Unique marine taphonomy in human skeletal material recovered from the medieval warship Mary Rose

The effect of skeletal exposure in a marine environment is an area of taphonomy that has been little investigated at the microscopic level. Understanding the peri‐mortem and subsequent post mortem history of deposition and/or redeposition is extremely important for event reconstruction and to identify deliberate or accidental redeposition. The material used for this study comes primarily from the Mary Rose shipwreck (a marine mass fatality dated AD 1545), and forensic material recovered from marine, lacustrine and terrestrial contexts is retrospectively referenced. Work presented here outlines a definitive type of marine exposure seen in temperate shallow off‐shore and intertidal marine contexts, and illustrates how it may be differentially identified from terrestrial deposition and exposure. Furthermore, the effects of rapid deposition on skeletal remains have been documented, and results indicate that marine organism fouling activity can be fully inhibited by rapid deposition of sediment. The responsible organism itself remains unidentified, but produces tunnels which are peripheral in their distribution and maintain fixed dimensions and morphology and are here associated with marine exposure. This type of microstructural change is unique and is not found in terrestrial or freshwater contexts. The study demonstrates a taphonomic microstructural change to bone and teeth which may be identified microscopically and interpreted as evidence of marine exposure. Secondarily, the history of depositional exposure between the two main Tudor layers has provided a new level of detail concerning exposure and site formation processes. The earliest Tudor layer formed rapidly over a period of months and contained no evidence of microstructural tunnelling, whereas microstructural tunnelling was seen exclusively in the second Tudor layer, formed over a period of decades, a period during which the ship's hull collapsed and a more open marine environment dominated. Copyright © 2007 John Wiley & Sons, Ltd.     

Age of the final Middle Palaeolithic and Uluzzian levels at Fumane Cave,Northern Italy,using C,ESR, U/Th and thermoluminescence methods

This article presents and discusses the chronological layout of the final Mousterian and Uluzzian levels of Fumane Cave in northern Italy using ¹⁴C, ESR and TL methods. Given its complex sedimentary and cultural succession, Fumane is a key site to assess the Middle–Upper Palaeolithic transition in Southern Europe and to explore Neanderthal behaviour and to compare it with the first Aurignacians. Large ranges defined by the ESR and TL dates cover the radiocarbon ages for units from A11 to A4, respectively, from 42.8 to 32.5 ka BP become progressively younger in agreement with the stratigraphy, despite high dispersions within the same unit. Our estimates using chronometric data seem to support the hypothesis that the sequence may cover almost 10,000 radiocarbon yr and that from comparison with the sedimentological and palaeoecological data, the late Middle Palaeolithic and the early Upper Palaeolithic at Fumane occur in sediments formed under moderately cool to mild climatic conditions correlated to the Hengelo-Interstadial, shifting towards cooler and drier conditions. Finally, comparisons between the Fumane data set and other sites in the North-Adriatic region are discussed.     

Memory,Identity and Aspiration: Early Modern Jewish Maps of the Promised Land

In the sixteenth century Jews began to produce maps showing the Exodus to the Promised Land. My aim in this article is to show that, through unique compositions of written biblical references and pictured symbolism (both Jewish and Christian), maps such as the Mantua map (1560s) and, a century later, the Amsterdam Haggadah [Passover] map (1695) were a means of constructing Jewish cultural memory and identity in the Diaspora and fostering aspiration for a second salvation through a return to Zion. I also explore the Jewish approach towards the biblical land as this was reflected in the maps.     

Computer programmes for the correction of matrix effects in the XRF analysis of glass,ceramics and related silicate systems

The quantitative analysis of glass, ceramics and related silicate systems by means of energy dispersive X-ray fluorescence spectrometry is considered and problems arising from the selective absorption of X-rays in multi-element specimens are discussed. A computer programme written in FORTRAN and based upon a “semi-fundamental parameters” approach to the correction of matrix effects in glass and chemically similar materials is fully described. Model data are provided to enable the programme to be run and tested. An “empirical coefficients” computer programme for the quantitative analysis of silicate systems is outlined and the limitations of this type of programme are pointed out. The importance of adequate sample preparation prior to X-ray spectrometric analysis is stressed.     

迎头色谱法在评价调湿剂性能上的应用

利用迎头色谱脱附曲线,测定了水蒸汽在调湿剂中的扩散系数。结果表明,当清除了载气流速、调湿剂粒径以及色谱柱轴向扩散等众多干扰因素的影响后,由迎头色谱法测得的水蒸汽在调湿剂中的扩散系数值可用于评价调湿剂的响应速度。     

Quantitative analysis of COH fluids synthesized at HP–HT conditions: an optimized methodology to measure volatiles in experimental capsules

