Photogrammetric Techniques Applied In The Development Of Geothermal Resources In Matsukawa And Otake Geothermal Areas Using A Vector Method
Journal Article: Photogrammetric Techniques Applied In The Development Of Geothermal Resources In Matsukawa And Otake Geothermal Areas Using A Vector Method
AbstractIn the present paper, descriptive and technical problems concerning C.V.C.M. are discussed, in order to formulate a quantitative estimation of subterranean structure. Though geologic exploration involves tectonic elements, and geophysical exploration involves physical quantities as their respective objects of observation, C.V.C.M. deals with geometric quantities as its objects of observation. The objects of observation are converted into geometric quantities (vectors) for the observation of their frequency, that is, the periodicity and direction. The C. V. process of tectonic linear patterns on the aerial photographs is a branch of C.V.C.M., which most requires geodetic experience and skill in the analytical process through stereoscopic examination of aerial photographs, and the electronic quantitative measuring process can be applied consistently. C. V., once transformed, is expressed in terms of x, y & z axes or direction cosine, being in no way different in nature from a geometric vector, but in the case of vectors handled under the C. V. process, the vector density further constitutes an important factor for estimation. In our experience, an appropriate C. V. density is deemed to be 500-1000 per km2 in the case of geologic maps at a scale of some 1 : 5000. In analyzing the geological structure, the basic C. V. required for compilation are selected from among a group of C. V. 's and applied as the framework for map projection of various geological structures. After such procedures, the position and the depth of the geothermal reservoir in the Matsukawa and Otake areas are successfully determined. The geothermal zones are controlled by the C. V. of the NE-SW and the NS in Matsukawa area, and by the C. V. of the NE-SW, the EW and the NS in Otake, respectively. And also, the distribution of resources shows the presence of various zonal harmonic periodicity.
- N. Todoki
- Published Journal
- Geothermics, 1970
- Not Provided
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N. Todoki. 1970. Photogrammetric Techniques Applied In The Development Of Geothermal Resources In Matsukawa And Otake Geothermal Areas Using A Vector Method. Geothermics. (!) .