Journal ArticleDOI
Historical development of the gravity method in exploration
Misac N. Nabighian,Mark E. Ander,V.J.S. Grauch,R. O. Hansen,T. R. LaFehr,Yaoguo Li,W. C. Pearson,J. W. Peirce,Jeffrey D. Phillips,M. E. Ruder +9 more
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The gravity method was the first geophysical technique to be used in oil and gas exploration and has continued to be an important and sometimes crucial constraint in a number of exploration areas as discussed by the authors.Abstract:
The gravity method was the first geophysical technique to be used in oil and gas exploration. Despite being eclipsed by seismology, it has continued to be an important and sometimes crucial constraint in a number of exploration areas. In oil exploration the gravity method is particularly applicable in salt provinces, overthrust and foothills belts, underexplored basins, and targets of interest that underlie high-velocity zones. The gravity method is used frequently in mining applications to map subsurface geology and to directly calculate ore reserves for some massive sulfide orebodies. There is also a modest increase in the use of gravity techniques in specialized investigations for shallow targets. Gravimeters have undergone continuous improvement during the past 25 years, particularly in their ability to function in a dynamic environment. This and the advent ofread more
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Journal ArticleDOI
Soil Moisture Measurement for Ecological and Hydrological Watershed-Scale Observatories: A Review
David A. Robinson,Colin S. Campbell,Jan W. Hopmans,Brian K. Hornbuckle,Scott B. Jones,Rosemary Knight,Fred L. Ogden,John S. Selker,Ole Wendroth +8 more
TL;DR: In this article, the authors review advances in sensor technology, particularly emerging geophysical methods and distributed sensors, aimed at bridging this gap and offer a vision for future research, listing many of the current scientific and technical challenges.
Journal ArticleDOI
The historical development of the magnetic method in exploration
Misac N. Nabighian,V.J.S. Grauch,R. O. Hansen,Thomas R. LaFehr,Yaoguo Li,J. W. Peirce,Jeffrey D. Phillips,M. E. Ruder +7 more
TL;DR: The magnetic method is the primary exploration tool in the search for minerals, oil and gas, geothermal resources, and groundwater, and for a variety of other purposes such as natural hazards assessment, mapping impact structures, and engineering and environmental studies as discussed by the authors.
Journal ArticleDOI
Advancing process‐based watershed hydrological research using near‐surface geophysics: A vision for, and review of, electrical and magnetic geophysical methods
David A. Robinson,Andrew Binley,N. Crook,Frederick D. Day-Lewis,Ty P. A. Ferré,V. J. S. Grauch,Rosemary Knight,Michael D. Knoll,Venkat Lakshmi,Richard D. Miller,Jonathan E. Nyquist,L. Pellerin,Kamini Singha,Lee Slater +13 more
TL;DR: The paper identifies instruments, provides examples of their use, and describes how synergy between measurement and modelling could be achieved, and provides a vision for the use of electrical and magnetic geophysical instrumentation in watershed scale hydrology.
Book ChapterDOI
Proximal Soil Sensing: An Effective Approach for Soil Measurements in Space and Time
TL;DR: This chapter reviews proximal soil sensing, describing a large range of technologies that can be used for PSS, including electrochemical and mechanical sensors, telemetry, geographic positioning and elevation, multisensor platforms, and core measuring and down-borehole sensors.
Journal ArticleDOI
A vibrating beam MEMS accelerometer for gravity and seismic measurements
Arif Mustafazade,Milind Pandit,Chun Zhao,Guillermo Sobreviela,Zhijun Du,Philipp Steinmann,Xudong Zou,Xudong Zou,Roger T. Howe,Ashwin A. Seshia +9 more
TL;DR: The results demonstrate that vibrating beam MEMS accelerometers can be employed for measurements requiring high levels of stability and resolution with wider implications for precision measurement employing other resonant-output MEMS devices such as gyroscopes and magnetometers.
References
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Book
Potential theory in gravity and magnetic applications
TL;DR: In this article, the potential of the geomagnetic field has been studied in vector calculus, and the results of the potential have been shown to be equivalent to the conversion of units.
Journal ArticleDOI
Marine gravity anomaly from Geosat and ERS 1 satellite altimetry
TL;DR: In this article, a combination of high-density data from the dense mapping phases of Geosat and ERS 1 along with lower-density but higher-accuracy profiles from their repeat orbit phases is used to construct gravity anomalies from the two vertical deflection grids.
Journal ArticleDOI
Rapid gravity computations for two‐dimensional bodies with application to the Mendocino submarine fracture zone
TL;DR: In this paper, expressions for the vertical and horizontal components of the gravitational attraction due to a two-dimensional body of arbitrary shape by approximating it to an n-sided polygon were derived.
Book
Introduction to Geophysical Prospecting
TL;DR: In this paper, the basic principles of geophysical prospecting with emphasis on geological considerations and on geophysical instruments and methodology for the recording and processing of field data are reviewed, as well as advances in computer technology, field techniques and the analysis and interpretation of data.
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