Geosciences (Switzerland)
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Early Jurassic–Early Cretaceous Calcareous Nannofossil Biostratigraphy and Geochemistry, Northeastern Iraqi Kurdistan: Implications for Paleoclimate and Paleoecological ConditionsEarly Jurassic- to Early Cretaceous-age calcareous nannofossils from the Sarki, Sehkanyian, Sargelu, Naokelekan, Barsarin and Chia Gara formations are investigated for the first time from the Warte area, northeastern Iraqi Kurdistan. A range of isotopic and inorganic geochemical analyses are carried out in order to reconstruct the paleoecological and paleoclimatic conditions during which t... ... hiện toàn bộ
Geosciences (Switzerland) - Tập 12 Số 2 - Trang 94
Historical Monitoring of Shoreline Changes in the Cua Dai Estuary, Central Vietnam Using Multi-Temporal Remote Sensing Data
Geosciences (Switzerland) - Tập 7 Số 3 - Trang 72 - 2017
Cua Dai is one of the major estuarine areas in Central Vietnam that plays a significant role in local maritime transport, fisheries, and tourism activities. This paper presents a study that monitored the shoreline dynamics of the Cua Dai estuary over a period of 50 years (1964–2014) by using field survey data, geographic information systems techniques, and multi-temporal satellite remote sensing i...... hiện toàn bộ
Stable Isotope Systematics of Coalbed Gas during Desorption and ProductionThe stable carbon isotope ratios of coalbed methane (CBM) demonstrate diagnostic changes that systematically vary with production and desorption times. These shifts can provide decisive, predictive information on the behaviour and potential performance of CBM operations. Samples from producing CBM wells show a general depletion in 13C-methane with increasing production times and correspond... ... hiện toàn bộ
Geosciences (Switzerland) - Tập 7 Số 2 - Trang 43
A Validation of ERA5 Reanalysis Data in the Southern Antarctic Peninsula—Ellsworth Land Region, and Its Implications for Ice Core StudiesClimate reanalyses provide key information to calibrate proxy records in regions with scarce direct observations. The climate reanalysis used to perform a proxy calibration should accurately reproduce the local climate variability. Here we present a regional scale evaluation of meteorological parameters using ERA-Interim and ERA5 reanalyses compared to in-situ observations from 13 automati... ... hiện toàn bộ
Geosciences (Switzerland) - Tập 9 Số 7 - Trang 289
Geotechnical Properties of Two Pyroclastic Deposits Involved in Catastrophic Flowslides for Implementation in Early Warning SystemsAir-fall pyroclastic deposits on steep slopes in Campania (Southern Italy) are periodically subjected to rainfall-induced landslides that may evolve into catastrophic flowslides. To protect built-up areas, early warning systems (EWSs) have been implemented which are essentially based on pluviometric thresholds or models unable to accurately monitor the physical phenomena responsible for fl... ... hiện toàn bộ
Geosciences (Switzerland) - Tập 9 Số 1 - Trang 24
Hydrodynamic and Debris-Damming Failure of Bridge Decks and Piers in Steady FlowIn countries with steep rivers, such as Japan and the United States, bridges fail on an annual basis. Bridges on spread footings are especially susceptible to failure by hydrodynamic loading, often exacerbated by debris damming. Here, such failures are investigated via small scale model laboratory experiments and full scale numerical simulations. In the laboratory, lift and drag forces and... ... hiện toàn bộ
Geosciences (Switzerland) - Tập 8 Số 11 - Trang 409
Geochemical Signatures of Paleoclimate Changes in the Sediment Cores from the Gloria and Snorri Drifts (Northwest Atlantic) over the Holocene-Mid PleistoceneA multiproxy study of the sediment cores taken from the Snorri Drift, formed under the influence of the Iceland–Scotland bottom contour current, and from the Gloria Drift, located southward Greenland at the boundary of Irminger and Labrador Seas, was performed. This area undergoes a variable mixing of polar waters with the warm North Atlantic current, whose intensity and direction seemed t... ... hiện toàn bộ
Geosciences (Switzerland) - Tập 9 Số 10 - Trang 432
Morphodynamic Trends of the Ribb River, Ethiopia, Prior to Dam ConstructionThe meandering Ribb River flows in northwest Ethiopia to Lake Tana, the source of the Blue Nile River. The river has already undergone changes due to several human interventions, such as embanking, sand mining, water extraction and lake level regulation for hydropower. At present, a dam and a weir are under construction to store and divert water for irrigation. This will strongly alter bot... ... hiện toàn bộ
Geosciences (Switzerland) - Tập 8 Số 7 - Trang 255
Geotourism at the Natural Park of La Garrotxa Volcanic Zone (Catalonia, Spain): Impact, Viability, and SustainabilityLa Garrotxa Volcanic Zone is a suitable case study to analyze the impact and sustainability of geotourism on a protected volcanic field, as it has allowed the transformation of a poorly known territory into one of the best known and most visited geosites of Catalonia (Spain). The protection of this volcanic area represented the end of legal and illegal quarrying activities that significant... ... hiện toàn bộ
Geosciences (Switzerland) - Tập 8 Số 8 - Trang 295
Geo-Hazard-Based Approach for the Estimation of Seismic Vulnerability and Damage Scenarios of the Old City of Senerchia (Avellino, Italy)The large-scale seismic risk assessment is a crucial point for safeguarding people and planning adequate mitigation plans in urban areas. The current research work aims at analysing a sector of the historic centre of Senerchia, located in the province of Avellino, in order to assess the seismic vulnerability and damage of old masonry building compounds. First, the typological classificatio... ... hiện toàn bộ
Geosciences (Switzerland) - Tập 9 Số 2 - Trang 59
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