The spatial distribution characteristics of Nb–Ta of mafic rocks in subduction zones
Abstract: High field-strength elements have been regarded as one of the most important discriminations in subduction zone magma. However, the spatial distribution of Nb and Ta in subduction zone-related rocks has been rarely studied; it is still unclear whether there is a quantitative relationship between the Nb–Ta concentrations and their subduction distance. In this paper, the Nb–Ta concentrations of mafic rocks in arc tectonic systems were calculated from a statistical perspective based on the combined geophysical model and geochemical database. The results showed a typical spatial distribution pattern. The threshold value of Nb (12.20 ppm) and Ta (0.796 ppm) in arc settings was estimated by a cumulative distribution function, which can be used to determine whether the rock is generated in arc tectonic environment. A probability density function of Nb–Ta contents and related subduction distance has been obtained using kernel function estimation. The Nb–Ta concentrations are exponentially correlated with the subduction distance (<700 km), while the Nb/Ta ratios keep in the range of 12–19. We proposed that the subduction depth, along with the degree of partial melting, and possible crustal contamination might be responsible for the Nb–Ta variation correlation with subduction distances.
- Location
-
Deutsche Nationalbibliothek Frankfurt am Main
- Extent
-
Online-Ressource
- Language
-
Englisch
- Bibliographic citation
-
The spatial distribution characteristics of Nb–Ta of mafic rocks in subduction zones ; volume:13 ; number:1 ; year:2021 ; pages:390-400 ; extent:11
Open Geosciences ; 13, Heft 1 (2021), 390-400 (gesamt 11)
- Creator
-
Li, Weiwei
Ge, Can
Wang, Fangyue
Sun, He
Gu, Haiou
- DOI
-
10.1515/geo-2020-0242
- URN
-
urn:nbn:de:101:1-2501051629063.617498454009
- Rights
-
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
- 15.08.2025, 7:26 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Li, Weiwei
- Ge, Can
- Wang, Fangyue
- Sun, He
- Gu, Haiou
Other Objects (12)
Extraction of periodic signals in GNSS vertical coordinate time series using adaptive Ensemble Empirical Modal Decomposition method
Genomic islands mediate environmental adaptation and the spread of antibiotic resistance in multiresistant Enterococci - evidence from genomic sequences
Influence of geometry and wettability on two-phase flow in porous media
Reprogrammable 3D Liquid‐Crystalline Actuators with Precisely Controllable Stepwise Actuation
A new version of Carleson measure associated with Hermite operator
Tailoring physical functionalities of complex oxides by vertically aligned nanocomposite thin-film design
A pilot study of digital recording of edentulous jaw relations using a handheld scanner and specially designed headgear
Catalytic coal gasification: mechanism, kinetics, and reactor model
Magnetic carboxyl functional nanoporous polymer: synthesis, characterization and its application for methylene blue adsorption
Real‐Time Imaging of Ammonia Release from Single Live Cells via Liquid Crystal Droplets Immobilized on the Cell Membrane
Subduction zones, Pt. 2
Subduction zones, Pt. 1
Extraction of periodic signals in GNSS vertical coordinate time series using adaptive Ensemble Empirical Modal Decomposition method
Genomic islands mediate environmental adaptation and the spread of antibiotic resistance in multiresistant Enterococci - evidence from genomic sequences
Influence of geometry and wettability on two-phase flow in porous media
Reprogrammable 3D Liquid‐Crystalline Actuators with Precisely Controllable Stepwise Actuation
A new version of Carleson measure associated with Hermite operator
Tailoring physical functionalities of complex oxides by vertically aligned nanocomposite thin-film design
A pilot study of digital recording of edentulous jaw relations using a handheld scanner and specially designed headgear
Catalytic coal gasification: mechanism, kinetics, and reactor model
Magnetic carboxyl functional nanoporous polymer: synthesis, characterization and its application for methylene blue adsorption
Real‐Time Imaging of Ammonia Release from Single Live Cells via Liquid Crystal Droplets Immobilized on the Cell Membrane
Subduction zones, Pt. 2
Subduction zones, Pt. 1
Extraction of periodic signals in GNSS vertical coordinate time series using adaptive Ensemble Empirical Modal Decomposition method
Genomic islands mediate environmental adaptation and the spread of antibiotic resistance in multiresistant Enterococci - evidence from genomic sequences
Influence of geometry and wettability on two-phase flow in porous media
Reprogrammable 3D Liquid‐Crystalline Actuators with Precisely Controllable Stepwise Actuation
A new version of Carleson measure associated with Hermite operator
Tailoring physical functionalities of complex oxides by vertically aligned nanocomposite thin-film design
A pilot study of digital recording of edentulous jaw relations using a handheld scanner and specially designed headgear
Catalytic coal gasification: mechanism, kinetics, and reactor model
Magnetic carboxyl functional nanoporous polymer: synthesis, characterization and its application for methylene blue adsorption
Real‐Time Imaging of Ammonia Release from Single Live Cells via Liquid Crystal Droplets Immobilized on the Cell Membrane
Subduction zones, Pt. 2