Forensic geology in serious crime investigation

CSI, Silent Witness , and a host of other recent television dramas have highlighted the role of science in serious crime investigation and detection. Although many 'real' forensic scientists wince at the media portrayal of their discipline, the programmes have led to a wider understanding of the role of different branches of science in criminal investigations. This is not always a good thing, as 'career' or 'professional' criminals will work very hard at being forensically aware to avoid detection, hence any credible forensic scientist might want to be at best a little reticent as to what they do and how they do it. However, in the UK court system evidence presented by the Prosecution team has to be disclosed to the defence and to be open to challenge in court. This article aims to show, in the broadest of terms, how geology is becoming used increasingly in the detection of serious crime.     

Marine geology at the World Court

Huge areas of the world's seafloor are being carved up among the nations, ignoring scientific knowledge of the geology, geophysics and geomorphology of the seabed.     

宝马博览会观感

１宝马博览会简介和印象“Ｂａｕｍａ９８博览会”于１９９８年３月３０日～４月５日在德国慕尼黑举行。宝马博览会每三年举行一次。本届是第２５届国际施工机械、建筑材料、施工车辆及设备博览会。这次博览会是在郊区新建的贸易中心进行。新贸易中心一期工程全部完成,包...     

论国际性珠宝首饰展览会的会展营销策略

研究国际性珠宝首饰展览会的会展营销策略对我国珠宝首饰展览会的提高与发展具有重要意义。通过实地考察和资料收集,运用营销学的知识总结了国际性珠宝首饰展览会的会展营销要素,并结合会展学的知识从规划展区、招揽客户、开展公关活动和管理客户关系等方面分析了其会展营销策略,旨在为国内珠宝首饰展览组织机构更好地举办珠宝首饰展览会提供一些参考。     

Civil engineering meets geology: at the Panama Canal

The Panama Canal ranks high among the world's greatest feats of civil engineering. The sheer scales of its ground excavations, its concrete structures and its economic significance are truly spectacular. It is also remarkable for the geology of the massive landslides that developed within its Culebra Cut.     

板桥学校液化带工程地质条件及液化土层特性

砂土液化是地震主要次生地质灾害之一。在512汶川地震中,德阳等地发生较大面积砂土液化现象。为详细了解液化带工程地质基本特征,选择板桥学校液化带进行详细液化震害调查、钻探和现场试验。结果表明:（1）液化震害典型,主要包括喷水冒砂、地表裂缝、侧移和基础下沉等;（2）砾石层是唯一的无粘性土层,砾石层分为性质不同的全新世沉积和更新世沉积两部分,未见砂层分布;（3）液化土层是全新统砾石层,该砾石的颗粒大小分布特征表现为级配不良,并有粒组缺失现象;（4）非液化盖层对喷出物有过滤作用,砂粒等细颗粒容易沿裂缝喷出地表,卵砾石等粗颗粒受阻留在土层中,导致喷出物为砂土。     

国际水文科学研究的新进展

在介绍第七届国际水文科学大会关注热点问题的基础上,总结了近4年来国际水文科学研究的新进展,主要包括：无资料流域水文预测,不确定性、非线性和尺度问题,生态水文学,水文模型及资料获取与参数识别,气候变化的水文响应,水资源可持续利用,城市水文水资源,同位素技术和遥感技术在水文学中应用;提出未来水文学研究的展望。     

Cretaceous–Tertiary geology of the Gangdese Arc in the Linzhou area, southern Tibet

Knowledge of the Cretaceous–Tertiary history of upper crustal shortening and magmatism in Tibet is fundamental to placing constraints on when and how the Tibetan plateau formed. In the Lhasa terrane of southern Tibet, the widely exposed angular unconformity beneath uppermost Cretaceous–lower Tertiary volcanic-bearing strata of the Linzizong Formation provides an excellent geologic and time marker to distinguish between deformation that occurred before vs. during the Indo-Asian collision. In the Linzhou area, located  30 km north of the city of Lhasa, a > 3-km-thick section of the Linzizong Formation lies unconformably on Cretaceous and older rocks that were shortened by both northward- and southward-verging structures during the Late Cretaceous. The Linzizong Formation dips northward in the footwall of a north-dipping thrust system that involves Triassic–Jurassic strata and a granite intrusion in the hanging wall. U–Pb zircon geochronologic studies show that the Linzizong Formation ranges in age from 69 Ma to at least 47 Ma and that the hanging wall granite intrusion crystallized at  52 Ma, coeval with dike emplacement into footwall Cretaceous strata. ⁴⁰Ar/³⁹Ar thermochronologic studies suggest slow cooling of the granite between 49 and 42 Ma, followed by an episode of accelerated cooling to upper crustal levels beginning at  42 Ma. The onset of rapid cooling was coeval with the cessation of voluminous arc magmatism in southern Tibet and is interpreted be a consequence of either (1) Tertiary thrusting in this region or (2) regional rock uplift and erosion following removal of overthickened Gangdese arc lower crust and upper mantle or break-off of the Neo-Tethyan oceanic slab.     

全球地质学复兴：我们正进入“人类幻”——第32届国际地质大会环境地质述评

概要介绍了第32届国际地质大会的议题概况。7个大会报告中与环境地质问题相关的竟有6个,反映以人类与地球相互作用为中心的研究已成为地质学家们不得不关注的主题。重点介绍了环境地质方面的几个重要议题：气候与地质环境、地质灾害风险评估、城市化与城市地质、地下水资源与环境、地质环境标识。阐明了关于全球地质学复兴的几点思考：人类活动已成为一种地质营力、地质工作者应成为管理地球的主力军、重在预测人类的未来、地质环境与地球环境、地球系统与地球问题。