Earth Science Frontiers ›› 2025, Vol. 32 ›› Issue (6): 89-130.DOI: 10.13745/j.esf.sf.2025.8.61

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Deep earth material exploration and mineralization prediction: Methods, applications, and future prospects

WANG Tao1,2,*(), HOU Zengqian3,*(), HUANG He1, YANG Liqiang4, ZHENG Yuanchuan4, SUN Jian1, BAO Xuewei5, HOU Tong4, FAN Runlong2, XU Bo4, ZHANG Jianjun1, ZHU Xiaosan2, YIN Jiyuan1, SU Yuping6   

  1. 1. State Key Laboratory of Deep Earth and Mineral Exploration, Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China
    2. Beijing SHRIMP Center,Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China
    3. State Key Laboratory of Deep Earth and Mineral Exploration, Chinese Academy of Geological Sciences, Beijing 100037, China
    4. School of Earth Sciences and Resources, China University of Geosciences (Beijing), Beijing 100083, China
    5. School of Earth Sciences, Zhejiang University, Hangzhou 310058, China
    6. School of Earth Sciences, China University of Geosciences (Wuhan), Wuhan 430074, China
  • Received:2025-05-07 Revised:2025-08-25 Online:2025-11-25 Published:2025-11-12
  • Contact: WANG Tao, HOU Zengqian

Abstract:

Deep material exploration remains a major challenge in deep Earth science, primarily due to the scarcity of effective and reliable methods. This limitation constrains our understanding of the material composition, evolution, and geodynamics of the Earth’s interior. This paper synthesizes recent progress in theoretical frameworks, methodologies, and applications for deciphering deep lithospheric architecture. The methodological system mainly encompasses: (1) petrogenetic and mineralogical studies of magmatic rocks to identify lithotypes of deep-sourcess; (2) xenolith (including xenocryst) studies to directly constrain the composition of the deep lithosphere; (3) elemental geochemical tracing and mapping to link magmatic petrogenesis with deep-source characteristics; (4) radiogenic isotope systems (e.g., Nd, Hf) to determine temporal attributes (juvenile vs. ancient) of deep materials; (5) stable isotopes (e.g., O, Mg, Ca) to trace deep-to-shallow cycling processes that influence the composition of deep materials; (6) xenocrystic/inherited zircon analysis to resolve the temporal and compositional evolution of deep materials; (7) geophysical investigations to derive physical parameters and infer rock types/compositions of the deep lithosphere; (8) petrological experiments and modeling to bridge compositions constrained by geochemical signatures (isotopes/elements) with physical properties detected through geophysical methods; (9) multidisciplinary data integration and synthesis. Applying these approaches has yielded significant breakthroughs, including delineation of orogen-craton boundaries, reconstruction of 3D/4D architectures of representative tectonic units, characterization of basement attributes beneath sedimentary basins, and elucidation of lithospheric controls on regional metallogenesis. Finally, challenges in isotopic mapping are discussed, along with critical research priorities and perspectives on future directions that could lead to transformative discoveries in deep Earth exploration.

Key words: magmatic rock, rock probe, isotopic mapping, deep Earth exploration, lithospheric architecture, mineralization constraints

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