xtyangpsp/YangAndGao_AlaskaFWANT: Updated for JGR rev2
This repository contains the codes and model file for Yang & Gao (2020): https://doi.org/10.1029/2020JB019677 Article abstract: The along‐strike variations of the velocity, thickness, and dip of subducting slabs and the volcano distribution have been observed globally. It is, however, unclear wh...
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Online Access: | https://dx.doi.org/10.5281/zenodo.4042035 https://zenodo.org/record/4042035 |
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ftdatacite:10.5281/zenodo.4042035 2023-05-15T18:44:38+02:00 xtyangpsp/YangAndGao_AlaskaFWANT: Updated for JGR rev2 Xiaotao Yang 2020 https://dx.doi.org/10.5281/zenodo.4042035 https://zenodo.org/record/4042035 unknown Zenodo https://github.com/xtyangpsp/YangAndGao_AlaskaFWANT/tree/v1.2.0 https://github.com/xtyangpsp/YangAndGao_AlaskaFWANT/tree/v1.2.0 https://dx.doi.org/10.5281/zenodo.3691908 Open Access info:eu-repo/semantics/openAccess Software SoftwareSourceCode article 2020 ftdatacite https://doi.org/10.5281/zenodo.4042035 https://doi.org/10.5281/zenodo.3691908 2021-11-05T12:55:41Z This repository contains the codes and model file for Yang & Gao (2020): https://doi.org/10.1029/2020JB019677 Article abstract: The along‐strike variations of the velocity, thickness, and dip of subducting slabs and the volcano distribution have been observed globally. It is, however, unclear what controls the distribution of volcanoes and the associated magma generation. With the presence of nonuniform volcanism, the Aleutian‐Alaska subduction zone (AASZ) is an ideal place to investigate subduction segmentation and its relationship with volcanism. Using full‐wave ambient noise tomography, we present a high‐resolution 3‐D shear wave velocity model of the AASZ for the depths of 15–110 km. The velocity model reveals the distinct high‐velocity Pacific slab, the thicker, flatter, and more heterogeneous Yakutat slab, and the northeasterly dipping Wrangell slab. We observe low velocities within the uppermost mantle (at depth <60 km) below the Aleutian arc volcanoes, representing partial melt accumulation. The large crustal low‐velocity anomaly beneath the Wrangell volcanic field suggests a large magma reservoir, likely responsible for the clustering of volcanoes. The Denali volcanic gap is above an average‐velocity crust but an extremely fast mantle wedge, suggesting the lack of subsurface melt. This is in contrast with the lower‐velocity back‐arc mantle beneath the adjacent Buzzard Creek‐Jumbo Dome volcanoes to the east. The back‐arc low velocities associated with the Pacific, the eastern Yakutat, and the Wrangell slabs may reflect subduction‐driven mantle upwelling. The structural variation of the downgoing slabs and the overriding plate explains the change of volcanic activity along the AASZ. Our findings demonstrate the combined role of the subducting slab and the overriding plate in controlling the characteristics of arc magmatism. Article in Journal/Newspaper Yakutat Alaska DataCite Metadata Store (German National Library of Science and Technology) Pacific |
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DataCite Metadata Store (German National Library of Science and Technology) |
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ftdatacite |
language |
unknown |
description |
This repository contains the codes and model file for Yang & Gao (2020): https://doi.org/10.1029/2020JB019677 Article abstract: The along‐strike variations of the velocity, thickness, and dip of subducting slabs and the volcano distribution have been observed globally. It is, however, unclear what controls the distribution of volcanoes and the associated magma generation. With the presence of nonuniform volcanism, the Aleutian‐Alaska subduction zone (AASZ) is an ideal place to investigate subduction segmentation and its relationship with volcanism. Using full‐wave ambient noise tomography, we present a high‐resolution 3‐D shear wave velocity model of the AASZ for the depths of 15–110 km. The velocity model reveals the distinct high‐velocity Pacific slab, the thicker, flatter, and more heterogeneous Yakutat slab, and the northeasterly dipping Wrangell slab. We observe low velocities within the uppermost mantle (at depth <60 km) below the Aleutian arc volcanoes, representing partial melt accumulation. The large crustal low‐velocity anomaly beneath the Wrangell volcanic field suggests a large magma reservoir, likely responsible for the clustering of volcanoes. The Denali volcanic gap is above an average‐velocity crust but an extremely fast mantle wedge, suggesting the lack of subsurface melt. This is in contrast with the lower‐velocity back‐arc mantle beneath the adjacent Buzzard Creek‐Jumbo Dome volcanoes to the east. The back‐arc low velocities associated with the Pacific, the eastern Yakutat, and the Wrangell slabs may reflect subduction‐driven mantle upwelling. The structural variation of the downgoing slabs and the overriding plate explains the change of volcanic activity along the AASZ. Our findings demonstrate the combined role of the subducting slab and the overriding plate in controlling the characteristics of arc magmatism. |
format |
Article in Journal/Newspaper |
author |
Xiaotao Yang |
spellingShingle |
Xiaotao Yang xtyangpsp/YangAndGao_AlaskaFWANT: Updated for JGR rev2 |
author_facet |
Xiaotao Yang |
author_sort |
Xiaotao Yang |
title |
xtyangpsp/YangAndGao_AlaskaFWANT: Updated for JGR rev2 |
title_short |
xtyangpsp/YangAndGao_AlaskaFWANT: Updated for JGR rev2 |
title_full |
xtyangpsp/YangAndGao_AlaskaFWANT: Updated for JGR rev2 |
title_fullStr |
xtyangpsp/YangAndGao_AlaskaFWANT: Updated for JGR rev2 |
title_full_unstemmed |
xtyangpsp/YangAndGao_AlaskaFWANT: Updated for JGR rev2 |
title_sort |
xtyangpsp/yangandgao_alaskafwant: updated for jgr rev2 |
publisher |
Zenodo |
publishDate |
2020 |
url |
https://dx.doi.org/10.5281/zenodo.4042035 https://zenodo.org/record/4042035 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Yakutat Alaska |
genre_facet |
Yakutat Alaska |
op_relation |
https://github.com/xtyangpsp/YangAndGao_AlaskaFWANT/tree/v1.2.0 https://github.com/xtyangpsp/YangAndGao_AlaskaFWANT/tree/v1.2.0 https://dx.doi.org/10.5281/zenodo.3691908 |
op_rights |
Open Access info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5281/zenodo.4042035 https://doi.org/10.5281/zenodo.3691908 |
_version_ |
1766235433676570624 |