Production sequences of ostrich eggshell beads and settlement dynamics in the Geelbek Dunes of the Western Cape, South Africa

The archaeological record attests to the significance of ostrich eggs as a valuable resource for the people of the Later Stone Age. People over a broad geographic range used ostrich eggs to provide nourishment, storage and ornamentation. This paper focuses on the production, use and discard of ostrich eggshell beads recovered from open-air sites in the Geelbek Dunes of the Western Cape, South Africa. We present a comprehensive production chain for analyzing the manufacture of beads and introduce the concept of a heuristic production value for evaluating the degree of completion reflected by an assemblage. The pattern of fabrication and the distribution in size allow for a detailed analysis of the beads that points to specific behavioral patterns involved in their production. This analysis yields information about the duration and intensity of site use, as well as the individual members and cultural affinities of the groups who made the beads. We document the intentional use of fire to blacken the majority of the beads as an aesthetic choice. Combined with the results from AMS radiocarbon dating, the majority of the beads from Geelbek provide insight into the socio-economic identity of their manufacturers: small groups of hunter–gatherers who inhabited and used specific locations on the strandveld near Langebaan Lagoon.     

Use-wear analysis of obsidian artifacts from Later Stone Age shell midden sites on the Red Sea Coast of Eritrea,with experimental results

This paper presents results of use-wear study on lithic artifacts from two Later Stone Age sites (Gelalo and Misse) on the Red Sea Coast of Eritrea. The sites produced large quantities of lithic artifacts in association with mollusk shells and ostrich eggshell beads, but it is unclear if all the stone tools were required for bead and mollusk shell processing. The study involved recording of microfracture damage traces in order to infer the use-material and the manner in which the artifacts were used. A large percentage of the analyzed samples from Gelalo and Misse preserve wear patterns suggestive of human use. The diagnostic wear types include: (1) dense step, snap (crushing) and hinge fractures typically confined on the working edges, and (2) feather scars organized in a scalar manner visible on the ventral and dorsal surfaces of the active parts. The observed damage patterns suggest cutting and engraving medium to hard materials. The evidence is incomplete for more generalization about the specific activities carried out at the sites. A brief experimental study involving ostrich eggshell drilling, oak twig sawing and bark scraping, meat slicing, and mollusk shell sawing and drilling was carried out to aid interpretation of wear features observed on the archaeological specimens. Wear traces produced by sawing mollusk shell and oak wood showed close affinity to those observed on the archaeological specimens. The study contributes important information about early Holocene site use on the Red Sea Coast of Eritrea. The close association of used lithic artifacts, symbolic objects (beads) and broken shell remains indicates that the sites were habitation areas.     

Micro-CT investigation of ostrich eggshell beads collected from Locality 12, the Shuidonggou site,China

Ostrich eggshell (OES) beads are an important kind of human ornaments, because their production reflects the development of modern human behavior, thinking ability, and cognitive level. Although the manufacture procedure of OES beads has been reconstructed in some Later Stone Age sites and early Neolithic sites, little information is known about detailed drilling technologies. In this study, synchrotron radiation micro-CT (SR-μCT) was firstly used to scan OES beads to understand microstructure, drilling marks, and perforation shape in a non-destructive mode. In contrast to other method to research drilling technologies, SR-μCT has a unique advantage that it could eliminate the influence of the adhering soils in a perforation in case that they are not easily removed. The results indicate that (1) SR-μCT could differentiate the eggshell species between Struthio camelus and Struthio anderssoni in terms of pore distribution. Compared to other destructive methods, including the anatomical method, DNA and protein analysis, the species identification through SR-μCT is non-destructive and faster; (2) the outer and inner surface of OES could be non-destructively judged according to OES microstructure, which would help infer the drilling direction; and (3) the perforation shape and drilling marks are distinct between the discontinuous twisting drilling and the multi-rotary drilling methods on the basis of replication experiments. According to these criteria, SR-μCT was applied to examine OES beads found in Locality 12 of the Shuidonggou (SDG) site in China, which were probably discarded in 1.1 k yr BP. The results show that most of ancient beads were firstly drilled from inside. According to the perforation shape and drilling marks, both the twisting drilling and the multi-rotary drilling method with different kinds of drill bits were used in working beads. Therefore, the people in SDG site mastered a few drilling technologies in the early Holocene, and the use of the multi-rotary drilling method reflects the technical development of ancient people. Up to our knowledge, it is the earliest known evidence of the application of the multi-rotary drilling method in China. Furthermore, this study will provide a new approach and important reference to understand drilling technologies of much older OES beads in the Later Stone Age or Upper Paleolithic Age.     

