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— Global Mobile Water Treatment Industry Report offers market overview, segmentation by types, application, countries, key manufactures, cost analysis, industrial chain, sourcing strategy, downstream buyers, marketing strategy analysis, distributors/traders, factors affecting market, forecast and other important information for key insight. Companies profiled in this report are GE Water, Evoqua Water, Veolia, Degremont, Pall Corporation, Ovivo, Pureflow, AVANTech, Crossbow, MPW, Lenntech, Ecolutia, Orenco, Osmoflo, Septech, GETECH Industries, Aqualyng in terms of Basic Information, Manufacturing Base, Sales Area and Its Competitors, Sales, Revenue, Price and Gross Margin (2012-2017). Split by Product Types, with sales, revenue, price, market share of each type, can be divided into • Membrane Mobile Water Treatment • Resin Mobile Water Treatment • Filtration Mobile Water Treatment Split by applications, this report focuses on sales, market share and growth rate of Mobile Water Treatment in each application, can be divided into • Power & Energy • Construction • Agriculture • Chemicals • Mining & Minerals • Municipal Purchase a copy of this report at: https://www.themarketreports.com/report/buy-now/424317 Table of Content: 1 Mobile Water Treatment Market Overview 2 Global Mobile Water Treatment Sales, Revenue (Value) and Market Share by Manufacturers 3 Global Mobile Water Treatment Sales, Revenue (Value) by Countries, Type and Application (2012-2017) 4 Global Mobile Water Treatment Manufacturers Profiles/Analysis 5 North America Mobile Water Treatment Sales, Revenue (Value) by Countries, Type and Application (2012-2017) 6 Latin America Mobile Water Treatment Sales, Revenue (Value) by Countries, Type and Application (2012-2017) 7 Europe Mobile Water Treatment Sales, Revenue (Value) by Countries, Type and Application (2012-2017) 8 Asia-Pacific Mobile Water Treatment Sales, Revenue (Value) by Countries, Type and Application (2012-2017) 9 Middle East and Africa Mobile Water Treatment Sales, Revenue (Value) by Countries, Type and Application (2012-2017) 10 Mobile Water Treatment Manufacturing Cost Analysis 11 Industrial Chain, Sourcing Strategy and Downstream Buyers 12 Marketing Strategy Analysis, Distributors/Traders 13 Market Effect Factors Analysis 14 Global Mobile Water Treatment Market Forecast (2017-2022) 15 Research Findings and Conclusion 16 Appendix Inquire more for more details about this report at: https://www.themarketreports.com/report/ask-your-query/424317 For more information, please visit https://www.themarketreports.com/report/2017-2022-global-top-countries-mobile-water-treatment-market-report


Barraud J.,Getech
SEG Technical Program Expanded Abstracts | Year: 2015

Estimating the depth of the edge of horizontal layers from gravity or magnetic anomalies can be performed using the amplitude and curvature of special functions of the anomaly. The choice of the special function depends on the assumed model for the source, from the infinitely thin sheet to the infinitely thick contact. An extension of the method for the intermediate case of the thick sheet (when the depth is approximately equal to the thickness) is provided in this study. As the method also gives estimates of the density contrast and thickness of the source, practical ways to validate the quality of the depth estimates are investigated. The example of the Bishop model is used to demonstrate the new technique. © 2015 SEG.


