449 Works

Current use of geological resources under the view of sustainability - examples from the UNESCO Global Geopark Harz . Braunschweiger Land . Ostfalen

Henning Zellmer & Volker Wilde
When it comes to the mining and use of local geological raw materials, a reflexive, sometimes undifferentiated social rejection arises. The ore, hydrocarbon and coal consumption have now been reduced through recycling and the use of alternative energies or have been replaced by imported products. The last open-cast lignite mine in Schöningen was closed in 2016, the last Harz ore mine in Bad Grund in 1992 and the last iron ore mining in the Salzgitter...

Mass movements in Germany - contributions to the landslide susceptibility modeling

Dirk Balzer , Michael Fuchs , Dirk Kuhn & Jewgenij Torizin
The presentation provides an overview about the project “Mass Movements in Germany (MBiD)” jointly implemented by six State Geological Surveys and the Federal Institute for Geosciences and Natural Resources in the period from 2018 to 2020. The objective pursued in this intervention was to review the practical feasibility of the spatial assessment (modeling) of the landslide susceptibility in Germany both at regional and nationwide level. The chosen approach took into consideration the specific framework conditions...

Sustainable mining of sand and gravel in the UNESCO Global Geopark Harz.

Claus Evers & Henning Zellmer
The company Evers und Co GmbH operates two gravel plants in Süpplingen and Uhry / Helmstedt district and thus produces various sands and gravel, topsoil, mineral mixtures and concrete aggregates, among other things. It is also active in the recycling sector, e.g. producing recycled mineral mixtures. An important aspect of sustainability is that the unconsolidated rock for construction work in the region has only short transport routes. This saves massive amounts of CO2. The yield...

Analysis of surface displacements caused by mine flooding for the project FloodRisk with SAR Interferometry, GNSS and Levelling

Markus Even , Malte Westerhaus & Daniel Schröder
After operation of hard coal mines has been terminated in Germany, many of the mines are being flooded. In the project “FloodRisk: Earthquakes, uplift, and long-term liabilities – risk minimization during mine flooding”, the consequences of the rising mine water levels are investigated from a multidisciplinary perspective. Geodetic, geophysical, geomechanical and geological approaches are combined to develop a conceptional model for flooding induced surface displacements and seismicity. Saarland, Ruhr area and Ibbenbüren have been chosen...

Rock slope failures along the Forkastningsfjellet coastline, Svalbard: characteristics and implications for controlling and triggering factors.

Dirk Kuhn , Jewgenij Torizin , Michael Fuchs , Reginald Hermanns , Tim Redfield & Dirk Balzer
Climate warming and the related permafrost degradation are thought to influence slope stability, landscape evolution, and the natural hazard potential in polar- and high mountain regions. In this context, we investigate the coastal range of Forkastningsfjellet, Svalbard, which is affected by rock slope deformations of different magnitudes and age. Based on a detailed multidisciplinary investigation, we discuss the causes, kinematics and timing of rock slide activity. The distinct stair-stepped morphostructural relief of the Forkastningsfjellet ridge...

A key option to transfer geosciences – relate geoheritage to fun

Marie-Luise Frey , Christine Hogefeld , Pascal Schmitz & Klaudia Wolf
Many attempts up to today exist to transfer geosciences to the general public. Some started at the beginning of the 20th century. It is surprising that only since the beginning of the 21st century with the formation of the European Geoparks Network in 2000 and the Global Geoparks Network in 2004, a new, consequent professional way of transfering geosciences was implemented. This includes information, education, geotourism, sustainable development of territories and at sites, e.g. Messel...

Combined Fluorescence Imaging and LA-ICP-MS Trace Element Mapping ofStalagmites: Microfabric identification and interpretation

Jakub Sliwinski & Heather Stoll
Here, we map a series of stalagmites from Asturias, Spain, by laser ablation inductively-coupled-plasma mass spectrometry and confocal laser scanning (fluorescence) microscopy and discuss the origins of trace element and fluorescence variations. Seasonal banding is evident with both methods and may be attributed to lignins/humic acids based on fluorescence absorption and emission characteristics. Some lateral variations in fluorescence present as saw-tooth “spires” and demonstrate disruptions of seasonal banding, corroborated by trace element variations (most prominently...

