Essays about: "electrical resistivity"

Showing result 31 - 35 of 51 essays containing the words electrical resistivity.

  1. 31. Measurement Strategies for Geoelectrical Tomography: Specialized Techniques for Multichannel Instruments

    University essay from Lunds universitet/Matematik LTH

    Author : David Belfrage; [2017]
    Keywords : Electrical resistivity tomography; tomography; optimization; Mathematics and Statistics;

    Abstract : How to select which measurements to make during a geoelectrical resistivity survey has been an active field of research for decades. Despite this techniques for optimizing the measurement sequences so as to take full advantage of the multichannel capabilities of modern state of the art equipment are scarce. READ MORE

  3. 32. TEM investigation on Challapampa aquifer, Oruro Bolivia

    University essay from Lunds universitet/Geologiska institutionen

    Author : Måns Larsson; [2016]
    Keywords : kartering; survey geofysik; sedimentologi; geology; hydrogeology; geophysics; sedimentary; geologi; hydrogeologi; Earth and Environmental Sciences;

    Abstract : I denna studie utfördes en TEM (transient elektromagnetisk) undersökning på den Bolivianska altiplanon, norr om staden Oruro. I Oruro finns det ett underskott av dricksvatten och deras huvudsakliga vattenförsörjning kommer från aquiferen Challapampa. READ MORE

  4. 33. Groundwater occurrence and quality in Bulawayo province, Zimbabwe

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Anton Nygren; Edvard Nordenskjöld; Erik Östblom; [2016]
    Keywords : total dissolved solids; salinity; electrical conductivity; electrical resistivity tomography; vertical electrical sounding; magnetic field; auger holes; saturated hydraulic conductivity;

    Abstract : This study focused on determining the groundwater flow paths in the crystalline subsurface rocks of the Bulawayo metropolitan, Zimbabwe, through analysing the discontinuities of the electrical properties of the ground, as well as in the magnetic field of the underlying rocks. Further, borehole water quality was analysed by measuring and mapping several chemical parameters, specifically TDS, salinity and the electrical conductivity. READ MORE

  5. 34. Water Well Investigations in the Nampula Province, Mozambique - A Minor Field Study

    University essay from Lunds universitet/Teknisk geologi; Lunds universitet/Ekosystemteknik (CI)

    Author : Elin Olsson; [2016]
    Keywords : Geophysical borehole logging; resistivity; natural gamma radiation; Nampula; Mozambique; Technology and Engineering;

    Abstract : Access to clean water for drinking and sanitation is a human right. Today water scarcity is a large problem and inequality in access to safe water is a striking truth. READ MORE

  6. 35. Spectral time domain induced polarization : factors affecting spectral data information content and applicability to geological characterization

    University essay from Lunds universitet/Geologiska institutionen

    Author : Azadeh Rezvani; [2015]
    Keywords : Liikavaar; geology; geophysics; resistivity; induced polarization; Aititk mine; AarhusInv; Earth and Environmental Sciences;

    Abstract : The geo-electrical survey (resistivity and induced polarization) with different settings, arrangements, time base, spreads and waveforms (50% and 100% duty cycle waveform) was carried out over the Liikavaara depo-sit, near the Aitik mine, in northern Sweden and all the measured data was inverted in two different softwares: Res2Dinv and AarhusInv. Surveys of induced polarization (IP) often contain data of low quality, due to the high sensitivity against noise sources and coupling effects. READ MORE