dorsal/arxiv
View SchemaAnalytic tomography of the mantle in a spherically Earth. The technique MZY
| Authors | Yoel Lana-Renault |
|---|---|
| Categories | |
| ArXiv ID | physics/0103043 |
| URL | https://arxiv.org/abs/physics/0103043 |
| Journal | Acad. Ciencias Zaragoza, 55 (2000) 111-128 |
Abstract
An explicit expression for P-wave velocity is proposed to develop a novel tomographic technique in a spherically symmetric model of the Earth (MZY). The distribution of the P velocity structure in the mantle is determined using only 34 P- and 2 PcP-observed traveltimes. By applying a non-linear inversion, the P-residuals in the range between 0 and 100 degrees are minimised up to a maximum value of 0.015 s. Furthermore, from the high quality computation of PcP traveltimes, with residuals much better than 0.13 s, it is possible to infer the existence of a brief low velocity layer in the D" region. This is then followed by a gradual increasing in the velocity profile towards the core, which begins at a depth of 2893.9 km.
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"abstract": "An explicit expression for P-wave velocity is proposed to develop a novel\ntomographic technique in a spherically symmetric model of the Earth (MZY). The\ndistribution of the P velocity structure in the mantle is determined using only\n34 P- and 2 PcP-observed traveltimes. By applying a non-linear inversion, the\nP-residuals in the range between 0 and 100 degrees are minimised up to a\nmaximum value of 0.015 s. Furthermore, from the high quality computation of PcP\ntraveltimes, with residuals much better than 0.13 s, it is possible to infer\nthe existence of a brief low velocity layer in the D\" region. This is then\nfollowed by a gradual increasing in the velocity profile towards the core,\nwhich begins at a depth of 2893.9 km.",
"arxiv_id": "physics/0103043",
"authors": [
"Yoel Lana-Renault"
],
"categories": [
"physics.geo-ph"
],
"journal_ref": "Acad. Ciencias Zaragoza, 55 (2000) 111-128",
"title": "Analytic tomography of the mantle in a spherically Earth. The technique MZY",
"url": "https://arxiv.org/abs/physics/0103043"
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