A Place for Buddha in Wollongong,New South Wales? Territorial rules in the place-making of sacred spaces

A Buddhist temple in Berkeley, Wollongong, may at first appear puzzling given that few Buddhists lived there. Indeed, the suburb was home to predominantly those Anglo-Celtic Australians most marginalised by the structural changes to the city's economic base. This problem is explored within the social dynamics of inclusion and exclusion operating within the local politics of place-making. Drawing upon the concept of a progressive sense to place revealed that discourses of support for the temple drew heavily on imagining Australia and Wollongong as multicultural and the temple as an exotic object of the Orient, worthy of tourist visitation. A Buddhist temple provided the city with a source of cultural vitality and enrichment. Imagined as a tourist attraction, a place to visit, rather than as sacred space, a place to worship, a Buddhism sect was perhaps in this way made less threatening to local Christian residents. These results further support arguments that suggest a redundancy to the fixed notions of place as bounded territory and how territorial rules that define whether something, or someone, is appropriately placed requires interrogating the connectedness between social powers and the powers of place.     

Pennsylvanian coalified rhizomorphs in Illinois: evidence for non-compressive coalification to bituminous coal rank

Irregular and discontinuous coalified objects, here termed rhizomorphs, occur above the Summum (No. 4) Coal Member (Carbondale Formation) at one locality in La Salle County, Illinois. These vitrinite structures, varying between 3 mm and 4 cm in diameter, occur in a blocky to structureless mottled claystone characterized by numerous carbonaceous streaks and small-scale slickensides. The rhizomorphs twist and bend in a tightly coiled and kinked pattern, and may extend laterally through the claystone for 40 cm or more before bifurcating or terminating. The rhizomorphs display little or no evidence of compressive distortion. They are composed of two types of material: structureless bright conchoidal collinite; and cellular woody structure. One or more vascular bundles occur as discrete steles within a groundmass of collinite gel; these are generally aligned longitudinally within the coal except where steles diverge laterally as offshoots. The rhizomorphs are believed to be a diagenetic derivative of rooting structures; this is based on their occurrence in an underclay-like sediment and on their irregular, kinked form, which differs from that of most vertical supportive plant stems. Non-compressive coalification of the plant material may have occurred through: (1) aerobic alteration of cell walls to non-compressive inertinite; (2) centripetal contraction and selective degradation of plant tissue; and (3) impregnation of more resistant stelar elements by organic gel derived from degradation of thin-walled tissue.     

Distributary channels, sand lobes, and mesotopography of Navy Submarine Fan, California Borderland, with applications to ancient fan sediments

The deep-tow instrument package of Scripps Institution of Oceanography provides a unique opportunity to delineate small-scale features of a size comparable to those features usually described from ancient deep-sea fan deposits. On Navy Fan, the deep-tow side-scanning sonar readily detected steep channel walls and steps and terraces within channels. The most striking features observed in side-scan are large crescentic depressions commonly occurring in groups. These appear to be large scours or flutes carved by turbidity currents. Four distinct acoustic facies were mapped on the basis of qualitative assessment of reflectivity of 4 kHz reflection profiles. There is a distinct increase in depth of acoustic penetration, number of sub-bottom reflectors, and reflector continuity from the upper fan-valley to the lower fan. These changes are accompanied by a decrease in surface relief. Navy Fan is made up of three active sectors. The active upper fan is dominated by a single channel with prominent levees that decrease in height downstream. The active mid-fan region or suprafan is where sand is deposited. Well defined distributary channels with steps, terraces, and other mesotopography terminate in depositional lobes. Interchannel areas are rough, containing giant scours as well as other relief. The active lower fan accumulates mud and silt and is without resolvable surface morphology. The morphological features seen on Navy Fan other than levees, interchannel areas, and lobes are principally erosional. The distributary channels are up to 0.5 km wide and 5–15 m deep. Such features, because of their large size and low relief, are rarely completely exposed or easily detectable in ancient rock sequences. Some flute-shaped scours are larger than channels in cross section but many are 5-30 m across and 1-2 m deep. If observed in ancient rocks transverse to palaeo-current direction, they would perhaps be indistinguishable from channels. Surface sediment distribution combined with fan morphology can be used to relate modern sediments to facies models for ancient fan sediments. Gravel and sand occur in the upper valley, massive sand beds in the mid-fan distributary channels, classical complete Bouma sequences on depositional lobes, incomplete Bouma sequences (lacking division a) on the lower mid-fan, and Bouma sequence with lenticular shape or other limited extent on mid-fan interchannel areas and on levees.     

