广东“南澳Ⅰ号”明代沉船出水铜器腐蚀产物分析

由于海水环境中含有大量氯化物,海洋出水铜器在出水前已发生腐蚀,生成铜的氧化物及氯化物等。本文以广东"南澳Ⅰ号"明代沉船出水的22件铜器残片为研究对象,运用X-射线荧光仪(XRF)、X-射线衍射仪(XRD)和扫描电镜与能谱仪(SEM-EDS)等分析其腐蚀产物和矿物组成,结果表明腐蚀产物主要为铜的碱式氯化物,如Cu2(OH)3Cl和Cu(OH)Cl等,与国外已有研究成果类似,但Cu(OH)Cl在国外海洋出水铜器腐蚀产物中并不常见。     

Exploring the vertical: science and sociality in the field among cavers in Venezuela

Recent scholarship on vertical geographies has lead to a critical reexamination of the relationship between space and power. In this paper, I develop a vertical geographies approach in an unexplored context and with a less tested method: that of cave explorers and scientists in the field in Venezuela, from an ethnographic perspective. Ethnographic analysis of exploration in practice, viewed in relation to a multi-dimensional environment and the social dynamics, bodies, and technologies involved in traversing it, illustrates the ways vertical geographies are constructed and experienced. For the Venezuelan Speleological Society, a group dedicated to cave exploration and science since 1967, examining these geographies highlights culturally specific ways the tension between sports and science in speleology play out and how new members are socialized in the field. Specifically, attention to verticality highlights the role that age, masculinist heroics, and other embodied dimensions play in the construction of speleological geographies. More broadly, an ethnographic focus on exploration, with humans probing the earth's sinuous contours, guards against thinking of verticality abstractly—doing so risks simplifying and even misrepresenting multi-dimensional and processual engagements among humans, their technologies, and the environment.     

Oil Exploration in Russia: Prospects for Reforming a Crucial Sector

Two seasoned observers of the Russian oil industry analyze the country's policy response to developments in its mineral resources base (often perceived as an exploration crisis), with a focus on oil. The authors review and discuss trends in exploration (including its organization and efficiency), recent developments in its financing, and the reorganization of exploration activity. The evolution of Russia's licensing system is presented, drawing attention to changes that have affected incentives, risks, and barriers to potential resource users, both Russian and foreign. Also identified are conflicts between the objectives of resource managers and broader political goals and interests. Journal of Economic Literature, Classification Numbers: L710, Q310, Q380, Q410. 4 figures, 40 references.     

The first fossil sea turtles (Testudines: Cheloniidae) from the Cenozoic of Australia

An isolated dentary and costal identified as cf. Pacifichelys and Cheloniidae indet., respectively, are described from the upper Miocene–lower Pliocene Black Rock Sandstone of Beaumaris, Victoria, Australia. These remains represent the first fossil evidence of sea turtles from the Cenozoic of Australia. Neither of the fossils can be referred to living genera, indicating that extinct cheloniids occurred in southeast Australian coastal waters for at least part of the late Neogene. Thus, the taxonomic composition of the current sea turtle fauna of Australia was apparently established within the last five to six million years.     

Who goes there? Accounting for gender in the urge to explore abandoned military bunkers

This article enquires into the motivations of ‘bunkerologists’ – a term coined for analytic convenience by the author to describe those who research, explore and survey twentieth century military bunkers as a hobby. Specifically, it considers the gendered dimension of this predominantly male pastime. In doing so, the article examines the role of a range of cultural influences, including signification of militarism, inter-generational initiation and remembrance around themes of defence and labour, human-technology relations, conquest, and hermitic escapism. These factors all appear to have roles to play in disposing individuals towards participation in this practice. The analysis finds the source of many of these influences within a particular mode of English male socialisation, and masculinities related to it, prevalent in the late twentieth century. The analysis presented is also grounded in an auto-ethnographic exploration of the biographical roots of the author's own choice of this research topic and the effect of the research upon him and his family. Whilst the subject matter of the study may be regarded as somewhat arcane, the analysis of the role of socialisation within routes to participation in this predominantly masculine pastime may help to illuminate the motivational frameworks of other rarely studied, and seemingly introverted, ‘male’ hobbies such as train spotting, stamp collecting and sport fishing (angling).     

Reburial and Analyses of Archaeological Remains in the Marine Environment — Investigations into the Effects on Metals

Abstract

The treatment and long-term storage of recovered cultural material from underwater heritage sites is becoming less cost effective, and reburial of archaeological sites and the associated artefacts in the marine environment is becoming increasingly common practice in managing the submerged cultural resource. Following recent large-scale underwater archaeological excavations in Marstrand harbour, Sweden, the majority of recovered finds were reburied in defined trenches in the harbour sediment. Subsequently, the Studio of the Western Sweden Conservators in conjunction with the Bohus County Museum initiated a fifty-year research project to evaluate reburial as an appropriate method of preserving waterlogged archaeological artefacts in the long term. The research project, entitled ‘Reburial and Analyses of Archaeological Remains’, was launched in 2002 and consists of six sub-projects. The main aims of these sub-projects are to analyse the extent of deterioration of the most common material types found on underwater archaeological sites, assess the stability of packing and marking materials used in archaeological documentation, and monitor the reburial environment.

