bluuebunny/crossref_metadata_2025 huggingface dataset:
Geochemistry of peridotites, gabbros and trondhjemites of the Ballantrae complex, SW Scotland
Authors: Jelínek E. , Souček J. , Řanda Z. , Jakeš P. , Bluck B. J. , Bowes D. R.
Published: November 2011

Major and trace element, including REE, analytical data are used as bases for interpreting the petrogenesis of the major igneous components of the northern part of the Ballantrae complex which occurs in the southwestern part of the Midland Valley of Scotland. Most of the peridotite, now serpentinised, is similar to ultramafic rocks in other ophiolite complexes. Mean crystallisation conditions, determined on the basis of co-existing orthopy-roxenes and clinopyroxenes for the dominant peridotite and minor pyroxenite were 1060 (±60)°C—20 (±2) kb and 1240 (±89)°C—25 (±25) kb, respectively. These rocks, of mantle provenance, have compositions consistent with being residues after the extraction of 20–30% of tholeiitic material from the mantle. The presence among them of a rock whose REE contents indicate that it is a plagioclase peridotite, point to the tectonic incorporation of the products of a high level magma chamber.

The mafic parts of the complex have tholeiitic characteristics and developed between 1300° and 1100°C. They do not represent primary mantle melt but fractionated material. Clinopyroxene was the main fractionating phase and more than 10% fractional crystallisation is indicated with increase from gabbros, through beerbachites (metadolerites) of a sheeted dyke complex and pillow lavas, to microgabbros and pyroxene diorites. Biotite diorites and trondhjemites represent the most fractionated products, the latter having affinities with ophiolitic plagiogranites.

The beerbachites of the sheeted dyke complex do not all represent the same stage of fractionation. The pillow lavas have REE patterns similar to rocks found in marginal basins but are markedly different from pillow lavas from the Highland Border Complex in Arran, near the northern margin of the Midland Valley.
Provenance of the Old Red Sandstone: Pb isotope evidence from Arran, western Scotland
Authors: Dickin A. P.
Published: November 2011

Old Red Sandstone sediments from Arran in western Scotland yield an array of Pb isotope compositions whose slope corresponds to an age of 1830 ± 400 Ma. These compositions are not consistent with a significant contribution of material from the Southern Highlands, Midland Valley, or Southern Uplands, but are similar to the Torridonian sandstones of NW Scotland. Bearing in mind the probable Laxfordian provenance of the Torridonian assemblage, this points to a source for the Old Red Sandstone in a crustal block of early Proterozoic age corresponding to the age of the Laxfordian episode. Since such a source is not presently in a position to yield the Old Red Sandstone, strike-slip movement along the Highland Boundary fault is a strong possibility.
Geochemical contrasts between late Caledonian granitoid plutons of northern, central and southern Scotland
Authors: Stephens W. E. , Halliday A. N.
Published: November 2011

New major- and trace-element data for granitoid plutons from the Grampian Highlands, the Midland Valley and the Southern Uplands of Scotland are presented and discussed. The study is restricted to ‘late granitoids’ (all younger than 430 Ma); the term ‘granitoid’ is used in a wide sense to encompass all plutonic components of a zoned intrusion of this age, sometimes including diorites and ultrabasic cumulate rocks. The data indicate that as a whole the province is chemically high-K calc-alkalic. Other notable enrichments are in Sr and Ba, and a marked geographical difference in these trace-elements is found between plutons of the SW Grampian Highlands and those of the Southern Highlands, the Midland Valley, and the Southern Uplands. Plutons of the NE Highlands tend to be more geochemically evolved than those further SW and those of the Midland Valley and Southern Uplands.

When petrographical and geochemical data are considered, three plutonic suites are recognised: (1) the Cairngorm suite comprising plutons of the NE Highlands, (2) the Argyll suite comprising plutons from the SW Highlands, and (3) the S of Scotland suite comprising plutons from the Southern Highlands, Midland Valley and the Southern Uplands excluding Criffell and the Cairnsmore of Fleet. It is proposed that the more acidic granitoids are dominantly the products of I-type crustal sources, but certain diorites and the more basic members of zoned plutons have a substantial mantle component. The elevated Sr and Ba levels in granitoids of the Argyll suite may reflect the influence of incompatible-element-rich fluids from the mantle in the petrogenesis of this suite. The relatively anhydrous pyroxene-mica diorites of the S of Scotland suite are richer in Ni and Cr and appear to represent mantle-derived melts. The relationships between these data and already published isotopic data are discussed.
Tectonic development and stratigraphy at the western margin of the Caledonides: Islay and Colonsay, Scotland
Authors: Fitches W. R. , Maltman A. J.
Published: November 2011

Islay and Colonsay occupy a crucial position in the Caledonian frontal zone S of the Great Glen fault in western Scotland. However, some of the stratigraphical units which comprise these islands are of doubtful age as they have tectonic boundaries and contain no fossils or distinctive lithological components. New information is presented here on the deformational histories and styles of the rocks and this has prompted a reassessment of their stratigraphical position and a major reinterpretation of t0he tectonism of this frontal zone.

