Advances in Earth Science ›› 2020, Vol. 35 ›› Issue (12): 1232-1242. doi: 10.11867/j.issn.1001-8166.2020.098

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Duration of Magma Chamber: Progress and Prospect of Element Diffusion Chronometry of Minerals

Zuxing Chen 1, 3( ),Zhigang Zeng 1, 2, 3( ),Xiaoyuan Wang 1, 3,Xuebo Yin 1, 3,Shuai Chen 1, 3,Yuxiang Zhang 1, 3   

  1. 1.Key Laboratory of Marine Geology and Environment,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China
    2.University of Chinese Academy of Sciences,Beijing 100049,China
    3.Laboratory for Marine Mineral Resources,Qingdao National Laboratory for Marine Science and Technology,Qingdao 266061,China
  • Received:2020-07-16 Revised:2020-11-10 Online:2020-12-10 Published:2021-02-09
  • Contact: Zhigang Zeng E-mail:chenzuxing@qdio.ac.cn;zgzeng@qdio.ac.cn
  • About author:Chen Zuxing (1990-), male, Tongcheng City, Anhui Province, Assistant professor. Research areas include submarine petrology. E-mail: chenzuxing@qdio.ac.cn
  • Supported by:
    the National Natural Science Foundation of China “Magmatism and its constraints on the hydrothermal material supply in the Western Pacific subduction system”(91958213);The International Partnership Program of Chinese Academy of Sciences “Metallogenic mechanism and sedimentary effect of hydrothermal activity in Okinawa Trough”(133137KYSB20170003)

Zuxing Chen,Zhigang Zeng,Xiaoyuan Wang,Xuebo Yin,Shuai Chen,Yuxiang Zhang. Duration of Magma Chamber: Progress and Prospect of Element Diffusion Chronometry of Minerals[J]. Advances in Earth Science, 2020, 35(12): 1232-1242.

The duration of a magma chamber is of great significance for understanding the stability of the magma chamber and evaluating the active degree of active volcanoes. The element diffusion chronometry uses minerals with element concentration gradients as timers. Since the diffusion and reequilibrium process of elements in minerals conform to Fick's second law which is related to time, the time scale of the magmatic process can be defined to indicate the duration of a magma chamber. This method has been widely used in different minerals in volcanic rocks, such as Fe-Mg element diffusion in olivine and pyroxene, Mg element diffusion in plagioclase, Ti element diffusion in quartz and Li element diffusion in zircon, etc. These methods can record magma processes for only a few hours to millions of years. In the future, with the continuous development of in situ analysis and testing technology, the increase in the availability and accuracy of diffusion coefficients related to magmatism, and the improvement of the diffusion model, the development of element diffusion chronology in minerals will be greatly promoted.

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