New insights into reservoir sand provenance in the Exmouth Plateau and Browse Basin

2011 ◽  
Vol 51 (2) ◽  
pp. 715 ◽  
Author(s):  
Peter Southgate ◽  
Keith Sircombe ◽  
Christopher Lewis
Keyword(s):  
Sediment Transport ◽  
Transport Pathways ◽  
North West ◽  
The Past ◽  
The North ◽  
Geological Surveys ◽  
Source Regions ◽  
Provenance Areas ◽  
Spatial Coverage ◽  
Sand Provenance

A pilot study to determine if zircons present in reservoir facies of the North West Shelf can be used to identify provenance and sediment transport pathways has analysed samples from three wells: Guardian–1 and Hijinx–1 (Carnarvon Basin), and Burnside–1 (Browse Basin). Operating companies Chevron, Santos and Hess collected 3–5 kg of cuttings from sandstone bodies intersected in the three wells. Samples were sent to Geoscience Australia for zircon separation and analysis at the Geochronology Laboratory on a sensitive high-resolution ion microprobe (SHRIMP). To provide a statistically meaningful representation of ages in each sample, 70–80 grains were randomly selected for analysis. During the past 20 years, Geoscience Australia and the state geological surveys of WA, NT, Queensland and SA, together with the ANU, UWA and Curtin University, have analysed zircons found in igneous and sedimentary rocks that outcrop in WA and central Australia. This analysis has been done to determine the ages of emplacement, extrusion or maximum depositional ages. This dataset permits the ages of potential onshore provenance areas to be differentiated; hence, correlations can be made between zircons contained within the transported sands and their potential source regions from onshore Australia. In this extended abstract, the spectrum of ages in each sample will be shown, and potential provenance and sediment transport pathways will be discussed. The abstract concludes with the outline of a 2–3 year project to obtain a dataset that will provide a regional stratigraphic and spatial coverage of the North West Shelf for provenance studies.

scholarly journals Ensemble models on palaeoclimate to predict India's groundwater challenge

2013 ◽  
Vol 2 (3) ◽  
Author(s):  
Partha Sarathi Datta
Keyword(s):  
Climate Change ◽  
Climate Models ◽  
Global Climate ◽  
Global Climate Models ◽  
Humid Climate ◽  
Ensemble Models ◽  
North West ◽  
The Past ◽  
The North ◽  
14C Age

In many parts of the world, freshwater crisis is largely due to increasing water consumption and pollution by rapidly growing population and aspirations for economic development, but, ascribed usually to the climate. However, limited understanding and knowledge gaps in the factors controlling climate and uncertainties in the climate models are unable to assess the probable impacts on water availability in tropical regions. In this context, review of ensemble models on δ18O and δD in rainfall and groundwater, 3H- and 14C- ages of groundwater and 14C- age of lakes sediments helped to reconstruct palaeoclimate and long-term recharge in the North-west India; and predict future groundwater challenge. The annual mean temperature trend indicates both warming/cooling in different parts of India in the past and during 1901–2010. Neither the GCMs (Global Climate Models) nor the observational record indicates any significant change/increase in temperature and rainfall over the last century, and climate change during the last 1200 yrs BP. In much of the North-West region, deep groundwater renewal occurred from past humid climate, and shallow groundwater renewal from limited modern recharge over the past decades. To make water management to be more responsive to climate change, the gaps in the science of climate change need to be bridged.

II.—Notes on the Pleistocene of the North-West Territories of Canada, North-West and West of Hudson Bay

1894 ◽  
Vol 1 (9) ◽  
pp. 394-399 ◽  
Author(s):  
J. Burr Tyrrell
Keyword(s):  
Geological Survey ◽  
Hudson Bay ◽  
North West ◽  
The Past ◽  
North Shore ◽  
The North ◽  
South West ◽  
North West Territories

In the extreme northernmost part of Canada, lying between North Latitudes 56° and 68° and West Longitudes 88° and 112°, is an area of about 400,000 square miles, which had up to the past two years remained geologically unexplored.In 1892 the Director of the Geological Survey of Canada sent the writer to explore the country north of Churchill River, and south-west of Lake Athabasca;in1893 the exploration was continued northward, along the north shore of Athabasca Lake

III.—The Pre-Cambrian Rocks of Wales

1893 ◽  
Vol 10 (9) ◽  
pp. 396-401
Author(s):  
Henry Hicks
Keyword(s):  
Recent Article ◽  
British Isles ◽  
The West ◽  
British Geological Survey ◽  
England And Wales ◽  
North West ◽  
The Past ◽  
The North ◽  
History Of ◽  
Lithological Character