The aim of the metals sub-project is to investigate the short- to long-term corrosion behaviour of metals buried in the marine environment by examining the deterioration of reburied and exposed modern metal coupons and eventually compare these results to the analysis of actual shipwreck artefacts. The environmental monitoring sub-project is designed to complement the other sub-projects by assessing the physico-chemical changes occurring in the reburial environment over time and the effect on the deterioration of the different reburied material types. In comparing the results obtained over the past seven years from both the metals and monitoring sub-projects, it should be possible to more accurately evaluate the effectiveness of reburial as a long-term in situ preservation strategy for metallic archaeological remains.     

Historical Climatology and coastal change associated with the ‘Great Storm’ of January 2005, South Uist and Benbecula,Scottish Outer Hebrides

Abstract

This paper describes some of the changes that affected the coastlines of South Uist and Benbecula following the ‘Great Storm’ of 11 January 2005. The paper considers historical changes in patterns of winter storminess and addresses the issue of whether or not there has been a recent increase in regional storminess, manifested partly by this particular storm. The paper concludes on the basis of available Greenland ice core chemistry data and historical climate data, together with recent meteorological data, that no such increase has taken place. This surprising conclusion is further discussed in relation to current thinking on the nature of recent climate change.     

‘Taken captive by the mystery of the Great River’: towards an historical geography of British geography and Atlantic slavery

By examining the case of James MacQueen (1778–1870), this paper initiates a research agenda that contributes to what David N. Livingstone has argued remains the most pressing task for historians of geography: to write ‘the historical geography of geography’. Born in Scotland in 1778, MacQueen was one of the many ‘arm-chair’ geographers whose efforts at synthesising contemporary and historical sources were a significant feature of the encounter between Europe and the rest of the world. Indeed, although he never visited Africa, his speculations about the course and termination of the River Niger turned out to be broadly correct. What makes MacQueen a particularly significant figure was the original source of his theory: enslaved Africans in a Caribbean plantation-colony. In this light, a remark that MacQueen's imagination was ‘taken captive by the mystery of the Great River’ carries a dark double-meaning, because ‘captive’ knowledge was the very source of MacQueen's interest in African geography. Beginning with MacQueen's time in Grenada, the paper explores a series of personal relations, textual traces and West African ethno-histories to reveal how his geographical knowledge and expertise were bound up with Atlantic slavery. This shows not only how the colonial economy, centred on the Caribbean, underwrote the production of geographical knowledge about Africa, but also how British geographical discourse and practice might be probed for traces of Atlantic slavery and enslaved African lives. More generally, the case of James MacQueen illuminates a broader field of relationships between Atlantic slavery, West African exploration, and the development of modern British geography in the late eighteenth and first half of the nineteenth centuries. Examining these relationships is key to writing a ‘historical geography of British geography and Atlantic slavery’ and contributes to postcolonial histories of the discipline by revealing the tangled relationships that bound geography and slavery, knowledge and subjugation, that which ‘captivates’ and those held ‘captive’.     

Economic development,marine protected areas and gendered access to fishing resources in a Polynesian lagoon

This study examines the potential socio-spatial impacts of a new series of marine protected areas (MPAs) on fishers in Moorea, French Polynesia. The establishment of the MPAs is contextualized within recent and historical processes of economic development and theories of women in development and gender, culture and development. Seventy adults from three neighborhoods in Moorea were interviewed. Analysis of the data provides new information about the characteristics of fishing in Moorea. Unlike most fishing cultures and communities throughout the Pacific Islands, men and women in Moorea have similar, as opposed to segregated, spatial patterns of fishing activities and fishing methods. The study also points out the potential negative impacts of the MPAs on both men and women, particularly younger and lower-income fishers.     

20世纪50年代中国社会主义探索中的矛盾及其逆转之原因

中国20世纪50年代中期对社会主义道路的探索从具有社会主义本质特征的制度层面来看,集中体现于陈云在中共八大发言中提出的“三个主体、三个补充”。由于八大仍把消灭资本家所有制和个体劳动者所有制的残余规定为党要继续实现的任务,这就使当年的探索没能摆脱苏联模式的框架,探索也因此中断以至逆转。中共十一届三中全会以后是邓小平首先从社会主义模式的角度提出问题,全党才得以摆脱苏联模式的理论和框架的影响,从而逐步摸索和确立了中国特色社会主义的基本框架。