News Article | November 19, 2016
Site: marketersmedia.com

WiseGuyReports.Com Publish a New Market Research Report On – “Mobile Water Treatment 2016 Global Market Share,Growth,Trends & Forecast to 2021”.Pune, India - November 18, 2016 /MarketersMedia/ — Mobile water treatment systems are ideal for fast response, emergency situations, supplemental, or temporary requirements. They are often used to assist industrial customers during plant start up and maintenance outages when the plant's water treatment system is unavailable or cannot meet the water production requirements.Mobile water treatment suppliers can provide rental service which include rapid response service, short term temporary services and long term service. Scope of the Report: This report focuses on the Mobile Water Treatment Consumption in Global market, especially in North America, Europe and Asia-Pacific, Latin America, Middle and Africa. This report categorizes the market based on manufacturers, regions, type and application. Get Sample Report @ https://www.wiseguyreports.com/sample-request/612476-global-mobile-water-treatment-forecast-to-2021 For more information or any query mail at sales@wiseguyreports.com Market Segment by Manufacturers, this report covers GE Water Evoqua Water Veolia Degremont Pall Corporation Ovivo Pureflow AVANTech Crossbow MPW Lenntech Ecolutia Orenco Osmoflo Septech GETECH Industries Aqualyng Market Segment by Regions, regional analysis covers North America (USA, Canada and Mexico) Europe (Germany, France, UK, Russia and Italy) Asia-Pacific (China, Japan, Korea, India and Southeast Asia) Latin America, Middle and Africa Market Segment by Type, covers Membrane Mobile Water Treatment Resin Mobile Water Treatment Filtration Mobile Water Treatment Market Segment by Applications, can be divided into Power & Energy Construction Agriculture Chemicals Mining & Minerals Municipal Complete Report Details @ https://www.wiseguyreports.com/reports/612476-global-mobile-water-treatment-forecast-to-2021 Table Of Contents – Major Key Points Global Mobile Water Treatment Consumption Market by Manufacturers, Regions, Type and Application, Forecast to 2021 1 Manufacturers Profiles 1.1 GE Water 1.1.1 Business Overview 1.1.2 Mobile Water Treatment Consumption Type and Applications 1.1.2.1 Type 1 1.1.2.2 Type 2 1.1.2 GE Water Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share 1.2 Evoqua Water 1.2.1 Business Overview 1.2.2 Mobile Water Treatment Consumption Type and Applications 1.2.2.1 Type 1 1.2.2.2 Type 2 1.2.2 Evoqua Water Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share 1.3 Veolia 1.3.1 Business Overview 1.3.2 Mobile Water Treatment Consumption Type and Applications 1.3.2.1 Type 1 1.3.2.2 Type 2 1.3.2 Veolia Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share 1.4 Degremont 1.4.1 Business Overview 1.4.2 Mobile Water Treatment Consumption Type and Applications 1.4.2.1 Type 1 1.4.2.2 Type 2 1.4.2 Degremont Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share 1.5 Pall Corporation 1.5.1 Business Overview 1.5.2 Mobile Water Treatment Consumption Type and Applications 1.5.2.1 Type 1 1.5.2.2 Type 2 1.5.2 Pall Corporation Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share 1.6 Ovivo 1.6.1 Business Overview 1.6.2 Mobile Water Treatment Consumption Type and Applications 1.6.2.1 Type 1 1.6.2.2 Type 2 1.6.2 Ovivo Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share 1.7 Pureflow 1.7.1 Business Overview 1.7.2 Mobile Water Treatment Consumption Type and Applications 1.7.2.1 Type 1 1.7.2.2 Type 2 1.7.2 Pureflow Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share 1.8 AVANTech 1.8.1 Business Overview 1.8.2 Mobile Water Treatment Consumption Type and Applications 1.8.2.1 Type 1 1.8.2.2 Type 2 1.8.2 AVANTech Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share 1.9 Crossbow 1.9.1 Business Overview 1.9.2 Mobile Water Treatment Consumption