Results 71 to 80 of about 5,375 (265)

Division and resources evaluation of hydrocarbon plays in the Amu Darya basin, central Asia

open access: yesPetroleum Exploration and Development, 2015
Based on the newest geological data and exploration achievements and the analysis of hydrocarbon accumulation elements and distribution rules of oil and gas fields, hydrocarbon plays are divided according to the reservoirs in the Amu Darya basin, central
Yixin YU   +6 more
doaj   +1 more source

Palynostratigraphy of the Dalichai Formation in Darjazin section, North of Semnan [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2018
The Dalichai Formation in Darjazin section in NE Semnan with a thickness of 631 meters consisting of an alternation of bulish-gray was studied.This formation overlies the Shemshak formation disconformity with conglomerate bed and it has gradually been ...
khadijeh Mohammad-khani, Elahe Zarei
doaj   +1 more source

Environmental and climatic proxies for the Cañadón Asfalto and Neuquén basins (Patagonia, Argentina): review of middle to upper jurassic continental and near coastal sequences [PDF]

open access: yes, 2015
In this review, we include several proxies (sedimentology, palynology, invertebrates) from the Cañadón Asfalto and Neuquén basins, to infer the environments and regional climatic context during the Middle to Late Jurassic of Patagonia.
Cabaleri, Nora Graciela   +6 more
core   +1 more source

Facies mosaic distribution and stratigraphic disorder of a mixed carbonate–siliciclastic tidal succession

open access: yesSedimentology, Volume 73, Issue 1, Page 40-82, January 2026.
ABSTRACT Complex stratigraphic arrangements may be generated through lateral facies transitions from the strata of aeolian depositional systems into bordering peritidal deposits. In such scenarios, sedimentary architectural complexity and associated facies heterogeneities are governed by the interplay between autogenic processes inherent to tidal ...
Victor J. P. Hême de Lacotte   +5 more
wiley   +1 more source

Anatomy and Sequence Architecture of the early Post-Rift in the Neuquén Basin (Argentina): A Response to Physiography and Relative Sea-level Changes [PDF]

open access: yes, 2013
A detailed architectural and sequence stratigraphic analysis was carried out in the early-post-rift succession of central Neuque´n Basin (Middle Jurassic Cuyo Group), integrating outcrop and subsurface information from a 3,000 km2 area.
Massaferro, Jose L   +3 more
core   +2 more sources

SCOTTISH CALLOVIAN AND OXFORDIAN OSTRACODA

open access: yes, 1970
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

Some record it hot: Clumped isotope temperatures from Middle Jurassic molluscan aragonite

open access: yesSedimentology, Volume 73, Issue 1, Page 248-266, January 2026.
ABSTRACT Clumped isotope (Δ47) data from the shell aragonite of Praemytilus strathairdensis, a non‐marine Middle Jurassic mytilid from the Inner Hebrides of Scotland, presents a rare geological context for better understanding the effects of diagenesis on Δ47 in skeletal aragonite. Nineteen P. strathairdensis shells gave Δ47 temperatures between 23 ± 5°
Richmal B. Paxton   +4 more
wiley   +1 more source

Sr-Nd isotopic characteristic, U-Pb zircon geochronology, and petrogenesis of Najmabad Granodiorite batholith, Eastern Iran

open access: yesJournal of Economic Geology, 2012
The study area is located south of Ghonabad in Eastern Iran. This area is situated between two major faults, Darouneh to the north and Dashtbyaz to the south. The movements of these faults cased major dislocation of this block.
Mehrab Moradi Noghondar   +3 more
doaj   +1 more source

Cooling and Exhumation History of the Paris Basin Southeastern Margin Revealed by Δ47 /U–Pb Carbonate Thermochronology

open access: yesTerra Nova, Volume 37, Issue 6, Page 421-430, December 2025.
ABSTRACT This study applies Δ₄₇/U–Pb thermochronology to the Middle Jurassic carbonates exposed in the southeastern margin of the Paris Basin. By integrating clumped isotope analyses and U–Pb dating of diagenetic carbonates, we reconstruct the thermal and exhumation history of the sedimentary succession.
Marta Gasparrini   +4 more
wiley   +1 more source

Les Pseudoperisphinctinae (Ammonitina, Perisphinctidae) de l'horizon à Leckenbyi (Callovien supérieur, zone à Athleta) de Montreuil-Bellay (Maine-et-Loire, France) et description d'une nouvelle espèce, Choffatia isabellae [Pseudoperisphinctinae (Ammonitina, Perisphinctidae) from the Leckenbyi horizon (Upper Callovian, Athleta zone) of Montreuil-Bellay (Maine-et-Loire, France) and description of a new species, Choffatia isabellae]

open access: yesCarnets de Géologie, 2008
Pseudoperisphinctinae (Ammonitina, Perisphinctidae) from the Leckenbyi horizon (Upper Callovian, Athleta zone) of Montreuil-Bellay (Maine-et-Loire, France) and description of a new species, Choffatia isabellae.- Many outcrops exposing the Mid-Callovian ...
Ferchaud Patrice   +3 more
doaj  

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