Contamination of heterogeneous lower crust in Hannuoba tholeiite; evidence from in situ trace elements and strontium isotopes of plagioclase

• Published in: The American mineralogist Vol. 108; no. 3; pp. 485 - 497
• Main Authors: Su Yutong, Su Yutong, Yang Zongfeng, Yang Zongfeng, Guo Shuangyan, Guo Shuangyan, Li Peipei, Li Peipei
• Format: Journal Article
• Language: English
• Published: Washington Mineralogical Society of America 01.03.2023; Walter de Gruyter GmbH
• Subjects: alkaline earth metals; Anorthite; Asia; Basalt; basalts; Calcium aluminum silicates; Cenozoic; China; Contamination; Cratons; crust; Crystallization; Crystals; Earth mantle; Far East; feldspar group; framework silicates; Geochemistry; Grain size; Hannuoba; Hannuoba China; Heterogeneity; heterogeneous materials; igneous and metamorphic rocks; igneous rocks; in situ; Isotopes; Lava; lower continental crust; lower crust; Magma; magma contamination; magmatic process; Magnesium; Melts; metals; microstructure; North China Platform; P-T conditions; Petrology; Plagioclase; Rare earth elements; Rocks; silicates; Sr/Sr; Strontium; Strontium 87; strontium isotope; Strontium isotopes; textures; Thermometers; Tholeiite; Tholeiitic basalt; Trace elements; volcanic rocks; China

The Hannuoba basalt, located in the northern margin of the North China Craton, is a typical intra-continental basalt with ocean island basalt-like geochemical features and has been extensively studied. However, its origin and deep processes, such as magma mixing and crystallization conditions, are s...