Land Snail Shell Beads in the Sub-Saharan Archaeological Record: When,Where, and Why?

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.     

Late Holocene Artifact Patterns and the Introduction of Herding to Semi-Arid Coastal Namaqualand,South Africa

ABSTRACT

Considerable change occurred in the Late Holocene Later Stone Age of Namaqualand, northwestern South Africa. Focusing on stone artifacts, pottery, and ostrich eggshell beads, the cultural sequence for the area is described. Two additions are identified, complicating the traditional model for the introduction of herding into the country. From the mid-Holocene onward, lithic assemblages are based on milky and/or clear quartz and cryptocrystalline silica and initially contain many backed tools with scrapers more common during the first millennium BC. These are hunter-gatherer assemblages. During the final centuries BC, backed bladelet-rich assemblages based on clear quartz appear, with the earliest examples demonstrating typological continuity with the existing assemblages. About 1,500 years ago, expedient assemblages lacking retouch and based on poorer quality quartz appear. The three types co-occur during the last 1,500 years, occasionally in combination with one another. This contrasts strongly with other parts of South Africa where just two distinct assemblage types are identified, suggesting that the hunter-gatherer-herder dichotomy is not universally valid. The artifact patterns between about 200 cal BC and cal AD 500 and the introduction of livestock suggest considerable cultural and social change, heralding the onset of a local Neolithic, but the exact mechanisms remain unclear.     

Prehistoric shell beads on the Georgia coast

ABSTRACT

The prehistoric peoples living along the Georgia coast fabricated and used shell beads for millennia. Out of a number of mollusk species inhabiting the region, only a few were selected for the fabrication of beads. The knobbed whelk (Busycon carica) was the most common species used, and it represents the most common whelk found in Atlantic coastal waters. The lightning whelk (Busycon sinistrum), the second most common whelk in the region, was occasionally used in the production of beads. Small numbers of beads were made from marginella and olive shells and, rarely, from bivalve species. Small beads were manufactured from the body whorl of whelks, while larger beads were fabricated from whelk collumella. Shell beads appear in small quantities in Late Archaic period contexts, and then almost disappear during the Woodland period. Beads reappear in quantities at about AD 800 in the Early Mississippian period. More shell beads have been recovered from Mississippian period archaeological contexts along the northern Georgia coast than along the southern coast, reflective of cultural differences between these two geographic areas in the post-Woodland period era.     

The context,form and significance of the MSA engraved ostrich eggshell collection from Diepkloof Rock Shelter,Western Cape,South Africa

Broken ostrich eggshells are commonly found in Middle Stone Age sites of southern Africa, presumably collected for food consumption, and later used as artefacts. At Diepkloof Rock Shelter, Middle Stone Age inhabitants used ostrich eggshells as a medium to convey abstract depictions. Since 1998, excavations at Diepkloof have recovered 408 engraved pieces of ostrich eggshells. The study of these shows that Diepkloof inhabitants applied a restricted set of geometric engraving patterns, with the dominance of 2 main motifs, one using a hatched band and the other sub-parallel to converging lines. These motifs coexisted, but shifted in frequency toward the latter through time. Together with evidence that ostrich eggshells were used as containers, these patterns support the hypothesis that engravings were made with respect to clear but flexible social conventions and were part of a complex system of visual and symbolic communication. Since our last report (Texier et al., 2010), a few engraved pieces have been found in lower stratigraphic units, expanding substantially the time-range of the engraving practice on ostrich eggshells at Diepkloof. The earliest engravings appear at the end of the Early Howiesons Poort phase, but become numerous only during the Intermediate and Late phases of the Howiesons Poort. The collection from Diepkloof is presently unique and likely underlines the existence of regional traditions within the Howiesons Poort. Interestingly, and significantly in our view, the engraving disappears at the same time as the Howiesons Poort technology. We argue that this disappearance may reflect a modification in the way late Middle Stone Age inhabitants interacted with one another.     

Late Pleistocene Techno-traditions in Southern Africa: A Review of the Still Bay and Howiesons Poort, c. 75–59?ka

The focus of this paper is on two remarkable techno-traditions in the prehistory of southern Africa, the c. 75?C71?ka Still Bay and the c. 65?C59?ka Howiesons Poort. These were periods when the technological and behavioural repertoire of early Homo sapiens expanded rapidly to include novel technologies such as heat treatment of lithic materials, pressure flaking of stone points, manufacture of complex armatures including the bow and arrow, and the production of symbolic artefacts including shell beads and engraved ochre, bone and ostrich eggshell. In this paper I first review briefly the historical background relating to the recognition of these techno-traditions; second, concentrate on the archaeological sites known to contain these assemblages within southern Africa; and third, discuss aspects of the precocious material culture that appears during these phases.     

