... (in the Upper Coralline Limestone and underlying Greensand formations, above a ‘Blue Clay’) as well as from the main lower aquifer, near sea level (in the Globigerina Limestone and/or underlying Lower Coralline Limestone formations). [email protected] © 2022 History of Earth Sciences Society...

...Zakir Hossain; Tapan Mukerji; Jack Dvorkin; Ida L. Fabricius ABSTRACT The objective of this study was to establish a rock physics model of North Sea Paleogene greensand. The Hertz-Mindlin contact model is widely used to calculate elastic velocities of sandstone as well as to calculate the initial...

... including core analysis, capillary pressure measurements, NMR T 2 measurements and image analysis were carried out on sixteen greensand samples from two formations in the Nini field of the North Sea. Hermod Formation is weakly cemented, whereas Ty Formation is characterized by microcrystalline quartz cement...

...Zakir Hossain; Ida Lykke Fabricius; Helle Foged Christensen Abstract Analysis of greensand reservoirs all over the world has challenged geologists, engineers, and petrophysicsts. One challenge is to identify from core data the degree to which deformation of the reservoir rock affects hydrocarbon...

...Mikael Solymar; Ida L. Fabricius; Mike Middleton Abstract The effects of porosity and pore geometry on the fluid saturation and immiscible displacement of greensand reservoir rocks were investigated on eight samples from the North Sea basin. Dynamic Neutron Radiography (DNR) was used to image...

...Robert D. Winn, Jr. ABSTRACT Core and log data show that the marine, early to middle Albian “A” Sand of the Aptian to lower Cenomanian Greensand-Gault interval, North Celtic Sea Basin, offshore Ireland, was deposited as an approximately tabular sand body in shelf water depths. The “A” Sand...

...A. B. Hawkins; B. J. McConnell Abstract The loss in uniaxial compressive strength between UCS dry and UCS sat for 35 British sandstone types is discussed. The difference between UCS dry and UCS sat for the clay-rich Cretaceous Greensand was 78% while for the Siliceous Sandstone the strength...

...R. Kitching; B. Adams Summary A field experiment has been carried out in the Lower Greensand near Cambridge to test the feasibility of injecting, storing and recovering heat in this formation. Approximately 1500 m 3 of water at about 60°C were injected into the Lower Greensand over a period of 78...

...P. S. Boyer; E. A. Guinness; M. A. Lynch-Blosse; R. A. Stolzman Abstract Samples from eight outcrops along strike of the Cretaceous-age Marshalltown Formation show considerable variation in the proportions of different types of greensand pellet. The large, dark, very smooth ovoid pellets...

...Jean-Marie Triat; Gilles-Serge Odin; Johannes-Christoph Hunziker GeoRef, Copyright 2013, American Geosciences Institute. 1976 absolute age Apt Basin Apt France Cenomanian Cenozoic clastic rocks Cretaceous Europe France glauconite greensand K/Ar lithostratigraphy Mesozoic mica...

... Europe France greensand Lower Cretaceous Mesozoic mineral composition Oppedette paleogeography provenance Provence sand sedimentary petrology sedimentary structures sedimentation sediments structure turbidity currents Western Europe ...

...F. A. Middlemiss Abstract "Vermiform burrows, which are common in the lower Greensand, can be used to estimate the relative rate of sedimentation, repeated penetration by burrowing organisms being taken as indicating slow deposition, a single undisturbed penetration as indicating rapid deposition...