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Phd by thesis

Richard Lathe
- 01 Apr 1988 - 
- Vol. 332, Iss: 6166, pp 676-676
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TLDR
In this paper, a sedimentological core and petrographic characterisation of samples from eleven boreholes from the Lower Carboniferous of Bowland Basin (Northwest England) is presented.
Abstract
Deposits of clastic carbonate-dominated (calciclastic) sedimentary slope systems in the rock record have been identified mostly as linearly-consistent carbonate apron deposits, even though most ancient clastic carbonate slope deposits fit the submarine fan systems better. Calciclastic submarine fans are consequently rarely described and are poorly understood. Subsequently, very little is known especially in mud-dominated calciclastic submarine fan systems. Presented in this study are a sedimentological core and petrographic characterisation of samples from eleven boreholes from the Lower Carboniferous of Bowland Basin (Northwest England) that reveals a >250 m thick calciturbidite complex deposited in a calciclastic submarine fan setting. Seven facies are recognised from core and thin section characterisation and are grouped into three carbonate turbidite sequences. They include: 1) Calciturbidites, comprising mostly of highto low-density, wavy-laminated bioclast-rich facies; 2) low-density densite mudstones which are characterised by planar laminated and unlaminated muddominated facies; and 3) Calcidebrites which are muddy or hyper-concentrated debrisflow deposits occurring as poorly-sorted, chaotic, mud-supported floatstones. These

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References
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Ontology-based Information Retrieval

TL;DR: This thesis presents methods for introducing ontologies in information retrieval, and appears that the fuzzy set model comprises the flexibility needed when generalizing to an ontology-based retrieval model and, with the introduction of a hierarchical fuzzy aggregation principle, compound concepts can be handled in a straightforward and natural manner.
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Minimal Energy Clusters of Hard Spheres with Short Range Attractions

TL;DR: The ground states of hard-sphere clusters, in which n identical hard spherical particles bind by isotropic short-ranged attraction, are calculated by combining graph theoretic enumeration with basic geometry and analytically solving for clusters of n
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Real-space and reciprocal-space Berry phases in the Hall effect of Mn(1-x)Fe(x)Si.

TL;DR: This study provides the long-sought material-specific microscopic justification that, while the AHE is due to the reciprocal-space Berry curvature, the topological Hall effect originates in real- space Berry phases.
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Room temperature precipitation in quenched Al–Cu–Mg alloys: a model for the reaction kinetics and yield strength development

TL;DR: In this article, the microstructural evolution during low temperature ageing of two commercial purity alloys (Al 1.2Cu 1.6Mg 0.2Mn) was investigated.