Preservation of the geological and industrial heritage of a post-mining landscape by the example of the glacial Muskau Arch

Kersten Löwen
The Muskau Arch in the border triangle of Brandenburg-Saxony-Poland is a push moraine that was folded up by the Muskau Glacier during the second Elster surge about 340,000 years ago. In the process, it folded the underlying strata to a depth of approx. 270–290m. It is considered one of the best examples worldwide of large-scale glaciotectonic deformation. As a result of the compression, lignite, glass sands and clays, were pushed to the surface, and a...

Scandium and Rare Earths in Major Rivers in Sweden

Franziska Klimpel & Michael Bau
Scandium (Sc) is often included in the group of rare earths and yttrium (REY), but in contrast to the REY, knowledge on its behaviour in the hydrosphere is rather limited. However, a better understanding of the distribution and behaviour of Sc is important, as its use in industry is expected to grow exponentially in future, which will likely result in an increasing Sc release into the environment. Here, we report and discuss Sc and REY...

Development of a fluid treatment strategy to enable combined raw material and freshwater recovery from geothermal fluids

Valentin Goldberg , Daniel Winter , Fabian Nitschke , Diego Morata , Joachim Koschikowski & Thomas Kohl
The energy transition and the associated need for non-energy, mineral raw materials have prompted the German government to expand research and development activities along the entire value chain. It is well known that the highly mineralized thermal waters that circulate during the extraction of geothermal energy have, in some cases, significant enrichments of economically strategic elements such as lithium, rubidium, antimony or magnesium. The extraction of mineral resources from thermal waters is still challenging in...

Stromatolitic microorganisms in and on top of fluid-escape structures of the 3.2 Ga Moodies Group

Sebastian Reimann , Christoph Heubeck , Martin Homann , Deon Johannes Janse van Rensburg & Michael Wiedenbeck
The global record of early life is only poorly preserved, but has an ark in the 3.2 Ga Moodies Group of the Barberton Greenstone Belt, South Africa and Eswatini. It preserves silicified photosynthetic and sulfate-reducing metabolic signatures in sandstone-dominated, terrestrial to shallow-marine strata. Large fluid-escape structures are common in thick-bedded kerogen-laminated sandstones of (sub-)tidal facies. We document and interpret silicified, massive and laminated carbonate aggregates and beds, both of likely microbial origin, within and on...

Shaping responsible future experts: the need for integrating Geoethics in Geoscience university education

Dominic Hildebrandt
Geoscientific know-how is essential to tackle pressing challenges: climate change, geohazards, energy and raw material supply. However, technical expertise alone – without considering societal dimensions – will not be sufficient to find sustainable solutions to these problems. Geoethics literacy is needed to qualify Geoscientists to work responsibly on complex tasks at the interface to society. Also, Geoethics deals with our own Geoscience philosophy and can therefore help to address current problems in Geoscience academia –...

A new approach for 3d temperatur modelling in areas with sparse data - an example from northern Saxony-Anhalt (Germany)

Jacob Wächter, Christian Olaf Müller, Alexander Malz & Klaus-Jörg Hartmann
Landesamt für Geologie und Bergwesen Sachsen-Anhalt, Germany

Modelling of subsurface temperatures is based on various approaches, which typically focus on interpolation or numerical simulation procedures. Mostly, they are based on few single measurements and do not take into account the geological structure or lithological and thermal conductivity conditions of the subsurface. Herein, we present a new approach for the parameterization and modelling of subsurface temperatures for areas with sparse available data. We used temperature...

