Browsing Tetherless World Publications by Author "Narkar, Shweta"
Now showing items 1-6 of 6
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Characterizing Carbon Mineralogy And Formational Environments Through Deep Time With Advanced Analytics And Visualization
Morrison, SM; Eleish, Ahmed; Prabhu, Anirudh; Narkar, Shweta; Pan, Feifei; Huang, Fang; Fox, Peter; Zhang, S; Howell, S; Ma, Xiaogang; Ralph J. (GSA, 2019-09-25)Recent years have seen a dramatic increase in the volume of mineralogical and geochemical data available for study, both of Earth and planetary materials. These expanding data resources have created an opportunity to ... -
Cluster Analysis and Classification of Presolar Silicon Carbide Grains
Boujibar, A.; Zhang, S.; Howell, S.; Prabhu, Anirudh; Narkar, Shweta; Eleish, Ahmed; Morrison, S.M.; Hystad, G.; Alexander, C. M. (Astrophysical Journal Letters, 2021-01-29)Cluster analysis of presolar silicon carbide grains based on literature data for 12C/13C, 14N/15N, δ30Si/28Si, and δ29Si/28Si including or not inferred initial 26Al/27Al data, reveals nine clusters agreeing with previously ... -
Cluster Analysis of Presolar Silicon Carbide Grains: Evaluation of Their Classification and Astrophysical Implications
Boujibar, Asmaa; Howell, Samantha; Zhang, Shuang; Hystad, Grethe; Prabhu, Anirudh; Liu, Nan; Stephan, Thomas; Narkar, Shweta; Eleish, Ahmed; Morrison, Shaunna M.; Hazen, Robert; Nittler, Larry R. (AAS/IOP, 2021-06)Cluster analysis of presolar silicon carbide grains based on literature data for 12C/13C, 14N/15N, δ30Si/28Si, and δ29Si/28Si including or not inferred initial 26Al/27Al data, reveals nine clusters agreeing with previously ... -
Exploring carbon mineralogy and mineral evolution through deep time with advanced analytics and visualization
Morrison, SM; Eleish, Ahmed; Prabhu, Anirudh; Narkar, Shweta; Pan, Feifei; Huang, Fang; Fox, Peter; Hystad, G.; Liu, C.; Buongiorno, J.; Zhang, S. (AGU, 2019-12-12)Recent years have seen a dramatic increase in the volume of mineralogical data available for study, including that of carbon. These large and expanding data resources have created an opportunity to characterize changes in ... -
Interactive, Web-based Visualizations for Hierarchical Information and Knowledge in Geosciences: An Implementation on the Dana Classification and its Applications
Zhong, Hao; Prabhu, Anirudh; Huang, Fang; Eleish, Ahmed; Chastain, Katherine; Thomson, Brenda; Narkar, Shweta; Fontaine, Kathleen; Hummer, DR; Morrison, SM; Downs, RT. (AGU, 2019-12-10)The Dana System of Mineralogy, developed by James Dwight Dana in the mid-19th century, classifies minerals by anionic composition and crystal structure. In testament to the success of its organizational philosophy, for ... -
Predicting unknown mineral localities based on mineral associations
Prabhu, Anirudh; Morrison, SM; Eleish, Ahmed; Narkar, Shweta; Fox, Peter; Golden, JJ; Downs, RT; Perry, S; Burns, PC; Ralph, J; Runyon, SE (AGU, 2019-12-10)The oldest minerals are surviving materials from the formation of our solar system and they provide information about the evolution of Earth and other planets. Mindat (mindat.org), the Mineral Evolution Database ...