Results 61 to 70 of about 44,839 (285)

Dinosaur footprints from the Duntulm Formation (Bathonian, Jurassic) of the Isle of Skye [PDF]

open access: yes, 2004
The first in situ dinosaur tracks from Scotland were discovered at the top of the Duntulm Formation (Bathonian, Jurassic) near to Staffin in northeastern Skye.
ANDERSON   +9 more
core   +1 more source

The role of water bridge on gas adsorption and transportation mechanisms in organic shale

open access: yesScientific Reports
This work introduces and discusses the impacts of the water bridge on gas adsorption and diffusion behaviors in a shale gas-bearing formation. The density distribution of the water bridge has been analyzed in micropores and meso-slit by molecular ...
Binhui Li   +5 more
doaj   +1 more source

The Cenomanian–Turonian boundary interval in the Western Canada Foreland Basin: Stratigraphy, geochemistry, geochronology and sea‐level changes recorded in expanded and condensed clastic successions

open access: yesThe Depositional Record, EarlyView.
Shallow‐marine mudstone of the Cretaceous Kaskapau Formation in the British Columbia foredeep preserves a 185 m thick record of OAE2. The organic carbon‐isotope and osmium‐isotope excursions can be correlated in detail with other Cenomanian–Turonian boundary sections around the world.
A. Guy Plint   +12 more
wiley   +1 more source

The Transformation of Sediment Into Rock : Insights From IODP Site U1352, Canterbury Basin, New Zealand [PDF]

open access: yes, 2017
ACKNOWLEDGMENTS We thank the crew of the RV JOIDES Resolution for professional seamanship, excellent drilling, and the scientific support on board. GHB and SCG thank the Australia–New Zealand IODP Consortium (ANZIC), and KMM thanks the Consortium for ...
Browne, Greg H.   +8 more
core   +1 more source

Experimental study on initiation and propagation of hydraulic fractures in stratified shale oil reservoirs

open access: yesJournal of Petroleum Exploration and Production Technology
The bedding planes of the Gulong shale oil reservoir in Daqing, China are extremely developed, which causes the hydraulic fractures to extend excessively in the horizontal direction while their longitudinal propagation is limited. In order to improve the
Hao Qin   +11 more
doaj   +1 more source

Velocity anisotropy of Upper Jurassic organic-rich shales, Norwegian Continental Shelf [PDF]

open access: yesGEOPHYSICS, 2017
This study investigates the seismic velocity anisotropy of two organic-rich shales from the Norwegian Continental Shelf. The tested organic-rich shale samples were from the Upper Jurassic Draupne and Hekkingen formations collected from two wells (16/8-3S and 7125/1-1) drilled in the central North Sea and western Barents Sea, respectively.
Koochak Zadeh, Mohammad   +2 more
openaire   +4 more sources

Ichnological discrimination of hemipelagic‐dominated slope versus basin‐floor mudstones: Insights from early Viséan successions of a distally steepened ramp, northern Iran

open access: yesThe Depositional Record, EarlyView.
This study integrates sedimentological and ichnological data to reveal the depositional processes and environmental conditions of deep‐water muddy gravity flows in the Mobarak Formation. It highlights distinct ichnocoenoses and bioturbation patterns, offering insights into basin‐floor versus slope mudstones and their implications for hydrocarbon ...
Aram Bayet‐Goll   +2 more
wiley   +1 more source

Geology of the Transverse Range Province, Southern California [PDF]

open access: yes, 1954
The Transverse Range province of southern California is an elongate geomorphic and structural unit that trends essentially east-west across parts of Santa Barbara, Ventura, Los Angeles, San Bernardino, and Riverside Counties (pl. 4).
Bailey, Thomas L., Jahns, Richard H.
core  

Distribution of discontinuous mudstone beds within wave-dominated shallow-marine deposits : Star Point Sandstone and Blackhawk Formation, Eastern Utah [PDF]

open access: yes, 2014
Acknowledgements Funding for this study was provided from the Research Council of Norway through the Petromaks project 193059 and the FORCE Safari Project. The lidar data was collected by Julien Vallet and Samuel Pitiot of Helimap Systems SA.
Buckley, Simon   +2 more
core   +2 more sources

Event-based recursive filtering for nonlinear bias-corrupted systems with amplify-and-forward relays

open access: yesSystems Science & Control Engineering
In this paper, the recursive filtering issue is investigated for an array of nonlinear bias-corrupted systems with a dynamic amplify-and-forward (AF) relay under the dynamic event-triggered scheme (DETS).
Dongyan Dai   +3 more
doaj   +1 more source

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