European Minerals Inventory as part of the Mineral Intelligence for Europe

Špela Kumelj, Jasna Šinigoj , Duška Rokavec , Andrej Vihtelič , Lisbeth Flindt Jørgensen & David Whitehead
Geological Survey of Slovenia (1); Geological Survey of Denmark and Greenland, Denmark (2)

The geographical coverage of the Minerals Inventory is being extended with data from the West Balkan countries as mineral data from this region represented a gap in the existing mineral inventory. Therefore mineral data from seven South East Europe countries (Serbia, Albania, Bosnia and Herzegovina, Croatia, North Macedonia and Montenegro) were obtained , evaluated and transformed into Inspire compliant common European...

Multiphase mass and heat transfer in fractured high-enthalpy geothermal systems

Yang Wang , Stephan de Hoop, Denis Voskov , David Bruhn & Giovanni Bertotti
TNO Applied Geosciences (1); TNO Advisory Group for Economic Affairs (2); TNO Geomodelling (3); TNO Geo Data and IT (4); TNO Monitoring and Control Services (5); TNO Data Science (6) Multiphase mass and heat transfer are ubiquitous in the subsurface within manifold applications. The presence of fractures magnifies the uncertainty of the heat transfer process, which will significantly impact the dynamic transport process. However, accurate modeling methodologies for thermal high-enthalpy multiphase flow within fractured reservoirs...

Orbital forcing of Triassic megamonsoon activity documented in lacustrinesediments from Ordos Basin, China

Runjian Chu, Huaichun Wu, Rukai Zhu & Qiang Fang
China University of Geosciences (Beijing), China (1); Research Institute of Petroleum Exploration Development, PetroChina, Beijing, China (2)

The “hothouse” Triassic climate provides a key window to study megamonsoon systems. However, high-quality paleoclimate proxy records are rarely reported from the Tethys realm, where the seasonal meridional migration of the intertropical convergence zone (ITCZ) should be the most remarkable. Here, continuous and well-dated proxy records are used to study monsoon activity in the northeastern Tethys from the...

Trace-element characteristics of the Buck Reef Chert (Barberton, S. Africa)

Naomi Soraya Lamers, Kirsten van Zuilen & Pieter Vroon
Vrije Universiteit Amsterdam, The Netherlands

The Buck Reef Chert (BRC) forms the boundary between the Hooggenoeg and Kromberg formations of the Barberton Greenstone Belt (S. Africa). The BRC sequence is characterized by the alternation between black, white, black white, iron-rich and greenish grey cherts. The 900m BARB3 drill core of the Barberton Drilling Project provides an unique opportunity to study parts of the BRC that are weathered up to a depth of 30 meters...

Virtual fieldwork in the Sorbas basin, Betic Cordillera, SE Spain

Liviu Matenco, Meije Sibbel & Hans de Bresser
Utrecht University, The Netherlands

As part of the Earth Sciences curriculum at Utrecht university, first year master degree students get the option to join a Field Research Instruction Geology course in SE Spain. This course focusses on the internal zone of the Betic Cordillera, which is characterized by a spatial alternation of metamorphic ranges and fault-bounded intramontane basins, strongly affected by normal faulting. Every year, several student teams carry out a project in one...

Application of digital media and interactive technologies in popular palaeontology education

Tong Bao, Hongyi Liu, Takashi Ito & Katarzyna S. Walczyńska
(1)School of Ecology, Sun Yat-sen University, Guangzhou, China.; (2)NAQIYI Fossil Studio, Tianjin, China.; (3)Ocean University of China, College of Marine Life Sciences, Qingdao, China.

As an important component of natural science education, popular palaeontology education developed rapidly worldwide. Traditional offline public lectures, guide tours and peripheral products represent the main implementations. With the appearance of new technologies in recent years, new interactive teaching methods have emerged. Especially since the outbreak of COVID-19 at...

Raw Material Potential from Historic Mine Sites

Henrike Sievers , Petr Rambousek , Monica Serra, Antje Wittenberg & Daniel Oliveira
Bundesanstalt für Geowissenschaften und Rohstoffe (BGR), Hannover, Germany (1); Česká geologická služba, prac. Geologická 6, Praha 5–Barrandov, Czech Republic (2); ISPRA - Dipartimento per il Servizio Geologico d'Italia, Roma, Italy (3); Laboratório Nacional de Energia e Geologia, Amadora, Portugal (4)

The raw materials required by the European industry, especially metallic raw materials, are largely imported into the EU. Thus, Europe’s economic and social wellbeing relies on supplies from international sources and depends on secure...

