535 Works

VerLaPro – a 3D model of the shallow Paleozoic subsurface in the southern Ruhr Area

Dirk Kaufmann , Christian Rakers , Bernd Linder , Stefan Mengede , Karsten Schaefer , Daniel Wagener & Martin Isaac
For decades the Ruhr Area in western Germany was dominated by extensive coal mining. Today, relicts of abandoned mines and the near-surface cavities are a hazard factor, for example at building sites. For an assessment of potential risks, the regional mining authority needs very detailed geological data. The calculation is based on the exact position of the coal seams at the Carboniferous surface and its loose rock covering. To provide this, a very detailed 3D...

Critical Raw Materials for the Energy Transition

Kathryn Goodenough
The global objective of achieving net zero emissions is driving significant decarbonisation of energy and transport, with a shift towards renewable energy sources and electric vehicles. It is now widely recognised that this will drive significant increases in demand for a range of minerals and metals, including lithium, graphite, manganese, nickel and cobalt (used in batteries) and the rare earth elements (used in magnets in motors). There are concerns about the security of supply of...

Significance of epidosite alteration for seafloor sulphide deposits and for fluid fluxes through the oceanic crust

Larryn William Diamond , Samuel Weber , Peter Alt-Epping & Alannah Brett
Epidosites are a prominent type of subseafloor hydrothermal alteration of basalts in ophiolites and Archean greenstone belts, showing an end-member mineral assemblage of epidote + quartz + titanite + Fe-oxide. Epidosites are known to form within crustal-scale upflow zones and their fluids have been proposed to be deep equivalents of ore-forming, black-smoker seafloor vent fluids. Proposals for the mass of fluid per mass of rock (W/R ratio) needed to form epidosites are contradictory, varying from...

The Zagros Mountain Front Flexure in Kurdistan Region of Iraq: Structural style and Late Pleistocene-Holocene Fault Slip Rates Derived from Structural Modeling and Luminescence Dating of River Terraces

Mjahid Zebari , Frank Preusser , Christoph Grützner , Payman Navabpour & Kamil Ustaszewski
The Zagros Mountain Front Flexure (MFF) makes a prominent topographic and structural step along the Zagros Fold-Thrust Belt that accommodates a significant amount of shortening between the Eurasian and Arabian plates. Here, the structural style below the MFF in the Kurdistan Region of Iraq was reconstructed using balanced cross-sections and forward modeling, and Late Pleistocene-Holocene fault-slip rates were calculated across several structures using luminescence dating of river terraces along the Greater Zab River. A balanced...

The Chico Sill Complex, Northeast New Mexico: A case for late-stage phonolite-carbonatite melt immiscibility

Lee S. Potter
The Chico Sill Complex (Northeast New Mexico) is the result of magmatic episodes from ~37 Ma to 20 Ma and produced a diverse and compositionally discontinuous suite of mostly intrusive silica-saturated and silica-undersaturated rocks. The Chico Phonolite was emplaced ~ 26 to 20 Ma in dikes and large sills. Sills of different composition may be stacked 2 and 3 thick. They bear no chemical affinity to the bulk of other rocks in the complex based...

SpannEnD - The crustal stress state of Germany

Steffen Ahlers , Andreas Henk , Tobias Hergert , Karsten Reiter , Birgit Müller , Luisa Röckel , Oliver Heidbach , Sophia Morawietz , Magdalena Scheck-Wenderoth & Denis Anikiev
Information about the recent stress state of the upper crust is important for understanding tectonic processes and for the use of the underground in general. A currently important topic, the search for a radioactive waste deposit, illustrates this relevance, as the crustal stress state is decisive for the short and long-term safety of a possible repository. For example, the integrity of the host rock due to the activation or reactivation of faults and associated fluid...

NFDI4Earth – addressing the digital needs of Earth System Sciences - A

Lars Bernard & Jörg Seegert
NFDI4Earth addresses digital needs of Earth System (ES) Sciences (ESS). ES scientists cooperate in international and interdisciplinary networks with the overarching aim to understand the functioning and interactions within the Earth system and address the multiple challenges of global change. NFDI4Earth is a community-driven process providing researchers with FAIR, coherent, and open access to all relevant ES data, to innovative research data management (RDM) and data science methods. The NFDI4Earth work plan comprises four task...

The Future of Geodata Management - the UK experiences

Karen Hanghøj & Katherine Royse
The fourth industrial revolution is changing how geoscience is carried out, how information is shared and how society and people engage with the world around them and with scientific discovery and data. Geoscience plays a crucial and central role supporting solutions to societal challenges such as the energy transition, understanding (and mitigating) geohazard risks and ensuring environmental sustainability and resilience. From a geodata management point of view this will only be achieved through an end-to-end...

Clay and basic understanding of burial diagenesis

Jūratė Vaznytė & Nicolaas Molenaar
Clay cements can occur pervasively throughout larger volumes of sandstone, thereby affecting the reservoir properties significantly. They affect irreducible water content and pore surface roughness. Moreover, any induced fluid or heat flow, as a consequence of hydrocarbon and geothermal production or CO2 sequestration, may have unwanted effects because of the clay minerals present. The effects will be dependent on the mineralogy, texture and distribution of the clay minerals. Clay minerals replacing detrital components (feldspars and...