Miocene Basalts of the Blue Mountains Province in Oregon. I: Compositional Types and their Geological Settings

Miocene volcanism in the Blue Mountains province of centralOregon produced diverse basaltic rocks. One set of these, thePicture Gorge Formation of the Columbia River Basalt Group,is well known. Others (Bowman Dam, Bear Creek, and Slide Creekflows) are relatively poorly known. Only the Picture Gorge flowsin the center of the province are typical continental floodbasalts. Basaltic rocks with calc-alkaline affinities (evolvedBear Creek flows, Slide Creek basalts) are found to the westand east. Basal Bear Creek flows closely resemble MORB and islandarc tholeiites, despite having erupted on a continental plate.Bowman Dam (formerly ‘Prineville’) basalts are richin K₂O, P₂O₅, and Ba, and poor in Ni, Co, and Cr. Some of thesefeatures may reflect mantle metasomatism or crustal contamination.Thus, several currently debated theories of basalt petrogenesiscan be tested by studying flows erupted during Miocene timesin this relatively small area. Very few, if any, of these basaltic rocks represent primarymantle-derived magmas. Inferred depths of the pre-eruption magmareservoirs in which they were fractionated are shallow in thecenter of the province, deeper to the east and west. The E-W axis of Miocene calc-alkaline rocks in the Blue Mountainsprovince existed simultaneously with a N-S axis of calc-alkalineactivity in the Cascades that paralleled an offshore subductionzone. Current ideas of relationships among tectonic settingsand the compositions of volcanic rocks cannot easily be madeto conform with these facts.     

The Climate and Hydrology of the Upper Blue Nile River

The Upper Blue Nile river basin is the largest in Ethiopia in terms of volume of discharge, second largest in terms of area, and contributes over 50 per cent of the long-term river flow of the Main Nile. This paper provides a review of the nature and variability of the climate and hydrology in the source region of the Blue Nile-the central Ethiopian Highlands. Annual rainfall over the basin decreases from the south-west (>2000 mm) to the north-east (around 1000 mm), with about 70 per cent occurring between June and September. A basin-wide time series of annual rainfall constructed from 11 gauges for the period 1900 to 1998 has a mean of 1421millimetres, minimum in 1913 (1148 mm) and maximum in 1903 (1757 mm). Rainfall over the basin showed a marked decrease between the mid-1960s and the late 1980s and dry years show a degree of association with low values of the Southern Oscillation Index (Sol). The October to February dry season in 1997/98 was the wettest on record and responsible for widespread flooding across Ethiopia and also parts of Somalia and Kenya. Available river flow records, which are sparse and of limited duration, are presented for the Blue Nile and its tributaries upstream of the border with Sudan. Runoff over the basin amounts to 45.9 cubic kilometres (equivalent to 1456 m₃s₋₁) discharge, or 261 millimetre depth (1961–1990), a runoff ratio of 18 per cent. Between 1900 and 1997 annual river flow has ranged from 20.6 cubic kilometres (1913) to 79.0 cubic kilometres (1909), and the lowest decade-mean flow was 37.9 cubic kilometres from 1978 to 1987. Annual river flow, like rainfall, shows a strong association with the SOI     

A recent build-up of atmospheric CO2 over Europe. Part 1: observed signals and possible explanations

We analysed interannual and decadal changes in the atmospheric CO₂ concentration gradient (ΔCO₂) between Europe and the Atlantic Ocean over the period 1995–2007. Fourteen measurement stations are used, with Mace-Head being used to define background conditions. The variability of ΔCO₂ reflects fossil fuel emissions and natural sinks activity over Europe, as well as atmospheric transport variability. The mean ΔCO₂ increased by 1–2 ppm at Eastern European stations (∼30% growth), between 1990–1995 and 2000–2005. This built up of CO₂ over the continent is predominantly a winter signal. If the observed increase of ΔCO₂ is explained by changes in ecosystem fluxes, a loss of about 0.46 Pg C per year would be required during 2000–2005. Even if severe droughts have impacted Western Europe in 2003 and 2005, a sustained CO₂ loss of that magnitude is unlikely to be true. We sought alternative explanations for the observed CO₂ build-up into transport changes and into regional redistribution of fossil fuel CO₂ emissions. Boundary layer heights becoming shallower can only explain 32% of the variance of the signal. Regional changes of emissions may explain up to 27% of the build-up. More insights are given in the Aulagnier et al. companion paper.     

The thermal structure of continental crust in active orogens: insight from Miocene eclogite and granulite xenoliths of the Pamir Mountains

Rare ultrahigh‐temperature–(near)ultrahigh‐pressure (UHT–near‐UHP) crustal xenoliths erupted at 11 Ma in the Pamir Mountains, southeastern Tajikistan, preserve a compositional and thermal record at mantle depths of crustal material subducted beneath the largest collisional orogen on Earth. A combination of oxygen‐isotope thermometry, major‐element thermobarometry and pseudosection analysis reveals that, prior to eruption, the xenoliths partially equilibrated at conditions ranging from 815 °C at 19 kbar to 1100 °C at 27 kbar for eclogites and granulites, and 884 °C at 20 kbar to 1012 °C at 33 kbar for garnet–phlogopite websterites. To reach these conditions, the eclogites and granulites must have undergone mica‐dehydration melting. The extraction depths exceed the present‐day Pamir Moho at ～65 km depth and suggest an average thermal gradient of ～12–13 °C km^?1. The relatively cold geotherm implies the introduction of these rocks to mantle depths by subduction or gravitational foundering (transient crustal drip). The xenoliths provide a window into a part of the orogenic history in which crustal material reached UHT–(U)HP conditions, partially melted, and then decompressed, without being overprinted by the later post‐thermal relaxation history.