In contrast to the conventional view, all the stratigraphical units have been deformed together during a regional shearing event. The Colonsay Group contains intrafolial and sheath folds and has a pronounced linear fabric which is parallel to grain elongations in parts of the Bowmore and Dalradian sequences. Most junctions between the Colonsay Group and basement of the Lewisian complex are highly sheared. The junction between the Bowmore Group and Dalradian Supergroup is also tectonised and is normally referred to as the Loch Skerrols thrust but here as a shear zone. This structure is shown not to be a profound discontinuity, alone representing the Caledonian front S of the Great Glen fault, but one element in a major flat-lying NW-directed ductile shear zone. The Caledonian front therefore lies to the W of the islands.

The Bowmore Group is suggested to be a lateral equivalent of the Crinan Grits in the Dalradian Supergroup, lying in the overturned sheared limb of the Islay anticline. The age of the Colonsay Group remains enigmatic; the identification of previously unrecognised early structures which may precede shearing in the Grampian episodes of the Caledonian orogenic cycle allows the possibility of a pre-Caledonian deformation of the Group.
Oxroadopteris parvusgen. et sp. nov.: a protostelic Lower Carboniferous pteridosperm from Oxroad Bay, East Lothian, Scotland
Authors: Long Albert G.
Published: November 2011

Oxroadopteris parvusgen. et sp. nov. is described from a single incomplete curved stem, 12 cm long and 8 mm diameter, having a cylindrical exarch protostele and sparganum outer cortex. Attached are 8 incomplete bifurcate petioles in probably 2/5 phyllotaxy. Each petiole has a swollen base with sclerotic nests. Petiole lengths increase upwards. Each petiolar trace is small, U-shaped in cross-section, bipolar, and divides to form similar smaller bundles in two secondary rachises.
Devonian miospores from Papa Stour, Shetland
Authors: Marshall J. E. A.
Published: November 2011

Devonian miospores have been discovered in the previously poorly dated Old Red Sandstone volcanic sequence of Papa Stour. They occur at two sites in minor sedimentary deposits between the lavas, and fossil fish remains are also present. The age range of the miospores is mid Eifelian to early Givetian, probably more specifically late Eifelian and from a position close to the Achanarras horizon. This allows a correlation of the Papa Stour volcanic sequence with that of the Upper Stromness Flags of Orkney and not the tuffaceous horizons in the Eday Sandstones. The good preservation and composition of the miospores indicate a close similarity to other Orcadian Basin sediments and support the view that the Old Red Sandstone sequences W of the Melby Fault have affinities with the Orkney and Caithness successions rather than with Shetland. The age of the volcanic sequence also provides a valuable datum point for plate tectonic models based on the geochemistry of Old Red Sandstone lavas.
The age of the Watch Hill Grits (Ordovician), English Lake District: structural and palaeogeographical implications
Authors: Molyneux S. G. , Rushton A. W. A.
Published: November 2011

The Watch Hill Grits, in the lower Ordovician Skiddaw Group of the Lake District, are dated as latest Tremadoc or earliest Arenig (older than theDidymograptus deflexusBiozone) by means of acritarchs and graptolites. This places them lower in the Skiddaw sequence than previous authors supposed, and they are thought to have been thrust southwards over younger Arenig rocks. The interval inferred for the Watch Hill Grits brackets theTetragraptus approximatusBiozone and its equivalents in Australasia, S China, N America and Scandinavia. The dating of the Watch Hill Grits suggests that equivalents of theTetragraptus approximatusBiozone are present in N England and that sedimentation continued in the Lake District during a period of global eustatic regression. Other beds in the Lake District and on the Isle of Man have yielded similar acritarch assemblages and are probably correlatives. Five new acritarch taxa are described:Caldariolagen. nov.,Acanthodiacrodium? dilatum, Stellechinatum sicaforme and Striatotheca prolixaspp. nov., andTetraniveum arenigum cumbriensesubsp. nov.; one new combination,Caldariola glabra(Martin) comb, nov., is proposed.
REE and trace element variations in accessory minerals and hornblende from the strongly zoned McMurry Meadows Pluton, California
Authors: Sawka Wayne N.
Published: November 2011

The zoned McMurry Meadows Pluton has been examined for REE and trace element variations in hornblende, sphene, apatite, allanite and zircon. Mineral separates (17), were analysed by INAA from four granitoids spanning the compositional range of the pluton (60%–75% SiO2). All of the phases examined exhibit significant compositional variations, with sphene having the largest changes in chondrite normalised REE patterns. Compositional variations in these minerals are related to paragenetic sequence and, as the whole rocks become more evolved, increases in partition coefficients; not subsolidus re-equilibration. Hornblende is only a dominant site for REE in granites where sphene is a later crystallising phase, otherwise allanite (LREE only) and sphene are the dominant whole rock sites for REE. Zircon and apatite normally contribute less than 10% each to the whole rock abundance of REE. Three zircon samples contain only small compositional differences and are interpreted as having crystallised from the bulk magma prior to differentiation. Zr variation in the pluton is nonlinear, first increasing and then decreasing with whole rock fractionation. A simple process, analogous to “restite unmixing” applied to the Zr variation, defines a bulk magma composition of about 63% SiO2, before differentiation of the zoned pluton. The modelled bulk magma need only have evolved by about 2·5% silica and still have produced the entire compositional range (60–75% SiO2) observed in the pluton.
A global synthesis of the latest Ordovician Hirnantian brachiopod faunas
Authors: Jia-yu Rong , Harper David A. T.
Published: November 2011

