Results 121 to 130 of about 4,384 (164)

Investigating the Microstructure of Compacted Crushed Callovo-Oxfordian Argillite

Soil Behavior and Geo-Micromechanics, 2010
Some aspects of the macroscopic geotechnical behavior of compacted soils are highly related to their microstructure. This paper presents a qualitative and quantitative microstructure investigation of compacted samples made up of crushed Callovo-Oxfordian argillite.
Tang, Chaosheng, Tang, Anh Minh, Cui, Yu-Jun, Delage, Pierre, Shi, Bin, Schroeder, Christian   +5 more
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Upper Oxfordian palaeogeography of southern England

Palaeogeography, Palaeoclimatology, Palaeoecology, 1968
Abstract The Upper Oxfordian of southern England consists of a variable series of clays, sands and limestones known as the Corallian Beds. Six sedimentary facies are distinguished: (1) phyllosilicate clay facies (background sedimentation to other facies); (2) quartz sand facies (intertidal sands); (3) coralline facies (coral patch reefs and ...
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In situ diffusion experiments in Callovo-Oxfordian mudstone

Geochimica et Cosmochimica Acta, 2006
ANDRA, Underground Research Laboratory RD 960-55290 BURE, France (sarah.dewonck@andra.fr) CEA Saclay DEN/DPC/SECR, 91191 Gif sur Yvette Cedex, France (michael.descostes@cea.fr) CEA Saclay DEN/DM2S/SFME, 91191 Gif sur Yvette Cedex, France (alain.cartalade@cea.fr) CEA Saclay DRT/DeTeCS/SSTM, 91191 Gif sur Yvette Cedex, France (patrick.brisset@cea.fr ...
Dewonck, S., Descostes, M., Blin, V., Tevissen, E., Radwan, J., Poinssot, C., Cartalade, A., Brisset, P., Coelho, D.   +8 more
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The ammonites of the Bukowskii Subzone of the Oxfordian of Skye

Scottish Journal of Geology, 1970
Synopsis The ammonite fauna of the Bukowskii Subzone of the Cordatum Zone consists of large numbers of relatively few species of cardioceratids and aspidoceratids. The fauna of this zone in the Staffin Shales can be correlated with that of the Bukowskii subzone of the English succession, although in Skye Cardioceras
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Ironstones in the Upper Oxfordian of southern England

Sedimentology, 1974
The Upper Calcareous Grit, the last of the four upward shallowing cycles that comprise the Corallian Beds of southern England, is relatively enriched in iron minerals, having local developments of chamosite oolite mudstone and much more widespread deposits of sand and mud containing variable amounts of siderite and disseminated chamosite. The chamosite
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Oxfordian Sedimentation in Western Interior United States

AAPG Bulletin, 1974
Abstract Upper Jurassic (Oxfordian) sediments of the western interior United States were deposited in part of an epicontinental seaway which extended south from the present arctic. This seaway contained a complex of tectonic elements which influenced significantly the geographic distribution of depositional environments. Sedimentation
Robert L. Brenner, David K. Davies
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Characterization of Dichotomoceras  in the Oxfordian of Kachchh

Journal of the Geological Society of India, 2009
Abstract We report here the first Dichotomoceras of the Indian subcontinent at Kantkote (Wagad) in the proximal most exposed part of the Kachchh Basin. This is further addition to the significant enlargement of the Oxfordian ammonoid record made earlier (Krishna et al. 1994, 1995, 1998, 2000). Near continuous presence of ammonoids has
Jai Krishna, Bindhyachal Pandey, Deo Brat Pathak   +2 more
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Suction effects in deep Callovo-Oxfordian claystone

Géotechnique Letters, 2014
An experimental programme was carried out with the aim of investigating suction effects in a specimen of Callovo-Oxfordian claystone extracted at great depth (479 m). A specimen that was saturated in an oedometer with limited swelling exhibited significant swelling and desaturation upon quick unloading at constant water content.
Delage, Pierre, Menaceur, H., Tang, Anh Minh, Talandier, J.   +3 more
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Oxfordian Sedimentation in Western Interior, USA: ABSTRACT

AAPG Bulletin, 1972
Upper Jurassic Oxfordian sediments of Wyoming, Montana, and eastern Idaho were deposited in part of an elongate inland seaway extending southward from the present Arctic. This seaway contained a complex of tectonic elements which influenced significantly the geographic distribution of depositional environments.
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THE LOWER OXFORDIAN (UPPER JURASSIC) OF NORTH YORKSHIRE

Proceedings of the Yorkshire Geological Society, 1983
SUMMARY Sedimentation during the Lower Oxfordian in North Yorkshire proceeded in two contrasting phases. The first, a shallow water sedimentation phase of the scarburgense Subzone age, was succeeded by deeper water conditions as the Callovian/Oxfordian transgression reached its maximum extent and the ...
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