Clayton, Robert W. (2020) A detailed image of the continent-borderland transition beneath Long Beach, California. Geophysical Journal International, 222 (3). pp. 2102-2107. ISSN 0956-540X. doi:10.1093/gji/ggaa286. https://resolver.caltech.edu/CaltechAUTHORS:20200717-155018558
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Abstract
New crustal images beneath Long Beach, California show the region of the Inner Borderland to continent transition. The cross-sections are obtained from stacked autocorrelations of virtual sources generated from oil-industry data recorded in the city of Long Beach, CA. They show that the Moho is dipping at 65° and obliquely truncates an ∼10 km thick flat-lying lower crustal fabric. The Moho appears to be fault controlled and an integral part of the extrusion of the Catalina Schist that underlays the Inner Borderland. The basement interface has significant offsets of up to 2 km, none of which correspond to the mapped trace of the Newport–Inglewood Fault.
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| Additional Information: | © The Author(s) 2020. Published by Oxford University Press on behalf of The Royal Astronomical Society. This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model). Accepted 2020 June 8. Received 2020 June 8; in original form 2020 March 6. Published: 12 June 2020. The work was support under the NSF award EAR-1520081 and a THOR (Caltech internal research fund) award. We thank Signal Hill Petroleum for permission to use the Long Beach array data and Dan Hollis and Nodal Seismic for facilitating the interaction. This study benefitted from discussions with Mark Legg and Jason Saleeby. We also thank John Shaw and an anonymous reviewer for constructive comments that improved this paper. Data used in this study is the property of Signal Hill Petroleum and a ‘non-distribution’ agreement with them is required from them to use data. | ||||||
| Group: | Seismological Laboratory | ||||||
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| Subject Keywords: | Crustal imaging; Seismic interferometry; Seismic noise | ||||||
| Issue or Number: | 3 | ||||||
| DOI: | 10.1093/gji/ggaa286 | ||||||
| Record Number: | CaltechAUTHORS:20200717-155018558 | ||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20200717-155018558 | ||||||
| Official Citation: | Robert W Clayton, A detailed image of the continent-borderland transition beneath Long Beach, California, Geophysical Journal International, Volume 222, Issue 3, September 2020, Pages 2102–2107, https://doi.org/10.1093/gji/ggaa286 | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 104433 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | Tony Diaz | ||||||
| Deposited On: | 17 Jul 2020 23:22 | ||||||
| Last Modified: | 16 Nov 2021 18:31 |
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