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NARROW
GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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Africa
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East Africa
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Ethiopia (2)
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North Africa
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Atlas Mountains
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Morocco
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Sahara (1)
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Volta Basin (1)
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Invertebrata
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Vermes (1)
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Primary terms
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North Africa
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Cenozoic
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Quaternary
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Pleistocene
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upper Pleistocene
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Tertiary
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chemical analysis (1)
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protection
Evidence-based guidelines for protective actions and earthquake early warning systems
Abstract Coastal erosion impact on low-lying sandy shorelines represents a worldwide problem, which is particularly felt in various segments of the Portuguese coast where this geomorphological type represents 42% of its total length. Beach nourishment is a viable engineering alternative for shore protection and the assessment of offshore sources of beach-fill material is an essential aspect when implementing this mitigation strategy. The CHIMERA project carried out a multidisciplinary inspection on four segments of the west Portuguese coast to assess their potential as offshore borrow areas for beach nourishment. Altogether, these segments covered an area of c . 35 km 2 , at water depths between 20 and 42 m. They were surveyed using multibeam, sub-bottom profiler, ultra-high resolution multichannel seismics and a set of 126 surface samples and 72 vibrocores (with 3 m long each). To comply with the Portuguese legislation, sand types were assessed by granulometric and chemical analyses for evaluating the quality of sediments in terms of contamination. High-resolution magnetic surveys were conducted to find potential archaeological artefacts. The adopted methodology proved to be adequate to quantify and describe the spatial distribution of useful sediment volumes, supporting the ongoing Integrated Coastal Sediment Strategy for mainland Portugal.
Behavioral responses to earthquake shaking: Video footage analysis of the 2016 Kaikōura earthquake in Wellington, Aotearoa New Zealand
Evolution of a stratigraphic model in a fluvial deltaic wedge: implications for groundwater resource protection in an oil and gas-bearing region in the Upper Cretaceous Dunvegan Formation, Northwest Territories, Canada
Landscape and Ecological Foundations for the Organization of Regional Systems of Special Protected Areas
Validation of the Probabilistic Seismic Hazard Assessment by the Taiwan Earthquake Model through Comparison with Strong Ground Motion Observations
Toppling of a Trona Pinnacles Spire following the M w 5.5 Ridgecrest Aftershock of June 2020
Treatment and Control of Urban Sewage with Excessive Heavy Metals for Ecological Environment Protection
Water Abundance Comprehensive Evaluation of Coal Mine Aquifer Based on Projection Pursuit Model
Short-term seasonal changes of the Dzita beach of Ghana using geographic information system and photogrammetry
Impacts of the 2018 M7.1 Anchorage earthquake on schools
Abstract Geological Survey Ireland is a division of a government department and has typical origins as a geological survey founded to map the nation's natural resources. In recent years it has changed focus from more traditional geological mapping activities and methods to carrying out major projects of national societal value using, and developing, the latest technology. Programmes include one of the world's largest seabed surveys INFOMAR, a national groundwater mapping and protection programme, and modern geophysical and geochemical mapping under its Tellus programme. In addition the Survey has developed a successful geoscience research programme and a business cluster, Geoscience Ireland. By focusing on stakeholder engagement, effective communication of the value of geoscience and maintaining scientific rigour, geological surveys can be as relevant today as when they were founded.
Abstract State Geological Surveys (SGSs) in the USA play vitally important roles, providing sound, unbiased scientific information to each state and the nation. Although implementation of each survey's scientific programme has evolved differently, these organizations are often the principal drivers of economic development, and they consult on policies for protecting land and water, mitigating geologic hazards and promoting sustainable development. The SGSs are represented by the American Association of State Geologists. For more than 110 years, they have partnered with the federal government on important geoscience issues concerning topographic and geologic mapping, water, mineral and energy resources, and geologic hazards. These collaborations continue to develop and expand across multiple specialties, providing critical support to the SGSs. The future role of SGSs will depend on legislative decisions, contributions to research and development and scientific advancement, and ability to leverage support from existing and new collaborations with academia and with federal, state, county and municipal agencies. The Illinois State Geological Survey, one of the largest SGSs, has continually pursued relationships across geoscience sectors to develop a strong multidisciplinary scientific programme. Going forward, all SGSs will be challenged to develop an effective data stewardship programme to communicate with a diverse clientele.
Abstract This paper identifies potential sources, and the key chemical properties, of methane. Guidance is provided on deriving a conceptual site model for methane, utilizing various lines of evidence to inform a robust, scientific, reasoned and logical assessment of associated gas risk. Discussion is provided regarding the legislative context of permanent gas risk assessment for methane, including via qualitative, semi-quantitative and detailed quantitative (including finite element modelling) techniques. Strategies for mitigating risks associated with methane are also outlined, together with the legal context for consideration of methane both in relation to the planning regime and under Part 2A of the Environmental Protection Act 1990.
Formation and Occurrence of Ferromanganese Crusts: Earth's Storehouse for Critical Metals
Deep-Sea Mining: International Regulatory Challenges and Responses
SAINTS AS PROTECTORS AGAINST EARTHQUAKES IN POPULAR CULTURE IN ITALY AND LATIN AMERICA
Radon, Health and Natural Hazards : a signpost for assessment and protection in the 21st century
Abstract This volume draws together the final outputs of the five-year UNESCO / IUGS / IGCP Project 571 and presents new data on radon in the built and natural environments, radon as a diagnostic tool of geophysical phenomena, reflections and recommendations on the future of radon research and a critique of radon's asserted use as a therapy. In recent years there has been an increasing interest in radon from a range of different aspects and we would suggest that radon science has the potential to be a useful tool in understanding our environment as well as its impacts on human health.