Results 41 to 50 of about 855 (133)

A workflow for building and calibrating 3-D geomechanical models &ndash a case study for a gas reservoir in the North German Basin [PDF]

Solid Earth, 2013
The optimal use of conventional and unconventional hydrocarbon reservoirs depends, amongst other things, on the local tectonic stress field. For example, wellbore stability, orientation of hydraulically induced fractures and – especially in fractured ...
K. Fischer, A. Henk
doaj   +1 more source

A first high-resolution carbon isotope stratigraphy from the Boreal (NW Germany) for the Berriasian to Coniacian interval—implications for the timing of the Aptian–Albian boundary

Frontiers in Earth Science, 2023
High-amplitude changes in sedimentary δ13C characterize the Cretaceous system and have been proven useful for supra-regional chemostratigraphic correlation.
André Bornemann, André Bornemann, Jochen Erbacher, Jochen Erbacher, Martin Blumenberg, Silke Voigt   +5 more
doaj   +1 more source

Correlating High‐Resolution Terrestrial Organic Carbon Isotope Records Across the Cretaceous‐Paleogene Boundary

Paleoceanography and Paleoclimatology, Volume 41, Issue 7, July 2026.
Abstract The Cretaceous–Paleogene boundary (∼66 million years ago) represents the most recent mass extinction event when an estimated 75% of all species became extinct, including all non‐avian dinosaurs. Here we focus on the stable carbon isotope (δ13C) analysis of coal and coaly sediments across the terrestrial K/Pg boundary from 10 sites, between 42 ...
Gregory D. Price, Rhodri M. Jerrett, Lauren K. O'Connor, Emily Dearing Crampton‐Flood, Bart E. van Dongen, Sabine K. Lengger, Marc Davies   +6 more
wiley   +1 more source

Tectonometamorphic evolution of a subduction plate interface at the base of the Mirdita Ophiolite (Bajram Curri, northeastern Albania)

Swiss Journal of Geosciences
The Western Vardar ophiolite, a thrust sheet of oceanic crust and mantle obducted onto the Adriatic passive margin in the Late Jurassic, crops out along the entire Balkan Peninsula.
Madeline Richter, Kilian Pollok, Kujtim Onuzi, Kamil Ustaszewski   +3 more
doaj   +1 more source

Building 1D and 3D Mechanical Earth Models for Underground Gas Storage—A Case Study from the Molasse Basin, Southern Germany

Energies, 2020
Hydromechanical models of gas storage in porous media provide valuable information for various applications ranging from the prediction of ground surface displacements to the determination of maximum reservoir pressure and storage capacity to maintain ...
Muhammad Zain-Ul-Abedin, Andreas Henk
doaj   +1 more source

A geophysical investigation of the Roter Kamm impact crater, Namibia

Meteoritics &Planetary Science, Volume 61, Issue 7, Page 1386-1398, July 2026.
Abstract The Roter Kamm impact crater is located in the southern Namib Desert. The crater has a diameter of 2.5 km and belongs to the category of simple, bowl‐shaped impact craters, with an elevated rim of fractured target rock. The crater's interior is completely buried beneath sediments, preventing extensive surface investigations of the bedrock ...
Hannah Nienhaus, Pritam Yogeshwar, Wiebke Mörbe, Bülent Tezkan, Yajun Liu, Bufelo Lushetile, Martin Melles   +6 more
wiley   +1 more source

Elastic and Frictional Properties of Fault Zones in Reservoir-Scale Hydro-Mechanical Models—A Sensitivity Study

Energies, 2020
The proper representation of faults in coupled hydro-mechanical reservoir models is challenged, among others, by the difference between the small-scale heterogeneity of fault zones observed in nature and the large size of the calculation cells in ...
Torben Treffeisen, Andreas Henk
doaj   +1 more source

The Seismic Signature of the Atlantis Massif Oceanic Detachment Fault Determined From Crystallographic Preferred Orientation and Microstructure

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 6, June 2026.
Abstract At slow‐spreading mid‐ocean ridges large scale detachment faults partly accommodate the spreading process. The mafic and ultramafic rocks at the ridges are infiltrated by water and change their mineralogy. Subsequently or contemporaneously to these reactions, detachment faulting takes place.
R. Kuehn, J. H. Behrmann, J. Kossak‐Glowczewski, B. Leiss, M. Stipp   +4 more
wiley   +1 more source

The dentition of the Late Jurassic dwarf sauropod Europasaurus holgeri from northern Germany: ontogeny, function, and implications for a rhamphotheca-like structure in Sauropoda [PDF]

PeerJ
The basal macronarian sauropod Europasaurus holgeri is known only from the Late Jurassic of the Langenberg Quarry near Goslar, Lower Saxony, Germany. Europasaurus has been identified as an insular dwarf and shows a clear resemblance to Camarasaurus and ...
Verena Régent, Kayleigh Wiersma-Weyand, Oliver Wings, Nils Knötschke, P. Martin Sander   +4 more
doaj   +2 more sources

Effect of the Content and Ordering of the sp² Free Carbon Phase on the Charge Carrier Transport in Polymer-Derived Silicon Oxycarbides

Molecules, 2020
The present work elaborates on the correlation between the amount and ordering of the free carbon phase in silicon oxycarbides and their charge carrier transport behavior. Thus, silicon oxycarbides possessing free carbon contents from 0 to ca.
Felix Rosenburg, Benjamin Balke, Norbert Nicoloso, Ralf Riedel, Emanuel Ionescu   +4 more
doaj   +1 more source