than discard vessels are considered, and in this connection the fabrics of repaired vessels in the earlier Neolithic assemblage at Maiden Castle are also briefly discussed. A short list of sites with repaired vessels is appended.  相似文献   

5.
The later post-glacial history of a valley in the chalk escarpment near Brook, Kent, is described, based on molluscan stratigraphy, archaeological evidence and radio-carbon dating. Differences in size and colour banding, respectively, of fossil and living representatives of two species of land snails, Pomatias elegans (Müller) and Cepaea nemoralis (L.), are correlated with climatic change during the post-glacial period. The problems of the use of fossil shells of these species as samples for radiocarbon dating are discussed.  相似文献   

6.
Summary.   In 2003 a substantial deposit of heavily fragmented shells of purple snails was by chance located at the site of Andriake, the ancient port of the Lycian city of Myra near Demre, in southern Turkey. The archaeozoological and archaeological record of a survey project in 2004 proved the identification of a large installation for the production of purple dye. Adjacent to a well preserved Hadrianic granary and partly superimposing the remains of a U-shaped building, the deposit is wrapped around three sides of a subterranean cistern. Apparently dating to the sixth century AD, the deposit contains approximately 300 m3 of shell debris. The unique chance of examining an undisturbed and well preserved manufacturing place for purple dye provides an excellent opportunity to investigate the processual particularities as well as the ecological impact of purple-dye production in antiquity.  相似文献   

7.
Shell beads are well established in the archaeological record of sub-Saharan Africa and appear as early as 75,000 BP; however, most research has focused on ostrich eggshell (OES) and various marine mollusc species. Beads made from various land snails shells (LSS), frequently described as Achatina, also appear to be widespread. Yet tracking their appearance and distribution is difficult because LSS beads are often intentionally or unintentionally lumped with OES beads, there are no directly dated examples, and bead reporting in general is highly variable in the archaeological literature. Nevertheless, Achatina and other potential cases of LSS beads are present at over 80 archaeological sites in at least eight countries, spanning the early Holocene to recent past. Here, we collate published cases and report on several more. We also present a new case from Magubike Rockshelter in southern Tanzania with the first directly dated LSS beads, which we use to illustrate methods for identifying LSS as a raw material. Despite the long history of OES bead production on the continent and the abundance of land snails available throughout the Pleistocene, LSS beads appear only in the late Holocene and are almost exclusively found in Iron Age contexts. We consider possible explanations for the late adoption of land snails as a raw material for beadmaking within the larger context of environmental, economic, and social processes in Holocene Africa. By highlighting the existence of these artifacts, we hope to facilitate more in-depth research on the timing, production, and distribution of LSS beads in African prehistory.  相似文献   

8.
In this paper we analyzed the natural dyes in well-preserved, ancient textiles from Yingpan, an important archaeological site on the Silk Road, using high-performance liquid chromatography with diode array and mass spectrometric detection. Dyes were removed from textile fibers using a soft extraction method (pyridine, water and oxalic acid). Two species of madder-type plants, Rubia tinctorum and Rubia cordifolia were identified as the dye sources in red and brown samples. We also were able to detect unusual flavonoid glycosides in yellow and green woolen yarns, although we have not been able to pinpoint with certainty a specific plant that may have been used to produce this dye(s). On the other hand, we found that yellow and green silk threads had been colored with protoberberine-type dyes, probably obtained from species of cork tree, Phellodendron spp., and/or other protoberberine producing plant. We propose that the textile dyes found at Yingpan reflect a merging of Eastern and Western practices and technologies during the 800-year period (206 BCE–618 CE) encompassing the early years of the Silk Road.  相似文献   

9.
We have explored laser depth profiling to obtain data sets for U-series as well as Sr analyses. Laser probing with an 81 μm spot size allows for the exploration of low uranium domains of up to 400 μm below the outer surface in tooth enamel. These low U domains will contain Sr isotope compositions of the individual, that are least affected by diagenetic Sr overprints. The small holes drilled for U surveying are not visible to the naked eye. Using larger spot sizes of around 233 μm, laser drilling can be used to obtain reliable U-series isotope data to a depth of approximately 1000 μm in enamel and around 1300 μm in bone. Furthermore, meaningful 87Sr/86Sr isotope data can also be obtained with this spot size. Using our sampling strategy, the overall damage to a human tooth is minute, as demonstrated on a Neanderthal tooth from Moula-Guercy. We expect that laser ablation depth profiling will become routine for gaining insights into the age of human fossils and the migrations of ancient humans.  相似文献   

10.
In 2012, fragments of hull planking bearing the signs of a Roman‐era sewn vessel, with holes drilled along the plank edges, washed ashore on Venice Lido, the barrier island separating the Venice Lagoon from the Adriatic Sea. This paper describes the construction features of this timber assemblage and places it within the context of other excavated sewn boats of the Upper Adriatic. The assemblage presented here best fits into the north‐western Adriatic sewn tradition and likely represents either a fluvial‐maritime or maritime watercraft.  相似文献   