Habitability of early Earth: Liquid water under a faint young Sun facilitated by tidal heating due to a closer Moon

René Heller , Jan-Peter Duda , Max Winkler , Joachim Reitner & Laurent Gizon
Carbonatites crystallize from mantle-derived carbonate- and volatile-rich melts that exsolve large amounts of fluids during their ascent through and emplacement into the crust. A global review of available fluid inclusion data for carbonatitic systems from variable emplacement depths identified four types of fluid inclusions: (type-I) vapour-poor H2O-NaCl fluids with <50 wt.% salinity; (type-II) vapour-rich H2O-NaCl-CO2 fluids with <5 wt.% salinity; (type-III) multi-component fluids with high salinity without CO2; and (type-IV) multi-component fluids with high salinity...

Single borehole dilution tests using a permeable injection bag and a novel point-injection probe for the hydraulic characterization of karst aquifers

Nikolai Fahrmeier , Nadine Goeppert & Nico Goldscheider
Single borehole dilution tests are a method for characterizing groundwater monitoring wells or boreholes and can either be conducted as uniform injection throughout the entire saturated length or as point injection at one specific depth. By injecting a tracer into a borehole and measuring concentration profiles, flow horizons and possible vertical flow can be identified and quantified. Compared to conventional methods, such as flowmeters, SBDTs are cheaper and require less equipment, but allow important conclusions...

Wind turbine signatures from long distances at the Gräfenberg Array

Klaus Stammler & Lars Ceranna
Since 2012 many wind turbines have been installed on the Frankonian Jura and a number of them also in the vicinity of stations of the Gräfenberg array (GRF), consisting of 13 broadband stations within an area of about 50x100 km. It has been shown that these turbines take a significant effect on the noise level at many of the GRF station sites (Stammler & Ceranna, 2016, reference below). The array as a whole suffers from...

Groundwater-systems in mining areas – The influence of water bearing adits

Tobias Rudolph , Christian Melchers , Peter Goerke-Mallet & Detlef Engel
Water bearing adits form a historic near-surface underground drainage and outflow systems whose functionality is of considerable importance in many mining areas all over the world. Water bearing adits are technical structures that have often been in place and in operation for more than two centuries. In most cases, they are no longer accessible directly behind the tunnel portal. Therefore, stable hydraulic, geotechnical and rock mechanical conditions are important, otherwise the hydraulic system would collapse....

Sustainable Earth from processes to resources

Christoph Hilgers & Jürgen Grötsch

Using Artificial Intelligence for Disaster Management Providing Relief

Niteesh Kumar Upadhyay & Rathee Mahak
(1) Galgotias University, India; (2) Supreme Court of India

We have seen drastic growth of Artificial Intelligence in the past few years and what seemed to be a distant dream earlier is now becoming a reality. Though there are a lot of debates on Artificial Intelligence and its use, its legality and much more but Artificial Intelligence can prove to be an asset in the field of Disaster Management and providing relief. There have...

Impact of Geological Conditions and Constructional Features on Indoor Radon

Julija Shommet, Rein Koch & Leena Paap
TTK University of Applied Sciences, Estonia

Radon is quite widespread in Estonia, due to complicated geological conditions caused by the appearance of tectonic cracks, graptolitic argillite, phosphorite and also uranium in some places. Geological Survey of Estonia mapped radon priority areas and Radon Risk Atlas was published, according to this 1/3 of the entire territory is a radon risk area.

Integrated geological and gravity modelling to improve 3D model harmonization - Methods and benefits for the Saxony-Anhalt/Brandenburg cross-border region (North German Basin)

Christian Olaf Mueller, Jacob Waechter & Alexander Malz
Geological Survey of Saxony-Anhalt, Germany

Three-dimensional geological modelling is usually constraint by seismic and borehole data. However, in geological settings of high complexity and sparse, restricted or ambiguous available information additional geoscientific data and methods have to be considered. For this purpose, the incorporation of gravity data holds enormous potential to improve structural interpretations and allows for cross-validation and harmonization of geological models. Herein, we demonstrate an integrated approach of gravity interpretation and modelling...

The mandibular morphology of the Middle Pleistocene brown bear mandible from Postes cave (Spain) within the European Ursus arctos (LINNAEUS, 1758) morphological variation

Mónica Villalba de Alvarado , Asier Gómez Olivencia, Hipólito Collado Giraldo (5), Juan Luis Arsuaga Ferreras & Anneke van Heteren
Centro UCM-ISCIII de Investigación sobre Evolución y Comportamiento Humanos, Madrid, Spain (1); Departamento de Prehistoria, Historia Antigua y Arqueología, Universidad Complutense de Madrid, Spain (2); Dept. Estratigrafía y Paleontología, Facultad de Ciencia y Tecnología, Universidad del País Vasco-Euskal Herriko Unibertsitatea (UPV-EHU), Spain (3); Sociedad de Ciencias Aranzadi, Spain (4); Consejería de Cultura e Igualdad. Junta de Extremadura Mérida, Spain (5); Departamento de Geodinámica, Estratigrafía y Paleontología Universidad Complutense de Madrid, Spain (6); Sektion Mammalogie, Zoologische...

