1231
P76
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The -D Resistivity Survey Method Using for the Geological Structure Determination
of the Limestone in Tamot Sub-District, Tamot District, Phatthalung Province
õćèč
ýĆ
Öéĉĝ
ǰ÷ĂÖĂøćß
1
ÿč
üĉ
ì÷Ť
ǰđóßøĀš
ü÷úċ
Ö
2*
ǰǰÿč
đÝîêŤ
ǰóøĀöđĀöČ
Ăî
3
ǰĒúąíĊ
øđéßǰĔĀâŠ
ïÖ
3
Phanusak Yokorach
1
, Suwit Phethuayluk
2*
, Suchane Prommuean
3
and Teeradach Yaibok
3
ïìÙĆ
é÷Š
Ă
Üćîüĉ
ÝĆ
÷îĊĚ
đðŨ
îÖćøýċ
ÖþćēÙøÜÿøš
ćÜìćÜíøèĊ
ÿĆ
èåćî×ĂÜĀĉ
îðĎ
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đüèóČĚ
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ǰ êĞ
ćïúêąēĀöéǰĂĞ
ćđõĂêąēĀöéǰ
ÝĆ
ÜĀüĆ
éóĆ
ìúč
Üǰēé÷Ĕßš
üĉ
íĊ
ÖćøÿĞ
ćøüÝüĆ
éÙŠ
ćÿõćóêš
ćîĕôôŜ
ćĒïïǰ2D-ERI ēé÷Ĕßš
øĎ
ð×ïüî×ĆĚ
üĒïïĕéēóúǰ– ĕéēóúǰìĊę
öĊ
øą÷ąĀŠ
ćÜ
øąĀüŠ
ćÜ×ĆĚ
üđìŠ
ćÖĆ
ï 50 đöêø öĊ
úĞ
ćéĆ
ïßĆĚ
îÙüćöúċ
Ö(n)ìĆĚ
ÜĀöéǰ17 ßĆĚ
îǰöĊ
Ùüćöúċ
ÖÿĎ
Üÿč
éǰ225 đöêø Ùüćö÷ćüêúĂéĒîüÿĞ
ćøüÝǰ
1.8 Öĉ
ēúđöêøǰēé÷ÿøš
ćÜĒïïÝĞ
ćúĂÜéš
ü÷ēðøĒÖøöǰRES2DINV đüĂøŤ
ßĆę
îǰ4.05 óïüŠ
ćúĆ
ÖþèąēÙøÜÿøš
ćÜìćÜíøèĊ
üĉ
ì÷ć×ĂÜ
Āĉ
îðĎ
îìĊę
øą÷ąǰ0-450 đöêø đðŨ
îêąÖĂîÙüĂđìĂøŤ
îćøĊ
ĒúąĀĉ
îéĉ
îêąÖĂîēé÷öĊ
Āĉ
îðĎ
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ïĂ÷ĎŠ
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ÙŠ
ćÿõćóêš
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ĕôôŜ
ć×ĂÜĀĉ
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ÙŠ
ćĂ÷ĎŠ
Ĕîߊ
üÜǰ2,080–6,500ǰēĂĀŤ
öđöêøǰēé÷ìĊę
õĎ
đ×ćĀĉ
îðĎ
îìĊę
ēóúŠ
ìĊę
øą÷ąǰ450-1,350 đöêø ÝąöĊ
Āĉ
îåćî
đðŨ
îĀĉ
îĒÖøîĉ
êúċ
ÖĂ÷ĎŠ
ìĊę
ǰ50–250ǰđöêø ĒúąîĂÖÝćÖîĊĚ
÷Ć
ÜóïēÙøÜÿøš
ćÜìĊę
öĊ
úĆ
ÖþèąđðŨ
îēóøÜĀĉ
îðĎ
îìĊę
Ùüćöúċ
Öðøąöćèǰ70-
200 đöêø Ă÷ĎŠ
ìĊę
øą÷ąǰ1,050-1,250 đöêø ×ĂÜĒîüÖćøÿĞ
ćøüÝǰ
ÙĞ
ćÿĞ
ćÙĆ
â:
Āĉ
îðĎ
î
ǰǰ
õćóêĆ
é×üćÜÿõćóêš
ćîĕôôŜ
ćĒïïǰ ǰöĉ
êĉ
ǰ
ǰ
øĎ
ð×ïüî×ĆĚ
üĒïïĕéēóú–ĕéēóú
ǰǰ
Abstract
This study research is the geomorphological structure of the limestone in the area of Tamot
Sub-District, Tamot district, Phatthalung province. The electrical resistivity survey of 2D-ERI was used
by the diploe-dipole configuration with 50 m of the electrode spacing, 225 m of maximum depth for
17 levels and 1.8 km of the line survey length. The 2D-ERI model was simulated by RES2DINV v.4.05
program. The result was shown the geological structure of Quaternary and sedimentary rock with
profile along 0-450 m, reserved by the limestone with resistivity of 2,080 – 6,500 ņm. The limestone
out croup on 450-1,350 m of profile length was reserved by the granitic base rock at 50-250 m of
depth. Furthermore, the characterization of a cavity limestone was found at 70-200 m of depth, at the
range 1,050-1,250 m along the profile line.
Keyword:
Limestone, 2D Electrical Resistivity Image, Dipole-Dipole Electrode Configuration
1
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ì÷ćýćÿêøŤ
ǰöĀćüĉ
ì÷ćúĆ
÷ìĆ
Öþĉ
èǰóĆ
ìúč
Üǰ93210
2
ǰñý., ÿć×ćôŗ
ÿĉ
ÖÿŤ
ǰÙèąüĉ
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÷ìĆ
Öþĉ
èǰóĆ
ìúč
Üǰ93210
3
ǰîĆ
Öüĉ
ßćßĊ
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ǰöĀćüĉ
ì÷ćúĆ
÷ìĆ
Öþĉ
èǰóĆ
ìúč
Üǰ93210
* Corresponding author: Tel.: 098-0163961. E-mail address:
