THE mineral tacharanite has been recently re-examined by Cliff et al. (1975). They worked on material from the original locality, Portree, in Scotland (Sweet, I961) and from a few new European localities described between I97I and I974. None of the post-Sweet authors, however, refer to the second discovery of the mineral from Tasmania where it was identified by this writer in I961 and recorded ...

Rolling-based seismic isolation systems, in which rollers of circular or non-circular section are used, are less expensive and easier to manufacture. However, this type of isolation suffers from either lack of restoring or re-centering capability, or weakness against uplift forces. To resolve the first shortcoming the use of elliptical as well as pillow-shape rolling parts has been suggested, a...

Melting of mafic veins in a marble-cake mantle may play an important role in generating isotopic and chemical heterogeneities in mid-ocean ridge and ocean island basalts. Mafic veins have lower solidi than mantle peridotite and will be preferentially sampled during partial melting, particularly at low melt fractions. However, the abundance of mafic components in the mantle or their role during ...

The fossil biota of the upper Valanginian–lower Hauterivian sediment hosted vent (SHV) environment Zeng?várkony comprises 39 species, 55 genera and higher taxa representing seven phyla. Thirteen these are reported from Zeng?rvárkony as new species or subgenera/genera, this high endemicity is linked to a unique palaeoenvironment. palaeoenvironment developed in an outer shelf epicontinental setti...

Intervention Preoperatively, patients were allocated to have a pillow placed under the ipsilateral thigh of the injured hip in the resting position of the extremity (n=50, pillow group) or to placement of 5 pounds of skin traction, applied by fitting a foam traction boot to the injured extremity and then suspending a 5 pound weight over a pulley at the foot of the bed (n=50, traction group). Al...

We present the results of phase equilibrium experiments carried out on basanite and phonotephrite lavas from Ross Island, Antarctica. Experiments were designed to reproduce the P–T–X–fO2 conditions of deep and intermediate magma storage and to place constraints on the differentiation of each of the two predominant lava suites on the island, which are thought to be derived from a common parent m...

The Mauna Loa (ML) and Mauna Kea (MK) lavas recovered by the Hawaii Scientific Drilling Project (HSDP) include aphyric to highly olivine-phyric basalts. The average olivine phenocryst abundance in the reference suite of ML flows is 14.5 vol % (vesicle-free and weighted by the flow thickness), while the average abundances of olivine in the reference suites of the MK alkalic and tholeiitic basalt...

We discuss from a practical point of view a number of issues involved in writing Internet and WWW applications using LP/CLP systems. We describe PiLLoW, an Internet and WWW programming library for LP/CLP systems which we argue signiicantly simpliies the process of writing such applications. PiLLoW provides facilities for generating HTML structured documents, producing HTML forms, writing form h...

Jonathan W. Pillow, Jonathon Shlens, Liam Paninski, Alexander Sher, Alan M. Litke, E. J. Chichilnisky, Eero P. Simoncelli 1 Gatsby Computational Neuroscience Unit, UCL 2 The Salk Institute, La Jolla, California 3 Department of Statistics and Center for Theoretical Neuroscience, Columbia University 4 Santa Cruz Institute for Particle Physics, University of California, Santa Cruz 5 Howard Hughes ...