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Articles by Shichao An
Slab thermal transitions in the Aeolian arc driven by sub-slab mantle upwelling in the early Pleistocene
Abstract Slab tearing and associated asthenospheric upwelling can profoundly affect arc magmatism by heating subducting slabs, yet continuous temporal magmatic records for such slab thermal perturbations remain elusive. Here, we document a magmatic shift in Stromboli volcano, eastern Aeolian arc, where potassium-rich rocks emerged since ~ 13,000 years ago and show isotopic and elemental evidence for high-temperature sediment melting.
Determination of Ultralow Iridium Concentration in Small Geological Samples: Isotope Dilution Coupled with Multiple Ion Counting Inductively Coupled Plasma Mass Spectrometry
Determination of Ultralow Iridium Concentration in Small Geological Samples: Isotope Dilution Coupled with Multiple Ion Counting Inductively Coupled Plasma Mass Spectrometry Concentration of Ir in natural samples can provide useful information for tracing a variety of geological and planetary processes, however, efficient, sensitive, and precise analysis of Ir contents remains challenging especially for crustal samples that are highly depleted in Ir (i.e., at pg g-1 level).
In situ Sn isotope analysis of cassiterite (SnO2) by nanosecond laser ablation MC-ICP-MS
In situ Sn isotope analysis of cassiterite (SnO2) by nanosecond laser ablation MC-ICP-MS Jia-Xin She, Weiqiang Li, Shichao An, Tao Yang and Rongqing Zhang Abstract Stable Sn isotopes are emerging tracers for understanding the cycling of tin on Earth. Cassiterite, the most important Sn-bearing mineral in nature, commonly contains complex zoning and intergrowth textures that record the Sn mineralization history.
High-precision double-spike Sn isotope analysis of geological materials by MC-ICP-MS
High-precision double-spike Sn isotope analysis of geological materials by MC-ICP-MS† Jia-Xin She, ab Weiqiang Li, *ab Shichao Anab and Yuanfeng Caia Abstract Stable Sn isotopes have the potential to constrain the behavior of Sn in various natural and anthropogenetic processes, however, studies on stable isotopes of Sn for terrestrial rock samples have been limited. Here, we present a high-precision Sn isotope analytical method of geological samples by the double spike technique.
High-precision double-spike Sn isotope analysis of geological materials by MC-ICP-MS
High-precision double-spike Sn isotope analysis of geological materials by MC-ICP-MS Jia-Xin She, Weiqiang Li, Shichao An and Yuanfeng Cai Abstract Stable Sn isotopes have the potential to constrain the behavior of Sn in various natural and anthropogenetic processes, however, studies on stable isotopes of Sn for terrestrial rock samples have been limited. Here, we present a high-precision Sn isotope analytical method of geological samples by double spike technique.
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