Results 21 to 30 of about 119 (110)

Differences in Multi-Phase Hydrocarbon Accumulation and Controlling Factors Between Eastern and Western Kuqa Depression

open access: yesApplied Sciences
The Kuqa Depression in the Tarim Basin is a structurally complex foreland basin with strong east–west variations in tectonic deformation, pressure regime, and petroleum system evolution, making reconstruction of multiphase hydrocarbon charging essential ...
Yang Zhang   +4 more
doaj   +1 more source

Geological setting of silica in Dehnow-Abid region (Eshghabad northeast) using fluid inclusions studies

open access: yesJournal of Economic Geology, 2017
Introduction Dehnow-Abid area is a part of the geological map of Eshghabad with scale 1:100000 (Aghanabati, 1994) that is located about 20 kilometers northeast of Eshghabad and in the coordinates of 57° 6´ 0" to 57° 10´ 0" eastern longitude and 34° 28 ...
Omid Yazdanpanah, Ali Akbar Hassannezhad
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

Structurally‐Controlled Permeability Evolution and Mineralization in Geothermal Caprocks: The Fenice Capanne Mining District (Southern Tuscany, Italy)

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract The Neogene mineralized region of the Colline Metallifere in southern Tuscany (Italy) provides a natural laboratory to investigate feedback between fluid–rock interaction, structurally controlled fluid flow, and hydrothermal ore mineralization.
Barbara Marchesini   +12 more
wiley   +1 more source

Petrography and Fluid Inclusions for Petroleum System Analysis of Pre-Salt Reservoirs in the Santos Basin, Eastern Brazilian Margin

open access: yesGeosciences
The complex interaction of hydrothermal fluids and carbonate rocks is recognized to promote significant impacts on petroleum systems, reservoir porosity, and potential.
Jaques Schmidt   +10 more
doaj   +1 more source

Depositional Facies, Sequence Stratigraphy, and Diagenesis of Lower Cretaceous Carbonate Reservoir, Southern Iraq: Implications for Petroleum Exploration

open access: yesJournal of Petroleum Geology, Volume 49, Issue 2, Page 312-345, April 2026.
ABSTRACT The Lower Cretaceous Yamama Formation of southern Iraq represents a key carbonate reservoir within Iraq and the Middle East, yet its complex depositional facies architecture and diagenetic alterations present challenges for predicting reservoir quality.
A. K. A. Mohammed   +8 more
wiley   +1 more source

Mineralogical and Geochemical Characteristics of the Gudang Handak Vein Group in the Pongkor Au‐Ag Deposit, West Java, Indonesia

open access: yesResource Geology, Volume 76, Issue 1, January/December 2026.
The microtextural variations of quartz, which range from granular to feathery and microcrystalline forms, show a clear correlation between quartz geochemistry and gold grade, revealing that specific quartz textures are closely associated with higher gold concentrations in the Gudang Handak vein samples.
Syaiful Hilal   +11 more
wiley   +1 more source

Fluid Inclusion Stratigraphy and Multistage Hydrocarbon Evolution in the Risha Gas Field, Jordan

open access: yesGeofluids, Volume 2026, Issue 1, 2026.
An integrated fluid inclusion stratigraphy (FIS) and petrographic analysis of the RH‐3 well in the Risha Gas Field, Jordan, reveals a highly compartmentalized vertical fluid column. The upper section (1200–1750 m) is dominated by wet‐gas to gas‐condensate fluids, transitioning to dry gas below 1850 m.
Mohamed Arafat   +6 more
wiley   +1 more source

Rock‐buffered versus fluid‐buffered geochemistry of structurally controlled, hydrothermal dolomite: Insights from the Sichuan Basin, China

open access: yesSedimentology, Volume 72, Issue 7, Page 2087-2120, December 2025.
ABSTRACT Structurally controlled hydrothermal dolomitization, commonly driven by high‐pressure, high‐temperature fluid–rock reactions, offers insights into the tectonic evolution of sedimentary basins and the geochemical composition of their diagenetic fluids.
Huachuan Jiang   +7 more
wiley   +1 more source

Genesis of anhydrites in the dolomite facies of the oligo-miocene Asmari formation, Zagros basin: implication for reservoir quality

open access: yesJournal of Petroleum Exploration and Production Technology
The type and amount of distribution of evaporite minerals within reservoir rocks play important role in reservoir quality. This study focuses on thin section petrography, field emission scanning electron microscopy, energy dispersive X-ray spectroscopy ...
Mohammad Hossein Madadi   +2 more
doaj   +1 more source

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