Results 31 to 40 of about 3,184 (221)

Origin and Characteristics of the Crude Oils and Condensates in the Callovian-Oxfordian Carbonate Reservoirs of the Amu Darya Right Bank Block, Turkmenistan

open access: yesLithosphere, 2022
The Amu Darya Right Bank Block is located northeast of the Amu Darya basin, a large petroliferous sedimentary basin, with abundant natural gas resources in carbonate rocks under the ultra-thick gypsum-salt layer.
Yunpeng Shan   +8 more
doaj   +1 more source

Oxfordian magnetostratigraphy in the Iberian Range

open access: yesGeophysical Research Letters, 1995
The magnetostratigraphy has been established in two sections of middle and late Oxfordian age from the Iberian Range (Spain). The polarity sequences correlate well with the magnetozones in sections at Aguilón and Tosos [Juárez et al., 1994]. A composite magnetostratigraphic sequence has been derived for all the sections in the Iberian Range.
M. T. Juárez   +3 more
openaire   +1 more source

Upper Jurassic (Malm) Shallow-Water Carbonates in the Western Gorski Kotar Area: Facies and Depositional Environments (Western Croatia)

open access: yesGeologia Croatica, 2010
Shallow-water carbonates in the Upper Jurassic of the Gorski Kotar were deposited on a carbonate ramp, in beach-barrier island-lagoonal and peritidal environments. In the continuous sequence, more than 900 m thick, several facies have been found: (A) low-
Josip Tišljar, Ivo Velić
doaj   +1 more source

Evidence of macrophagous teleosaurid crocodylomorphs in the Corallian Group (Oxfordian, Late Jurassic) of the UK [PDF]

open access: yesPeerJ, 2015
Teleosaurids were a group of semi-aquatic crocodylomorphs with a fossil record that spanned the Jurassic Period. In the UK, abundant specimens are known from the Oxford Clay Formation (OCF, Callovian to lower Oxfordian), but are very rare in the ...
Davide Foffa   +2 more
doaj   +2 more sources

Pre‐Oxfordian (>163 Ma) Ophiolite Obduction in Central Tibet [PDF]

open access: yes, 2020
The timing of Bangong-Nujiang suture ophiolite obduction between the Lhasa and Qiangtang terranes in central Tibet is important for understanding the closure history of the Meso-Tethys but remains poorly constrained.
Ma, Anlin   +14 more
core   +1 more source

Petroleum geology of the Upper Jurassic – Lower Cretaceous of East and North-East Greenland: Blokelv-1 borehole, Jameson Land Basin: Late Jurassic evolution of the Jameson Land Basin, East Greenland – implications of the Blokelv-1 borehole [PDF]

open access: yesGeological Survey of Denmark and Greenland Bulletin, 2018
Data from the recently drilled, fully cored Blokelv-1 borehole and previous cored boreholes in the Upper Jurassic of Jameson Land, central East Greenland, are integrated with published field studies to address the depositional evolution of the Jameson ...
Morten Bjerager   +5 more
doaj  

Trachyteuthis covacevichi n. sp., a Late Jurassic Palaeopacific coleoid cephalopod [PDF]

open access: yesFossil Record, 2008
A new early Oxfordian coleoid cephalopod, Trachyteuthis covacevichi n. sp., is described from northern Chile. It represents the first Late Jurassic Palaeopacific vampyropod and thus considerably extends the palaeogeographic distribution of trachyteuthids.
D. Fuchs, H.-P. Schultze
doaj   +1 more source

Filling the Corallian gap: New information on Late Jurassic marine reptile faunas from England [PDF]

open access: yesActa Palaeontologica Polonica, 2018
Two of the best known Mesozoic marine reptile assemblages can be found in units deposited in the Jurassic Sub-Boreal Seaway of the UK: the late Middle Jurassic Oxford Clay Formation (OCF) and Late Jurassic Kimmeridge Clay Formation (KCF). They record two
Davide Foffa   +2 more
doaj   +1 more source

Composition and structure of upper Jurassic black shales from the Moscow region considering new data

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2016
For the first time the sections of the southeast of Moscow and adjacent areas of the Moscow region, which contain the Lower Volgian and Oxfordian black shales, were studied in detail and described.
S. Yu. Malenkina
doaj   +2 more sources

Fracture Properties and Their Impacts on Performance in Carbonate Reservoir, Central Block B on the Right Bank of Amu Darya

open access: yesLithosphere, 2022
The Callovian-Oxfordian carbonate reservoir in central Block B on the right bank of Amu Darya is composed of different mechanical and petrophysical layers, where the tectonic fractures have major influences on both the performance and production of the ...
Yuzhong Xing   +6 more
doaj   +1 more source

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