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1.
古铜矿遗址围岩表层有害生物的防治   总被引:3,自引:0,他引:3  
铜绿山古铜矿遗址地处长江中游地区、空气湿度大、围岩表层有害生物成片生长蔓延,对遗址的长期保护造成极大威胁。对此采取了改变遗址的环境条件、喷涂消杀药品的方法,消除了围岩表层有害生物的危害。经过一年半的观察表明该方法是可行的。  相似文献   
2.
During the last restoration of the Fontana di Trevi -Rome (2014–2015), it has been performed a diagnostic investigation to characterize the materials used to build and obtain the colors of the surfaces of some architectural elements of this fountain. According to the restoration teamwork needs, we focussed our efforts on the dome over the central statue of Oceanus, on the bas-relieves on the sides of the dome, and on the cliff where the water flows. Several samples were collected from these elements and therefore, they were subjected to an analytical approach including infrared spectroscopy, optical and scanning electron microscopy. The achieved results indicated the use of red earth pigments on the dome. The same pigment has been revealed on the bas-relieves, although their colors have an additional contribution due to degraded layers. Samples taken from the cliff showed a complex stratigraphy, although a white scialbo has been identified as original layer, testifying the intentions of the authors in term of color rendering. This information was essential for the restores in order to choose the proper intervention procedure for each investigated surface. The research testified the importance of an integrated diagnostic analysis to preserve the original colours of monuments and building.  相似文献   
3.
The mensuration of multi‐elemental concentrations from assorted archaeological materials has always required great care and attention to detail to ensure good‐quality data and their ensuing interpretations. Although most suspect data were generated before the wide use of computers, error‐free data are not still a certainty. This paper presents the geochemical rationale for a proposed chemical data‐assessment process, using a globally dispersed collection of ceramic, sediment and lithic data. It is argued that this process can allow archaeologists and archaeometrists to investigate systematically older and current data sets and, if need be, alter them to the reliable values they were originally intended to include.  相似文献   
4.
Considering recent formulations of geopolitical culture in combination with concerns that environmental change be included in contemporary geopolitical analysis, this paper examines the implicit geopolitical formulations in recent Canadian federal political discourse both in Stephen Harper's Conservative government and the subsequent Liberal administration. Contrasting earth system science ideas about global transformations with Canadian nationalist rhetoric concerning petroleum production and notions of unlimited resource extraction as parts of national identity sharply highlights the contours of Canadian identity. If sustainability is to be taken seriously, the official nationalist formulation will have to be drastically changed, but as the widespread rejection of the LEAP manifesto suggests, such ideas of a sustainable mode of globalization have yet to substantially influence Canadian political discourse, despite the rhetorical support offered to the Paris Agreement on Climate Change by the Liberal government of Justin Trudeau.  相似文献   
5.
Geochemical and isotopic studies have been undertaken to assess the origin of CO2‐rich waters issuing in the northern part of Portugal. These solutions are hot (76°C) to cold (17°C) Na–HCO3 mineral waters. The δ2H and δ18O signatures of the mineral waters reflect the influence of altitude on meteoric recharge. The lack of an 18O‐shift indicates there has been no high temperature water–rock interaction at depth, corroborating the results of several chemical geothermometers (reservoir temperature of about 120°C). The low 14C activity (up to 9.9 pmC) measured in some of the cold CO2‐rich mineral waters (total dissolved inorganic carbon) is incompatible with the presence of 3H (from 1.7 to 4.1 TU) in those waters, which indicates relatively short subsurface circulation times. The δ13C values of CO2 gas and dissolved inorganic carbon range between ?6‰ and ?1‰ versus Vienna‐Peedee Belemnite, indicating that the total carbon in the recharge waters is being diluted by larger quantities of CO2 (14C‐free) introduced from deep‐seated (upper mantle) sources, masking the 14C‐dating values. The differences in the 87Sr/86Sr ratios of the studied thermal and mineral waters seem to be caused by water–rock interaction with different granitic rocks. Chlorine isotope signatures (?0.4‰ < δ37Cl < +0.4‰ versus standard mean ocean chloride) indicate that Cl in these waters could be derived from mixing of a small amount of igneous Cl from leaching of granitic rocks.  相似文献   
6.
本文介绍了李三孤堆楚墓所出青铜器的流散和收藏慵况,回顾了自20世纪30年代初至今学者们对这批楚器的研究历程及成果,并从铭文释读、器物形制、器群主人及其埋葬环境几方面分别阐述了各家之说,最后通过回顾和分析总结出目前这一研究中存在的问题,提出了深入进行这一研究的重要意义,并指出了今后的研究方向。  相似文献   
7.
在西学东渐史上,利玛窦是一个标志性的人物。他不仅在中国用汉语编写《天主实义》和《交友论》,阐释基督教神学和伦理思想,提出对儒佛的独到分析;与徐光启合译《几何原本》前六卷;并多次译绘汉文世界地图,为中国乃至东亚世界首次完整地展示了世界的面貌。该图见之于明确文字记载的自刻、他人翻刻和摹绘版本多达十余种。笔者根据利玛窦世界地图刊刻和传播的实况,将其版本分为《大瀛全图》与《山海舆地图》、《坤舆万国全图》、《两仪玄览图》三个系列和木刻本、彩绘绢本两种形式;并就“地圆说”与地球知识、“五大州”与“万国”的概念、西方人文地理知识点的介绍及其与中国文化的对话等诸多方面,讨论了利氏世界地图中所传送的新知识、新方法和新词汇,指出该图是明清士人理解整个世界的一个重要的窗口。论文还通过熊明遇的《格致草》、熊人霖的《地纬》、王在晋的《海防纂要》以及晚清的《海国图志》和《瀛寰志略》等,分析了利氏世界地图在晚明至晚清二度本土化的过程,指出该地图在晚清西学知识重建过程中所产生的意义。  相似文献   
8.
人地关系研究范型:地域系统实证   总被引:7,自引:0,他引:7  
蔡运龙 《人文地理》1998,13(2):7-13
地域系统的人地关系实证研究发展到现在已涉及众多方面,本文按五大论题展开论述:①环境评价与管理;②环境感知与适应;③自然灾害研究;④气候影响评价;⑤区域可持续发展。  相似文献   
9.
中国封建皇帝封禅略论   总被引:3,自引:0,他引:3  
在祭教合一的封建时代,皇帝举行隆盛的封禅典礼,既是构成皇权存在合理性、合法性的普遍逻辑性法则和终极依据,又是皇位正统和大一统所必须的文化表征.在儒学思想演绎和阐释下的封禅仪式过程和象征意义,不仅是一种政治秩序和制度模式的构建,而且也是一种意识形态和价值观的展示.  相似文献   
10.
We report analytical work undertaken in order to identify the geochemical taphonomy of the osteological collection (human and animal bones) recovered from a 1950s excavation at Katsambas, a small cavity in the marly limestone on the west bank of Kairatos River, Crete. The site had funerary use and yielded material of Neolithic and Minoan age with poor stratigraphical association. Disintegration of provenance labels from bags has introduced further uncertainty about the contexts of recovery. Samples of human and animal bones that macroscopically appear to belong to three taphonomic categories were studied by means of FT-IR spectroscopy, TEM microscopy and REE analysis to explore the taphonomical processes the bones have undergone. Although not novel in palaeontological research the use of REE opens a new path to investigating poorly provenanced osteological collections from old excavations. Such geochemical work offers a proxy to their relative dating through the evaluation of the time span bones have remained in the sediments and their respective taphonomic histories.  相似文献   
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