seismic refractive index method of mining

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Seismic Refraction | HGI – hydroGEOPHYSICS

Seismic Refraction. Seismic refraction is one of the more commonly used seismic methods and has many applications. In geotechnical engineering and mining applications, we have used this technique to determine depth to bedrock and rippability of for design and cost estimates. Groundwater applications include mapping bedrock channels, identifying fault and fracture zones, water table mapping ...

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seismic_refraction_versus_refl - Enviroscan, Inc.

Seismic Reflection. Seismic reflection uses field equipment similar to seismic refraction, but field and data processing procedures are employed to maximize the energy reflected along near vertical ray paths by subsurface density contrasts (see Seismic Refraction Geometry below).

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Seismic Refractive Index Method Of Mining - cz-eu.eu

Seismic Refractive Index Method Of Mining. AN ACCURATE GRAPHICAL METHOD FOR INTERPRETING SEISMIC . A method of refraction computing is described which establishes . clay layer at a new mining area in . applications of seismic refraction method: . Get Price And Support Online; refraction seismic for coal exploration - BINQ Mining

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Gravity, Electrical, Magnetic and Seismic Methods in ...

Gravity, Electrical, Magnetic and Seismic Methods . Gravity Methods. The gravity field of the Earth can be measured by timing the free fall of an object in a vacuum, by measuring the period of a pendulum, or in various other ways. Today almost all gravity surveying is done with gravimeters.

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(PDF) Near-surface seismic refraction applied to exploring ...

Helwan, Cairo, Egypt In the present study, the shallow seismic refraction method is e-mail: [email protected] applied to investigate the depth and the subsurface geological 106 Arab J Geosci (2010) 3:105–112 conditions of the clay layer at the investigated site.

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seismic refraction equipment

Alibaba.com offers 129 seismic refraction equipment products. About 27% of these are testing equipment, 3% are other electronic measuring instruments, and 2% are industrial metal detectors. A wide variety of seismic refraction equipment options are available to you, There are 49 seismic refraction equipment suppliers, mainly located in Asia.

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Developing cost-effective seismic mineral exploration ...

Developing cost-effective seismic mineral exploration methods using a landstreamer and a drophammer ... The mining operation stopped in year 1979 with most of the mining taking place at ...

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Archived: High-resolution 3D surface seismic method and ...

High-resolution 3D surface seismic method and former coal geophysics program of a US coal company Lawrence M. Gochioco, GX Technology Corporation, Houston, Texas Introduction One of the best kept technology secrets in US coal mining history was that there was once a robust coal geophysics program that was fully utilized by a local

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What is SEISMIC REFRACTION? What does SEISMIC ... - YouTube

 · The seismic refraction method utilizes the refraction of seismic waves on geologic layers and rock/soil units in order to characterize the subsurface geologic conditions and geologic structure ...

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Seismic Refraction Surveying - Official Portal of UKM

1916: Seismic refraction developed to locate artillery guns by measurement of recoil. 1921: 'Seismos' company founded to use seismic refraction to map salt domes, often associated with hydrocarbon traps. 1920: Practical seismic reflection methods developed. Within 10 years, the dominant method of hydrocarbon exploration.

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THE REFRACTION SEISMIC - Mining Directory

The seismic survey, before the sampling stage, leads to the cost effective exploration. One must know where the paleochannels are, before any drill or pit sampling can take place. The seismic profile-section costs much less than drilling, while provides more information. The drill, pit or bulk sampling is then reduced to testing significant areas.

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seismic refraction equipment

Alibaba.com offers 129 seismic refraction equipment products. About 27% of these are testing equipment, 3% are other electronic measuring instruments, and 2% are industrial metal detectors. A wide variety of seismic refraction equipment options are available to you, There are 49 seismic refraction equipment suppliers, mainly located in Asia.

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Seismic Refraction Geophysical Method - Subsurface ...

Seismic refraction is a geophysical method used for investigating subsurface ground conditions by utilising surface-sourced seismic waves. Data acquired on site is computer processed and interpreted to produce models of the seismic velocity and layer thickness of the subsurface ground structure.

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Seismic Methods - Draig Geoscience

Seismic methods can provide valuable information of the subsurface, such as the seismic velocity structure of the geology (e.g. using seismic refraction, surface-wave methods) and the presence of geological layers due to their seismic reflectivity (e.g. seismic reflection).

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GEOPHYSICAL METHODS IN EXPLORATION AND MINERAL ...

subsurface may not be prohibitive. Reflection seismic methods provide fine structural detail and refraction methods provide precise estimates of depth to lithologies of differing acoustic impedance. The refraction method has been used in mineral investigations to map low-velocity alluvial deposits such as those that may contain gold, tin, or sand

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(PDF) Seismic methods in mineral exploration and mine ...

However, today there are few reports on sulfide lens (1.2 km) that included P-P, P-S, S-P, and S-S waves, the use of seismic methods for mining applications in Russia. demonstrating that mode-converted and shear waves also are valu- In contrast, in the western and central parts of Europe, especially in able signals to record for mineral ...

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Seismic reflection method - Ground geophysics techniques

Seismic reflection is ideal for mapping geology at depths exceeding 50 m. Deep seismic reflection surveying is the most advanced technique in geophysics today, thanks to its application on a huge scale for oil and gas exploration.

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Seismic Refraction | Methods | site

The seismic refraction method is based on the measurement of the travel time of seismic waves refracted at the interfaces between subsurface layers of different velocity. Seismic energy is provided by a source ('shot') located on the surface. Energy radiates out from the shot point, either travelling directly through the upper layer (direct ...

