Provenance of gravity-flow sandstones from the Upper Jurassic–Lower Cretaceous Farsund Formation,Danish Central Graben,North Sea

Through the Upper Jurassic and Lower Cretaceous gravity-flow sandstones were deposited in the Danish Central Graben. These gravity-flow sandstones were deposited within mudstones of the Farsund Formation which is the main source rock in the area, and they are thus potential oil and gas reservoirs. The petrography and geochemistry of the sandstones show good intra well relations and several local geographical relations, which may indicate that they were derived from multiple locally sourced flows and not merely by one basin-axial flow system. The gravity-flow sandstones deposited in the eastern part of the basin are less mature and richer in, especially, carbonates and albite compared to previously deposited Jurassic sandstones and simultaneously deposited sandstones in the western part of the Danish area. This may indicate a division of the basin in an eastern and a western provenance province. This study addresses the provenance of the gravity-flow sandstones by petrographical and geochemical analyses in order to derive possible shared detrital sources as a means of understanding the transport system(s) of the gravity flows.     

Trace elements migrating from tailings to rock varnish laminated sediments in an old mining region from Nelson,Nevada, USA

The dispersion and influence of soluble and particulate trace elements(TEs) present in the materials from abandoned mines is an imminent problem on terrestrial and aquatic environments.The goal of this research is to provide a broader view of such transport,assessing particle size distribution and TE interactions(e.g.,scavenging) with mine tailings and locally derived sediments transported by water in arid region.Sand grains from wash sediment were collected from a dry ephemeral wash in Nelson,N...     

2006年度地理学基金项目评审及成果分析

文章介绍了国家自然科学基金2006 年度地理学项目受理、评审与资助的总体情况;分析了在研的2003 年和2004 年批准的地理学基金项目执行情况,着重剖析了2003 年批准项目的成果产出数量与水平;阐述了2002 年批准的地理学基金项目取得的突出进展。     

'You Gotta Love This City': The Whitlams and inner Sydney

This analysis of music in cultural geography, in the context of the inner Sydney-based band, The Whitlams, traces the creative links between sounds, 'scenes' and places. Based in Newtown, The Whitlams are associated with political values, evident in the band's name, and social values tied to and opposed to urban changes, such as gentrification, where community is threatened. The band's lyrics emanate from their experiences, challenging commercialisation of city life at different scales and reflecting the anomie of city living, but defending its virtues, whilst also fostering place stereotypes. The audience was similarly inner-city based until the band's recent commercial success, which has challenged The Whitlams' identity and radicalism, and resulted in mainstream appropriation. Though The Whitlams continue to reaffirm their local identity, and local audiences have remained, the popularity and commodification of their music has challenged concepts of shared meaning, the link between bands and their fans, and the connection between music and its place of origin. The Whitlams' music nevertheless remains a means of evoking and sharing a sense of place.     

中国近现代地理学发展脉络研究——基于《地理学报》学术论文的统计分析

自1901年张相文编纂我国近代最早的地理教科书——《初等地理教科书》和《中等本国地理教科书》出版以来,我国近、现代地理学已走过了百年岁月。以《地理学报》为研究对象,对其自创刊以来所有载文进行检索和分类统计。从中发现,中国地理学近百年来在曲折中前进,日益走向繁荣;领域构成从单调到丰富,专业体系日趋完善,地理学的人文化、技术化趋势非常明显;从引进、学习到与世界同步,中国地理学正在完成质的飞跃。地理工作者对祖国的热爱、对地理学的高度责任感和中国社会进步的内在要求是中国地理学不断发展的根本动力。     

海洋动力环境立体监测数据共享服务系统的设计及实现

以福建省海洋动力环境立体监测数据为例,在分析监测数据来源形成特点的基础上,基于分布式数据库、网络地理信息系统(WebGIS)等技术设计了一个海洋立体监测数据的共享服务系统,并详细介绍了共享服务系统采用的数据组织结构、总体框架、业务功能模块以及空间数据发布与服务的实现方法,最后给出典型应用例子的用户界面。     

Geography in Schools

In Australia, geography, studied as a discipline, is generally non-existent in Grades K-6 (approximately ages 5-11 years) and, in some states, this state of affairs extends to Grades 7-10 (12-15 years). In New South Wales (NSW), the geography component has been strengthened in the Grades K-6 curriculum; there are mandatory and optional geography courses in Grades 7-10, and optional geography courses in Grades 11 and 12 (16-17 + years). In this paper, the place of geography in NSW, in the learning area of Studies of Society and Environment, is compared with geography curricula in five countries. In England and Wales, and in Finland, geography is regarded as an essential subject in the school curriculum. In the USA and Japan, attempts are being made to replace generalist social studies courses with disciplines, such as geography, from the humanities and social sciences. And, finally, Hong Kong has been influenced by curriculum developments in England and Wales, as well as in Australia.     

地理系统工程在战区军事地理电子地图集设计中的应用

在论述地理系统工程和电子地图集设计的关系的基础上,探讨了战区军事地理电子地图集的性质、用途和构成体系。     

The Transport Time pdf for a Simple Turbulent Flow

In a turbulent fluid, the time a particle needs to travel from a point source to the observation point, can be considered as a random variable. It is shown that the probability density function (pdf) for this random variable is determined by the Lagrangian particle position pdf. The characteristics of the transport time pdf are discussed for the simple case of a turbulent fluid moving with a constant mean velocity.     

Three-dimensional finite difference model for transport of conservative pollutants

A three-dimensional finite difference transport model appropriate for the coastal environment is developed for the solution of the three-dimensional convection-diffusion equation. A higher order upwind scheme is used for the convective terms of the convection-diffusion equation, to minimise the numerical diffusion. The validity of the numerical model is verified through five test problems, whose exact solutions are known.