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  • 1
    Online Resource
    Online Resource
    Landscapes and Landforms of the Central Sahara (2023)
    Cham :Springer International Publishing :
    Details
    Keywords: Physical geography. ; Earth sciences. ; Environment. ; Geography. ; Physical Geography. ; Earth Sciences. ; Environmental Sciences. ; Regional Geography.
    Description / Table of Contents: Part I. Background -- Geology, climate and landscape evolution -- Quaternary and holocene palaeoclimates of the Sahara -- Plant and animal life in the Sahara -- Human exploitation of the Central Sahara -- Field investigation, remote sensing and geomorphological mapping -- Part II. Landforms and landscapes -- Evidence for past glaciations -- Volcanoes and igneous landforms -- Sandstone massifs -- Solutional landforms and karstic weathering -- Alluvial fans, escarpments, and pediments -- Hamada, serir, and desert pavement -- Sand seas – North -- Sand seas – South and west. .
    Abstract: This book describes the Central Sahara region, bringing together an unprecedented combination of diverse and often historic research published in different languages in order to describe its varied landscapes and landforms. The Central Sahara region consists of Libya, Algeria, Mali, Niger and Chad, countries that share similar landscape histories and common landscape traits, including massifs, sand seas, paleowater features and large depressions. Furthermore, human settlement of this region goes hand-in-hand with climate and environmental changes and landscape evolution during the Holocene and earlier; hence, Central Saharan landscapes and landforms provide valuable insights into landscape–human relationships over long timescales. The book offers a comprehensive yet accessible reference source, drawing on both past and present interdisciplinary research and gathering the insights of authors from many different countries to explore a region that has largely been overlooked in available literature.
    Type of Medium: Online Resource
    Pages: VIII, 235 p. 105 illus., 97 illus. in color. , online resource.
    Edition: 1st ed. 2023.
    ISBN: 9783031471605
    Series Statement: World Geomorphological Landscapes,
    URL: https://doi.org/10.1007/978-3-031-47160-5
    DOI: 10.1007/978-3-031-47160-5
    DDC: 910.02
    Language: English
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  • 2
    Online Resource
    Online Resource
    Selected Studies in Geomorphology, Sedimentology, and Geochemistry : Proceedings of the 3rd Conference of the Arabian Journal of Geosciences (CAJG-3) (2023)
    Cham :Springer Nature Switzerland :
    Details
    Keywords: Geomorphology. ; Soil science. ; Archaeology. ; Earth sciences. ; Geography. ; Oceanography. ; Geomorphology. ; Soil Science. ; Archaeology. ; Earth and Environmental Sciences. ; Ocean Sciences.
    Description / Table of Contents: Section 1: Atmospheric Sciences, Meteorology, Climatology, Oceanography -- Section 2: Biogeochemistry, Geobiology, Geoecology, Geoagronomy -- Section 3: Environmental Earth Sciences and Geohazards -- Section 4: Hydrology, Hydrochemistry, Hydrogeology.
    Abstract: This book is based on the papers accepted for presentation during the 3rd Springer Conference of the Arabian Journal of Geosciences (CAJG-3). The book is of interest to all researchers in the fields of geomorphology, sedimentology, and geochemistry. Papers in the field of geomorphology deal with topics related to fault slip and incision rates, soil science, landslides and debris flows, coastal processes, and geoarcheology and geoheritage. Papers in the field of sedimentology cover research studies in stratigraphy and environmental, tectonic, and diagenetic processes, together with studies focusing on the evolutionary, biostratigraphic, and paleo-environmental significance of paleontology. This section also contains papers on marine geosciences, from molecular proxies related to climate to geophysical surveys. The third set of papers focuses on studies related to geochemistry that are focused on sedimentary geochemistry and mineralogical characterization, magmatic and metamorphic processes and products, and the origin and exploration of mineral deposits. This book resumes the current situation related to the abovementioned topics mainly in the Mediterranean realm and its surroundings. The book is of interest to all researchers, practitioners, and students in the fields of geomorphology, sedimentology, and geochemistry.
    Type of Medium: Online Resource
    Pages: XXIX, 201 p. 152 illus., 136 illus. in color. , online resource.
    Edition: 1st ed. 2023.
