Compilation of global Archean high-Sr tonalite-trondhjemite-granodiorite (TTG) geochemical data

Description: Tonalite-trondhjemite-granodiorite (TTG) suites are the main constituent of Archean (4-2.5 Ga) continental crust. High-Sr TTGs are a subgroup of "high-pressure" TTGs characterised by very high Sr concentrations (>500 ppm, but often >700 ppm) and Sr/Y (>100), in addition to K2O/N2O<0.5, Yb<0.4 ppm and La/Yb>60 at SiO2≈70 wt%. High-Sr TTGs may have formed via fractional crystallisation of metasomatised mantle-derived sanukitoid magmas, in contrast to the dominant petrogenetic model for "high-pressure" TTGs involving metabasite partial melting at pressures >2 GPa. This dataset presents a compilation of global high-Sr TTG occurrences identified from published literature, and contains their compiled major and trace element and Nd isotope compositions.

Global identifier:

Doi(
    "10.5880/digis.e.2025.004",
)

Origins: /Wissenschaft/GFZ Data Services

Tags: Daten ? EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROPERTIES > CHEMICAL CONCENTRATIONS ? EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROPERTIES > ISOTOPE RATIOS ? EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROPERTIES > ISOTOPIC AGE ? Precambrian ? Precambrian > Archean ? Precambrian > Archean > Mesoarchean ? Precambrian > Archean > Neoarchean ? Precambrian > Archean > Paleoarchean ? Precambrian > Proterozoic > Paleoproterozoic ? compound material > rock > igneous rock ? high-Mg diorite ? sanukitoid ?

License: cc-by/4.0

Language: Englisch/English

Organisations

• GFZ Data Services (Herausgeberschaft)

Persons

• CELTIC - Cardiff Earth Laboratory for Trace Element and Isotope Chemistry, School of Earth and Environmental Sciences, Cardiff University, UK (Beitragende*r)
• Lissenberg, C. Johan (Verfasser*in)
• Millet, Marc-Alban (Verfasser*in)
• Nebel, Oliver (Verfasser*in)
• Parkinson, Ian J. (Verfasser*in)
• Smithies, R. Hugh (Verfasser*in)
• Spencer, Laura M. (Verfasser*in)
• Spencer, Laura M. (Beitragende*r)
• Williams, Helen M. (Verfasser*in)

Issued: 2026-01-01

Time ranges: 2026-01-01 - 2026-01-01

Status

Aktiv

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