2,891 research outputs found
High-Excitation Hole States in the (p,d) Reaction
This work was supported by National Science Foundation Grant PHY 76-84033 and Indiana Universit
High-Excitation Hole States in the 24-Mg(p,d) Reaction
This work was supported by National Science Foundation Grants PHY 76-84033A01, PHY 78-22774, and Indiana Universit
High Excitation Hole States in the (p,d) Reaction
This work was supported by National Science Foundation Grant PHY 75-00289 and Indiana Universit
Lithostratigraphical subdivision of the Sherwood Sandstone Group (Triassic) of the north-eastern part of the Carlisle Basin, Cumbria, and adjacent parts of Dumfries and Galloway, UK.
This report presents a review of the history of the lithostratigraphical subdivision of the Triassic
Sherwood Sandstone Group of the north-eastern part of the Carlisle Basin, Cumbria, and
adjacent parts of Dumfries and Galloway, UK. Two formations, the St Bees Sandstone and
Kirklinton Sandstone, have been mapped in the past. However, previous workers have found
considerable difficulty in consistently identifying, defining and mapping the Kirklinton
Sandstone Formation. Moreover, previous accounts of the sandstones in the Carlisle area appear
to suggest that the succession there differs in several key aspects from its correlatives in other
parts of Cumbria and, in particular, the adjacent offshore area. As a result of a short period of
field work in the area, it is concluded that the principal lithological change is between mainly
fine-grained sandstones, that are generally or commonly micaceous and contain common or
numerous mudstone interbeds, in the lower and middle parts of the group, and fine- to coarsegrained
sandstones with rare or no mica and mudstone partings at the top of the group. This
change occurs within the Kirklinton Sandstone Formation as previously mapped, and it is
suggested that this unit is now invalid. Several options are considered as to how the group should
be subdivided and the nomenclature to be adopted. All options presently have some associated
problems, but the adoption of the same terminology as in the continuous offshore is suggested,
i.e. St Bees Sandstone Formation below (subdivided where possible into Rottington Sandstone
and Calder Sandstone Members) and Ormskirk Sandstone Formation above
Effect of nitrogen supplementation and Zilpaterol-HCl on urea recycling in steers consuming corn-based diets
Cattle have the innate ability to recycle nitrogen absorbed post-ruminally back to the
rumen as endogenously synthesized urea. Urea returning to the rumen provides an
additional opportunity for ruminal microbes to benefit from nitrogen absorbed postruminally.
Urea recycling may provide a significant benefit to cattle when protein
requirements of ruminal microbes are high or when large amounts of the dietary
protein escape ruminal degradation
Petrography and Geochemistry of Metals in Almahata Sitta Ureilites
Ureilites are ultramafic achondrites, predominantly composed of olivine and pyroxenes with accessory carbon, metal and sulfide. The majority of ureilites are believed to represent the mantle of the ureilite parent body (UPB) [1]. Although ureilites have lost much of their original metal [2], the metal that remains retains a record of the formative processes. Almahata Sitta is predominantly composed of unbrecciated ureilites with a wide range of silicate compositions [3,4]. As a fall it presents a rare opportunity to examine fresh ureilite metal in-situ, and analyzing their highly siderophile element (HSE) ratios gives clues to their formation. Bulk siderophile element analyses of Almahata Sitta fall within the range observed in other ureilites [5]. We have examined the metals in seven ureilitic samples of Almahata Sitta (AS) and one associated chondrite fragment (AS#25)
Deep Hole States in the Mirror Nuclei 23-Mg and 23-Na
This work was supported by National Science Foundation Grant PHY 76-84033 and Indiana Universit
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