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ID 117701
Title Alternative
Basic concept of balanced cross section and duplex structures of the Shimanto Terrane, Kyushu, Japan
Author
Keywords
balanced cross section
thrust
duplex
fault-bend fold
normal fault
Shimanto Terrane
Kyushu
Content Type
Journal Article
Description
Petroleum exploration requires an exact cross section. Balanced cross section construction (Dahlstrom, 1969) is a very useful way to extrapolate surface structures to the depths. The basic concept of his method is that the geometric features of any constructed section must be retrodeformable to the restored section. Bed lengths and areas must be equal both in deformed cross section and undeformed restored section.
Balanced cross section construction has been very successful in understanding complex structures of the fold and thrust belts of the orogenic belts, especially for duplex structures. But an application of the method to the accretionary terranes is very difficult, because original successions are not clarified. However in such a case, the concept of balanced cross section is essential to understand thrust structures. Some examples of the duplex structures of the Shimanto Terrane in Kyushu, Japan are described.
Journal Title
Journal of the Japanese Association for Petroleum Technology
ISSN
03709868
18814131
NCID
AN00130976
Publisher
石油技術協会
Volume
65
Issue
1
Start Page
16
End Page
27
Published Date
2000-01
EDB ID
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
jpn
TextVersion
Publisher
departments
Science and Technology