    ISBN: 9783031437441
    Series Statement: Advances in Science, Technology & Innovation, IEREK Interdisciplinary Series for Sustainable Development,
    URL: https://doi.org/10.1007/978-3-031-43744-1
    DOI: 10.1007/978-3-031-43744-1
    DDC: 551.41
    Language: English
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  • 3
    Online Resource
    Online Resource
    Selected Studies in Environmental Geosciences and Hydrogeosciences : Proceedings of the 3rd Conference of the Arabian Journal of Geosciences (CAJG-3) (2023)
    Cham :Springer Nature Switzerland :
    Details
    Keywords: Physical geography. ; Water. ; Hydrology. ; Climatology. ; Ecology . ; Earth System Sciences. ; Water. ; Climate Sciences. ; Ecology.
    Description / Table of Contents: Section 1: Atmospheric Sciences, Meteorology, Climatology, Oceanography -- Section 2: Biogeochemistry, Geobiology, Geoecology, Geoagronomy -- Section 3: Environmental Earth Sciences and Geohazards -- Section 4: Hydrology, Hydrochemistry, Hydrogeology.
    Abstract: This book gives a general overview on current research focusing on geoenvironmental issues and challenges in hydrogeosciences in the Middle East and Mediterranean region and surrounding areas. The book is based on the accepted papers for oral/poster presentations at the 3rd Springer Conference of the Arabian Journal of Geosciences (CAJG-3). Studies discuss the latest advances in geoenvironmental and hydrogeosciences from diverse backgrounds including climate change, geoecology, biogeochemistry, water resources management, and environmental monitoring and assessment. It shares insights on how the understanding of ecological, climatological, oceanic, and hydrological processes is the key for improving practices in environment management. It is of interest to scientists, engineers, practitioners, and policymakers in the field of environmental sciences including climatology, oceanography, ecology, biogeochemistry, environmental management, hydrology, hydrogeology, and geosciences in general. In particular, this book is of great value to students and environment-related professionals for further investigations on the state of earth systems.
    Type of Medium: Online Resource
    Pages: XXIX, 271 p. 181 illus., 166 illus. in color. , online resource.
    Edition: 1st ed. 2023.
    ISBN: 9783031438035
    Series Statement: Advances in Science, Technology & Innovation, IEREK Interdisciplinary Series for Sustainable Development,
    URL: https://doi.org/10.1007/978-3-031-43803-5
    DOI: 10.1007/978-3-031-43803-5
    DDC: 550
    Language: English
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  • 4
    Online Resource
    Online Resource
    Selected Studies in Geotechnics, Geo-informatics and Remote Sensing : Proceedings of the 3rd Conference of the Arabian Journal of Geosciences (CAJG-3) (2023)
    Cham :Springer Nature Switzerland :
    Details
    Keywords: Geotechnical engineering. ; Engineering geology. ; Geographic information systems. ; Natural disasters. ; Geotechnical Engineering and Applied Earth Sciences. ; Geoengineering. ; Geographical Information System. ; Natural Hazards.
    Description / Table of Contents: Section 1: Geo-Informatics and Remote Sensing -- Section 1.1: Remote Sensing Tools and Applications -- Section 1.2: Urban Remote Sensing Applications -- Section 1.3: Geospatial Information Systems (GIS), Tools and Applications -- Section 1.4: Land use applications -- Section 1.5: Natural Hazard modelling and risk assessment -- Section 1.5: Natural Hazard modelling and risk assessment -- Section 1.6: Machine learning approaches -- Section 2: Geological Engineering and Geotechnical Engineering -- Section 2.1: Soil and rock mechanics -- Section 2.2: Engineering geology -- Section 2.3: Geo-environmental engineering.
    Abstract: This book contains the best papers accepted for presentation at the 3rd Springer Conference of the Arabian Journal of Geosciences (CAJG-3). The book is divided into three parts to distinguish research studies from the fields of (1) geological and geotechnical engineering, (2) geomechanical studies based on numerical and analytical methods, and (3) geo-informatics and remote sensing. The content of these papers provides new scientific knowledge for further understanding on landslides, new stabilization techniques, importance of geophysics for engineering geology investigations as well as new empirical approaches for easily predicting some physical and hydrogeomechanical properties of geomaterials. It also sheds the light on usage of different remote sensing technologies, mapping techniques in a geographic information systems environment along with some advanced signal processing, and deep learning approaches. The book is of interest to all researchers, practitioners, and students in the fields of geological and mining engineering, geotechnical engineering, hydrogeomechanics, engineering geology, geotechnologies, groundwater and natural hazards, and analyses of some emerging earth processes and environmental variabilities.