Coniacian-Santonian ammonites from the Ilam Formation in the Zagros basin, west of Iran

Mostafa Aseh
Technische Universität Darmstadt, Germany

The ammonites from upper Coniacian to middle to upper Santonian of the Siah-Kuh section in Zagros basin, west of Iran have been described and illustrated. Three ammonite species from the argillaceous limestones of the Ilam Formation of the Bangestan Group are recognized. These ammonite species consist of Texanites (Texanites) gallicus Collignon, 1948, Texanites rarecostus Collignon, 1966 and Protexanites (Protexanites) cycni van Hoepen, 1965. These identified ammonite taxa are recorded...

The Kohlenkalk of the Rhenohercynian Basin: a hydrothermal reservoir for North Rhine-Westphalia and North-West Europe

Martin Arndt, Tobias Fritschle, Martin Salamon & Anna Thiel
Geological Survey of North Rhine-Westphalia, Germany

The transnational EU-Interreg-funded “Roll-out of Deep Geothermal Energy in North-West Europe” (DGE-ROLLOUT) project aims to reduce CO2 emissions following a multi-disciplinary geoscientific approach, and promotes the use of hydrothermal energy as a future-oriented, climate and environmentally friendly resource. During mid-Palaeozoic times, marine transgressive-regressive cycles enabled the development of extensive reef complexes on the southerly continental shelf of the Laurussian palaeocontinent, whose remainders now make up large parts of...

Towards a sediment budget of Permo-Triassic successions in the Central European Basin - implications for terrestrial perturbations around the Permian-Triassic Boundary (PTB)

Maryam Mansouri & Matthias Hinderer
Technische Universität Darmstadt, Germany

For the first time, we quantified the erosional pulse around the Permian-Triassic Boundary (PTB) over an entire sedimentary basin. Our GIS-based analysis relies on basin-wide homogenized seismic, sedimentary and stratigraphic data of the Petroleum Geological Atlas of the Southern Permian Basin. We calculated sediment volumes, sediment fluxes and sedimentation rates (SR) averaged over the entire basin from isopach maps of the Rotliegend, the Zechstein, the Lower, Middle and Upper...

Indentation and transfer of deformation between different orogenic systems: the greater Adria - Pannonian - Carpathians system

Liviu Ciprian Matenco & Douwe van Hinsbergen
Utrecht University, The Netherlands

Indentation is used to define the collisional mechanics of small plates flanked by large subduction systems creating significant thickening and lateral escape of continental units. The close spatial proximity creates a situation where deformation is actively transferred between different subduction systems during their different stages of orogenic evolution. We study this transfer by observation and modelling of indentation and orogenic evolution in the Central Mediterranean system. The evolution of the...

Cenozoic Mass Transport Deposits in the Northern Dutch Offshore: Anatomy and Implications revealed by HiRes Seismic Mapping

Alex Marks & Guido Hoetz
KU Leuven, Belgium (1); EBN, Netherlands, The (2)

Recent high resolution 3D seismic reflection data allowed to map Late Cenozoic Mass Transport Deposits (MTD) in great detail. These deformation structures in Miocene/Pliocene sediments are linked to the Eridanos delta system and the corresponding clinoforms. The structures have been identified in the Northern Dutch and German offshore where they can be found now in the depth range of 500-1000m bsf. Aim of this research was...

Landslide models and Dam sites visualised in VR

Hans-Balder Havenith
Liège Université, Belgium

For multiple landslide and two dam sites in Central Asia and SE Europe we have completed geophysical surveys (partly) complemented by borehole drilling. These data were first processed and then compiled within a 3D geomodel. Here, we present the geophysical results and the 3D geomodels adapted for visualisation in an immersive virtual environment. The geophysical surveys included electrical and seismic profiles and ambient vibration measurements as well as earthquake recordings. The...

Pore Detection and modelling with Deep Neural Networks

Christoph Schettler
Federal Institute for Geosciences and Natural Resources, Germany ;

The description of drilling probes due to their porosity is an important research subject in terms of searching for nuclear waste repositories. Th current techniques use raster electron microscope pictures together with various edge detection and growing seed algorithms coming from the field of image processing. Those algorithms suffer from certain shortcomings. The BGR has started the project ITERATOR to overcome those shortcomings with the usage...

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  • 2022
  • 2021
  • 2020

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  • Karlsruhe Institute of Technology
  • Helmholtz Centre Potsdam - GFZ German Research Centre for Geosciences
  • Federal Institute for Geosciences and Natural Resources
  • Technical University of Darmstadt
  • RWTH Aachen University
  • University of Tübingen
  • University of Bremen
  • Leibniz University Hannover
  • Utrecht University
  • Kiel University