seismic profile Articles

  • Seismic reflection, seismic crosshole and ground penetrating radar case study

    Geophysical Investigation of the Crosstown Expressway. Tampa, FL In April, 2004 Pier 97 which supported an elevated roadway in Tampa, FL was vertically displaced (collapsed) approximately 10 feet (ft). At the time of the collapse it was not known whether the collapse was associated with geological conditions at the site, specifically karst conditions, or whether is was associated with a ...


    By GeoView, Inc.

  • Stratigraphy of Quaternary inner-shelf sediments in Tai O Bay, Hong Kong, based on ground-truthed seismic profiles

    High-resolution boomer profiles from Tai O Bay, Hong Kong SAR, were ground-truthed using ten discontinuously sampled boreholes penetrating bedrock with a maximum length of 82.1 m. The relationship between depth below seabed and seismic profiles was established through the measurement of two borehole compressional-wave velocity profiles. In departure from previous interpretations, nine Quaternary ...


    By Springer

  • Seismic refraction for weather zone assessment in vibroseismic processing

    Refraction seismic measurements for the determination of the seismic velocities in the shallow subsurface have been performed close to Valence (F) for our partner Partner Gallego Technic Geophysics. 44 profiles with a length of 240m have been acquired in August 2016. Seismic velocities of the shallow geological layers and the bedrock could be determined to a depth of up to 25m. Results from ...


    By Geo2X

  • Evidence of a major environmental change recorded in a macrotidal bay (Marennes-Oléron Bay, France) by correlation between VHR seismic profiles and cores

    New, very high-resolution (25 cm) seismic profiles have revealed the internal architecture of the infilling of a macrotidal bay, the Marennes-Oléron Bay, France. Within this geometry, a major seismic unconformity has been correlated with core data. This correlation provides evidence that the seismic unconformity corresponds to a sharp grain-size decrease. Both seismic and core data indicate that ...


    By Springer

  • An environmentally–friendly integrated seismic imaging for coal exploration in the Miocene Soma Basin, Western Turkey

    Seismic reflection data from target depths of several hundred metres have been acquired and processed as an aid for lignite exploration in the Miocene Soma Basin, western Turkey. An environmentally–friendly approach was followed by acquiring the data with mini–vibroseisseismic source along crooked lines, using available mountain/forest and village roads; quality control tests were conducted to ...


    By Inderscience Publishers

  • Comparison of profiling results of attenuation and velocity of refracted P-wave in coal-seam

    In the paper the problem of effectiveness of seismic profiling of attenuation and velocity of refracted Pwave in coal-seam along mining excavation in conditions of coal-seam edge impact has been presented. For practical use of seismic attenuation profiling, special measurement and interpretation methodology has been prepared. The measure of calculated attenuation is the value of attenuation ...


    By GEOSPECTRUM S.C.

  • Fracture and Cavity Detection and Mapping in construction foundations case study-1

    Area of Implementation: Chalepa, Chania, Crete, Hellas System Used: SIR-10A (GSSI) w Antenna 300MHz (GSSI) Scope: To detect and map fractures and cavities in bedrock at a construction site Method of investigation: Profile Grid In-situ GPR System Calibration: By comparing GPR interpretation results to actual ...


    By Geomorph Instruments

  • Electromagnetic detection of a 410-km-deep melt layer in the southwestern United States.

    A deep-seated melt or fluid layer on top of the 410-km-deep seismic discontinuity in Earth’s upper mantle, as proposed in the transition-zone ‘waterfilter’ hypothesis, may have significant bearing on mantle dynamics and chemical differentiation. The geophysical detection of such a layer has, however, proved difficult. Magnetotelluric and geomagnetic depth sounding are geophysical methods ...