A global review of new and existing data on the distribution of uppermost Ordovician (Hirnantian) brachiopods indicates the existence of at least three biogeographically distinct faunas. The typical Hirnantia fauna characterised subtropical and temperate latitudes and comprised a variety of ecological associations; the fauna reached its acme during the bohemicus and uniformis zones. Atypical Hirnantia faunas, developed marginal to Gondwana, are of low diversity and have few species in common with the typical Hirnantia fauna; their spatial distribution probably marked the margin of the polar ice sheets. The extinction of the Hirnantia fauna occurred in response to changes in sea level. Diverse and quite different faunas, including those from the Midcontinent of North America, Kolyma, the Oslo Region and probably Anticosti Island, occupied equatorial latitudes during the latest Ordovician. The Holorhynchus fauna, on evidence to date, predates the Hirnantia fauna.
Evolution of a machair landscape: pollen and related studies from Benbecula, Outer Hebrides, Scotland
Authors: Whittington Graeme , Edwards Kevin J.
Published: November 2011

Low altitude sandy plains (machair) are a common feature of the Atlantic coasts of the Outer Hebrides. They formed as a result of shoreward movement of material consequent upon a rise in Holocene sea levels. A number of earlier, partially inconclusive, investigations into machair evolution proposed that fuller understanding could arise from an examination of inter-tidal organic deposits, in so far as these could provide a fossil proxy record of the processes involved in machair formation. Study of a series of inter-tidal peats sites located on a beach platform at Borve, island of Benbecula, provided both spatial and chronological evidence for sand movement as well as furnishing new data on vegetational and environmental history. The pollen diagrams show a flora in whichCalluna vulgaris(heather) and Poaceae (grass) are frequent dominants, while such arbroeal taxa asBetula(birch) andCorylus avellana-type(cf. hazel) are notable. The existence of birch–hazel woodland for the periodc.8855–6190 BP might conceivably have had a retarding effect on sand movement. Later cycles of sand movement would not have met such obstruction with the consequence that sand mobility and machair plain evolution could have been faster. Sand arrival at the seaward site (Borve 3), is dated toc.6735 BP and it continued untilc.6045 BP, after which it slowed before increasing again from around 5990 BP. This sand incursion produced a machair plain over the Borve sites as part of a continuous, but variously paced, marine and aeolian process. The presence of charcoal from c. 6860 BP, with a major increase in charcoal to pollen ratios by 6190 BP, may suggest that natural or intentional burning of the vegetation cover of the machair occurred in Mesolithic times; if the burning was anthropogenic in origin, then it pushes the possible involvement of humans in machair destabilisation to a time long before the previously proposed Neolithic period. A wet slack deposit, dated to 3400 ± 70 BP, indicates a time when sand movement overwhelmed the area around the landward site (Borve 1) and when the rate of sand movement was likely to have been impeded. The data from Borve suggest that evolution of machair landforms occurs at a slow, variable rate and that there is considerable long-term stability.
Trilobites from the Ordovician Balclatchie and lower Ardwell groups of the Girvan district, Scotland
Authors: Tripp R. P.
Published: November 2011

All trilobites known from the lower and upper Balclatchie and lower Ardwell groups of the Girvan district are listed and frequencies recorded. Eight new species are described, a number of generic assignments are new, and hitherto undescribed parts are illustrated. Of the 60 named species, 19 occur in the lower and upper Balclatchie and lower Ardwell groups; the upper Balclatchie Group yields the largest number of species. The assemblage is generally indicative of outer shelf conditions of deposition; a deeper water association at certain Balclatchie Group localities consists of 5 species identical with, or closely related to, species from the Liberty Hall facies of the lower Edinburg Formation of Virginia, U.S.A. This deeper water element constitutes a significantly larger proportion of the trilobite assemblages at certain localities than it does at others. A further 8 species from the Balclatchie Group are allied to lower Edinburg Formation forms, thus confirming the evidence of the brachiopods regarding the strong North American affinities of the fauna. The Balclatchie conglomerate is considered to be the result of a catastrophic event accompanied by slumping near the shelf edge causing the instantaneous entombment of the fauna.
Identification of toxic mineral dusts using mammalian cells
Authors: Davies R. , Chamberlain M. , Brown R. C. , Griffiths D. M.
Published: November 2011

Cell culture systems have been developed to assess the potential pathogenicity of mineral dusts. The in vitro cytotoxicities of a variety of dusts towards mouse peritoneal macrophages, Chinese hamster lung cells (V79 cell line) and human alveolar type II cells (A549 cell line) were investigated.