Type and Applications 1.9.2.1 Type 1 1.9.2.2 Type 2 1.9.2 Crossbow Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share 1.10 MPW 1.10.1 Business Overview 1.10.2 Mobile Water Treatment Consumption Type and Applications 1.10.2.1 Type 1 1.10.2.2 Type 2 1.10.2 MPW Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share 1.11 Lenntech 1.11.1 Business Overview 1.11.2 Mobile Water Treatment Consumption Type and Applications 1.11.2.1 Type 1 1.11.2.2 Type 2 1.11.2 Lenntech Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share 1.12 Ecolutia 1.12.1 Business Overview 1.12.2 Mobile Water Treatment Consumption Type and Applications 1.12.2.1 Type 1 1.12.2.2 Type 2 1.12.2 Ecolutia Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share 1.13 Orenco 1.13.1 Business Overview 1.13.2 Mobile Water Treatment Consumption Type and Applications 1.13.2.1 Type 1 1.13.2.2 Type 2 1.13.2 Orenco Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share 1.14 Osmoflo 1.14.1 Business Overview 1.14.2 Mobile Water Treatment Consumption Type and Applications 1.14.2.1 Type 1 1.14.2.2 Type 2 1.14.2 Osmoflo Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share 1.15 Septech 1.15.1 Business Overview 1.15.2 Mobile Water Treatment Consumption Type and Applications 1.15.2.1 Type 1 1.15.2.2 Type 2 1.15.2 Septech Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share 1.16 GETECH Industries 1.16.1 Business Overview 1.16.2 Mobile Water Treatment Consumption Type and Applications 1.16.2.1 Type 1 1.16.2.2 Type 2 1.16.2 GETECH Industries Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share 1.17 Aqualyng 1.17.1 Business Overview 1.17.2 Mobile Water Treatment Consumption Type and Applications 1.17.2.1 Type 1 1.17.2.2 Type 2 1.17.2 Aqualyng Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share 2 Global Mobile Water Treatment Consumption Market Competition, by Manufacturer 2.1 Global Mobile Water Treatment Consumption Sales and Market Share by Manufacturer 2.2 Global Mobile Water Treatment Consumption Revenue and Market Share by Manufacturer 3 Global Mobile Water Treatment Consumption Market Analysis by Regions 3.1.1 Global Mobile Water Treatment Consumption Sales by Regions (2011-2016) 3.1.2 Global Mobile Water Treatment Consumption Revenue by Regions (2011-2016) 3.2 North America (USA, Canada and Mexico) Mobile Water Treatment Consumption Sales and Growth (2011-2016) 3.3 Europe (Germany, France, UK, Russia and Italy) Mobile Water Treatment Consumption Sales and Growth (2011-2016) 3.4 Asia-Pacific (China, Japan, Korea, India and Southeast Asia) Mobile Water Treatment Consumption Sales and Growth (2011-2016) 3.5 Latin America, Middle and Africa Mobile Water Treatment Consumption Sales and Growth (2011-2016) 3.6 Mobile Water Treatment Consumption Sales and Growth (2011-2016) ……..CONTINUED For more information or any query mail at sales@wiseguyreports.com Buy 1-User PDF @ https://www.wiseguyreports.com/checkout?currency=one_user-USD&report_id=612476 ABOUT US: Wise Guy Reports is part of the Wise Guy Consultants Pvt. Ltd. and offers premium progressive statistical surveying, market research reports, analysis & forecast data for industries and governments around the globe. Wise Guy Reports features an exhaustive list of market research reports from hundreds of publishers worldwide. We boast a database spanning virtually every market category and an even more comprehensive collection of market research reports under these categories and sub-categories. For more information, please visit https://www.wiseguyreports.comContact Info:Name: Norah TrentEmail: sales@wiseguyreports.comOrganization: WiseGuy Research Consultants Pvt Ltd.Address: Office No. 528, Amanora Chambers Magarpatta Road, Hadapsar Pune - 411028Phone: +1-646-845-9349 Source: http://marketersmedia.com/mobile-water-treatment-2016-global-market-sharegrowthtrends-forecast-to-2021/147701Release ID: 147701