    By Hargis + Associates Inc

  • Fold geometry model of Coyote hills segment of Puente hills blind-thrust system applied to interpretation of long-term water level data

    Recent work by others along the Coyote Hills segment of the Puente Hills blind-thrust system has imaged the near-surface structural features generated by activity of that intrabasin fault. Published shallow seismic profiles near the south flank of the Coyote Hills indicate the blindthrust system is expressed by south-facing folding of Quaternary terrestrial sediments underlying the hills. ...


    By Hargis + Associates Inc

  • MASW and resistivity sounding case study

    Anclote Natural Gas Conversion Project, Pasco County, FL  Our client was coordinating the conversion of an oil-burning power plant to natural gas. As part of the associated geotechnical study, GeoView, Inc. was tasked with determining the S-wave velocity and vertical resistivity structure at the site. For the seismic portion of the study, MASW (Multi-channel Analysis of Surface ...


    By GeoView, Inc.

  • Bridge Height Limits Transport of Cl02 Storage Tanks

    Located in Northern Ontario on the Trans Canada Highway is a bridge that enables pedestrians and vehicles to cross the Spanish River. The bridge itself holds no place in the annals of Canadian history. It is in fact, quite unremarkable as a typical bridge found in the area. However, the Spanish River Bridge represented a major problem for an engineering project rquired by a local Bleach Pulp ...


    By Fabricated Plastics Limited

  • Interview with Ronald Ebelhar, 2015 Chairman of the ASTM Board

    Ron Ebelhar has provided leadership in civil engineering projects and ASTM technical committee work since the 1970s. This year, he brings his experience to his elected position as chairman of the ASTM board of directors. You have worked on dozens of engineering projects since getting your degrees in civil engineering. What are some of the most interesting and challenging jobs you ...


    By ASTM International

  • Why waste management

    Since 1973 we are a part of environmentally friendly and economical shredding systems for all types of waste. Since 1973 MERCODOR GmbH Sondermaschinenbau KG (Special Products), Frankfurt/Main, The company’s shredding systems are used for the reduction of waste volume in various commercial and industrial applications, including hotels, hospitals, commercial kitchens and cruise ...

  • TSCA Reform - Business strategies in Times of Political Gridlock

    Change Is the Only Constant Most would agree that legislative reform of the U.S. Toxic Substances Control Act (TSCA) is long overdue. Few agree on what to change and how best to proceed. If you throw in the 2012 presidential election, you have gridlock. Commerce marches on, however, and with the Environmental Protection Agency reinventing TSCA implementation in innovative and effective ways, ...


    By Bergeson & Campbell, P.C.

  • TSCA Reform - Business strategies in Times of Political Gridlock

    Change Is the Only Constant Most would agree that legislative reform of the U.S. Toxic Substances Control Act (TSCA) is long overdue. Few agree on what to change and how best to proceed. If you throw in the 2012 presidential election, you have gridlock. Commerce marches on, however, and with the Environmental Protection Agency reinventing TSCA implementation in innovative and effective ways, ...


    By Acta Group

  • SVFlux and SVSlope in UTSA Senior Project - Bell County Earthen Dam

    General This article presents a recent project performed by undergraduate students at The University of Texas at San Antonio. Their project is the culmination their degrees in a capstone class. The objective of the class was to present an opportunity to apply design skills to execution of an open-ended integrated civil engineering design project, including field and laboratory ...


    By SoilVision Systems Ltd.

  • Waste not, want not

    Consultant Andy Ive considers solutions which not only comply but also enhance the environmental profile of today’s industrial companies. Until recently the prevailing perception in many industries, particularly those operating in emerging market areas has been that waste is an unwelcome inconvenience. The primary infrastructure of most companies was fundamentally not designed to deal with waste ...


    By Ive Design

  • Diversion Deposits, Grants Giving a Boost to C&D Diversion

    Waste characterization studies show a fairly high percentage of potentially recyclable construction and demolition materials going into the landfill. An innovative program in California taps into public sector incentives and private sector investments. Part II IN 1998, the city of San Jose, California conducted a waste composition study to determine what materials were still going into ...


    By BioCycle Magazine

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