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Title :地質構造解析における歪楕円体の適合度c値の提唱
Title alternative :Proposed Consistency c-value for Strain Ellipsoids in Geological Structure Analysis
Authors :林, 大五郎
Authors alternative :Hayashi, Daigoro
Issue Date :25-Mar-1995
Abstract :I have performed the three dimensional strain analysis of the Kayo Formation, Kunchan Group around Ban-zaki, middle north of Okinawa-jima by means of the "least square method" and "average method". The least square method was called the "strain analysis technique 3" and the average method was called the "strain analysis technique 2" in my paper (Hayashi, 1994). The results of both methods are fairly different. The "c-value" is introduced to explain the difference. The difference between the strain ellipsoid calculated using the least square method and associated strain ellipses decreases as the c-value decreases, though the difference between the strain ellipsoid calculated using the average method and associated strain ellipses does not necessarily decrease. Therefore, the strain ellipsoid obtained by the least square method is expected to approach a true strain ellipsoid as the c-value decreases, though the strain ellipsoid obtained by the average method is not expected to approach a true strain ellipsoid.
沖縄島中北部バン崎周辺の国頭層群嘉陽層の3次元歪解析を最小2乗法と平均法で行った.最小2乗法とは林(1994)の「歪解析法3」のことであり,平均法とは同じく「歪解析法2」のことである.両者の結果はかなりくい違った.これを解明するため歪楕円体の適合性をあらわすc値を導入した.最小2乗法によって得られた歪楕円体はc値が小さくなると歪楕円との差が小さくなった.しかし平均法の場合にはかならずしも小さくならない.このため,最小2乗法から得られた歪楕円体はc値が小さくなると真の歪楕円体に近づくことが期待されるが,平均法の場合には期待できない.
Type Local :雑誌掲載論文
ISSN :0388-502X
Publisher :日本情報地質学会
URI :http://hdl.handle.net/20.500.12000/2947
Citation :情報地質 = Geological data processing (Geoinformatics) Vol.6 no.1 p.13 -29
Appears in Collections:Peer-reviewed Journal Articles (Faculty of Science)

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