Non-pathogenic dusts were found to be inert in vitro. Fibrogenic non-fibrous dusts such as silica were only cytotoxic towards macrophages. Fibrous dusts which are both fibrogenic and carcinogenic in vivo are cytotoxic towards all three cell types, their cytotoxicity being dependent on fibre size. The size range important for the observed biological effect is longer than about 8 μm and thinner than about 1·5 μm.
Palaeoclimatic information from ice cores: the Vostok records
Authors: Jouzel J. , Petit J. R. , Raynaud D.
Published: November 2011

Ice deposits from Greenland and Antarctic ice sheets have stored over long periods of time information about the climate and environment of our planet. Attention will be focused on the 2083 m Vostok Antarctic ice core which represents a unusually long record (160 000 ka) due to the low accumulation rate (∼2 g cm−2a−1) and the rather uniform conditions of ice flow. This ice core provides a unique opportunity to obtain several palaeo-data such as temperature, accumulation (precipitation), aerosol loading, CO2 and trace gases over a full glacial-interglacial climatic cycle.

The Vostok temperature, deduced from the interpretation of the deuterium content, and the CO2 records show a large 100 ka signal with a change of the order of 10°C and 70 ppmv respectively. The two records are closely correlated and both display shorter periodicities characteristic of the earth orbital parameters. CH4 concentrations also show variations from about 0·35 to about 0·65 ppmv linked with the glacial-interglacial warming. These features suggest a fundamental link between the climatic system and the carbon cycle and stress the role of radiatively active gases in climatic changes.

The accumulation (precipitation) record appears to be governed by temperature with values during the coldest stages reduced by a factor of 2 with respect to the present rate. Ice deposited during these coldest stage is also characterised by high concentration of marine and terrestrial aerosols; these peaks probably reflect strengthened sources and meridional transport during full glacial conditions, linked to higher wind speed, more extensive arid areas on surrounding continent and a greater exposure of continental shelves.
Physical interactions within a coupled climate model over the last glacial–interglacial cycle
Authors: Berger A. , Fichefet Th. , Gallée H. , Marsiat I. , Tricot C. , van Ypersele J. P.
Published: November 2011

A two-dimensional (2-D) seasonal model has been developed for simulating the transient response of the climate system to the astronomical forcing. The atmosphere is represented by a zonally averaged quasi-geostrophic model which includes accurate treatment of radiative transfer. The atmospheric model interacts with the other components of the climate system (ocean, sea-ice and land surface covered or not by snow and ice) through vertical fluxes of momentum, heat and humidity. The model explicitly incorporates surface energy balances and has snow and sea-ice mass budgets. The vertical profile of the upper-ocean temperature is computed by an interactive mixed-layer model which takes into account the meridional turbulent diffusion of heat. This model is asynchronously coupled to a model which simulates the dynamics of the Greenland, the northern American and the Eurasian ice sheets. Over the last glacial–interglacial cycle, the coupled model simulates climatic changes which are in general agreement with the low frequency part of deep-sea, ice and sea-level records. However, after 6000 yBP, the remaining ice volume of the Greenland and northern American ice sheets is overestimated in the simulation. The simulated climate is sensitive to the initial size of the Greenland ice sheet, to the ice-albedo positive feedback, to the precipitation-altitude negative feedback over the ice sheets, to the albedo of the aging snow and to the insolation increase, particularly at the southern edge of the ice sheets, which is important for their collapse or surge.
Regional and tectonic implications of parallel Caledonian and Permo-Carboniferous lamprophyre dyke swarms from Lismore, Ardgour
Authors: Morrison M. A. , Hendry G. L. , Leat P. T.
Published: November 2011

Geochemical data are presented for 166 minor intrusions collected across the axis of the Ardgour swarm in the Isle of Lismore. The intrusions can be divided into: an alkali basalt-camptonite-monchiquite group resembling other Scottish Permo-Carboniferous dykes; a group of calc-alkaline (shoshonitic) lamprophyres, diorites and porphyrites with affinities to the late Silurian-early Devonian appinite suite of Scotland; and Tertiary dolerites. The different groups cannot be unambiguously distinguished in the field and secondary alteration precludes petrographic division in many cases. The data indicate that Caledonian and Permo-Carboniferous lamprophyres have probably been confused in previous accounts of dyke distributions in the region. In Lismore the two groups have identical azimuths but the Caledonian intrusions appear to have a greater aggregate volume. The implications for tectonic and regional models of the area are discussed.
High-level emplacement of an olivine–dolerite sill into Namurian sediments near Cardenden, Fife
Authors: Walker Brent H. , Francis E. Howel
Published: November 2011

