CONTINENTAL TRANSFORM FAULTS, KEY ELEMENTS FOR BREAK-UP, MAGMATISM AND MARGIN ARCHITECTURE

2019 ◽  
Author(s):  
Erik Lundin ◽  
◽  
Anthony Doré ◽  
Jolante van Wijk ◽  
Michael Berry ◽  
...  
Keyword(s):  
Transform Faults ◽  
Break Up

Utilization of continental transforms in break-up: observations, models, and a potential link to magmatism

2021 ◽  
pp. SP524-2021-119
Author(s):  
E. R. Lundin ◽  
A. G. Doré ◽  
J. Naliboff ◽  
J. Van Wijk
Keyword(s):  
Stress Field ◽  
Numerical Modelling ◽  
Thermal Gradients ◽  
Transform Faults ◽  
Content Type ◽  
Lithospheric Thinning ◽  
Potential Link ◽  
Supplementary Material ◽  
Break Up ◽  
Lower Crustal

AbstractReactivation of continental transform faults (hereafter; transforms) is identified herein as a significant factor in continental break-up, based on a global review of divergent margins and numerical modelling. Divergent margins that have reactivated transforms are characterized by linear and abrupt terminations of thick continental crust. Transforms represent some of the largest structures on Earth, and these megastructures represent major lithospheric weaknesses and are therefore prone to reactivation upon changes in the stress field, which typically occur during plate break-up. The blunt termination of the margins is consistent with observations of very limited pre-breakup lithospheric thinning of such margins. This mode of break-up appears to occur abruptly, and contrasts notably with highly tapered and slowly extended divergent margins. Magma leakage along transforms is well-known worldwide where divergence occurs across such features. This leakage may evolve to dike injections, further reducing the plate strength. We observe that many of the blunt margins we attribute to transform reactivation have been prone to above-normal magmatism and are marked by seaward dipping reflectors underlain by high-velocity lower crustal intrusions. The magmatism may be directly related to the separation of abruptly terminated margins, whereby the large resulting lateral thermal gradients trigger edge-driven convection and melt addition.Supplementary material at https://doi.org/10.6084/m9.figshare.c.5756724

The calamity of family break-up

Nature ◽  
1998 ◽  
Author(s):  
Henry Gee
Keyword(s):  
Break Up

Why No Break-Up – So Far?

2007 ◽  
Vol 60 (First Serie (1) ◽  
pp. 94-114
Author(s):  
Bob Tait
Keyword(s):  
Break Up

Spray Break-Up Process of Diesel Fuel Investigated Close to the Nozzle

1997 ◽  
Vol 24 (1-3) ◽  
pp. 251-260 ◽  
Author(s):  
A. Fath ◽  
K.-U. Munch ◽  
Alfred Leipertz
Keyword(s):  
Diesel Fuel ◽  
Break Up
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