scholarly journals Competition between 3D structural inheritance and kinematics during rifting: insights from analogue models

2021 ◽  
Author(s):  
Frank Zwaan ◽  
Pauline Chenin ◽  
Duncan Erratt ◽  
Gianreto Manatschal ◽  
Guido Scheurs
Keyword(s):  
Structural Inheritance ◽  
Analogue Models

scholarly journals The role of structural inheritance in oblique rifting: Insights from analogue models and application to the Gulf of Aden

2013 ◽  
Vol 607 ◽  
pp. 51-64 ◽  
Author(s):  
Julia Autin ◽  
Nicolas Bellahsen ◽  
Sylvie Leroy ◽  
Laurent Husson ◽  
Marie-Odile Beslier ◽  
...  
Keyword(s):  
Gulf Of Aden ◽  
Structural Inheritance ◽  
Analogue Models ◽  
Oblique Rifting

scholarly journals Competition between 3D structural inheritance and kinematics during rifting: insights from analogue models

2021 ◽  
Author(s):  
Frank Zwaan ◽  
Pauline Chenin ◽  
Duncan Erratt ◽  
Gianreto Manatschal ◽  
Guido Schreurs
Keyword(s):  
Experimental Studies ◽  
Surface Expression ◽  
Crustal Layer ◽  
Structural Inheritance ◽  
Analogue Models ◽  
Localize Deformation ◽  
Internal And External Factors ◽  
Lower Crustal ◽  
The Impact ◽  
Plate Kinematics

The competition between the impact of inherited weaknesses and plate kinematics determines the location and style of deformation during rifting, yet the relative impacts of these “internal” and “external” factors remain poorly understood, especially in 3D. In this study we used brittle-viscous analogue models to assess how multiphase rifting, i.e., changes in plate divergence rate or direction, and the distribution of weaknesses in the competent mantle and crust influence rift evolution. We find that the combined reactivation of mantle and crustal weaknesses without kinematic changes creates complex rift structures. Divergence rates affects the strength of the weak lower crustal layer and hence the degree of mantle-crustal coupling. In this context slow rifting decreases coupling, so that crustal weaknesses can easily localize deformation and dominate surface structures, whereas fast rifting increases coupling so that deformation related to mantle weaknesses can have a dominant surface expression. Through a change from slow to fast rifting mantle-related deformation can overprint previous structures that formed along (differently oriented) crustal weaknesses. Conversely, a change from fast to slow rifting may shift deformation from mantle-controlled towards crust-controlled. When changing divergence directions, structures from the first rifting phase may control where subsequent deformation occurs, but only when they are well developed. Alternatively, they are ignored during subsequent rifting. We furthermore place our results in a larger framework of brittle-viscous rift modelling results from previous experimental studies, showing the importance of genral lithospheric layering, divergence rate, the type of deformation in the mantle, and finally upper crustal structural inheritance. The interaction between these parameters can lead to a large variety of deformation styles that may often lead to comparable end products. Therefore, detailed investigation of faulting and to an equal extent basin depocenter distribution over time is required to properly determine the evolution of complex rift systems. These insights provide a strong incentive to revisit various natural examples.

Indenter growth in analogue models of Alpine-type deformation

Tectonics ◽  
1999 ◽  
Vol 18 (1) ◽  
pp. 119-128 ◽  
Author(s):  
Marco Bonini
Keyword(s):  
Analogue Models

FEEDBACK BETWEEN STRUCTURAL INHERITANCE, MAGMA-PLUMBING AND FAULTING IN A MULTIPHASE RIFT: THE SHIRE GRABEN, EAST AFRICAN RIFT

2019 ◽  
Author(s):  
Travis J. Vick ◽  
◽  
Folarin Kolawole ◽  
Estella A. Atekwana ◽  
Daniel Lao-Davila ◽  
...  
Keyword(s):  
East African Rift ◽  
East African ◽  
Structural Inheritance ◽  
African Rift ◽  
Magma Plumbing

Normal fault reactivation during multiphase extension: Analogue models and application to the Turkana depression, East Africa

2021 ◽  
pp. 228870
Author(s):  
Liang Wang ◽  
Daniele Maestrelli ◽  
Giacomo Corti ◽  
Yaoyao Zou ◽  
Chuanbo Shen
Keyword(s):  
East Africa ◽  
Normal Fault ◽  
Fault Reactivation ◽  
Analogue Models

Tectonic inversion and structural inheritance in mountain belts

2006 ◽  
Vol 28 (11) ◽  
pp. 1891-1892 ◽  
Author(s):  
Rob Butler ◽  
Enrico Tavarnelli ◽  
Mario Grasso
Keyword(s):  
Structural Inheritance ◽  
Tectonic Inversion ◽  
Mountain Belts

Passive-roof thrusting in the Messinian Vena del Gesso Basin (Northern Apennines, Italy): constraints from field data and analogue models

2007 ◽  
Vol 42 (5) ◽  
pp. 455-476 ◽  
Author(s):  
Domenico Montanari ◽  
Chiara Del Ventisette ◽  
Marco Bonini ◽  
Federico Sani
Keyword(s):  
Field Data ◽  
Northern Apennines ◽  
Analogue Models

Insights into the velocity-dependent geometry and internal strain in accretionary wedges from analogue models

2017 ◽  
Vol 155 (5) ◽  
pp. 1089-1104 ◽  
Author(s):  
BIN DENG ◽  
LEI JIANG ◽  
GAOPING ZHAO ◽  
RUI HUANG ◽  
YUANBO WANG ◽  
...  
Keyword(s):  
Brittle Material ◽  
High Velocity ◽  
Frontal Zone ◽  
Volumetric Strain ◽  
Velocity Dependence ◽  
Shortening Velocity ◽  
Asymmetric Structures ◽  
Analogue Models ◽  
Velocity Of Shortening ◽  
Geometry And Kinematics

AbstractAlthough the brittle material in analogue models is characterized by a linear Navier-Coulomb behaviour and rate-independent deformation, the geometry and style of deformation in accretionary wedges is sensitive to shortening velocity. In this study we have constructed a series of analogue models with various shortening velocities in order to study the influence of shortening velocity on the geometry and kinematics of accretionary wedges. Model results illustrate how shortening velocity has an important influence on the geometry and kinematics of the resulting wedge. In general, for models having similar bulk shortening, the accretionary wedges with higher velocities of shortening are roughly steeper, higher and longer, as well as having larger critical wedge angles and height. It accommodates a number of foreland-vergent thrusts, larger fault spacing and displacement rates than those of low- to medium-velocity shortening, which indicates a weak velocity-dependence in geometry of the wedge. Moreover, models with a high velocity of shortening undergo larger amounts of volumetric strain and total layer-parallel shortening than models with low- to medium-velocity shortening. The former accommodate a greater development of back thrusts and asymmetric structures; a backwards-to-forwards style of wedge growth therefore occurs in the frontal zone under high-velocity shortening.

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