Which parameters control kinematics and mass transfer within subduction ?

Lohrmann, J.; Kukowski, N.; Krawczyk, C. M.; Oncken, Onno

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Conference Paper

Which parameters control kinematics and mass transfer within subduction ?

Authors

Lohrmann, J.
External Organizations;

Kukowski, N.
External Organizations;

Krawczyk, C. M.
External Organizations;

/persons/resource/oncken

Oncken, Onno
3.1 Lithosphere Dynamics, 3.0 Geodynamics and Geomaterials, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

External Ressource

No external resources are shared

Fulltext (public)

There are no public fulltexts stored in GFZpublic

Supplementary Material (public)

There is no public supplementary material available

Citation

Lohrmann, J., Kukowski, N., Krawczyk, C. M., Oncken, O. (2004): Which parameters control kinematics and mass transfer within subduction?, (Abstract Volume), GeoMod 2004 (Emmetten, Switzerland 2004).

https://gfzpublic.gfz-potsdam.de/pubman/item/item_230938

Abstract

Two series of scaled sandbox experiments were carried out to simulate accretive forearcs with different modes of mass transfer. By analysing the incremental displacement-gradient field, we define criteria to determine subduction channel geometries. The results show that each accretion mode exhibits an unique pattern of material flow-rate within the subduction channel. Among the controlling parameters, the gradient of mechanical material properties at the top of the subduction channel and the amount of rearward material loss are of predominant importance. The vertical load and the activity of faults in the overlying wedge exert only minor control on the mass-transfer mode. However, it is very difficult to unequivocally identify the set of parameters that controls the mass budget of a specific forearc in nature, as demonstrated by the South-Chilean Forearc.