NEW DATA ON THE TECHNOLOGY OF FAIENCE PRODUCTION IN CENTRAL EUROPE IN THE EARLY BRONZE AGE

New data on faience production technologies in central Europe come from an analysis of 12 faience beads from an Early Bronze Age cemetery in Poland. The beads were tested with the EPMA method. Altogether 65 measurements were made. In terms of morphology, the artifacts are all the same, but they differ in microstructure and chemical composition. For some a mixed alkali flux was used, for others soda-rich plant ashes. Even so, all of the beads seem to have been made from local raw materials in central Europe (soda-rich plant ashes could have come from plants growing near one of the mainland salt sources, which are frequent, for example, in south-eastern Poland).     

The Production of Lead–Tin Yellow at Merovingian Schleitheim (Switzerland)*

A Merovingian crucible fragment, with internally adhering yellow glass, and yellow glass beads of the same region and period were investigated by non‐destructive XRF, optical microscopy and SEM‐EDS. Although the microstructure and chemical composition of the yellow pigment (lead–tin yellow type II, ‘PbSnO₃’) are almost identical in both the beads and the crucible, in the latter the pigment occurs in a much higher concentration. However, the glass base in the beads and the crucible is very different, indicating that the beads were not manufactured directly from the crucible. Instead, the crucible most likely served to produce lead–tin yellow, which was subsequently mixed elsewhere with a colourless soda–lime glass to produce yellow glass beads.     

The glass beads of Kampai Island,Sumatra

Pulau Kampai is the name of a small island on the east coast of Sumatra and also the name of a village on this island. Excavations conducted at Pulau Kampai in the mid-1970s yielded glass beads likely manufactured in India. More glass beads dating from the 11th to the 14th c. AD were found during excavations undertaken more recently. Those beads were analyzed using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Results show that the vast majority of the beads were likely imported from South Asia. Trace element signatures point toward two production areas: western India for most of the beads and northeastern India for a few high copper orange and red beads. A small number of beads have a very different composition resulting from the use of soda plant ash and a low alumina silica source indicating a possible Middle-Eastern provenance. A comparison with data published elsewhere indicates a similarity with material found in Egypt, dating from the 13th to the 15th c. AD suggesting that those beads might have reached the island during the later phases of the occupation period and might have transited through Egypt. It is uncertain where those beads were manufactured within the Middle-East. A comparison is provided with the glass beads from the site of Kampung Sungai Mas (9th to the 11th c. AD) located in Malaysia, one of the only “late” sites in the area that was studied recently using LA-ICP-MS.     

Dating North Asian surface assemblages with ostrich eggshell: implications for palaeoecology and extirpation

East Asian ostrich (Struthio anderssoni Lowe) was thought to have become extinct sometime in the Late Pleistocene. Petroglyphs portray ostrich with Pleistocene animals, and ostrich eggshell (OES) fragments and ornaments from Holocene sites were considered to be older fossils. Here we summarize previous radiometric dates for ostrich eggshell (OES) and present 15 new calibrated accelerator mass spectrometry (AMS) dates, indicating that ostrich survived in Mongolia and northern China until at least 8.9 ka BP. The dates in our sample population suggest a correlation between Struthio and warm steppe environments, with extirpation probably related to essential changes in Holocene steppe ecosystems including human expansion. This study assesses the usefulness of Asian OES for archaeological dating by AMS, constrains the date of Asian ostrich extirpation, and investigates palaeoenvironmental implications of ostrich survival and extinction.     

European Trade in Malawi: The Glass Bead Evidence

In most African contexts, glass beads are evidence of direct and indirect exchanges between communities and are often useful chronological markers. Their analysis contributes to a better understanding of the social relationships between ancient societies. Over the last decade, the archaeometric analysis of glass beads has gained ground in Sub-Saharan Africa, but large regions across southeastern Africa have remained underexplored. Glass beads excavated from the Hora 1, Hora 5, and Mazinga 1 sites in the Kasitu Valley of the Mzimba District of northern Malawi were analyzed using laser ablation—inductively coupled plasma—mass spectrometry (LA-ICP- MS). These are granitic rock shelter sites located 40 km from Lake Malawi. They have predominantly Early Holocene and Pleistocene deposits but with a scattering of more recent material at the top. Analysis revealed that most of the beads were from European manufacture with one exception—a bead that has a composition typical of South Asia and that circulated from the fifteenth to the seventeenth century AD. Although Europeans were not present in the region before the second part of the nineteenth century, the presence of European beads testifies to trade directly or indirectly involving Europeans, most likely in association with increased trade in ivory and enslaved persons. The presence of the bead from South Asia and two cowrie beads from a fourth nearby site (Kadawonda 1) that dates to the seventh century AD show that European trade was the most recent manifestation of connections between the hinterland and the coast.

