Am Tag von Thatchers Beerdigung

Für diesen Beitrag ist leider kein Abstract verfügbar. ---------

The Lewisian rocks of the Island of Tiree, Inner Hebrides

The research work presented in this thesis was undertaken to determine the nature and the relationships of the rocks which make up the Lewisian Complex on the Island of Tiree, and to attempt to interpret their metamorphic history. The rocks have been mapped and some 250 thin-sections examined in the laboratory, Twenty-one chemical analyses have been executed using rapid techniques. The complex has been found to consist predominantly of migmatites but there also occur some bodies of fairly homogeneous intermediate, basic and ultrabasic gneiss. The general outlines of these bodies are generally more or less conformable with the trend of the banding in the enclosing migmatite. The commonest type of migmatite is a light to medium grey, generally well banded rook, the principal mafia components of which are hornblende and biotite. It is designated the Banded Migmatite. Two other varieties, the Massive Migmatite and the Contorted Migmatite, occur in lesser amount, The Massive Migmatite contains varying amounts of clinopyroxene and ortho-pyroxene in addition to some hornblende and minor biotite; banding within it is generally weakly developed and sometimes completely absent. The Contorted Migatite has a streaky rather than banded appearance and irregular contortions and crenulations s are common within it. The principal mafic component of this phase of the migmatite is biotite and, at one locality, it also contains varying amounts of orthopyroxone and garnet. The mineral assemblage in the Banded Migmatite is indicative of crystallization in the upper amphibolites facies end that in the Massive Migmatite suggests lower granulate facies. The presence of both orthopyroxene and biotite in the Contorted Migmatite indicates that the assemblage in that phase is one transitional between the amphibolite and the granulite facies and that equilibrium was probably not attained within it during metamorphism. Throughout the migmatite mass there occur 'resister' (Road, 1957) bands and lenses of basic, ultrabasic and met sedimentary rock. These bodies of 'resister' rook are in almost all cases extended parallel to the banding of the enclosing sigcatite. Concordant and transgressive veins and hands of acid pegmatite are common and 'resister' bands are often penetrated and disrupted by pegmatitie materiel. The 'resister' bands appear, therefore, to have been in a much more brittle condition during migmatitization than was the enclosing rock. The mineral assemblages within the broader 'resister' bands are often suggestive of crystallization under lower granulite facies conditions but in the narrower bands and lenses and in the marginal, zones of the broad hands, amphibolite facies assemblages occur; chemical analyses suggest that the mineralogical transformations in the 'resister' bands were essentially isochemical. A series of analyses between the centre and the margin of a large ultrabasic lens reveal that its marginal zone is richer n silica, lime, cinema and awnina and alkalies poorer in magnesia and iron oxides, compared with its interior. The contamination of the marginal, zone is considered to have taken place during the migmatitization of the enclosing rocks when fluids worn available to facilitate diffusion. Isoclinal folds with axial planes parallel to the banding of the migmatite occur in occasional, basic lenses, Their presence demonstrates that the palacosome had been folded prior to migmatitization and that the same stress system probably prevailed during both these processes, Textural evidence, although not conclusive, suggests that in the broad btzsia 'resistor' bands the pyroxene has, at least in part, formed at the expense of pre-existent hornblende, Furthermore, there is no textural evidence, such as the rimuning of pyroxene grains by amphibole, to suggest that the amphibole assemblages in the marginal zones of these bends have formed by diaphthoresis of a granulite facies assemblage

Great War Dundee:featuring Ragtime soldier

This comic is part of the Great War Dundee (GWD) Hidden Histories project, which was made possible thanks to the generous support of The National Lottery Heritage Fund. It was developed by Professor Christopher Murray and Phillip Vaughan and tells the story of the effect of the Great War on Dundee, and its aftermath, and draws on many of the resources and knowledge that the GWD Partnership has introduced into the public domain over the last few years. The comic contains a story written by legendary comics creator Pat Mills, who worked at DC Thomson before creating the hugely successful British science fiction comic 2000AD (1977-present)

Analysis of musculoskeletal and breast tumours by fast field-cycling MRI

Peer reviewedPublisher PD

Medical Applications of Fast Field Cycling MRI

Non peer reviewedPublisher PD

Collective animal navigation and migratory culture: From theoretical models to empirical evidence

Animals often travel in groups, and their navigational decisions can be influenced by social interactions. Both theory and empirical observations suggest that such collective navigation can result in individuals improving their ability to find their way and could be one of the key benefits of sociality for these species. Here, we provide an overview of the potential mechanisms underlying collective navigation, review the known, and supposed, empirical evidence for such behaviour and highlight interesting directions for future research. We further explore how both social and collective learning during group navigation could lead to the accumulation of knowledge at the population level, resulting in the emergence of migratory culture

Anthropological contributions to historical ecology: 50 questions, infinite prospects.

This paper presents the results of a consensus-driven process identifying 50 priority research questions for historical ecology obtained through crowdsourcing, literature reviews, and in-person workshopping. A deliberative approach was designed to maximize discussion and debate with defined outcomes. Two in-person workshops (in Sweden and Canada) over the course of two years and online discussions were peer facilitated to define specific key questions for historical ecology from anthropological and archaeological perspectives. The aim of this research is to showcase the variety of questions that reflect the broad scope for historical-ecological research trajectories across scientific disciplines. Historical ecology encompasses research concerned with decadal, centennial, and millennial human-environmental interactions, and the consequences that those relationships have in the formation of contemporary landscapes. Six interrelated themes arose from our consensus-building workshop model: (1) climate and environmental change and variability; (2) multi-scalar, multi-disciplinary; (3) biodiversity and community ecology; (4) resource and environmental management and governance; (5) methods and applications; and (6) communication and policy. The 50 questions represented by these themes highlight meaningful trends in historical ecology that distill the field down to three explicit findings. First, historical ecology is fundamentally an applied research program. Second, this program seeks to understand long-term human-environment interactions with a focus on avoiding, mitigating, and reversing adverse ecological effects. Third, historical ecology is part of convergent trends toward transdisciplinary research science, which erodes scientific boundaries between the cultural and natural