WiseGuyReports.Com Publish a New Market Research Report On – “Mobile Water Treatment Market 2016 Global Analysis and Opportunities Research Report Forecasts to 2021”. Mobile water treatment systems are ideal for fast response, emergency situations, supplemental, or temporary requirements. They are often used to assist industrial customers during plant start up and maintenance outages when the plant's water treatment system is unavailable or cannot meet the water production requirements.Mobile water treatment suppliers can provide rental service which include rapid response service, short term temporary services and long term service. Scope of the Report:  This report focuses on the Mobile Water Treatment Consumption in Global market, especially in North America, Europe and Asia-Pacific, Latin America, Middle and Africa. This report categorizes the market based on manufacturers, regions, type and application. For more information or any query mail at [email protected] Market Segment by Regions, regional analysis covers  North America (USA, Canada and Mexico)  Europe (Germany, France, UK, Russia and Italy)  Asia-Pacific (China, Japan, Korea, India and Southeast Asia)  Latin America, Middle and Africa Market Segment by Applications, can be divided into  Power & Energy  Construction  Agriculture  Chemicals  Mining & Minerals  Municipal Global Mobile Water Treatment Consumption Market by Manufacturers, Regions, Type and Application, Forecast to 2021 1 Manufacturers Profiles  1.1 GE Water  1.1.1 Business Overview  1.1.2 Mobile Water Treatment Consumption Type and Applications  1.1.2.1 Type 1  1.1.2.2 Type 2  1.1.2 GE Water Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share  1.2 Evoqua Water  1.2.1 Business Overview  1.2.2 Mobile Water Treatment Consumption Type and Applications  1.2.2.1 Type 1  1.2.2.2 Type 2  1.2.2 Evoqua Water Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share  1.3 Veolia  1.3.1 Business Overview  1.3.2 Mobile Water Treatment Consumption Type and Applications  1.3.2.1 Type 1  1.3.2.2 Type 2  1.3.2 Veolia Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share  1.4 Degremont  1.4.1 Business Overview  1.4.2 Mobile Water Treatment Consumption Type and Applications  1.4.2.1 Type 1  1.4.2.2 Type 2  1.4.2 Degremont Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share  1.5 Pall Corporation  1.5.1 Business Overview  1.5.2 Mobile Water Treatment Consumption Type and Applications  1.5.2.1 Type 1  1.5.2.2 Type 2  1.5.2 Pall Corporation Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share  1.6 Ovivo  1.6.1 Business Overview  1.6.2 Mobile Water Treatment Consumption Type and Applications  1.6.2.1 Type 1  1.6.2.2 Type 2  1.6.2 Ovivo Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share  1.7 Pureflow  1.7.1 Business Overview  1.7.2 Mobile Water Treatment Consumption Type and Applications  1.7.2.1 Type 1  1.7.2.2 Type 2  1.7.2 Pureflow Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share  1.8 AVANTech  1.8.1 Business Overview  1.8.2 Mobile Water Treatment Consumption Type and Applications  1.8.2.1 Type 1  1.8.2.2 Type 2  1.8.2 AVANTech Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share  1.9 Crossbow  1.9.1 Business Overview  1.9.2 Mobile Water Treatment Consumption Type and Applications  1.9.2.1 Type 1  1.9.2.2 Type 2  1.9.2 Crossbow Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share  1.10 MPW  1.10.1 Business Overview  1.10.2 Mobile Water Treatment Consumption Type and Applications  1.10.2.1 Type 1  1.10.2.2 Type 2  1.10.2 MPW Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share  1.11 Lenntech  1.11.1 Business Overview  1.11.2 Mobile Water Treatment Consumption Type and Applications  1.11.2.1 Type 1  1.11.2.2 Type 2  1.11.2 Lenntech Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share  1.12 Ecolutia  1.12.1 Business Overview  1.12.2 Mobile Water Treatment Consumption Type and Applications  1.12.2.1 Type 1  1.12.2.2 Type 2  1.12.2 Ecolutia Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share  1.13 Orenco  1.13.1 Business Overview  1.13.2 Mobile Water Treatment Consumption Type and Applications  1.13.2.1 Type 1  1.13.2.2 Type 2  1.13.2 Orenco Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share  1.14 Osmoflo  1.14.1 Business Overview  1.14.2 Mobile Water Treatment Consumption Type and Applications  1.14.2.1 Type 1  1.14.2.2 Type 2  1.14.2 Osmoflo Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share  1.15 Septech  1.15.1 Business Overview  1.15.2 Mobile Water Treatment Consumption Type and Applications  1.15.2.1 Type 1  1.15.2.2 Type 2  1.15.2 Septech Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share  1.16 GETECH Industries  1.16.1 Business Overview  1.16.2 Mobile Water Treatment Consumption Type and Applications  1.16.2.1 Type 1  1.16.2.2 Type 2  1.16.2 GETECH Industries Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share  1.17 Aqualyng  1.17.1 Business Overview  1.17.2 Mobile Water Treatment Consumption Type and Applications  1.17.2.1 Type 1  1.17.2.2 Type 2  1.17.2 Aqualyng Mobile Water Treatment Consumption Sales, Price, Revenue and Market Share 2 Global Mobile Water Treatment Consumption Market Competition, by Manufacturer      2.1 Global Mobile Water Treatment Consumption Sales and Market Share by Manufacturer      2.2 Global Mobile Water Treatment Consumption Revenue and Market Share by Manufacturer 3 Global Mobile Water Treatment Consumption Market Analysis by Regions        3.1.1 Global Mobile Water Treatment Consumption Sales by Regions (2011-2016)        3.1.2 Global Mobile Water Treatment Consumption Revenue by Regions (2011-2016)      3.2 North America (USA, Canada and Mexico) Mobile Water Treatment Consumption Sales and Growth (2011-2016)      3.3 Europe (Germany, France, UK, Russia and Italy) Mobile Water Treatment Consumption Sales and Growth (2011-2016)      3.4 Asia-Pacific (China, Japan, Korea, India and Southeast Asia) Mobile Water Treatment Consumption Sales and Growth (2011-2016)      3.5 Latin America, Middle and Africa Mobile Water Treatment Consumption Sales and Growth (2011-2016)      3.6 Mobile Water Treatment Consumption Sales and Growth (2011-2016) For more information or any query mail at [email protected] Wise Guy Reports is part of the Wise Guy Consultants Pvt. Ltd. and offers premium progressive statistical surveying, market research reports, analysis & forecast data for industries and governments around the globe. Wise Guy Reports features an exhaustive list of market research reports from hundreds of publishers worldwide. We boast a database spanning virtually every market category and an even more comprehensive collection of market research reports under these categories and sub-categories.


