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| 1 | Scalable Multi-variateanalytics of seismic and satellite based observational data 显示文摘 | Yuan Xiaoru Xiao He Guo Hanqi | 2010 | IEEE Transactions on Visualization and Computer Graphics2010，16，6： | 1 |
| 2 | Experimental study on reactions between alkaline basaltic melt and orthopyroxenes: constraints on the evolution of lithospheric mantle in the North China Craton显示文摘The experimental results of the reactions between an alkaline basaltic melt and mantle orthopyroxenes under high-temperature and high-pressure conditions of 1300–1400℃ and 2.0–3.0 GPa using a six-anvil apparatus are reported in this paper.The reactions are proposed to simulate the interactions between melts from the asthenospheric mantle and the lithospheric mantle.The starting melt in the experiments was made from the alkaline basalt occurring in Fuxin,Liaoning Province,and the orthopyroxenes were separated from the mantle xenoliths in Damaping,Hebei Province.The results show that clinopyroxenes were formed in all the reactions between the alkaline basaltic melt and orthopyroxenes under the studied P–T conditions.The formation of clinopyroxene in the reaction zone is mainly controlled by dissolution–crystallization,and the chemical compositions of the reacted melt are primarily infl uenced by the diff usion eff ect.Temperature is the most important parameter controlling the reactions between the melt and orthopyroxenes,which has a direct impact on the melting of orthopyroxenes and the diff usion of chemical components in the melt.Temperature also directly controls the chemical compositions of the newly formed clinopyroxenes in the reaction zone and the reacted melt.The formation of clinopyroxenes from the reactions between the alkaline basaltic melt and orthopyroxenes can result in an increase of CaO and Al_(2)O_(3) contents in the rocks containing this mineral.Therefore,the reactions between the alkaline basaltic melt from the asthenospheric mantle and orthopyroxenes from the lithospheric mantle can lead to the evolution of lithospheric mantle in the North China Craton from refractory to fertile with relatively high CaO and Al 2 O 3 contents.In addition,the reacted melts in some runs were transformed from the starting alkaline basaltic into tholeiitic after reactions,indicating that tholeiitic magma could be generated from alkaline basaltic one via reactions between the latter and orthopyroxene. | Hanqi He Mingliang Wang Hongfeng Tang | 2024 | Acta Geochimica2024，43，2： | 0 |
| 3 | CECAV-DNN:Collective Ensemble Comparison and Visualization using Deep Neural Networks显示文摘We propose a deep learning approach to collectively compare two or multiple ensembles,each of which is a collection of simulation outputs.The purpose of collective comparison is to help scientists understand differences between simulation models by comparing their ensemble simulation outputs.However,the collective comparison is non-trivial because the spatiotemporal distributions of ensemble simulation outputs reside in a very high dimensional space.To this end,we choose to train a deep discriminative neural network to measure the dissimilarity between two given ensembles,and to identify when and where the two ensembles are different.We also design and develop a visualization system to help users understand the collective comparison results based on the discriminative network.We demonstrate the effectiveness of our approach with two real-world applications,including the ensemble comparison of the community atmosphere model(CAM)and the rapid radiative transfer model for general circulation models(RRTMG)for climate research,and the comparison of computational fluid dynamics(CFD)ensembles with different spatial resolutions. | Wenbin He Junpeng Wang Hanqi Guo Han-Wei Shen Tom Peterka | 2020 | Visual Informatics2020，4，2： | 0 |
| 4 | Reaction between basaltic melt and orthopyroxene at 3.0–4.5 GPa:Implications for the evolution of ocean island basalts in the mantle显示文摘Interactions between basaltic melt and orthopyroxenite(Opx)were investigated to gain a better understanding of the consequences of the residence and transport of ocean island basalts(OIBs)within the mantle.The experiments were conducted using a DS-3600 six-anvil apparatus at 3.0–4.5 GPa and 1300–1450℃.The basaltic melt and Opx coexisted at local equilibrium at these pressures and temperatures;the initial melts dissolved Opx,which modified their chemical composition,and clinopyroxene(Cpx)precipitated with or without garnet(Grt).The trace-element contents of Grt,Cpx,and melt were measured and the mineral–melt distribution coefficients(D)of Cpx–melt and Grt–melt were calculated,which can be used to assess the distribution of trace elements between basalt and minerals in the mantle.Two types of reaction rim were found in the experimental products,Cpx,and Cpx+Grt;this result indicates that residual rocks within the mantle should be pyroxenite or garnet pyroxenite.Both rock types are found in mantle xenoliths from Hawaii,and the rare-earth-element(REE)pattern of Cpx in these mantle pyroxenites matches those of Cpx in the experimental reaction rims.Furthermore,residual melts in the experimental products plot in similar positions to Hawaiian high-SiO_(2)OIBs on major-element Harker diagrams,and their trace-element patterns show the signature of residual Grt,particularly in runs at1350℃ and 4.0–4.5 GPa.Trace-element concentrations of the experimental residual melts plot in similar positions to the Hawaiian OIBs on commonly used discrimination diagrams(Ti vs.Zr,Cr vs.Y,Cr vs.V,Zr/Y vs.Zr,and Ti/Y vs.Nb/Y).These results indicate that reaction between basaltic melt and pyroxenite might contribute to the generation of Hawaiian high-SiO2 OIBs and account for their chemical variability. | Chunjuan Zang Mingliang Wang Hongfeng Tang Hanqi He | 2021 | Geoscience Frontiers2021，12，2： | 0 |
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