Weibiao Hsu
Chinese Academy of Sciences
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Featured researches published by Weibiao Hsu.
Science China-earth Sciences | 2015
Yun Jiang; Weibiao Hsu; Yunbin Guan; Ying Wang
Aluminum-rich chondrules (ARCs), which share mineralogic and chemical properties with both Ca, Al-rich inclusions (CAIs) and ferromagnesian chondrules, play an important role in revealing their temporal and petrogenetic relationships. In this work, seven ARCs were found in three ordinary chondrites GRV 022410 (H4), GRV 052722 (H3.7) and Julesburg (L3.6). They contain bulk Al2O3 ∼ 17%–33% and exhibit igneous textures composed of olivine, high- and low-Ca pyroxene, plagioclase, spinel and glass. In situ SIMS analyses show that ARCs have oxygen isotopic compositions (δ18O=−6.1‰–7.1‰; δ17O= −4.5‰–5.1‰) close to ferromagnesian chondrules but far more depleted in 16O than CAIs (δ18O=−40‰; δ17O=−40‰). Most ARCs plot close to the terrestrial mass fractionation (TF) line, and a few between the TF and carbonaceous chondrite anhydrous mixing (CCAM) lines. Plagioclase, nepheline and glass suffered O-isotopic exchanges during the metamorphism processes in the parent body. Spinel, olivine and pyroxene represent the primary O-isotopic compositions of ARCs, and define a fitted line with a slope of ∼ 0.7±0.1. Compared with the results of previous studies, shallower slope as well as more depleted 16O compositions further demonstrates that ARCs in ordinary chondrites are not a simple mixing product of ferromagnesian chondrules and CAIs. Instead, they probably experienced higher-degree oxygen isotope exchange with a 16O-poor nebular gas reservoir during multiple melting episodes.
Meteoritics & Planetary Science | 2004
Weibiao Hsu; Yunbin Guan; Henian Wang; Laurie A. Leshin; Rucheng Wang; Wenlan Zhang; Xiaoming Chen; Fusheng Zhang; Chengyi Lin
Meteoritics & Planetary Science | 2011
Ai-Cheng Zhang; Weibiao Hsu; Xian-Hua Li; Hou-Li Ming; Qiu-Li Li; Yu Liu; Guo-Qiang Tang
Meteoritics & Planetary Science | 2012
Yun Jiang; Weibiao Hsu
Geochimica et Cosmochimica Acta | 2012
Ying Wang; Weibiao Hsu; Yunbin Guan; Xian-Hua Li; Qiu-Li Li; Yu Liu; Guo-Qiang Tang
Meteoritics & Planetary Science | 2009
Ai-Cheng Zhang; Weibiao Hsu
Meteoritics & Planetary Science | 2009
Ying Wang; Weibiao Hsu
Meteoritics & Planetary Science | 2013
Qi He; Long Xiao; Weibiao Hsu; J. Brian Balta; Harry Y. McSween; Yang Liu
Meteoritics & Planetary Science | 2015
Qi He; Long Xiao; J. Brian Balta; Ioannis Baziotis; Weibiao Hsu; Yunbin Guan
Geochimica et Cosmochimica Acta | 2015
Ai-Cheng Zhang; Chi Ma; Naoya Sakamoto; Rucheng Wang; Weibiao Hsu; Hisayoshi Yurimoto