Results 51 to 60 of about 2,661 (202)

Organic petrographic, geochemical, and sequence stratigraphic analyses for evaluating the hydrocarbon potential of Middle Jurassic–Lower Cretaceous rocks in Shushan Basin, northwestern Egypt

open access: yesFrontiers in Earth Science, 2023
Integrated organic petrographic and geochemical analyses were made on organic-rich marine carbonate and mixed clastic-carbonate rocks of Middle–Late Jurassic and Early Cretaceous age from the Shushan Basin, Egypt to evaluate their hydrocarbon potential ...
Mohammed H. Aljahdali   +6 more
doaj   +1 more source

Paleo-Depositional Environments of Mirdita Zone During the Upper Jurassic–Lower Cretaceous

open access: yesAlbanian Journal of Natural and Technical Sciences
To decipher the paleo-depositional environments and the geodynamic evolution of the Mirdita Zone during the Upper Jurassic–Lower Cretaceous, as well as the timing of the emplacement of the underlying ophiolitic deposits, several areas with different ...
Bardhyl Muceku   +2 more
doaj   +1 more source

Re-evaluation of the Mentelle Basin, a polyphase rifted margin basin, offshore southwest Australia: new insights from integrated regional seismic datasets [PDF]

open access: yesSolid Earth, 2011
Vintage 2-D (two-dimensional) seismic reflection surveys from the sparsely explored Mentelle Basin (western Australian margin) have been reprocessed and integrated with a recent high-quality 2-D seismic survey and stratigraphic borehole data ...
D. Maloney   +4 more
doaj   +1 more source

1D Basin Modelling of Upper Jurassic to Upper Cretaceous Source Rocks in the Southern Pletmos Sub‐Basin, Outeniqua Basin, Offshore South Africa

open access: yesJournal of Petroleum Geology, Volume 49, Issue 4, Page 1382-1411, October 2026.
ABSTRACT The Pletmos sub‐basin in the Outeniqua Basin, offshore South Africa, is divided by the Superior, Pletmos and Plettenberg faults into northern and southern depocentres. In this study, geological and organic geochemical data together with 1D basin modelling were used to investigate the burial, thermal and maturation histories, and the timing of ...
Fritz Ako Agbor   +4 more
wiley   +1 more source

Multi‐proxy sequence stratigraphy of a mixed carbonate–siliciclastic shelf across the Jurassic–Cretaceous transition

open access: yesThe Depositional Record, Volume 12, Issue 4, September 2026.
An integrated facies, MS and XRF‐based approach applied to the Tithonian–Berriasian Sidi Khalif Formation (central Tunisia) resolves five Tithonian and eight Berriasian third‐order sequences, showing how mixed carbonate–siliciclastic shelves record coupled eustatic, climatic and tectonic controls and providing a transferable template for similar mud ...
Hamdi Omar, Adnene Lafi, Chokri Yaich
wiley   +1 more source

Application of the mathematical modeling of the processes of geofiltration and geomigration at the deposits of mineral waters of IV group of complexity (Kislovodsk deposits of mineral waters)

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2016
The important issue of constructing a mathematical model of the Kislovodsk mineral water deposit is considered. The hydrodynamic and hydrogeochemical regimes of the aquifers are characterized by highly dynamics, and depend both on the natural and ...
A. V. Malkov   +3 more
doaj   +2 more sources

Detrital zircon ages, Lu‐Hf isotopes of zircon grains, Sr‐Nd isotopes on whole rock and geochemistry of Campanian turbidites in the Eastern Pontides (NE Türkiye): A provenance assessment and Gondwana records

open access: yesThe Depositional Record, Volume 12, Issue 4, September 2026.
These findings confirm that the Campanian‐aged Bozbent Member turbiditic sequence in the Eastern Pontides was deposited in an extensional fore‐arc basin and therefore exhibits the petrographic and geochemical characteristics of passive margin sandstones.
Çiğdem Saydam Eker   +6 more
wiley   +1 more source

Callovian to Valanginian Chemostratigraphy of the Eastern Arabian Plate Margin

open access: yesProceedings, 2012
Following the breakup of Gondwana the northeastern passive margin of the Arabian Plate entered during the Permian a period of long-term thermal subsidence that lasted until renewed tectonic activity in the Early Turonian. This resulted in the more-or-less continuous deposition of mainly carbonate shelf sediments with the section reaching a thickness of
V. Vahrenkamp, A. Al Mansoori
openaire   +2 more sources

‘The big chunky belemnite’: a new relict megateuthidid from the Oxfordian (Late Jurassic) of Wyoming, USA, and its place in the evolutionary history of the group

open access: yesPapers in Palaeontology, Volume 12, Issue 5, September/October 2026.
Abstract We describe and discuss two finds of large and untypical belemnite rostra originating from the upper part of the Sundance Formation (Oxfordian) of Wyoming, USA. With a diameter reaching c. 60 mm at the anterior end, these rostra are the thickest known for belemnites so far.
Alexey P. Ippolitov   +3 more
wiley   +1 more source

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