Alalade B.,Newcastle University | Tyson R.V.,Getech
Journal of African Earth Sciences | Year: 2013

This study evaluates the influence of igneous intrusions on the thermal maturity of Late Cretaceous (Turonian-Santonian) potential source rock shales within the Gongila and Fika formations penetrated by the Tuma well. Twenty representative shale samples of the two formations between 1000 m and 3195 m were analyzed by bulk organic geochemical and palynofacies methods. A positive excursion in Rock-Eval Tmax values and an increase in the percent of non-fluorescent amorphous organic matter (AOM) were observed between 1500 m and 2900 m. These anomalies are moderately correlated with the abundance of igneous intrusive fragments. At depths greater than 2900 m where igneous intrusive fragments are absent, Rock-Eval Tmax values return to the same trend as observed above 1500 m and the percentage of fluorescent AOM also increases. These observations suggest that the thermal maturity of the shales between 1500 m and 2900 m was elevated by the heating due to the emplacement of the intrusives. Further studies should be undertaken to differentiate reliably the effects of regional burial and those of more localized contact metamorphism, and to determine the effects of each on the maturation of the Late Cretaceous potential source rocks. © 2012 Elsevier Ltd.


Tindall J.,University of Bristol | Flecker R.,University of Bristol | Valdes P.,University of Bristol | Schmidt D.N.,University of Bristol | And 2 more authors.
Earth and Planetary Science Letters | Year: 2010

One of the motivations for studying warm climates of the past such as the early Eocene, is the enhanced understanding this brings of possible future greenhouse conditions. Traditionally, climate information deduced from biological or chemical proxies have been used to "test" computer model simulations of past climatic conditions and hence establish some of the uncertainties associated with model-based predictions. However, extracting climate information from proxies is itself an interpretative process and discrepancies between climate information inferred from different types of proxy undermines the assumption that model-data conflicts automatically mean that the model is inherently flawed. A new approach which both acknowledges and reduces the uncertainties associated with both model and data is required.Although the oxygen isotopic ratio (δ18O) preserved in calcareous marine fossils has been used to reconstruct past seawater temperature for several decades, significant uncertainties associated with this method persist. These include assumptions about past seawater δ18O for which no proxy exists and which is a key control on the temperature inferred from fossil carbonate. Here we present the results of an early Eocene simulation made using a state-of-the-art General Circulation Model (GCM; HadCM3) with CO2 set at six times pre-industrial values and which has oxygen isotopes incorporated into the full hydrological cycle and hence simulates the δ18O of past seawater. This allows us to explore the implications of the different seawater δ18O correction factors commonly used for δ18O-based temperature reconstruction. It also allows us to focus model-data comparison on δ18O rather than interpret ocean temperature, an approach that reduces uncertainties in model-data comparison since the effects of both the temperature and the isotopic composition of ocean water on δ18O of carbonate are accounted for. The good agreement between model and data for both modern and well-preserved early Eocene carbonate increases confidence in climate reconstructions of this time. © 2009 Elsevier B.V.


Algeo T.J.,University of Cincinnati | Henderson C.M.,University of Calgary | Tong J.,Wuhan University | Feng Q.,Wuhan University | And 2 more authors.
Global and Planetary Change | Year: 2013

Changes in marine primary productivity following the latest Permian mass extinction (LPME) have been debated at length, with little resolution to date owing to a paucity of quantitative data. Herein, we report total organic carbon (TOC) concentrations and organic carbon accumulation rates (OCAR) for 40 Permian-Triassic boundary (PTB) sections with a near-global distribution and consider their implications for changes in marine productivity during the boundary crisis. Many sections in South China exhibit abrupt declines in TOC and OCAR from the Changhsingian (latest Permian) to the Griesbachian (earliest Triassic), a pattern not observed for sections in other regions. This pattern cannot be explained through secular changes in sedimentation rates, sedimentary facies, or redox conditions, all of which would have favored higher (rather than lower) TOCs and OCARs during the Griesbachian. Further, back-calculation of OC fluxes demonstrate that this pattern cannot be attributed to diagenetic loss of OC in the sediment or, possibly, to OC remineralization in the water column. The most likely explanation is a collapse of marine primary productivity across the South China region concurrently with the LPME and continuing for an extended interval into the Early Triassic. The productivity crash as well as the coeval decimation of benthic marine fauna coincided with deposition of the "boundary clay" at Meishan D, suggesting that both events were related to a large explosive volcanic eruption of uncertain provenance. In other PTB sections having a wide geographic distribution, OCARs increased on average by a factor of ~. 4. × across the LPME, largely owing to a concurrent increase in bulk accumulation rates (BARs). Radiometric dating uncertainties can account at most for only a fraction of the secular change in BARs, which are likely to reflect an increase in subaerial weathering rates and elevated fluxes of detrital material to Early Triassic marine systems. Intensification of chemical weathering relative to physical weathering may have increased the flux of nutrients to the Early Triassic ocean, enhancing marine productivity and contributing to the widespread development of marine dysoxia-anoxia. © 2012 Elsevier B.V.