11.
A 2 × 2 m column was excavated within the large-scale excavation carried out by a Jugoslav team at tell Gomolava, Hrtkovci, Jugoslavia, occupied from Vinc?a (c. 5000 BC) to post-Roman times. The archaeological zonation of the column's material is briefly outlined to provide the background to the detailed palaeobotanical, palynological and malacological study. The results of this study are used to aid the reconstruction of the palaeoenvironment of the tell. They indicate that the earliest agrobotanical zone, in which most of the cultigens were already present, but which is characterized by a very low count of charred seeds, persists throughout the Vinc?a, Baden and most of the Kostolac layers of the tell. A marked increase in charred seeds, without the appearance of new species, occurs in the next zone (Bronze and Iron Age). In zone 3 (Iron Age and Roman), Triticum dicoccum, Triticum aestivum and Lens culinaris attain significant levels.An interesting correlation between an increase in shade-loving snail species (zone B) and increase in building activity in the same level needs to be verified by further similar studies. This level is approximately that of the end of the Vinc?a occupation, but does not precisely correlate with an archaeological transition, suggesting that new building styles may have ante-dated the full development of the Baden cultural group on the site. During the third malaco zone (zone C) most shade loving snail species decrease abruptly to make place for open country species. The spread of these species could have been caused by the partial or total abandonment of the tell. Aquatic snails, which had first appeared in the lowest habitation layers of the tell become rare towards the subsequent bronze and iron age occupation of the tell, indicating that hardly any riverine clay was used for the construction of houses within these periods. The final malaco zone, representing the disturbed iron, roman and medieval periods indicates that again open grassy slopes must have occurred on or around the tell.  相似文献   

12.
Pottery sherds stained with purple dye were found in the excavations at Tel Shiqmona, and were dated to the Iron Age II period. Analysis by HPLC‐DAD identified the dye as ‘true purple’, derived from the Hexaplex trunculus sea snail, which is associated with the purple‐dye industry that flourished in the coastal area at that time. This result is compatible with the classification of over 1000 Muricidae shells that were found in the excavation. Hexaplex trunculus constitutes 80% of this group, indicating that it was the most commonly used species in the dye production at Tel Shiqmona.  相似文献   

13.
Recent archaeological investigation at the Coconut Walk site on the Caribbean island of Nevis revealed dense 40 cm deep midden deposits that accumulated between cal AD 890–1440. Analysis of invertebrate faunal remains reveals an assemblage dominated by nerite snails. We measured the length and width of more than 2700 tessellated nerite (Nerita tessellata) shells to investigate evidence for changing mean size that might be indicative of intensifying human predation pressure or other cultural and natural processes. Contrary to similar archaeomalacological studies in which size decline is detected, we observed a statistically significant size increase for N. tessellata over time. This size increase is coupled with increasing levels of tessellated nerite exploitation at the Coconut Walk site. Results suggest that tessellated nerite use was sustainable over several centuries of site occupation. Our findings have important implications for investigations of anthropogenic impacts on prehistoric mollusc populations. In addition, the findings reported here provide important insight into human subsistence patterns during the Late Ceramic Age in the Caribbean and a framework for comparison with observations from other Pre-Columbian sites in the Caribbean.  相似文献   

14.
Abstract

The question of the anthropic or natural origin of land snail deposits within the archaeological record is the subject of debate all over the world. In the Cantabrian region of northern Spain land snail middens are routinely identified in the early Holocene archaeological record. La Fragua Cave (Cantabria, Spain), which contains an early Holocene layer dated to 9600±140 BP (10,932±196 cal BP), offers the opportunity to address this debate through the examination of Cepaea nemoralis (Linnaeus) land snails recovered in direct association with mammal bones, charcoal, lithic artefacts and other materials. It is therefore believed that their presence at the site is clearly anthropic in origin. In addition, the exploitation patterns indicate an occasional collection and consumption of land snails, which confirms the complementary character of these resources in the diet of hunter-gatherers in Cantabrian Spain during the Pleistocene-Holocene transition.  相似文献   

15.
Marine exploitation in Byzantium had developed to become an industry by the early 10th century, but the systematic study of the various pieces of information scattered through a range of sources has only just begun. Despite the piecemeal nature of the evidence, it has been possible to sketch out a picture of the organised and methodical exploitation of the empire’s marine resources through large and expensive investments, such as in epochai and vivaria, which facilitated an uninterrupted supply of marine products to the cities. It is the development of these features that merits the use of the term “industry”. Byzantium sustained elaborate methods for supplying food to its employees which was provided either during the exercise of their duties, as part of their reward, as a mark of their privileged status, or even based on legitimate legal claims. Large groups of people benefited from the work of those involved in primary production (fishermen, epochai/vivaria owners and lease holders), without necessarily having contributed to the initial investments or expenses. By clarifying these distribution methods, it is evident that the circulation and consumption of marine products in Byzantium was larger than previously thought, and middle and lower class citizens actually did participate and have a share in it. Marine product consumption was not simply restricted by the producer-buyer or offer-demand relationship, it involved social parameters that are not immediately and easily recognisable because of the fragmentary nature of the available information.  相似文献   