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Ludger Mintrop - SEG Wiki

Ludger Mintrop (July 18,1880 - January 1, 1956) was a German mine surveyor and geophysicist. Mintrop is considered the inventor of the seismic method for exploration of hydrocarbons and minerals (Patent 1916), through the seismic refraction method.

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THE REFRACTION SEISMIC - Mining Directory

The seismic survey, before the sampling stage, leads to the cost effective exploration. One must know where the paleochannels are, before any drill or pit sampling can take place. The seismic profile-section costs much less than drilling, while provides more information. The drill, pit or bulk sampling is then reduced to testing significant areas.

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Mining Exploration: A New Frontier for the Canadian ...

Mining Exploration: A New Frontier for the Canadian Seismic Industry. David W ... refraction static correction, first-break and NMO stretch mute and the preservation of large source-receiver offset traces. ... Encouragement provided by the results of research to date may lead to further application of seismic methods by the mining industry in ...

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Underground Applications of Seismic Measurements in a ...

PDF | The seismic refraction method is used underground in a Saskatchewan potash mine to monitor the thickness of the salt formation over the mine. Frequencies over 100 Hz characterize the seismic ...

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GEOPHYSICAL METHODS IN EXPLORATION AND MINERAL ...

subsurface may not be prohibitive. Reflection seismic methods provide fine structural detail and refraction methods provide precise estimates of depth to lithologies of differing acoustic impedance. The refraction method has been used in mineral investigations to map low-velocity alluvial deposits such as those that may contain gold, tin, or sand

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APPENDIX 6 SEISMIC REFRACTION METHOD

The seismic refraction method has not been used in the mining industry as widely as other geophysical methods. Consequently, we provide here only a description of the fundamental aspects of the method. The reader requiring greater detail is referred to the descriptions given by Lankston (1990). A6.2 Acquisition and processing of seismic ...

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CDC - Mining - High Resolution Seismic Refraction ...

High resolution seismic refraction tomography has proved to be a useful tool to effectively estimate depth of blast induced damage in a mine face. Excavation blast damage can be as shallow as 1 to 2 m and requires resolution at a fraction of a meter for effective imaging. In this study, an ...

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The Seismic Refraction Method | Frontier Geosciences Inc.

The seismic refraction method, due to its versatility, is one of the most commonly used geophysical methods in engineering, mining, groundwater exploration and environmental site investigations. Based on favourable density contrasts that generally exist between geological materials, the refraction method is utilised to provide detailed ...

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Reflection seismology - Wikipedia

Reflection seismology (or seismic reflection) is a method of exploration geophysics that uses the principles of seismology to estimate the properties of the Earth's subsurface from reflected seismic waves.The method requires a controlled seismic source of energy, such as dynamite or Tovex blast, a specialized air gun or a seismic vibrator, commonly known by the trademark name Vibroseis.

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Seismic Refraction Geophysical Method - Subsurface ...

Seismic refraction is a geophysical method used for investigating subsurface ground conditions by utilising surface-sourced seismic waves. Data acquired on site is computer processed and interpreted to produce models of the seismic velocity and layer thickness of the subsurface ground structure.

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Seismic refraction - Wikipedia

Seismic refraction is a geophysical principle (see refraction) governed by Snell's Law.Used in the fields of engineering geology, geotechnical engineering and exploration geophysics, seismic refraction traverses (seismic lines) are performed using a seismograph(s) and/or geophone(s), in an array and an energy source. The seismic refraction method utilizes the refraction of seismic waves on ...

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Seismic Methods | Environmental Geophysics | US EPA

Seismic methods are the most commonly conducted geophysical surveys for engineering investigations. Seismic refraction provides engineers and geologists with the most basic of geologic data via simple procedures with common equipment. Any mechanical vibration is initiated by a source and travels to the location where the vibration is noted. ...

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Seismic Reflection and Refraction surveys.

Seismic Refraction. The seismic refraction method is based on the measurement of the travel time of seismic waves refracted at the interfaces between subsurface layers of different velocity. Seismic energy is provided by a source ('shot') located on the surface. For shallow applications this normally comprises a hammer and plate, weight drop or ...

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Seismic refraction method: A technique for determining the ...

Seismic refraction method: A technique for determining the thickness of stratified substratum Article (PDF Available) in American Journal of Applied Sciences 10(8):857-862 · July 2013 with 2,409 ...

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Mining Exploration: A New Frontier for the Canadian ...

Mining Exploration: A New Frontier for the Canadian Seismic Industry. David W ... refraction static correction, first-break and NMO stretch mute and the preservation of large source-receiver offset traces. ... Encouragement provided by the results of research to date may lead to further application of seismic methods by the mining industry in ...

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Illustrative Geophysical Exploration Methods Poster

Reflection seismic methods provide fine structural detail and refraction methods provide precise estimates of depth to lithologies of differing acoustic impedance. The refraction method has been used in mineral investigations to map low-velocity alluvial deposits such as those that may contain gold, tin, or sand and gravel.

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Geophysical Methods & Applications

using seismic acoustical waves. Reflection and Refraction are the most commonly used seismic techniques. These methods determine geological structure and rock velocities by either refracting or reflecting waves off boundaries between rock units with different seismic velocities or impedance. Seismic Refraction: Seismic refraction investigates ...

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Seismic refraction survey – Mine Closure

The seismic refraction method, due to its versatility, is one of the most commonly used geophysical methods in engineering, mining, groundwater exploration and environmental site investigations. Based on favourable density contrasts that generally exist between geological materials, the refraction method is utilised to provide detailed ...

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