Near-surface thermal prospecting: Review of processing and interpretation

Journal Article · Sun May 01 00:00:00 EDT 1994 · Geophysics; (United States)

DOI:https://doi.org/10.1190/1.1443632· OSTI ID:6918111

Khesin, B E ^[1]; Eppelbaum, L V ^[2]

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1. Ben Gurion Univ. of the Negev, Beer-Sheva (Israel). Dept. of Geology
2. Tel Aviv Univ. (Israel). Dept. of Geophysics and Planetary Sciences

Temperature measurements at shallow depths (up to 3 m) contain useful information about features of the geological structures in the areas under investigation; however, the noise caused by seasonal temperature variations and terrain relief effects may significantly distort the observed temperature field. Therefore, procedures are developed for the calculation and removal of these noise sources: (a) seasonal variations are first eliminated by a procedure using repeated observations; (b) terrain relief corrections are calculated by a correlation technique, which facilitates the identification of anomalies associated with concealed geological features. Essential similarities between thermal and magnetic prospecting make it possible to apply to thermal prospecting modifications of the rapid methods of characteristic points and tangents developed for magnetic prospecting. These methods are applicable to conditions of inclined relief, arbitrary magnetization (polarization), and an unknown level of the normal field. The methods can be used to locate disturbing bodies by their associated temperature anomalies. Interpretation is made possible by approximating bodies by a dipping thin sheet or a horizontal circular cylinder. The interpretation results obtained both on models and polymetallic (Greater Caucasus) and oil and gas (Middle Kura Depression) deposits testify to the accuracy and reliability of these methods. These methods were also used successfully for interpretation of temperature anomaly over underground cavity in Cracov (Poland).

• OSTI ID: 6918111
• Journal Information: Geophysics; (United States), Vol. 59:5; ISSN 0016-8033
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
58 GEOSCIENCES
NATURAL GAS DEPOSITS
TEMPERATURE SURVEYS
PETROLEUM DEPOSITS
BACKGROUND NOISE
CORRECTIONS
DATA ANALYSIS
RUSSIAN FEDERATION
EASTERN EUROPE
EUROPE
GEOLOGIC DEPOSITS
GEOPHYSICAL SURVEYS
MINERAL RESOURCES
NOISE
RESOURCES
SURVEYS
020200* - Petroleum- Reserves
Geology
& Exploration
030200 - Natural Gas- Reserves
Geology
& Exploration
580000 - Geosciences