16.
Paleoenvironmental reconstruction combining data from diatom, pollen, macrophytic, and archaeological analyses had not been attempted previously for coastal Peru. We analyzed two radiocarbon-dated sediment cores extracted from the “sacred” Urpi Kocha Lagoon at the pre-Hispanic religious center of Pachacamac (ca. AD 350-1533), near Lima, to characterize the paleoenvironment of the site. The data reveal an environmental history characterized by alternating periods of severe drought and catastrophic flood. Recurrent pulses with distinctive sediment, diatom, pollen, and macrophytic characteristics reflecting variations in water depth, substrate, turbidity and salinity, usually contain a thick basal sandy storm deposit overlain by thin organic accumulations of peat, gyttja, and snails. The most intense of these disturbance pulses, when correlated with pollen, plant macrofossils, radiocarbon dates, and regional proxy data, provide local evidence of four major floods associated with sustained, catastrophic El Niño events, tsunamis and/or severe storms in the Andean highlands over the last 2000 years.  相似文献   

17.
This paper presents a series of new single-grain optically stimulated luminescence (OSL) ages for the Still Bay at Blombos Cave, South Africa, and compares them to previously published OSL, thermoluminescence (TL) and electron-spin resonance (ESR) ages for this site. Details are provided about the measurement and analytical procedures, including a discussion of the characteristics of the OSL signals of individual quartz grains. This forms the basis for further investigations into the sensitivity of the equivalent dose (De) estimates to a range of different analytical approaches, including changes in the size of the test dose, the choice of signal integration interval, the subtraction of an appropriate background, and isolation of the most light-sensitive (‘fast’) component of quartz OSL. We also report the results of an inter-operator test of De determination using seven new samples from Blombos Cave, and demonstrate the reproducibility of results obtained for two samples that had been dated previously at another laboratory and were measured and analysed again in this study. Together, these tests validate the robustness of the Blombos Cave single-grain OSL age estimates to a variety of alternative OSL dating procedures. We have incorporated, for the first time, these ages for Blombos Cave into a data set of all single-grain OSL ages for Still Bay and Howieson's Poort sites across southern Africa, and have used a statistical model to re-evaluate the timing and duration of the Still Bay industry. We calculate the most plausible start and end dates of the Still Bay as 72.2 ka and 71.3 ka, respectively – amounting to a duration of 0.9 ka – and estimate (with conventional 95% confidence) that this industry began no earlier than 75.5 ka, ended no later than 67.8 ka and lasted no longer than 6.6 ka.  相似文献   

18.
Recent developments in the biopharmaceutical industry in Taiwan, South Korea and China bear witness to the transformation of these states in nurturing an innovation‐based industry. This article argues that the segmentation of the value chain of the biopharmaceutical industry has provided industrializing countries with a window of opportunity. These East Asian states have modified their former catching‐up approaches by establishing a more effective institutional platform that can attract knowledge‐creation players to the industry. Through case studies, the authors show that the Taiwan state's promotion of the biopharmaceutical industry has been based on an incremental approach; existing state policies have been modified to cope with the demands of the industry, which has resulted in the continuation of its SME‐based industrial structure. The methods of the Korean state have been more radical, in that the policies that previously favoured the chaebols have gradually been reoriented toward the promotion of smaller, science‐based firms that now co‐exist alongside the chaebols. Finally, the Chinese state and local governments have sought to promote this innovation‐based industry by building biotech parks. This approach has resulted in a boom in new science firms, which have become increasingly isolated from the flourishing domestic SOE‐led market.  相似文献   

19.
Phosphate fillings of the tunnels made by endolithic micro-organisms in the shells of Early Cambrian molluscs have been observed on phosphatic internal moulds at several sites. The best preserved examples are from the shells of the gastropod Yuwenia bentleyi from the Parara Limestone of South Australia. Three distinct types of borings are found in these shells: long unbranched tunnels that are either about 10 µm or 3 µm in diameter, and short vertical holes. The nature and distribution of the borings suggest that they were made by photosynthetic algae rather than fungi.  相似文献   

20.
周一汉毛织品的染色工艺探讨   总被引:1,自引:1,他引:0  
为探讨1985年新疆且末县扎洪鲁克墓群和洛浦山普拉墓群出土的一批周一汉毛染织品的染色工艺,用能量色散x射线荧光仪和色度仪对这批毛染织品分别进行了元素分析和反射光谱的测定。结果表明,这批毛染品均使用植物染料染色,分别采用四种染色工艺:直接染色、媒染染色、复染染色和套染染色。其中,蓝色毛织品为直接染色;红色毛织品采用了媒染、复染工艺,绿色毛织品由蓝色与黄色套染而成。进一步的研究表明,红色毛织品是用铝盐作媒染剂染色而成,铝盐含量与毛织品的色度呈相关性。说明能量色散X射线荧光分析仪和色度仪的使用是分析古代毛染品染色工艺的有效手段。  相似文献   

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