The quantitative assessment of COH fluids is crucial in modeling geological processes. The composition of fluids, and in particular their H₂O/CO₂ ratio, can influence the melting temperatures, the location of hydration or carbonation reactions, and the solute transport capability in several rock systems. In the scientific literature, COH fluids speciation has been generally assumed on the basis of thermodynamic calculations using equations of state of simple H₂O–nonpolar gas systems (e.g., H₂O–CO₂–CH₄). Only few authors dealt with the experimental determination of high‐pressure COH fluid species at different conditions, using diverse experimental and analytical approaches (e.g., piston cylinder + capsule piercing + gas chromatography/mass spectrometry; cold seal + silica glass capsules + Raman). In this contribution, we present a new methodology for the synthesis and the analysis of COH fluids in experimental capsules, which allows the quantitative determination of volatiles in the fluid by means of a capsule‐piercing device connected to a quadrupole mass spectrometer. COH fluids are synthesized starting from oxalic acid dihydrate at P = amb and T = 250°C in single capsules heated in a furnace, and at P = 1 GPa and T = 800°C using a piston‐cylinder apparatus and the double‐capsule technique to control the redox conditions employing the rhenium–rhenium oxide oxygen buffer. A quantitative analysis of H₂O, CO₂, CH₄, CO, H₂, O₂, and N₂ along with associated statistical errors is obtained by linear regression of the m/z data of the sample and of standard gas mixtures of known composition. The estimated uncertainties are typically <1% for H₂O and CO₂, and <5% for CO. Our results suggest that the COH fluid speciation is preserved during and after quench, as the experimental data closely mimic the thermodynamic model both in terms of bulk composition and fluid speciation.     

乾隆朝清宫十八罗汉唐卡名相解析

藏、汉两地佛教经典及佛学之传播,直承印度晚出之大乘佛学,但罗汉信仰却在两地佛教中均占一席之地,尤其是于汉藏两地家喻户晓的十六罗汉(后演绎成十八罗汉),不仅与佛和菩萨一样成为信徒崇拜的对象,而且以之为题材的绘塑作品更是广泛流传,及至帝廷内苑亦多有供奉收藏。清乾隆时期为安抚蒙藏势力而极力推崇藏传佛教,此信仰尤以宫中为盛,帝室庋藏、绘制及供奉有大量藏风浓郁的十六或十八罗汉唐卡组画,其名称、图像特征、排列顺序乃至绘画风格等与清官旧藏的内地各派罗汉图相比,同中存异。乾隆帝及藏传佛教大师们在对藏密佛像进行大规模系统化与规范化的同时,也涉及了汉藏两地十分流行的十六、十八罗汉,并在此基础上逐渐形成了具有乾隆时期清宫特色的十八罗汉图像标准。     

GEOGRAPHICAL PATTERNS IN BIOLOGICALLY AVAILABLE STRONTIUM,CARBON AND OXYGEN ISOTOPE SIGNATURES IN PREHISTORIC SW GERMANY*

In order to interpret strontium and oxygen isotope values in Neolithic human skeletons analysed previously, we begin to map the biologically available strontium, carbon and oxygen isotopic signatures of prehistoric southern Germany by analysing tooth enamel of pigs from archaeological sites distributed around the region. The mapping shows a marked upland–lowland difference in biologically available ⁸⁷ Sr/ ⁸⁶ Sr values, ranging between 0.7086 and 0.7103 in the sedimentary lowlands, and from 0.710 to as high as 0.722 in the crystalline uplands of the Odenwald, the Black Forest and the Bavarian Forest. In addition, carbon isotopes in the carbonate fraction of pig enamel were generally about 1–2 more enriched in ¹³ C in the uplands. Despite the expected depletion of ¹⁸ O with altitude, oxygen isotopes in pig enamel showed little correlation with site altitude, although for pig samples not older than the Iron Age there was some geographical correlation withδ¹⁸O patterns in modern precipitation.     

EVALUATION OF BINDER/AGGREGATE RATIOS IN ARCHAEOLOGICAL LIME MORTARS WITH CARBONATE AGGREGATE: A COMPARATIVE ASSESSMENT OF CHEMICAL,MECHANICAL AND MICROSCOPIC APPROACHES*

This paper reports on the comparative evaluation of traditional and innovative methods for the investigation of mortar technology. Preliminary results of various approaches to determining the mix proportions in lime mortars with carbonate aggregate are presented. Quantitative analysis was tested on ad hoc prepared mortars of known composition containing carbonate aggregates of different origin (travertine and Bath limestone). Wet chemical methods, manual disaggregation and Digital Image Analysis of thin sections and cross‐sections stained with Alizarin Red S were tested. The advantages and drawbacks of the different approaches are discussed, and applications to the analysis of archaeological mortars and plasters are highlighted.     

Mothers in the making? Exploring liminality in cyber/space

This paper makes a case for cyberspace and geographical space coexisting simultaneously as an interconnected dyadic cyber/space combining the virtually real and the actually real. Based on empirical evidence from a study examining the role of the Internet in the life of new mothers, we investigate the simultaneity of online/onsite experiences through an exploration of cyberspace as a performative liminal space, one where the women 'tried out' different versions of motherhood. We suggest that liminality, as a concept that can denote both a space and time of 'betweenness', is a useful tool in the virtual geographers 'conceptual handbag' as it enables a more lively understanding of cyberspace. But although cyberspace can result in the production of new selves, these selves have residual attachments to embodied experiences and practices. This suggests that new theorizing about cyber/space must combine a consideration of liminality with everyday corporeality.