Morphotectonic evidence from lateral propagation of an active frontal fold; Pakuashan anticline, foothills of Taiwan

Auteurs :
DELCAILLAU, B.
DEFFONTAINES, B.
FLOISSAC, L.
ANGELIER, J.
DERAMOND, J.
SOUQUET, P.
CHU, H.T.
LEE, J.F.

Description :
This paper demonstrates that a combined study, based on geomorphological, stratigraphical and tectonic analysis, allows precise understanding of the structure and evolution of an active fold. The aims of the study are to document : 1) the structures that accommodate lateral propagation on an active fold; 2) the orientation of the principal stress-axis inferred from fault population analysis in the pretectonic Toukoshan Formation and syntectonic deposits; and 3) the tectonic geomorphology of the Pakuashan anticline. The 2 main controls on drainage in that area are rock strength in the hanging wall and propagation of the deformation towards the south.


Type de document :
Article de périodique

Source :
Geomorphology (Amsterdam), issn : 0169-555X, 1998, vol. 24, n°. 4, p. 263-290, Collation : Illustration, Références bibliographiques : 50 ref.

Date :
1998

Editeur :
Pays édition : Pays-Bas, Amsterdam, Elsevier