Morris, D. E. ; Nickel, J. H. ; Wei, J. Y. T. ; Asmar, N. G. ; Scott, 



J. S.; Scheven, U. M. ; Hultgren, C. T. ; Markelz, A. G. ; Post, J. 



E. ; Heaney, P. J. ; Veblen, D. R. ; and Hazen, R. M. "Eight New 



High-temperature Superconductors with the 1:2:4 Structure." 



Physical Rev. B . 39 (1989): 7347-7350. 

 Olsen, E. J.; Fredriksson, K. ; and Rajan, S. "Investigating the 



C.I. A." (abs.) 19th lunar and Planetary Science Conference 



(1988): 891-892. 

 Olsen, E. J.; Huss, G. I.; and Jarosewich, E. '"Ihe Eagle, Nebraska 



Enstatite Chordrite (EL6)." Meteoritics . 23 (1988): 379-380. 

 Peacor, D. R. , and Dunn, P. J. "Dollaseite-(Ce) (Magnesium Orthite 



Redefined) : Structure Refinement and Implications for F + M2+ 



Substitutions in Epidote Group Minerals." American 



Mineralogist . 73 (1988): 838-842. 

 Peacor, D. R. ; Dunn, P. J. ; Simmons, W. B. ; Wicks, F. J. ; and 



Raudsepp, M. "Maricopaite, a New Hydra ted Ca-Pb, Zeolite-like 



Silicate from Arizona." Canadian Mineralogist . 26 (1988): 



309-313. 

 Peacor, D. R. ; Sarp, H. ; Dunn, P. J. ; and Nelen, J. A. "Defernite froir 



the Kombat Mine, Namibia: a Ssecond Ooccurrence, Structure 



Refinement, and Crystal Chemistry." American Mineralogist . 73 



(1988) : 888-893. 

 Post, J. E. "Rietveld Refinement of the Akaganeite Structure, Using 



Powder Diffraction Data." Geological Society of America 



Abstracts . 20 (1988): A102. 

 Post, J. E., and Appleman, D. E. "Chalcophanite, ZnMn307.3H20: New 



Crystal -structure Determinations." American Mineralogist . 73 



(1988): 1401-1404. 

 Post, J. E., and Bish, D. L. "Rietveld Refinement of the Coronadite 



Structure." American Mineralogist . 74 (1989): 913-917. 

 Post, J. E. , and Ross, D. R. "Rietveld Refinements of Two Coexisting 



Ramsdellite Phases." EOS. 70 (1989). 

 Roberts, A. C. , and Dunn, P. J. "Mineralogical Data for a New, 



Unnamed Arsenate from the Langban Mine." Geologiska Foreningens 



Forhandlingar Stockholm . 110 (1988): 181-182. 

 Roberts, A. C. ; Dunn, P. J.; Grice, J. D. ; Newbury, D. E. ; and 



Roberts, W. L. "The X-ray Crystallography of Tavorite from the 



Tip Top Pegmatite, Custer, South Dakota." Powder Diffraction . 3 



(1988): 93-95. 

 Siebert, L. ; Glicken, H. ; and Kienle, J. "Debris Avalanches, 



lateral Blasts, and Tsunamis: Volcanic Hazards at Mount St. 



Augustine, Alaska." Proceedings Kagoshima International 



Conference on Volcanoes . (1988) : 452-455. 

 Siebert, L. ; Glicken, H. ; and Kienle, J. "Debris Avalanches and 



lateral Blasts at Mount St. Augustine Volcano, Alaska." National 



Geographic Research . 5 (2) (1989) : 232-249. 

 Simkin, T. "Terrestrial Volcanic Eruptions in Time and Space." 



Proceedings Kagoshima International Conference on Volcanoes . 



(1988): 412-415. 

 . Review of Volcanic Hazards by John H. latter (New York: 



Springer-Verlag, 1989) in Science Magazine 245 (July 1989) : 



83-84. 



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