FAULT FRACTURE ZONE DETERMINATION METHOD, AND DETERMINATION SUPPORT DEVICE

PROBLEM TO BE SOLVED: To provide a fault fracture zone determination method capable of easily determining the existence of a fault fracture zone. SOLUTION: Seismometers are installed in a plurality of measuring points of the earth's surface set on a traverse line crossing the travel of a candid...

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Main Authors TAKEUCHI SHINJI, SHIMOKOUCHI TAKAFUMI, KOBAYASHI KIKUJI, SHIGENO YOSHIMASA, SAEGUSA HIROMITSU, YABUUCHI SATOSHI
Format Patent
LanguageEnglish
Published 29.06.2006
Subjects
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
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Summary:PROBLEM TO BE SOLVED: To provide a fault fracture zone determination method capable of easily determining the existence of a fault fracture zone. SOLUTION: Seismometers are installed in a plurality of measuring points of the earth's surface set on a traverse line crossing the travel of a candidate of the fault fracture zone in an investigated region extracted by lineament, the horizontal component and vertical component of coming seismic wave are measured respectively, a frequency spectral ratio between respective measuring points is determined based on an initial motion section of the measured seismic wave, each value derived by integrating the absolute value of difference between each frequency spectral ratio and a reference spectral ratio estimated not to be influenced by the fault fracture zone is calculated as an index value, and it is determined based on the index value whether the candidate of the fault fracture zone exists really. COPYRIGHT: (C)2006,JPO&NCIPI
Bibliography:Application Number: JP20040362459