| We presently possess three LaCoste G gravimeters, and have carried
out more than 120 surveys for; minerals, oil and gas, geothermal zones and hot
springs, and geologic structures since 1967. |
Gravity measurement and GPS survey
in snow covered area (March 1995; Kakkonda, Iwate Prefecture) |
|
Arid areas are best suited for gravity
measurements using GPS (Nov. 2000; Camarones, Chile) |
|
| It is necessary to accurately determine the
elevation of each station, and we had used leveling for this purpose, but
since 1990 we have been using GPS survey for accurate and efficient survey. |
GPS can receive signals in forests
areas (Akinomiya, Akita Pref., June, 1998) |
|
Examples of gravity surveys carried out in recent years. |
| ■Komiya and Shimotsushima areas, Fukushima
Pref. (geologic structure, 2001) |
| ■Camarones, Chile (mineral resources,
2000) |
| ■Akinomiya, Akita Pref. (geothermal,
1997, 1998) |
| ■Musadake, Hokkaido (geothermal, 1997,
1998) |
| ■Pastos Largos, Chile (mineral resources,
1996) |
| ■Kakkonda, Iwate Pref. (geothermal, 1995) |
| ■Shibetsudake, Hokkaido (geothermal,
1993) |
| ■Amemasudake, Hokkaido (geothermal, 1991) |
| ■Viti Levu, Fiji (mineral resources,
1990, 1991) |
| ■Okushiri, Hokkaido (geothermal, 1990) |
An example of 2-D multilayer gravity
|
|