In a recent article on the Pre-Cambrian Rocks of the British Isles in the Journal of Geology, vol. i., No. 1, Sir Archibald Geikie makes the following statement: “There cannot, I think, be now any doubt that small tracts of gneiss, quite comparable in lithological character to portions of the Lewisian rocks of the North-West of Scotland, rise to the surface in a few places in England and Wales. In the heart of Anglesey, for example, a tract of such rocks presents some striking external or scenic resemblance to the characteristic types of ground where the oldest gneiss forms the surface in Scotland and the West of Ireland.” To those who have followed the controversy which has been going on for nearly thirty years between the chiefs of the British Geological Survey and some geologists who have been working amongst the rocks in Wales, the importance of the above admission will be readily apparent; but as it is possible that some may be unable to realize what such an admission means in showing geological progress in unravelling the history of the older rocks in Wales during the past thirty years, a brief summary of the results obtained may possibly be considered useful.

scholarly journals Words Don't Come Easy: How Male Prisoners' Difficulties Identifying and Discussing Feelings Relate to Suicide and Violence

2020 ◽  
Vol 11 ◽  
Author(s):  
Laura Hemming ◽  
Peer Bhatti ◽  
Jennifer Shaw ◽  
Gillian Haddock ◽  
Daniel Pratt
Keyword(s):  
Lived Experience ◽  
Harm Minimization ◽  
Open Communication ◽  
Cultural Shift ◽  
North West ◽  
The Past ◽  
The North ◽  
External Pressures ◽  
The Uk ◽  
Male Prisoners

Suicide and violence are prevalent within male prisons in the UK. It has been suggested that alexithymia may be associated with both suicide and violence. Alexithymia can be defined as an inability to identify or discuss emotions. The present study aimed to qualitatively explore male prisoners' experiences of alexithymia and how these experiences may relate to suicide and violence. Fifteen male prisoners were recruited from two prisons in the North West of England. All participants had experienced suicidal and/or violent thoughts and/or behaviors in the past 3 months, and all screened positive on an established measure of alexithymia. Participants took part in a qualitative interview during which they were also given the opportunity to provide drawings of their emotions. Data were transcribed and analyzed using thematic analysis, with a collaborative approach taken between researchers and an individual with lived experience of residing in prison. The results indicated that male prisoners tended not to talk about their emotions with others, due to external pressures of residing in prison in addition to internal difficulties with recognizing and articulating emotions. Not discussing emotions with others was associated with a build-up of emotions which could result in either an emotional overload or an absence of emotions. Both experiences were perceived to be associated with hurting self or others, however, participants also identified a “safety valve” where it was acknowledged that using more adaptive approaches to releasing emotions could prevent harm to self and others. These findings suggest three main clinical implications; (1) a cultural shift in male prisons is needed which encourages open communication of emotions (2) individualized support is needed for those identified as experiencing a difficulty in recognizing and articulating emotions and (3) prison staff should encourage alternative ways of releasing emotions such as by using harm minimization or distraction techniques.

Intermontane-basin development in the past 4 Myr in the north-west Himalaya

Nature ◽  
1982 ◽  
Vol 298 (5873) ◽  
pp. 432-436 ◽  
Author(s):  
Douglas W. Burbank ◽  
Gary D. Johnson
Keyword(s):  
North West ◽  
Intermontane Basin ◽  
The Past ◽  
The North ◽  
Basin Development ◽  
West Himalaya

scholarly journals ECOLOGICAL - PHYSIOLOGICAL CHARACTERISTICS OF FODDER PLANTS USED TO PREVENT DESERTIFICATION IN THE CHUST-PAP ADYRS OF THE FERGHANA VALLEY

2020 ◽  
Vol 5 (6(75)) ◽  
pp. 4-11
Author(s):  
Otabek Normirzoyevich Imomov ◽  
Turakhon Uzakovna Rakhimova ◽  
Saidmakhmud Mirzaev
Keyword(s):  
Scientific Basis ◽  
Anthropogenic Influences ◽  
Natural Ecosystems ◽  
North West ◽  
The Past ◽  
The North ◽  
Fodder Plants ◽  
Ferghana Valley ◽  
The Republic ◽  
Local Plants

Adyrs of Chust-Pap, located in the north-west of the Ferghana Valley of the Republic of Uzbekistan, the process of desertification due to anthropogenic influences has been observed over the past 35-40 years. This process was confirmed by scientists, and evidence was provided. The aim of this study was to analyze the threeyear data on the parameters of the water regime in the conditions of rainfed cultivation of such local plants as Salsola orientalis S. G. Gmel., Kochia prostrata (L) Schrad. subsp. grisea prat. Subsp. nov., Krascheninnikovia ewersmanniana (Stschegl. ex Losinsk.) Grubov., Artemisia sogdiana Bge., used in the restoration of plant communities. A scientific basis has been created for the propagation of species to prevent desertification, that adapted to the region and common in natural ecosystems.

scholarly journals Using the scarce resource of child and adolescent psychiatrists equitably

2006 ◽  
Vol 30 (1) ◽  
pp. 28-30 ◽  
Author(s):  
Hilary Lloyd ◽  
Margaret Bamforth ◽  
Mary Eminson
Keyword(s):  
Adolescent Psychiatry ◽  
Child And Adolescent ◽  
Child And Adolescent Psychiatry ◽  
Scarce Resource ◽  
Recruitment And Retention ◽  
North West ◽  
The Past ◽  
The North ◽  
Current Thinking

The authors, all consultant child and adolescent psychiatrists working in the north-west of England (an area that has experienced recruitment difficulties throughout the past decade), seek to stimulate discussion about the serious issues of recruitment and retention faced by child and adolescent psychiatry. Current thinking about staffing and models of provision is challenged.

scholarly journals Contribution of Asian emissions to upper tropospheric CO over the remote Pacific

2021 ◽  
Author(s):  
Linda Smoydzin ◽  
Peter Hoor
Keyword(s):  
Seasonal Cycle ◽  
Transport Model ◽  
Source Region ◽  
Reanalysis Data ◽  
Transport Pathways ◽  
Trajectory Calculations ◽  
Source Regions ◽  
Spatial Coverage ◽  
High Regularity ◽  
Pollution Events

Abstract. We use CO data from the MOPITT satellite instrument from 2000–2019 to compose a climatology of severe pollution events in the mid- and upper troposphere over the northern-hemispheric (NH-) Pacific. To link each individual pollution event detected by MOPITT with a CO source region, we performed trajectory calculations using MPTRAC, a lagrangian transport model. To analyse transport pathways and uplift mechanisms we combine MOPITT data, the trajectory calculations and ERA-Interim reanalysis data. Events of elevated CO which we detect at level between 500 hPa and 300 hPa over the NH-Pacific throughout the year, occur with a surprisingly high regularity and frequency (70 % of all days during winter, 80 % respectively during spring). Our study further indicates, that the spatial coverage of individual upper tropospheric pollution cluster increased in spring time during the 20 years we analysed. The position of upper tropospheric pollution plumes show a strong seasonal cycle. During winter, most pollution events are detected over the north-eastern and central NH-Pacific, during spring over the central NH-Pacific and during summer over the western NH-Pacific. We detect most pollution episodes during spring. Trajectory simulations reveal China as the major CO-source region throughout the year. The contribution of other source regions shows a strong seasonal cycle: NE-Asia is a significant CO-source region during winter and summer while India and SE-Asia are important source regions mainly during spring.

scholarly journals Dissolved Pb and Pb isotopes in the North Atlantic from the GEOVIDE transect (GEOTRACES GA-01) and their decadal evolution

2018 ◽  
Author(s):  
Cheryl M. Zurbrick ◽  
Edward A. Boyle ◽  
Rick Kayser ◽  
Matthew K. Reuer ◽  
Jingfeng Wu ◽  
...  
Keyword(s):  
North Atlantic ◽  
Sea Water ◽  
North Atlantic Ocean ◽  
Isotope Analysis ◽  
The Past ◽  
The North ◽  
Anthropogenic Inputs ◽  
Source Regions ◽  
The North Atlantic ◽  
Seawater Samples

Abstract. During the 2014 GEOVIDE transect, seawater samples were collected for dissolved Pb and Pb isotope analysis. These samples provide a high resolution snapshot of the source regions for the present Pb distribution in the North Atlantic Ocean. Some of these stations were previously occupied for Pb from as early as 1981, and we compare the 2014 data with these older data some of which are reported here for the first time. Lead concentrations were highest in subsurface Mediterranean Water (MW) near the coast of Portugal, which agrees well with other recent observations by the U.S. GEOTRACES program (Noble et al., 2015). The recently formed Labrador Sea Water (LSW) between Greenland and Nova Scotia is much lower in Pb concentration than the older LSW found in the Western European Basin due to decreases in Pb emissions into the atmosphere during the past 20 years. Comparison of North Atlantic data from 1989–2014 shows decreasing Pb concentrations consistent with decreased anthropogenic inputs, active scavenging, and advection/convection. The nearly-homogenous isotopic composition of northern North Atlantic seawater implies that the relative proportions of U.S. and European Pb sources to the ocean have been relatively uniform during the past two decades. Using our measurements in conjunction with emissions inventories, we support the findings of previous atmospheric analyses that up to 50 % of the Pb deposited to the ocean in 2014 was natural, although it remains unclear if that natural dust is from the mid- or high-latitudes.

scholarly journals The Influence of Socio-Economic Situation in the Regions of the North Caucasus Federal District of the Russian Federation on The Sources of Terrorist Crimes

2018 ◽  
Vol 3 (2) ◽  
pp. 507
Author(s):  
Feofilova T. Yu ◽  
Alekseeva Yu A.
Keyword(s):  
Inverse Relationship ◽  
Federal District ◽  
Economic Situation ◽  
Cash Income ◽  
North Caucasus ◽  
North West ◽  
The Past ◽  
The North ◽  
Socio Economic Development ◽  
The Russian Federation

It was found that over the past 5 years a number of crimes of a terrorist nature has greatly increased. The hypothesis appeared that the adverse socio-economic situation creates conditions for the growth of crimes of a terrorist nature. As a result, the analysis revealed an inverse relationship between the "actual final consumption per person in thousand rubles ", average cash income per month in thousand rubles and the number of crimes of a terrorist nature. Keywords: socio-economic development, crimes of a terrorist nature, region, North-West

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