Archival and recent boreholes over an area of c. 3 km2 have revealed complex magma-host interaction at the termination of an olivine–dolerite sill in Fife. The sill interior has zones rich in plastically deformed, vesiculated heterogeneous sediment surrounded by amygdaloidal basalt. Sediments at the contacts have been reconstituted and enclose blebs of chilled vesicular basalt. Intrusion into low rank coal seams has produced multicomponent tuffisite. A vertically nested and laterally fingered sill front is envisaged as having propagated down dip under a thin cover (<500 m) of wet Namurian sediments. Non-explosive bulk interaction of fluidised sediment and devolatilising magma occurred at intrusive contacts. Steam explosivity was more vigorous where lobes of magma repeatedly intruded moist lignite, to produce compositionally banded tuffisite rich in basalt clasts and coal fragments. The hydrovolcanic explosions did not give rise to surface eruptions because the low volumes of porewater and the high permeability and low tensile strength of the lignite prevented a build-up of high pressure steam.
Emplacement of alkali-dolerite sills relative to extrusive volcanism and sedimentary basins in the Carboniferous of Fife, Scotland
Authors: Francis E. Howel , Walker Brent H.
Published: November 2011

Namurian alkali-dolerites in W and central Fife comprise up to nine component sills. These have three-dimensional shapes which are directly related to penecontemporaneous structures in the sedimentary host rocks. Two forms of control are identified. Basinal control is apparent where restored sill geometry shows thickening towards the bottoms of saucer-shapes which mimic sediment disposition at the time of emplacement. Fault control is evidenced by sills which change horizon along extensive E–W fractures once assumed to be entirely post-Carboniferous but now confirmed as growth-faults.

There are no associated dykes representing likely feeders comparable with those of the later tholeiitic Midland Valley Sill, but evidence is presented to suggest that at least some of the alkali-dolerite magma reached sill intrusion levels through volcanic pipes.
Comparative physiology as a tool for investigating the evolutionary routes of animals on to land
Authors: Little Colin
Published: November 2011

Although many physiological characteristics are very labile, it is proposed that some are stable enough to provide evidence concerning the routes by which terrestrial animals moved on to land. Osmotic tolerance and osmoregulatory ability are investigated first. Marine littoral invertebrates tolerate wide osmotic changes but osmoregulate little. Freshwater invertebrates osmoregulate well, but over a narrow range. Terrestrial prosobranchs of the family Pomatiasidae, which have wide tolerance, may have originated directly from the sea. The Cyclophoridae, which are intolerant, may have moved to land from fresh water. Isopods and talitrid amphipods may all have had direct marine origins with no freshwater phase. Secondly, terrestrial animals of marine origin may have blood with higher osmotic pressures than those passing through fresh water. In prosobranchs, isopods and amphipods, the evidence agrees with the conclusions suggested from character one. Thirdly, the production of hypo-osmotic urine in terrestrial animals may be evidence of freshwater origin. The evidence again supports the initial suggestions about prosobranchs and amphipods. It is concluded that because there is little selection pressure acting on these characters on land, theycanbe used as evidence of ancestry. Possible use of further characters is discussed.
Physiological constraints upon marine organisms
Authors: Robertson J. D.
Published: November 2011

When compared with sea water, most marine invertebrates are isosmotic but show varying degrees of ionic regulation, from accumulation of potassium and calcium to reductions of magnesium and sulphate. A reduction of sulphate in pelagic animals such as jellyfish and salps, and an accumulation of ammonium ions in arrow-worms (Sagitta) contribute to their near-neutral buoyancy. Marked reductions in salinity exclude mahy marine invertebrates. In the Baltic, polychaetes, bivalve molluscs and decapod crustaceans are reduced from 193, ninety-two and sixty-four species in the Belt Sea (salinity S 10-30‰) to three, four and two in the Gulf of Finland (salinity S 5-9‰). The chelicerateLimuluscan stand a wide range in salinity, a few insect larvae can tolerate concentrations of 200% sea water, while the branchiopod shrimpArtemiacan stand crystallising brine (36-37% NaCl). Very few species can tolerate temperatures of 40°C. One such species is the polychaeteAlvinella pompejana,a hydrothermal vent animal at East Pacific Ridge (to the W of S America). The harpacticid copepodTigriopusliving in evaporating rockpools has a lethal temperature of 42°C at a salinity of S 90‰, but at S 8‰ that temperature is 34°C. Lack of oxygen and presence of hydrogen sulphide limit the distribution of animals in certain areas. Most active animals have respiratory pigments in their principal body fluid. Burrowing invertebrates such asArenicolaandLingulahave respectively haemoglobin in the blood and haemerythrin in the coelomic fluid, with mean oxygen capacities of 6 ml O2per 100 ml in each case, compared to 0·6 and 0·5 ml in sea water at 10° and 20°C.
Physiological adaptations of the living agnathans
Authors: Hardisty M. W. , Potter I. C. , Hilliard R. W.
Published: November 2011