     

Terminal Pleistocene Later Stone Age Human Remains from the Mlambalasi Rock Shelter,Iringa Region,Southern Tanzania

This paper introduces research at the Mlambalasi rock shelter in the Iringa Region of southern Tanzania. The deposits are composed of a historic and Iron Age occupation, a microlithic Holocene Later Stone Age (LSA), and then a macrolithic Late Pleistocene LSA. Middle Stone Age deposits are also present on the slope in front of the rock shelter. Excavations in A.D. 2002, 2006, and 2010 yielded fragmentary human remains as well as pottery, iron, stone tools, faunal bone, and glass and ostrich eggshell beads. Among the human remains, four individuals are present: two adults and a juvenile were found in the same LSA context, and another adult associated with the Iron Age/historic period. The most complete skeleton is an adult of indeterminate sex that was found in situ in an LSA deposit. Charcoal in proximity to the bone was AMS radiocarbon dated to 12,925 cal BC (OxA‐24620), which is consistent with radiocarbon dates on giant land snail shells from above and below the remains. The skeleton exhibits a series of pathological changes such as extensive dental wear and carious lesions, as well as damage most likely caused by termites, post‐mortem. The most striking aspect of this individual is its small size; stature and body mass estimations place it in the range of historic Khoesan from southern Africa. Consequently, this research adds to the discourse regarding the existence of small‐bodied people in the East African LSA. Findings from this new skeletal sample will contribute to studies of human biology and variation in Africa during the terminal Pleistocene and Holocene. Copyright © 2013 John Wiley & Sons, Ltd.     

合浦汉墓出土绿柱石宝石珠饰的科学分析

采用便携式拉曼光谱仪对广西合浦出土的新莽(8—23年)和东汉(25—220年)晚期的宝石珠饰进行了原位无损分析,新发现了一批在外观上极易被误认为各色水晶的绿柱石族矿物(如海蓝宝石和透绿柱石)制作而成的浅蓝色和无色透明珠饰。利用手持式显微镜对绿柱石宝石珠饰的穿孔形状、孔径大小及其内部微痕特征进行了观察分析,参考南亚和东南亚同时期石质珠饰的钻孔工艺及钻具研究成果,认为这批绿柱石珠饰采用了钻石钻头双面对钻钻孔工艺。结合南亚地区宝石资源、出土绿柱石宝石珠饰及其钻孔工艺和加工作坊等情况,认为这批绿柱石宝石珠饰是由南亚经海上丝绸之路输入的舶来品。研究结果为探讨汉代中国南方与南亚和东南亚的经济和文化交流提供了有益信息,有助于提高对古代海上丝绸之路这一贸易网络在传播珍贵物品的认识。     

Excavations at Mlambalasi Rockshelter: a Terminal Pleistocene to Recent Iron Age Record in Southern Tanzania

The Mlambalasi rockshelter in the Iringa Region of southern Tanzania has rich artifactual deposits spanning the Later Stone Age (LSA), Iron Age, and historic periods. Middle Stone Age (MSA) artifacts are also present on the slope in front of the rockshelter. Extensive, systematic excavations in 2006 and 2010 by members of the Iringa Region Archaeological Project (IRAP) illustrate a complex picture of repeated occupations and reuse of the rockshelter during an important time in human history. Direct dates on Achatina shell and ostrich eggshell (OES) beads suggest that the earliest occupation levels excavated at Mlambalasi, which are associated with human burials, are terminal Pleistocene in age. This is exceptional given the rarity of archaeological sites, particularly those with human remains and other preserved organic material, from subtropical Africa between 200,000 and 10,000 years before present. This paper reports on the excavations to date and analysis of artifactual finds from the site. The emerging picture is one of varied, ephemeral use over millennia as diverse human groups were repeatedly attracted to this fixed feature on the landscape.     

