Results 51 to 60 of about 258 (167)

Salts in the Earth's crust: Distribution and kinematic history

open access: yesЛитосфера, 2017
Illumination in the literature of a number of topical problems of hydrochloric geology concerning the prevalence of salts in the interior, especially in tectonically deformed complexes, their transformation in different types of structures and kinematic ...
A. Belenitskaya Galina
doaj   +1 more source

Geodynamic Modeling With Uncertain Initial Geometries

open access: yesGeochemistry, Geophysics, Geosystems, 2022
Geodynamic codes have become fast and efficient enough to facilitate sensitivity analysis of rheological parameters. With sufficient data, they can even be inverted for.
A. Spang, T. S. Baumann, B. J. P. Kaus
doaj   +1 more source

Geochemical and Geological Investigation of Skarn‐Type Pb–Zn Mineralization in Hastanetepe (Balya‐Balıkesir, Türkiye): An Approach Based on Fluid Inclusions, Sulphur Isotopes and Geochemical Data

open access: yesGeological Journal, EarlyView.
Integrated petrographic, mineralogical and geochemical data from the Hastanetepe Pb–Zn deposit (Balya, Türkiye) reveal multi‐stage hydrothermal alteration and a magmatic sulphur source. Fluid inclusion and sulphur isotope results indicate a complex fluid evolution responsible for skarn‐type Pb–Zn mineralization along limestone–dacite contacts ...
Esra Ünal‐Çakır
wiley   +1 more source

Salt Tectonics of the Atlas Mountains in Morocco

open access: yes, 2021
AAPG Annual Convention and Exhibition 2¿5 April, 2017, in Houston, Texas, USA.
Vergés Masip, Jaume   +11 more
openaire   +2 more sources

Seismic Sequence Stratigraphy Applied to Reservoir Recognition and Evolution on Marine Carbonatic Ramp—Macaé Group (Albian to Cenomanian) of Campos Basin

open access: yesGeological Journal, EarlyView.
A classic oil producing interval of the Campos Basin—Macaé Group is revisited through seismic stratigraphic analysis, providing a stratigraphic framework, characteristic depositional and relative time positioning for several complex structural settings.
Renata Alvarenga   +12 more
wiley   +1 more source

Geometry and Tectonic History of West Qurna-1 Structure, Southern Iraq, Mauddud Carbonate Reservoir as Case Study

open access: yesIraqi Geological Journal
West Qurna 1 is a portion of the supergiant anticline that extends more than 120 km. This elongated anticline contains, from north to south, West Qurna 2, West Qurna 1, North Rumaila, and South Rumaila.
Mayssa Abdulhameed   +2 more
doaj   +1 more source

Seismic Exploration of the Deep Structure and Seismogenic Faults in the Ligurian Sea by Joint Multi Channel and Ocean Bottom Seismic Acquisitions: Preliminary Results of the SEFASILS Cruise

open access: yesGeosciences, 2020
The north Ligurian margin is a complex geological area in many ways. It has witnessed several phases of highly contrasting deformation styles, at both crustal scale and that of shallower cover tectonics, simultaneously or in quick succession, and with ...
Jean-Xavier Dessa   +15 more
doaj   +1 more source

Local Structures of Se and Br in Cretaceous–Paleogene Boundary Sediments and Concentration Effects of Ferrihydrite Originating From Impact Ejecta

open access: yesGeological Journal, EarlyView.
Chemical states of Se and Br atoms in the KPg boundary sediments from Stevns Klint were studied using XAFS spectroscopy. The high concentrations of Se4+ could become an index of the degree to which the global environment was soiled with dust and ash derived from impact ejecta or volcanic eruptions.
Kei‐ichiro Murai   +5 more
wiley   +1 more source

Apatite in Carbonatite Preserving Primary Magmatic, Post‐Magmatic Overgrowth, and Post India‐Asia Collision‐Related Hydrothermal Alteration: Evidenced From U–Pb Isotope and Trace Element Geochemistry

open access: yesGeological Journal, EarlyView.
U–Pb isotope and trace element geochemistry of apatite from carbonatites of Peshawar Plain Alkaline Igneous Province, western Himalaya shows Permo‐Carboniferous magmatism, an additional magmatic pulse during Cretaceous, and post‐magmatic hydrothermal/metasomatism during Oligocene. ABSTRACT U–Pb isotope and trace element geochemistry of apatite combined
Mehboob ur Rashid   +9 more
wiley   +1 more source

Triggering mechanism and tsunamogenic potential of the Cape Fear Slide complex, U.S. Atlantic margin

open access: yesGeochemistry, Geophysics, Geosystems, 2007
Analysis of new multibeam bathymetry data and seismic Chirp data acquired over the Cape Fear Slide complex on the U.S. Atlantic margin suggests that at least 5 major submarine slides have likely occurred there within the past 30,000 years, indicating ...
Matthew J. Hornbach   +2 more
doaj   +1 more source

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