000151236 001__ 151236
000151236 005__ 20251017144653.0
000151236 0247_ $$2doi$$a10.1029/2024GL112604
000151236 0248_ $$2sideral$$a143002
000151236 037__ $$aART-2025-143002
000151236 041__ $$aeng
000151236 100__ $$aGuo, Gaoshan
000151236 245__ $$aLithospheric thinning of the northeastern Arabian margin revealed by matrix-free teleseismic traveltime tomography
000151236 260__ $$c2025
000151236 5060_ $$aAccess copy available to the general public$$fUnrestricted
000151236 5203_ $$aThe obduction of the Tethys oceanic lithosphere is documented by the Semail ophiolite along the northeastern Arabian continental margin. Although the ophiolite is continuous and of similar age across the region, the eastern and western segments display distinct geological contrasts. To investigate the deep structural mechanisms underlying these surface variations, we applied teleseismic traveltime tomography using an advanced eikonal solver and a matrix‐free adjoint‐state approach on data from a dense seismic array. Our 3D upper mantle P‐wave model reveals a significant velocity contrast, with positive anomalies in the west and negative anomalies in the east, separated by a prominent fault zone. We propose that the continental lithosphere beneath northeastern Arabia underwent thinning during the Permian breakup of Pangaea. This pre‐obduction lithospheric segmentation likely influenced the subduction dynamics associated with the ophiolite obduction process. Additionally, early Cenozoic thermal activity may have further amplified lithospheric thinning, contributing to the observed structural variations.
000151236 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
000151236 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000151236 700__ $$aLan, Haiqiang
000151236 700__ $$aChen, Ling
000151236 700__ $$aMeng, Lingkai
000151236 700__ $$0(orcid)0000-0002-3424-7744$$aBadal, José$$uUniversidad de Zaragoza
000151236 7102_ $$12004$$2405$$aUniversidad de Zaragoza$$bDpto. Física Teórica$$cÁrea Física Teórica
000151236 773__ $$g52, 3 (2025), e2024GL112604 [12 pp.]$$pGeophys. res. lett.$$tGeophysical Research Letters$$x0094-8276
000151236 787__ $$tWDC for Geophysics in Beijing$$tGeophysical Research Letters$$w10.12197/2024GA020$$w10.1029/2024GL112604GUO
000151236 8564_ $$s5460555$$uhttps://zaguan.unizar.es/record/151236/files/texto_completo.pdf$$yVersión publicada
000151236 8564_ $$s3268399$$uhttps://zaguan.unizar.es/record/151236/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000151236 909CO $$ooai:zaguan.unizar.es:151236$$particulos$$pdriver
000151236 951__ $$a2025-10-17-14:37:17
000151236 980__ $$aARTICLE