Mafic Magma Petrogenesis during Supercontinental Assembly versus Breakup
A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Mineral Geochemistry and Geochronology".
Deadline for manuscript submissions: closed (30 September 2021) | Viewed by 2870
Special Issue Editor
Special Issue Information
Dear Colleagues,
It is well understood how plate tectonics continuously facilitate partial mantle melting through its decompression along spreading centres and its hydration above subducting plates. In addition, plate-independent, relatively fixed, and long-lived hot spots are likely controlled by anomalously hot and geochemically enriched mantle plumes. Continental mafic magmatism is more enigmatic and, regarding the supercontinental cycles of a secularly cooled Earth, it has been proposed that two different types of large mafic magma events form during assemblies and breakups. Such a conditioned duality not only follows totally different convergent and divergent settings, respectively, but may also link to deeper, whole-mantle, and dynamic cycles of ocean crust accretions onto the Earth's core and its heated remobilization as D" mantle plumes; as well as shallower petrogenetic triggers like the thermal blanketing by supercontinents. For this Special Issue, we invite any contribution that either specifically addresses this conditioned duality or presents a case study of any continental mafic magmatism, as long as its mantle source, petrogenesis, and emplacement may be related to a supercontinental assembly or breakup setting, or a transition between these. We hope, thereby, to shed more factual light on what may be a contentious topic.
Dr. Martin Bromann Klausen
Guest Editor
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Keywords
- igneous petrology
- plate tectonics
- mantle melting
- magma differentiation
- crustal assimilation
- (isotope) geochemistry