    Type of Medium: Online Resource
    Pages: XXVIII, 240 p. 180 illus., 160 illus. in color. , online resource.
    Edition: 1st ed. 2023.
    ISBN: 9783031437595
    Series Statement: Advances in Science, Technology & Innovation, IEREK Interdisciplinary Series for Sustainable Development,
    URL: https://doi.org/10.1007/978-3-031-43759-5
    DOI: 10.1007/978-3-031-43759-5
    DDC: 624.151
    Language: English
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  • 5
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    Periglacial and Paraglacial Processes and Environments (2009)
    London : The Geological Society
    Details
    Description / Table of Contents: Periglacial and paraglacial environments, located outside ice sheet margins but responding to similar climate forcings, are key to identifying climate change effects upon the Earth system. These environments are relicts of cold Earth processes and so are most sensitive to global warming. Changes in the distribution and thickness of permafrost in continental interiors have implications for ecosystem and landscape stability. Periglacial Alpine environments are experiencing increased rockfall and mass movement, leading to rock glacier instability and sediment release to downstream rivers. In turn, these landscape effects impact on natural hazards and human activities in these sensitive and geologically transient environments. Papers in this volume explore some of these interrelated issues in field studies from Europe, North America and Asia. The volume will be of interest to geomorphologists, modellers, environmental managers, planners and engineers working on landscape, climate and environmental change in periglacial and paraglacial areas.
    Pages: Online-Ressource (272 Seiten)
    ISBN: 9781862392816
    URL: http://sp.lyellcollection.org/content/vol320/issue1/
    Language: English
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    E-BOOK
  • 6
    Electronic Resource
    Electronic Resource
    Assessment of temporal changes in coastal sand dune environments using the log-hyperbolic grain-size method (2002)
    Oxford, UK : Blackwell Science Ltd
    Sedimentology 49 (2002), S. 0 
    Details
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Abstract Three cores (〈9 m long) recovered from late Holocene coastal sand dunes in Northumberland, north-eastern England, were examined stratigraphically and dated by the infrared stimulated luminescence (IRSL) method to the time period between the Medieval Warm Period (MWP; ≈ 900–1200 AD) and Little Ice Age (LIA; ≈ 1550–1800 AD). Grain-size variability and CaCO3 content were determined at 10-mm intervals throughout parts of the cores. The sahara computer program was used to plot the log-hyperbolic distribution (LHD) of grain-size spectra from different stratigraphic levels and estimate the LHD's statistical components. Core samples plot variously in the depositional and erosional domains of the hyperbolic chi (χ) vs. xi (ξ) shape triangle, which describes components of sediment sorting. Depositional and erosional phases, discriminated within the LHD's shape triangle, cannot readily be resolved from core stratigraphies or correlated between cores. IRSL dates from single cores show a clustering about the period 1430–1540. Between the dated horizons, dunes accreted at ≈ 0·02–0·05 m year−1, enabling the timing of excursions in χ and ξ to be estimated. These excursions, which can be resolved to the subannual level between the dated horizons, may be related to deposition by episodic storms or storm surges in the North Sea region, which is supported by historical documentary evidence. This innovative use of the LHD method and its derived statistics can be used successfully to describe temporal trends in coastal depositional environments and identify likely storm events in dune sediment records.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-3091.2002.00493.x
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    Paper (German National Licenses)
    Fulltext
  • 7
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    New fjords, new coasts, new landscapes: The geomorphology of paraglacial coasts formed after recent glacier retreat in Brepollen (Hornsund, southern Svalbard) (2021)
    Details
    Publication Date: 2021-09-15
    Description: Changes in the properties and dynamics of tidewater glacier systems are key indicators of the state of Arctic climate and environment. Calving of tidewater glacier fronts is currently the dominant form of ice mass loss and a major contributor to global sea-level rise. An important yet under-studied aspect of this process is transformation of Arctic landscapes, where new lands and coastal systems are revealed due to the recession of marine-terminating ice masses. The evolution of those freshly exposed paraglacial coastal environments is controlled by nearshore marine, coastal and terrestrial geomorphic processes, which rework glacial-derived sediments to create new coastal paraglacial landforms and landscapes. Here, we present the first study of the paraglacial coasts of Brepollen, one of the youngest bays of Svalbard revealed by ice retreat. We describe and classify coastal systems and the variety of landforms (deltas, cliffs, tidal flats, beaches) developed along the shores of Brepollen during the last 100 years. We further discuss the main modes of sediment supply to the coast in different parts of the new bay, highlighting the fast rate of coastal transformation as a paraglacial response to rapid deglaciation in the Arctic. This study provides an exemplar of likely coastal responses to be anticipated in similar tidewater settings under future climate change. © 2020 The Authors. Earth Surface Processes and Landforms published by John Wiley & Sons Ltd
    Keywords: 551.457 ; coastal processes ; landscape change ; paraglacial ; sediment supply ; tidewater glaciers
    Language: English
    Type: article
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    CITATION GEO-LEO
  • 8
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    Periglacial and paraglacial environments: a view from the past into the future (2009)
    In:  Geological Society Special Publication 320: 1-4.
