Imperial College London
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Emeritus ProfessorLidiaLonergan

Faculty of Engineering, Department of Earth Science & Engineering

Emeritus Reader of Geotectonics
 
 
 
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Contact

 

+44 (0)20 7594 6465l.lonergan Website

 
 
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Location

 

3.48Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Martinez-Garcia:2018:10.1002/2017TC004489,
author = {Martinez-Garcia, P and Comas, M and Lonergan, L and Watts, AB},
doi = {10.1002/2017TC004489},
journal = {Tectonics},
pages = {2777--2805},
title = {From extension to shortening: tectonic inversion distributed in time and space in the Alboran Sea, Western Mediterranean},
url = {http://dx.doi.org/10.1002/2017TC004489},
volume = {36},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - 2D seismic reflection data tied to biostratigraphical and log information from wells in the central and southeastern Alboran Sea have allowed us to constrain the spatial and temporal distribution of rifting and inversion. Normal faults, tilted basement blocks, and growth wedges reveal a thinned continental crust that formed in response to NWSE extension. To the east, a secondary SWNE trend of extension affects the transitional crust adjacent to the oceanic Algerian Basin. The maximum thickness of synrift sediments is ~3.5 km, and the oldest recorded deposits are Serravallian. The WNWESE Yusuf fault formed a buttress separating and accommodating variable extension between two different tectonic domains: the thinned continental crust of Alboran and the oceanic spreading of the Algerian Basin. Late Tortonian to presentday NWSE Africa/Eurasia plate convergence drove shortening and reactivation of some of the earlier extensional structures as reverse and strikeslip faults, forming complex, compartmentalised subbasins. Tectonic inversion coexisted with the formation of new faults and folds. Inversion was partial along the Habibas Basin and AlIdrisi fault, but complete along the Alboran Ridge, where some SWNE trending faults were perpendicular to the recent NWSE plate convergence and were reactivated as thrusts. The WNWESE Yusuf fault is oblique to the convergence vector, and therefore, reactivation is mainly expressed as transpressional deformation. Volcanic rocks intruded along the Alboran Ridge and Yusuf faults during the latest stages of extension formed rheological anisotropies that localised the later inversion.
AU  - Martinez-Garcia,P
AU  - Comas,M
AU  - Lonergan,L
AU  - Watts,AB
DO  - 10.1002/2017TC004489
EP  - 2805
PY  - 2018///
SN  - 0278-7407
SP  - 2777
TI  - From extension to shortening: tectonic inversion distributed in time and space in the Alboran Sea, Western Mediterranean
T2  - Tectonics
UR  - http://dx.doi.org/10.1002/2017TC004489
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000423417300002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/64275
VL  - 36
ER  -
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