History,Chronology and Techno-Typology of the Upper Paleolithic Sequence in the Shuidonggou Area,Northern China

The timing and behavioral markers of the Upper Paleolithic in different parts of the world are of great importance to research on modern human dispersals. The pattern of behavioral developments in the Upper Paleolithic in northern China differs in important ways from the patterns observed in West Eurasia, Africa, and South Asia. Shuidonggou (SDG), a cluster of Paleolithic sites in northern China, contains several of the most important Upper Paleolithic sites in the region. Various localities yield evidence of three major cultural components dated by ¹⁴C, uranium-series, and optically stimulated luminescence (OSL) methods to between roughly 46 ka and 10 ka. The oldest component, blade assemblages with western Eurasian early Upper Paleolithic characteristics, appears to be intrusive from Siberia and/or Mongolia, beginning at least 41 ka (e.g., SDG 1 and SDG 9). Advanced core and flake assemblages may mark the appearance of an indigenous Late Paleolithic of North China beginning at around 33 ka (e.g., SDG 2 and SDG 8). Finally, around 10.5 ka, microblade technology arrived in the area (SDG 12), although we are not sure of its origins at present. Other typical Upper Paleolithic cultural remains, such as bone tools and body decorations, have been found at various localities in the SDG area as well (e.g., ostrich eggshell beads from SDG 2, 7, and 8). Information from this cluster of occupations increases our understanding of cultural variability, adaptation, and demographic dynamics of modern humans in Late Pleistocene northern Asia.

     

Classification of the Amber Beads of the Hungarian Bronze Age

Abstract

Spectroscopic provenance analysis of Hungarian amber artifacts has shown that nearly all of them are of Baltic amber or succinite, which occurs naturally only in northern Europe. The present paper explores the question whether these beads were made in northern Europe and imported into Hungary as finished products, or were made in Hungary from imported raw material.

To this end, 659 extant amber beads of the Bronze Age of Hungary are divided into 17 types by shape and dimensions. The significance of the typology is borne out by striking diachronical patterns: e.g., flattened globular beads (Group III) are virtually limited to the Middle Bronze Age, while truncated bi-conical beads (Group IX) are essentially exclusive to the Late Bronze Age. By comparing Hungarian bead forms of a given period with those of countries to the north, including Denmark and the Baltic States, the classification offers a means by which imported beads may be distinguished from locally made beads.     

Explaining the monopoly in shell-bead production on the Channel Islands: drilling experiments with four lithic raw materials

Significant political and economic developments among the Chumash of southern California were catalyzed in part by the emergence of an intensive, specialist-driven shell-bead industry during the second millennium CE on the Santa Barbara Channel Islands. The production of millions of beads depended in turn on the availability of lithic microdrills of standardized form and materials. Channel Islanders quarried a particular stone type, a blocky Monterey Formation chert, from multiple outcrops situated close to the eastern shores of Santa Cruz Island. Rich archaeological assemblages document the lithic and shell byproducts of these intertwined production systems, each of which endured for several centuries (CE 1150–1819). Islanders invariably chose Island chert for making microdrills: hundreds of thousands of specimens recorded to date are of this material. Furthermore, nearly every microlith in all of Chumash territory (post CE 1150) was produced on the islands; the large populations on the mainland did not participate in microlith making or bead making after CE 1150–1200. We argue that this pattern had its roots not only in the patchiness of key resources and shifting regional social relationships, but also in the physical properties of available raw materials. Here we experimentally assess the properties of Santa Cruz Island chert alongside three important mainland raw materials—Grimes Canyon fused shale, Coso obsidian, and Vandenberg chert—that potentially could have been tapped to make microliths. We test the proposition that Island chert outperforms other lithic materials in drilling efficiency and drill use life. Our experimental results from 108 drilling trials reveal sharp distinctions in performance characteristics across the four materials. We infer that the process by which Islanders became the more-or-less exclusive manufacturers of shell-bead currency in southern California was facilitated by both the efficacy and physical properties of the Island cherts and the propitious locations of the outcrops.     

NEUTRON ACTIVATION ANALYSIS OF SIXTEENTH- AND SEVENTEENTH-CENTURY EUROPEAN BLUE GLASS TRADE BEADS FROM THE EASTERN GREAT LAKES AREA OF NORTH AMERICA*

Sixteenth- and seventeenth-century European blue glass trade beads from aboriginal sites in the eastern Great Lakes area of North America have been analysed non-destructively using low neutron dose instrumental neutron activation analysis, so that the beads could be returned to their keepers. Dark blue (cobalt-coloured) beads are readily separable from turquoise (copper-coloured) beads. Differences in the chemistries of the turquoise blue beads appear to be useful in separating glass beads from the two centuries. Low calcium, sixteenth-century turquoise beads tend to distintegrate by a leaching of the alkali metals.