Fedi M.,University of Naples Federico II | Cascone L.,GETECH
Journal of Geophysical Research: Solid Earth | Year: 2011

In potential field problems, the continuous wavelet transform (CWT) has allowed the estimation of the source properties, such as the depth to the source and the structural index (N). The natural choice for the analyzing wavelets has been the set belonging to the Poisson kernel. However, a much larger set of analyzing wavelets has been used for analyzing signals other than potential fields. Here we extend the CWT of potential fields to other wavelet families. Since the field is intrinsically dilated with Poissonian wavelets from the source depth to the measurement level, distortions are unavoidably introduced when CWT uses a different wavelet from the measurement level to other scales. To fix the problem, we define a new form for the continuous wavelet transform convolution product, called "composite continuous wavelet transform" (CCWT). CCWT removes the field dilations with Poisson wavelets, intrinsically contained at the measurement level and replaces them with dilations performed with any other kind of wavelet. The method is applied to synthetic and real cases, involving sources as poles, dipoles, intrusions in complex magnetized basement topography and buried steel drums, from measurements taken at the Stanford University test site. CCWT takes advantage from the special features of the several considered wavelets, e.g., the Gaussian wavelet is useful for its low pass filtering characteristic and Morlet wavelet for its localization property. Hence, depending on the case, an important parameter for the choice of the analyzing wavelet is its central frequency. Copyright 2011 by the American Geophysical Union.


Fedi M.,University of Naples Federico II | Florio G.,University of Naples Federico II | Cascone L.,GETECH
Geophysical Journal International | Year: 2012

We use a multiscale approach as a semi-automated interpreting tool of potential fields. The depth to the source and the structural index are estimated in two steps: first the depth to the source, as the intersection of the field ridges (lines built joining the extrema of the field at various altitudes) and secondly, the structural index by the scale function. We introduce a new criterion, called 'ridge consistency' in this strategy. The criterion is based on the principle that the structural index estimations on all the ridges converging towards the same source should be consistent. If these estimates are significantly different, field differentiation is used to lessen the interference effects from nearby sources or regional fields, to obtain a consistent set of estimates. In our multiscale framework, vertical differentiation is naturally joint to the low-pass filtering properties of the upward continuation, so is a stable process. Before applying our criterion, we studied carefully the errors on upward continuation caused by the finite size of the survey area. To this end, we analysed the complex magnetic synthetic case, known as Bishop model, and evaluated the best extrapolation algorithm and the optimal width of the area extension, needed to obtain accurate upward continuation. Afterwards, we applied the method to the depth estimation of the whole Bishop basement bathymetry. The result is a good reconstruction of the complex basement and of the shape properties of the source at the estimated points. © 2011 The Authors Geophysical Journal International © 2011 RAS.


This paper presents a reconstruction of the palaeodrainage evolution of the Niger River in West Africa in order to contribute to the understanding of sediment supply to the Niger Delta. It has been covered extensively in literature that the Niger River has undergone changes along its course in the Holocene, as implied by the large bend it makes in Mali. However, other enigmatic bends further downstream are indicative of an older and more complicated history that has yet to be understood, and is the focus of this paper. Until now, sediment supply from the Niger River has been considered as being negligible compared to that of the Benue River. The results of this study imply that the contribution from the Niger River was more important than previously thought. The Niger River obtained its present-day geometry in three phases: a Bida Basin phase (Maastrichtian-Miocene); a Iullemmeden Basin phase (Miocene-Pleistocene); and a presentday Niger River phase (Holocene). In the Miocene, an important capture event occurred, increasing the incipient drainage basin by 106 km2, thereby changing the provenance of the sediment supplied to the Niger Delta from mainly crystalline basement to mixed lithologies including sandstone, shale, limestone and volcanic outcrops. © The Geological Society of London 2014.

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