The modes of life and environments of the extant agnathans (cyclostomes) are discussed in relation to their adaptations to temperature, light, oxygen and salinity. As their antitropical distribution indicates, both hagfishes and lampreys are cold water groups. Since hagfishes live in deeper waters than lampreys, they are not exposed to the marked seasonal changes in temperature and light which influence major events in the lamprey life cycle. Both groups tend to be nocturnally active, either burrowing during daylight as in the case of larval lampreys (ammocoetes) and most hagfishes, or showing cryptic behaviour as in the case of adult lampreys. Olfaction plays a major part in the location of prey, presumably aided in adult lampreys by their eyes and sensitive electrosensory system. Rates of standard oxygen consumption, ventilatory frequency and heart rate of adult lampreys increase at night. Standard oxygen consumption is relatively low in ammocoetes (as it also is in hagfishes) but increases markedly during metamorphosis into the adult lamprey. Ammocoetes and hagfishes, and to a lesser extent adult lampreys, are resistant to reduced environmental oxygen tensions. Differences in the oxygen dissociation curves of ammocoetes, adult lampreys and hagfishes can be related to differences in the characteristics of their monomeric haemoglobins and their environments and modes of life. The extraordinary tolerance of the hagfish heart to hypoxia is a reflection of a robust capacity for glycolysis, an LDH isozyme geared towards anaerobic functioning and a low work output. The hagfishes, which are restricted to marine waters, are osmoconformers. The osmolality of their blood, which is almost wholly attributable to inorganic ions, is virtually identical to that of full strength sea water (c. 1000 mOsmkg−1). By contrast, the osmolality of the blood of larval and adult lampreys when in fresh water is only 205-260 mOsm kg−1, i.e. about one quarter to one fifth of those of hagfish, and these rise only to 240-270 mOsm kg−1in the adults of anadromous lampreys in sea water. The regulation of ions by adult lampreys is achieved by mechanisms similar to those adopted by teleosts. The implications of the contrasting ionic and osmotic physiology of the two living groups of agnathans are discussed in relation to their possible environmental history and against the background of their Carboniferous fossil representatives.
Physiology of Crustacea from difficult environments
Authors: Lockwood A. P. M. , Bolt S. R. L.
Published: November 2011

Examples of the mechanisms involved in body fluid regulation by present-day crustaceans inhabiting variable salinity habitats are described using amphipod gammarids and the isopodMesidotea (Saduria) entomonas models. Appropriately the species inhabiting the most demanding habitats have the greatest range and most sophisticated regulatory responses. Behaviour, micromorphology and physiology are all involved to a variable degree and, in the examples discussed, responses to salinity change seem finely tuned to countering the problems generated by particular environments. This applies both in the rapid responses to sudden alteration in salinity and to the longer term changes associated with acclimation to a new steady state condition. The isolation of populations and features of derived freshwater races are considered and the implications for the presumed physiological mechanisms of fossil forms discussed.
Palaeophysiology of terrestrialisation in the Chelicerata
Authors: Selden Paul A. , Jeram Andrew J.
Published: November 2011

The wide range of organs of respiration (book-gills, book-lungs, sieve- and tube-tracheae), reproduction, sensory perception, etc., among the chelicerates indicates that the major groups made the transition to land life independently. The fossil record is patchy for most chelicerate groups, certain intervals (e.g. Westphalian) being particularly rich in chelicerate bearing Lagerstatten while in others (e.g. Mesozoic) they are sparse. Due, apparently, to their unusual hyaline exocuticle, scorpions are better preserved than other arthropods, and show a fairly continuous record from fully aquatic forms in the Silurian, to both aquatic and terrestrial faunas in the Carboniferous. In particular, new and well-preserved material of the earliest demonstrably terrestrial scorpions from the Lower Carboniferous of East Kirkton, West Lothian, suggests that book-lungs, at least in the scorpions, developed directly from book-gills by suturing of the covering plate (Blattfuss of the related eurypterids) to leave stigmata for diffusion of air. This evidence supports the ideas of early authors that the scorpion mesosomal ‘sternites’ are fused plates,contraKjellesvig-Waering (1986) who envisaged the plates being lost to reveal true sternites beneath. The fossil evidence also indicates that by the Triassic at least two scorpion lineages had evolved intra-‘sternite’ stigmata.
Conservation and concealment in SpeciesBanking.com, USA: an analysis of neoliberal performance in the species offsetting industry
Authors: PAWLICZEK J. , SULLIVAN S.
Published: November 2011

Market-based strategies are promoted as neoliberal governance solutions to environmental problems, from local to global scales. Tradable mitigation schemes are proliferating. These include species banking, which enables payments for the purchase of species credits awarded to conserved areas to offset development impacts on protected species elsewhere. An analysis of species banks in the USA through a survey of data from the websitewww.SpeciesBanking.com(established as a ‘clearing house’ for species banking information) was complemented by questionnaire material from USA bank managers. The number of USA species banks has increased rapidly, bank area ownership and management is consolidated in a small number of organizations, and public information on species credit price is limited. In interrogating the case material, the roles of specific economic policies associated with neoliberalism are considered, focusing on the extension of privatization, de- and re-regulation and marketization into the arena of environmental conservation, and commodification processes as manifested in species banking. Problematic ecological and distributive ‘concealments’ in species banking include the ‘development-led’ nature of conservation banking, tendencies towards net biodiversity loss, and an emphasis on supporting conservation-related wealth accumulation by larger landowners and investors.
Assessing the potential for synergies in the implementation of payments for environmental services programmes: an empirical analysis of Costa Rica
Authors: ZHANG WEI , PAGIOLA STEFANO
Published: November 2011

