A metasomatized lithospheric mantle control on the metallogenic signature of post-subduction magmatism

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autorinnen und Autoren: Holwell DA, Fiorentini M, McDonald I, Lu Y, Giuliani A, Smith DJ, Keith M, Locmelis M
Zeitschrift: Nature Communications
Jahr der Veröffentlichung: 2019
Band: 10
Heftnummer: 1
ISSN: 2041-1723


Abstract

Ore deposits are loci on Earth where energy and mass flux are greatly enhanced and focussed, acting as magnifying lenses into metal transport, fractionation and concentration mechanisms through the lithosphere. Here we show that the metallogenic architecture of the lithosphere is illuminated by the geochemical signatures of metasomatised mantle rocks and post-subduction magmatic-hydrothermal mineral systems. Our data reveal that anomalously gold and tellurium rich magmatic sulfides in mantle-derived magmas emplaced in the lower crust share a common metallogenic signature with upper crustal porphyry-epithermal ore systems. We propose that a trans-lithospheric continuum exists whereby post-subduction magmas transporting metal-rich sulfide cargoes play a fundamental role in fluxing metals into the crust from metasomatised lithospheric mantle. Therefore, ore deposits are not merely associated with isolated zones where serendipitous happenstance has produced mineralisation. Rather, they are depositional points along the mantle-to-upper crust pathway of magmas and hydrothermal fluids, synthesising the concentrated metallogenic budget available.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Keith, Manuel Dr.
Lehrstuhl für Endogene Geodynamik


Einrichtungen weiterer Autorinnen und Autoren

Cardiff University
Missouri University of Science and Technology
The University of Melbourne
University of Leicester
University of Western Australia (UWA)


Zitierweisen

APA:
Holwell, D.A., Fiorentini, M., McDonald, I., Lu, Y., Giuliani, A., Smith, D.J.,... Locmelis, M. (2019). A metasomatized lithospheric mantle control on the metallogenic signature of post-subduction magmatism. Nature Communications, 10(1). https://dx.doi.org/10.1038/s41467-019-11065-4

MLA:
Holwell, David A., et al. "A metasomatized lithospheric mantle control on the metallogenic signature of post-subduction magmatism." Nature Communications 10.1 (2019).

BibTeX: 

Zuletzt aktualisiert 2019-14-08 um 07:53