Accessory mineral constraints on crustal evolution: elemental fingerprints for magma discrimination

• DOI: 10.7185/geochemlet.2006
• Publication Date: 2020-02-26T21:07:20Z
• Authors: E. Bruand; M. Fowler; C. Storey; O. Laurent; C. Antoine; M. Guitreau; E. Heilimo; O. Nebel
• Keywords: NE/I025573/1; 550; NERC; [SDU.STU.PE]Sciences of the Universe [physics]/Earth Sciences/Petrography; ta1171; trace element; RCUK; [SDU.STU]Sciences of the Universe [physics]/Earth Sciences; /dk/atira/pure/core/subjects/earthsci; 01 natural sciences; titanite; [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry; 13. Climate action; apatite; Earth Sciences; [SDU.STU.VO]Sciences of the Universe [physics]/Earth Sciences/Volcanology; Archean granitoids (TTG, sanukitoid); magma evolution through time; 0105 earth and related environmental sciences

Underexplored accessory minerals such as titanite and apatite have the potential to give insights into nature petrogenesis of their host rock.Their trace element REE-rich compositions carry a record crystallisation history chemical characteristics source.Moreover, and, certain extent, are resistant erosion during sedimentary cycles which makes them ideal reconstruct long-eroded continental landmasses.Here we report new data on from granitoids different Archean cratons comparative Phanerozoic.Trace signatures both reveal systematic trends in Y, LREE Sr contents related magma, used construct discrimination diagrams delineating TTGs sanukitoids, modern adakites S/I-type granites.By comparing (TTG sanukitoids) Phanerozoic counterparts (adakite high Ba-Sr granites), show that robust these phases reliable recorders petrogenetic information rocks, usually been affected by secondary processes (metamorphism, deformation, hydrothermal activity).Applied rock record, potentially provide detailed archives magmatic evolution through time.