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The main developments during four decades of geostatistical applications on the Witwatersrand-type gold deposits are reviewed and critically compared with a view to highlighting the progress made to date. The basic techniques - from the preliminary borehole valuation of mining properties to the block estimating of ore reserves and foreseeable recoveries are analysed and the prospects for methodological improvements are discussed.
Welcome to physical geography and the fifth edition of Geosystems! We begin this new century with a sense that the world community is responding to global concerns as to the status and conditions of Earth's physical, biological, and chemical systems. The globalization of the world economies seems paralleled by a global scientific inquiry into the state of the environment. Marking this awareness is the second Earth Summit held in 2002 in]oham1esburg, South Africa, with an agenda including climate change, freshwater, and the five Rio Conventions, among other topics. <...>
Welcome to the tenth edition of Geosystems! This edition features updated content, new active learning activities to engage students, and many new photos and illustrations. We continue to build on the success of the first nine editions, as well as the companion texts, Elemental Geosystems, now in its eighth edition; Geosystems, Canadian Edition, fourth edition; and the newest Geosystems Core, first edition. Students and teachers appreciate the systems organization, integration of figures and text, and overall relevance to what is happening to Earth systems in real time. Geosystems continues to tell Earth’s story in studentfriendly language. <...>
Site characterization is a fundamental step towards the proper design, construction and long term performance of all types of geotechnical projects, ranging from foundation, excavation, earth dams, embankments, seismic hazards, environmental issues, tunnels, near and offshore structures. The Fourth International Conference on Site Characterization (ISC’4) was held near the beautiful coastal town of Porto de Galinhas, Pernambuco – Brazil, from September 18-21, 2012, under the responsibility of TC-102/TC-16 on In-Situ Testing of the International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE), the Brazilian Society for Soil Mechanics and Geotechnical Engineering (ABMS), and the Federal University of Pernambuco, Brazil (UFPE). The fourth conference followed the successful series of international conferences held in Atlanta (ISC-1, 1998), Porto (ISC-2, 2004), and Taipei (ISC-3, 2008).
This unique congress brings together the best of what the Geotechnical Engineering Institute and the Structural Engineering Institutes have to offer. In celebration of both Institutes twentieth anniversary we joined together to offer the attendees a great opportunity to exchange knowledge and network with colleges from another engineering institute. The joint congress features a robust technical program of sessions focusing on geotechnical, structural, professional practice, and blended topics. <...>
Technical Committee 204: “Underground Construction in Soft Ground” of the International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE) was first established as TC28 in 1989 to provide a forum for interchange of ideas and discussion amongst representatives from different countries with an active interest in tunnelling and deep excavations in the urban environment. In 1994, under the Chairmanship of Prof. Keiichi Fujita, TC28 organised its first symposium as a satellite event to the ISSMGE International Conference in New Delhi.
Indian Geotechnical Conference (IGC 2018) was held at the National Science Complex of the Indian Institute of Science, Bengaluru, during 13–15 December 2018. This is the annual conference of the Indian Geotechnical Society (IGS), which was established in the year 1948 with the aim to promote cooperation among the engineers, scientists and practitioners for the advancement and dissemination of knowledge in the field of geotechnical engineering. IGC 2018 was a special event since it coincided with the 70 years celebrations of IGS.
Underground metalliferous mining in Australia began in the mid-1840s at the copper and silver–lead mines in and around Kapunda and Burra in South Australia. Mining in the Victorian goldfields following the discovery of gold and the Gold Rush of 1851 was initially alluvial but soon evolved into the underground mining of deep leads and then quartz veins.
Geotechnical engineering is the branch of civil engineering concerned with the engineering behavior of earth materials. Geotechnical engineering is important in civil engineering, but also has applications in military, mining, petroleum and other engineering disciplines that are concerned with construction occurring on the surface or within the ground.
