Moho Complexity in Southern California Revealed by Local PmP and Teleseismic Ps Waves

نویسندگان

چکیده

The Moho discontinuity plays an important role in crustal growth and evolution. In this study, we delineate the geometry southern California by jointly using local Moho-reflected waves PmP teleseismic Moho-converted Ps. To well constrain geometry, have developed a two-stage process to pick created reliable travel time data set with total of 10,192 picks. We also extracted 38,648 high-quality P-wave receiver functions (RFs). depth is initially estimated via common conversion point (CCP) stacking RFs then refined inverting community velocity model (CVM-H, version 15.1.1). newly built generally consistent Model 1.0 (CMM-1.0), that is, shallow beneath Salton Trough (23 km), uniformly Mojave Desert Basin Range (<29 sliver deep under western Peninsular Ranges, eastern Transverse Sierra Nevada (>34 km). However, our reveals some new features different from CMM–1.0, such as (∼34 km) northern end central observation seismicities due thick brittle crust there. find gradual transition lower uppermost mantle leading rareness pickable weak signals

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ژورنال

عنوان ژورنال: Journal Of Geophysical Research: Solid Earth

سال: 2022

ISSN: ['2169-9356', '2169-9313']

DOI: https://doi.org/10.1029/2021jb023033