Payments for environmental services (PES) have been recognized as a promising mechanism for conservation, with the potential to contribute to social objectives such as poverty reduction. This paper outlines a simple framework for assessing the potential for synergies in the implementation of PES programmes, used to analyse the new watershed conservation funding (WCF) channelled through Costa Rica's national PES programme, Pago por Servicios Ambientales (PSA). The WCF financing can only be used in a limited number of watersheds. Given this constraint, the paper examines the mechanisms by which the WCF may potentially contribute to biodiversity conservation and to reducing social development gaps. Although there is significant spatial correlation among the priority areas targeted for the objectives of watershed conservation, biodiversity conservation and social development, the availability of the WCF per unit of land in most watersheds is limited compared to the PSA programme's prevailing payment rate of US$ 64 ha−1, potentially hindering the impact of the WCF on conservation and social development. The analysis helps guide the allocation of the PSA budget in a way that complements the WCF and improves the cost-effectiveness of the PSA budget.
Creating and Recreating Iraq: Legacies of the Mandate System in Contemporary Understandings of Third World Sovereignty
Authors: NATARAJAN USHA
Published: November 2011

This article explores the League of Nations' role in state formation in Third World or peripheral states and its legacy for contemporary understandings of Third World sovereignty. It examines Iraq under British Mandate, and UN and Coalition of the Willing interventions. This research was prompted by the international-law community's outrage when the Coalition invaded Iraq in March 2003. While the invasion was seen by many as an affront to international law, there was also something faintly familiar about the Coalition's reasoning for the invasion. This feeling of déjà vu escalated once regime change was followed by lengthy nation-building. The idea of recreating Iraq was not a new one. The British were tasked with something similar under the League of Nations Mandate System. UN interventions into failed states also attempt comparable transformations. Indeed, the more one contemplates international law's interventions in Iraq, the less shocking the Coalition's invasion becomes. It starts seeming foreseeable and even inevitable.
Fabricating Fidelity: Nation-Building, International Law, and the Greek–Turkish Population Exchange
Authors: ÖZSU UMUT
Published: November 2011

Supported by Athens and Ankara, and implemented largely by the League of Nations, the Greek–Turkish population exchange uprooted and resettled hundreds of thousands. The aim here was not to organize plebiscites, channel self-determination claims, or install protective mechanisms for minorities – all familiar features of the Allies’ management of imperial disintegration in Europe after 1919. Nor was it to restructure a given economy and society from top to bottom, generating an entirely new legal order in the process; this had often been the case with colonialism, and would characterize much of the Mandate System in the interbellum. Instead, the goal was to deploy a unique legal mechanism – not in conformity with European practice, but also distinct from most extra-European governance regimes – in order to resolve ethno-national conflict by redividing land, reshaping national identities, and unleashing new processes of capital accumulation.
The Holy Trinity of International Legal Debate
Authors: SCHWÖBEL CHRISTINE E. J.
Published: November 2011

‘Fragmentation, verticalization, and constitutionalization form the holy trinity of international legal debate in the early 21st century’ – such is the opening phrase of Jan Klabbers's first chapter in his co-authored book, The Constitutionalization of International Law. Although Klabbers possibly did not intend it, by invoking the ‘holy trinity’, he is calling attention to an important aspect of the contemporary constitutionalist debate, namely what I would like to describe as the faith in constitutionalism as a secular religion. It is from this perspective – the complete and unquestioning belief in constitutionalism – that I will explore global constitutionalism and the three books that are the object of this review.
The place of prostitution in early twentieth-century Suzhou
Authors: CARROLL PETER J.
Published: November 2011

In early twentieth-century Suzhou, business and state leaders deployed female prostitution to foster commerce despite its controversial nature and sometime illegality. This political-economic policy variously pitted prostitutes and madams, police, commercial interests and social reformers against one another as tensions between gender reform and economic growth played out in urban development. This article analyses these conflicts to highlight the actions of prostitutes and the prerogatives of male desire in Suzhou's spatial and economic transformation.
The Impact of Significant Others in Motivational Enhancement Therapy: Findings from Project MATCH
Authors: Manuel Jennifer K. , Houck Jon M. , Moyers Theresa B.
Published: November 2011

Background: Social network support for abstinence has been associated with improved treatment outcomes among samples of individuals with alcohol use disorders. As a result, research studies have focused on the inclusion of significant others (SOs) in the treatment process. Nonetheless, little is known about 1) the specific influence SOs may have on clients during treatment sessions or 2) whether SO within-session behaviors have any relationship to client post-treatment drinking. Method: In the current study, Motivational Enhancement Therapy sessions in which a SO was present were coded using a behavioral coding system designed to measure SO and client within-session language. Results: Relationships were observed between SO and client within-session language. Furthermore, some specific SO categories of language predicted post-treatment client drinking. Conclusions: This study is the first systematic evaluation of SO contributions in substance abuse treatment sessions. Future research examining SO language in the treatment of alcohol use disorders might allow clinicians to avoid contributions from SOs that are associated with poorer drinking outcomes.
Evaluation of Perseveration in Relation to Panic-Relevant Responding: An Initial Test
Authors: Leyro Teresa M. , Berenz Erin C. , Brandt Charles P. , Smits Jasper A. J. , Zvolensky Michael J.
Published: November 2011