Amelogenesis and tribosphenic molars: patterns and variation.

Ivan Horacek , Pavla Hanouskova & Anna Kallistova
(1) University of California, Santa Barbara, CA (UCSB) Department of Zoology, Charles University, Vinicna 7, Cz 128 44 Prague, Czech Republic; (2) University of California, Santa Barbara, CA (UCSB), USA

The tribosphenic molar presents phylotypic stage of the mammalian dental evolution. A study of its enamel microarchitecture in several clades (Chiroptera, Afrosoricida, Eulipotyphla, Didelphomorhia, Cetartiodactyla) revealed, apart of considerable taxon-specific variation, a set of structural (i-iii) and developmental (iv-x) characteristics common to all: (i)...

New ways to find geoscientific information in Europe. GeoERA GIP-P Search System

Angel Prieto & Margarita Hernández
IGME, Spain

This contribution concerns Neotethys palaeogeography in the Central Internal Hellenides. Neotethys oceanic crust is represented in the Vardar zone of the Hellenides by the ophiolites of the Almopias sub-zone. Contrary to numerous tectonic models in the literature, we show that the Almopias ocean closed in two episodes.

Applications of virtual reality to Geoscience

Claudia Ruiz-Graham
Imaged Reality

Field trips are essential for geologists and engineers to develop interpretation skills and to get a sense of scale. Unfortunately, attendance to field trips has become less frequent due to cost, with only a handful of team members attending a field trip once or twice a year. Sometimes access to key outcrop analogues can be difficult or too hazardous. COVID-19 has made attendance to field trips even more challenging. An alternative solution...

The most ancient platanistid: An insight into the early evolutionary history of the dolphin group

2) Sanchez-Posada (1, 1) Krings (2 & 1) Rössner (2
Department of Earth and Environmental Sciences, Paleontology Geobiology, Ludwig-Maximilians-Universität (1); Staatliche Naturwissenschaftliche Sammlungen Bayerns – Bayerische Staatssammlung für Paläontologie und Geologie (2)

The fossil record of Platanistidae (Indian river dolphins and extinct partially marine relatives, Early Miocene to today) is suggestive of an early radiation of the group reflected in the diversification of the skull morphology, and a wide distribution in the Old World and New World during the Miocene that dropped coincidentally with...

Orbital and glacial/interglacial forcing reflected by integrated environmental magnetic and colorimetric parameters of a loess-palaeosol sequence in the middle Danubian Basin for the last 430 ka

Christian Laag , Christian Zeeden, Ulrich Hambach , Mladjen Jovanovic & Slobodan Marković
Université de Paris, Institut de Physique du Globe de Paris, CNRS, Paris, France (1); Leibniz Institute for Applied Geophysics, Section 5, Hannover, Germany (2); Chair of Geomorphology, University of Bayreuth, Bayreuth, Germany (3); BayCEER, University of Bayreuth, Bayreuth, Germany (4); Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia (5); Serbian Academy of Sciences and Arts, Belgrade, Serbia (6)

Loess-palaeosol sequences (LPSs) are valuable records of Quaternary environmental change especially in the northern...

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Resource Types

  • Text
    449

Affiliations

  • Karlsruhe Institute of Technology
    46
  • Helmholtz Centre Potsdam - GFZ German Research Centre for Geosciences
    33
  • Federal Institute for Geosciences and Natural Resources
    19
  • Technical University of Darmstadt
    12
  • University of Bremen
    11
  • RWTH Aachen University
    10
  • University of Tübingen
    9
  • Utrecht University
    8
  • Ludwig-Maximilians-Universität München
    8
  • GEOMAR Helmholtz Centre for Ocean Research Kiel
    7