Cargando…
Environmental applications of geophysical surveying techniques /
Geophysical techniques provide useful information about the subsurface with suitable techniques chosen for particular environments or problems. Thus resistivity would be considered more useful than gravity for the detection of contaminant plumes whereas gravity is ideal for the detection of cavities...
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Otros Autores: | , |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
New York :
Nova Publishers,
[2013]
|
| Edición: | Second edition. |
| Colección: | Geology and mineralogy research developments
|
| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- 1. Introduction to environmental geophysics ; Introduction
- Aims and scope of the book
- Five stages in planning and executing a geophysical survey
- Stage I : initial planning
- Stage II : site characterization
- Stage III : data collection
- Stage IV : post-survey processing and visual formats display
- Stage V : report presentation
- 2. Gravity geophysical technique ; Introduction
- Density variations in the near subsurface
- Measuring absolute and relative gravity
- Gravity on a rotating Earth
- Corrections to gravity data
- Summary of corrections
- Gravity anomalies associated with regular shaped bodies
- Direct interpretation of gravity anomalies
- Processing gravity data
- Applications of gravity surveying
- 3. Magnetic geophysical technique ; Introduction
- Basic magnetic principles
- The susceptibility of rocks and minerals
- Remanent magnetism
- Earth's magnetic field
- Secular variation of the Earth's magnetic field
- Paleomagnetism and apparent polar wandering curves
- Magnetic field reversals
- Origin of the Earth's magnetic field
- Magnetic surveying techniques
- Airborne and shipborne magnetic survey
- Processing magnetic data
- Magnetic anomaly patterns
- Depth estimates
- Gradiometer measurements
- Applications of magnetic surveying
- 4. Electrical geophysical technique ; Introduction
- Basic electrical theory
- Resistivity of substances
- Current flow and current density in a non-homogeneous medium
- Advantages and disadvantages of various electrode arrays
- Resistivity surveying equipment
- Resistivity surveying techniques
- Resistivity profiling
- Vertical electrical sounding (VES)
- Spontaneous potential (SP) surveying
- Induced polarization (IP) surveying
- IP surveying and display of IP data
- Applications of IP surveys
- 5. Electromagnetic geophysical techniques I ; Introduction
- Terminology and basic concepts of EM surveying
- Very low frequency (VLF) survey
- VLF surveying equipment
- Presentation of VLF data
- Instrument types for constant frequency EM survey
- Effects of dipole orientation
- Theoretical background to constant frequency EM instruments
- Time domain electromagnetic survey (TDEM)
- Applications of EM surveys
- 6. Electromagnetic geophysical techniques II : ground penetrating radar ; Introduction
- Important considerations in the acquisition of radar data
- Main components and types of GPR systems
- Deployment modes of GPR systems
- Main components of a radar profile
- Subsurface properties
- GPR survey parameters
- Processing of GPR data
- Applications of GPR surveys
- 7. Seismic geophysical techniques ; Introduction
- Theoretical concepts
- Seismic surveying equipment
- Noise on seismic surveys
- Seismic wave refraction
- Considerations for seismic refraction surveys
- Seismic wave reflection
- Applications of seismic surveys
- 8. Other geophysical techniques employed in environmental studies ; Introduction
- Radiometric surveys
- Radiometric surveying
- Magnetotelluric surveys
- Borehole logging
- Logging methodology
- Spontaneous potential (SP) log
- Cross-hole measurements.