Background: Perseveration reflects the tendency to engage in a behavior even when it is no longer rewarding nor produces the expected consequences. Method: The current study explored whether (1) individuals endorsing a recent (past 2 years) history of nonclinical panic attacks would report greater levels of perseveration compared to individuals without such a history; (2) whether individuals endorsing higher levels of perseveration would evidence greater panic-relevant responding to a 4-minute 10% carbon dioxide-enriched air challenge. Results: Results indicated that individuals with, compared to without, a positive panic attack history endorsed significantly greater levels of perseveration. Additionally, greater pre-challenge levels of perseveration significantly predicted greater panic attack symptom severity as well as self-reported anxiety; these significant effects were evident above and beyond the variance accounted for by sex, trait-level negative affectivity, panic attack status, and distress tolerance as well as shared variance with the related constructs of persistence and perfectionism. Discussion: Together, the current findings provide initial, albeit preliminary, support for the utlity of investigating perseveration in relation to models of panic psychopathology specifically, and offer a further empirical context for perseveration-psychopathology relations in general.
Comprehension of competing argument marking systems in two Australian mixed languages
Authors: O'SHANNESSY CARMEL , MEAKINS FELICITY
Published: November 2011

Crosslinguistic influence has been seen in bilingual adult and child learners when compared to monolingual learners. For speakers of Light Warlpiri and Gurindji Kriol there is no monolingual group for comparison, yet crosslinguistic influence can be seen in how the speakers resolve competition between case-marking and word order systems in each language. Light Warlpiri and Gurindji Kriol are two new Australian mixed languages, spoken in similar, yet slightly different, sociolinguistic contexts, and with similar, yet slightly different, argument marking systems. The different sociolinguistic situations and systems of argument marking lead to a difference in how speakers of each language interpret simple transitive sentences in a comprehension task. Light Warlpiri speakers rely on ergative case-marking as an indicator of agents more often than Gurindji Kriol speakers do. Conversely, Gurindji Kriol speakers rely on word order more often than Light Warlpiri speakers do.
Parochial Ecology on St Briavels Common: Rebalancing the Local and the Universal in Anglican Ecclesiology and Practice
Authors: Northcott Michael S.
Published: November 2011

The rise of the global market economy has advanced forms of centrist, corporatist and statist rule that are insensitive to local indicators that this novel social order is ecologically, and socially, unsustainable. For many political theologians, and for secular political ecologists, the related crises of species extinction and climate change, combined with structural economic crisis, require a fundamental relocalization of the global economy and of the harvesting of natural resources. The contest between the political economy of global ‘free’ trade and a relocalized economy and polity bears analogies with debates around the relation between the local and the universal in Christian ecclesiology. In the eucharistic body politics of Saint Paul Christian communion is focused in the eucharistic gathering. However, centrist tendencies in ecclesiastical polity emerged in fourth-century accounts of the universal church. The subsequent doctrine of the primacy of Peter gave a powerful push to centrist over localist accounts of the esse of the Church in the West, and the contest between local and universal in Anglican and Catholic ecclesiologies continues to this day. Orthodox theologians Zizioulas and Afanassieff, describe and fill out the doctrinal implications of a primitive ecclesiology in which ‘the eucharist makes the church’.2 This recovery of a local eucharistic ecclesiology offers valuable resources for thinking about the nature of communion between Anglicans in a Communion increasingly riven by controversy, and for thinking about the nature of the parish in a Church of England prone in the last forty years to centrist and managerial conceptions of the Church, and to the denigration of the local parish church as theesseof the ministry and mission of the Church in England.
Shear wave structure in the Grenville Province beneath the lower Great Lakes region from Rayleigh wave tomography
Authors: Chen Ching‐Wen , Li Aibing
Published: November 2011

We have constructed a high resolution 3‐D shear wave velocity model of the upper mantle beneath the Grenville Province in the lower Great Lakes region. A two‐plane wave tomography method was applied to fundamental mode Rayleigh wave data recorded at 35 broadband seismic stations. Rayleigh wave phase velocities were obtained at 15 periods from 20 s to 143 s and then inverted for shear wave velocity variation. A high velocity lid to ~150 km depth is imaged beneath most of the studied Grenville Province. One low velocity anomaly of −4% appears at a failed rift in the northeast above 100 km depth, coinciding with the Great Meteor hot spot track and the high seismicity band, which can be interpreted as high temperature and high iron and/or volatile content related to the hot spot activity. Low velocity anomaly of ~2% at the depths of 100–200 km are found beneath the east of Lake Ontario and Lake Huron where the lithosphere is relatively thin. These anomalies follow the NW‐SE trend of the slow indentation imaged on the continental‐scale models. We conclude that the location of low velocity anomalies is not only related to the hot spot track but also controlled by the pre‐existing lithosphere morphology and strength. A high velocity column appears between southern Lake Ontario and the Appalachian front centered at ~100 km depth. It is likely caused by high Mg content at the formation of the lithosphere or the presence of ecologite or garnet phases generated during the opening and closure of the Iapetus Ocean.