Structure of the upper mantle in the north-western and central United States from USArray S-receiver functions

Kind, R.; Yuan, X.; Mechie, J.; Sodoudi, F.

doi:https://doi.org/10.5194/se-6-957-2015

Articles | Volume 6, issue 3

https://doi.org/10.5194/se-6-957-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

The Lithosphere-Asthenosphere Boundary (LAB) Dilemma

https://doi.org/10.5194/se-6-957-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 6, issue 3

Research article

|

31 Jul 2015

Research article |

| 31 Jul 2015

Structure of the upper mantle in the north-western and central United States from USArray S-receiver functions

R. Kind, X. Yuan, J. Mechie, and F. Sodoudi

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Final revised paper (published on 31 Jul 2015)
Preprint (discussion started on 06 Mar 2015)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC C563: 'Review of Kind et al. "Structure of the upper mantle in the north-western and central United States..."', Barbara Romanowicz, 30 Apr 2015
- AC C811: 'response to the reviewers', Rainer Kind, 19 Jun 2015
RC C708: 'Review comments', Anonymous Referee #2, 27 May 2015
- AC C812: 'Response to the reviewers', Rainer Kind, 19 Jun 2015

Short summary

We observed with seismic data the lithosphere–asthenosphere boundary (LAB) in the western United States and the mid-lithospheric discontinuity (MLD) in the central United States. In the northern and southern United States, the western LAB (probably of the Farallon plate) is weakly east dipping. There are indications of a west-dipping MLD in between. We interpret this interfingering structure of the mantle lithosphere as a result of the collision of the Farallon and the Laurentia plates.