    Details
    Publication Date: 2009-07-27
    Description: Periglacial and paraglacial (cold-climate) environments, located outside the margins of past and present ice sheets but responding to similar climate forcings, are key to identifying climate change effects upon the Earth system (Warburton 2007). These environments are relicts of cold Earth processes and thus are most sensitive to climate change that took place during the last glacial–interglacial transition, and at the present time under enhanced global climate warming. These effects include changes in humidity/aridity and radiation balance, which are most significant in the higher latitudes and at high elevations where periglacial and paraglacial environments are most common and where these environments occur near their climatic limits (Harris 1994; Matsuoka 2001). Variations in humidity and radiation balance have implications for heat budgets, water balance, land surface stability, downslope sediment supply, biodiversity and biogeochemical cycling (e.g. Schneider et al. 1999; Scott et al. 2008). The dynamics of cold-climate environments are, therefore, strongly controlled by external climatic forcing; and hence periglacial and paraglacial processes (and the landforms and sediments that result from them) can be considered as a transient response to the landscape disturbance and land surface instability that accompanies climatic change (Hewitt et al. 2002). This view of a transient landscape responding to environmental disturbance is significant because it underpins influential deterministic and steady-state models in cold-climate science (Church & Slaymaker 1989; André 2003; Warburton 2007). These models predict a rapid increase in sediment yield (which results from land...
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  • 9
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    Mesoscale changes in present-day nearshore surface sediments and bedforms off the north coast of Ireland (2007)
    In:  Geological Society Special Publication 274: 103-116.
    Details
    Publication Date: 2007-10-08
    Description: The distribution and spatial patterns of surficial nearshore sediments off the north coast of Ireland were mapped in detail using three repeated (over one year total duration) dual-frequency (100-500 kHz) side-scan sonar surveys which were ground-truthed using a bucket-grab sediment sampler. In the study area (40 km2, 〈 30 m water depth), three acoustic facies were identified (interpreted as sand, gravel, and bedrock). Planar sand with small sand waves dominates most of the study area; bedforms developed on sand and gravel substrates are located around the margins of a bedrock-floored bathymetric trench. Unusual sea-going gravel ribbons', which morphologically resemble rip current chutes, feed into the trench. Temporal changes in substrate and bedform patterns, mapped from the side-scan sonar data, suggest bedform development and facies boundary migration (by 〉 100 m distance) over the winter season followed by sediment migration back again during the summer. Generally, substrate and bedform mobility is likely to be related to changes in the relative strengths of waves and tides along this exposed, mesotidal coast. More specifically, tidal asymmetry and the formation of a headland leeside eddy can account for scouring of the trench, trench-flank bedform patterns developed in sand, and the formation of the gravel ribbons.
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  • 10
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    The limitations of Quaternary lithostratigraphy: an example from southern Ireland (2009)
    In:  Geological Society Special Publication 320: 165-180.
    Details
    Publication Date: 2009-07-27
    Description: The lithostratigraphy of Quaternary extra-glacial (cold-climate) sediments is described from five sites along the south coast of Ireland. These sediments are compared to a regional-scale lithostratigraphic framework. This comparison enables consideration of the applicability of standard lithostratigraphic principles and practices to the Quaternary record. It is concluded that a strict lithostratigraphic approach is not favourable towards interpreting the age or depositional process/environment of Quaternary sediments, either in isolation or as part of a sedimentary succession. The concepts of time transgression and lateral equivalence are useful interpretive tools that can support lithostratigraphic procedures as applied to the Quaternary record.
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