Fakultät für Geowissenschaften und Geographie (inkl. GAUSS): Recent submissions
Now showing items 21-40 of 352
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Diagenetic controls on sandstones of the Stuttgart Formation – consequences for the porosity evolution of hydrothermal reservoirs in the North German Basin
(2023-07-05)The present dissertation is part of the R&D project GeoPoNDD, which deals with the potential use of the six main Mesozoic geothermal reservoir complexes in Northern Germany. The hydrothermal reservoirs of the Stuttgart ... -
Early Earth mantle heterogeneities
(2023-07-04)Determining isotopic signatures established in the Hadean mantle offers far-reaching insights into the origin of Earth’s accreted building blocks, core formation, mantle differentiation as well as the formation of Earth’s ... -
Optimierung der Eigenschaften von neuartigem Elektrobandstahl
(2023-05-23)In the present work, the influence of silicon (Si) and particularly aluminium (Al) on the properties of electrical steel is studied. The aim is to decrease magnetization losses and therefore increase the efficiency of ... -
Impact of climate change on recharge and vadose-phreatic storage dynamics of a Mediterranean karst aquifer: Quantitative approach for the management of a complex groundwater resource
(2023-04-11)The Mediterranean basin will be severely affected by global warming and decreased average rainfall and is often portrayed as the most prominent climate change hotspot. At the same time, the Mediterranean basin is endowed ... -
Impacts of rainforest transformation into oil-palm plantations on silicon pools in soils
(2023-03-30)Silicon (Si) is the second most abundant element in the Earth’s crust. In rocks, Si primarily occurs as primary silicates. In soils, Si is present mostly as secondary silicates or amorphous silica of biogenic or pedogenic ... -
Kommunalismus und Raumproduktion am Beispiel der indischen Metropole Hyderabad
(2023-01-11)Hyderabad is a fast growing emerging Indian Megacity. Along with globalisation rapid and drastic changes have taken place resulting in spatial fragmentations and new conflicts. The Muslim-dominated old city of Hyderabad ... -
Political Change and Urban Growth in a Medium-sized Outer Island Capital in Indonesia: The Case of Palu, Central Sulawesi
(2022-11-28)Purpose: This study examines how Palu’s urban development was affected by centralization and subsequent decentralization policies as well as how these shaped the local government and society. This study also explores local ... -
Reconstruction of rift basins in the Eastern Cordillera and Middle Magdalena Valley, Colombia: Analysis of the extensional phase and structural styles of tectonic inversion
(2022-11-28)The Middle Magdalena Valley (MMV) and the Eastern Cordillera (EC) are regional tectonic units of the northern Andes in Colombia that comprise a total area of about 100.000 km2. The MMV is an intermontane basin located ... -
Modelling the porosity loss in granular iron based permeable reactive barriers
(2022-11-24)The quality of groundwater resources globally has been under serious threat due to their exposure to a broad spectrum of anthropogenic pollutants. Permeable reactive barriers (PRBs) are an innovative technology being used ... -
Numerical simulation of permeability heterogeneity in single- and two-phase flow systems to assess the performance of enhanced geothermal system
(2022-11-09)The development of Enhanced Geothermal System (EGS) technology leads to the possibility of an extensive application of geothermal energy, which is attractive because of its ability to reduce CO2 emissions and dependence ... -
Use of selected anthropogenic pesticides, nutrients, and biomarkers to spatially and temporally characterize eutrophication dynamics at a shallow lake (Lake Seeburg)
(2022-11-09)Eutrophication of water bodies caused by high nutrient inputs, especially of phosphorus, is a global concern for a wide variety of ecosystems. To assess this problem, different monitoring approaches have been applied to a ... -
Pore- and core-scale studies for development of the Kinetic Interface Sensitive tracer – A novel reactive tracer technique to measure the fluid-fluid interfacial area for dynamic two-phase flow in porous media
(2022-11-04)Fluid-Fluid Interfacial Area (FIFA) is an important parameter relevant in numerous geological applications where two phases of fluids exist and interphase reactive mass transfer can happen. For example, in geological storage ... -
Characterization of Hydraulic Properties in Fractured Aquifers Using Slug Test-based Hydraulic Tomography and Thermal Tracer Tomography
(2022-10-25)Fractured aquifers are widely distributed on the earth’s surface and are frequently encountered in many underground projects, such as groundwater resource evaluation, contaminants remediation, and geothermal energy ... -
Towards a high-quality interannual to millennial ice-core based temperature reconstruction for East-Antarctica
(2022-09-16)Instrumental observations of climate cover only the past ~200 years. Our knowledge about historical natural climate variability beyond this time is exclusively based on climate proxies, stored within natural archives. ... -
Biotechnology and the socio-biological production of vulnerability. Genetically engineered cotton in Telangana, India
(2022-08-12)The use of genetically engineered (GE) crops in agriculture has been the subject of fierce controversy worldwide for decades and remains so until today. The potentials and risks of the technology are still contested and ... -
Ejecta erosion, hydrological, and chemical lake evolution in the Ries impact basin (Miocene, Germany)
(2022-04-08)To inspect past environmental changes and potential habitability, the growing interests for the ancient Martian crater lakes call for better understandings of palaeolimnological evolution of impact crater lakes. Particularly, ... -
Triple oxygen isotope ratios of bioapatite
(2022-04-07)Bioapatite is the major crystalline component of bone and tooth materials. Recent studies demonstrated that bioapatite carries information of animals’ physiology and living environmental conditions and retains its original ... -
Violence and volume: an experimental study of CO2 driven eruptions of Colli Albani
(2022-04-07)This thesis presents the first rheological investigations of melts from the Colli Albani Volcanic District (CAVD) near Rome (Italy). Despite their silica-poor (< 45 wt%) and ultrapotassic composition – indicating a low ... -
A geobiological approach to carbonate factories and ecosystem changes across the Permian–Triassic boundary
(2022-04-05)Contemporary climate change is accelerating. Meanwhile, “Has the Earth’s sixth mass extinction already arrived?” is inquired. The Permian–Triassic crisis, as a possible analog in the Earth history, has aroused great ... -
Above- and belowground biomass and nutrient stocks in monoculture and agroforestry cacao production systems in the Alto Beni, Bolivia
(2022-03-08)There is hardly any place left on earth that can be considered untouched nature. Humans penetrate into all areas of this earth, and may it be through greenhouse gas emissions or other types of air and environmental pollution. ...