Journal articles
Large-scale flexuring and antithetic extensional faulting along a nascent plate boundary in the SE Afar rift
Abstract : New structural data from the SE Afar margin in Djibouti lead us to discriminate two recent (<1 Ma) extensional fault networks between the Afar accreted crust, and the South Danakil block to the east. Emphasis is placed on the N-S-oriented Makarassou fault system which dissects the prominent westward-(riftward-)facing topographic flexure between the two structural domains. The most striking characteristic of the Makarassou fault belt is a closely spaced network of continentward-dipping extensional faults, bounding domino blocks of 3-1 Ma tilted lavas of the Stratoid series. The Makarassou fault-flexure system is interpreted as an extensional faulted monocline that developed in response to differential subsidence and crustal downwarping of the Afar magmatically accreted transitional crust. Large-scale flexuring and associated structures along the eastern flank of the Asal-Manda-Inakir incipient plate boundary are regarded as indicative of a nascent volcanic rifted margin in SE Afar.
Cited literature [3 references]
https://hal-insu.archives-ouvertes.fr/insu-00635012
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Submitted on : Wednesday, October 26, 2011 - 10:13:54 AM
Last modification on : Monday, January 3, 2022 - 4:36:02 PM
Long-term archiving on: : Friday, January 27, 2012 - 2:23:22 AM
Contributor : Adminhal Univbrestbu Connect in order to contact the contributor
Submitted on : Wednesday, October 26, 2011 - 10:13:54 AM
Last modification on : Monday, January 3, 2022 - 4:36:02 PM
Long-term archiving on: : Friday, January 27, 2012 - 2:23:22 AM
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TER-2011-0057-1.pdf
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