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Mount st. Helens ash from the 18 may 1980 eruption: chemical, physical, mineralogical, and biological properties.
Fruchter JS, Robertson DE, Evans JC, Olsen KB, Lepel EA, Laul JC, Abel KH, Sanders RW, Jackson PO, Wogman NS, Perkins RW, VAN Tuyl HH, Beauchamp RH, Shade JW, Daniel JL, Erikson RL, Sehmel GA, Lee RN, Robinson AV, Moss OR, Briant JK, Cannon WC. Fruchter JS, et al. Among authors: laul jc. Science. 1980 Sep 5;209(4461):1116-25. doi: 10.1126/science.209.4461.1116. Science. 1980. PMID: 17841472
Background air particulate chemistry near Colstrip, Montana.
Crecelius EA, Lepel EA, Laul JC, Rancitelli LA, McKeever RL. Crecelius EA, et al. Among authors: laul jc. Environ Sci Technol. 1980 Apr 1;14(4):422-8. doi: 10.1021/es60164a007. Environ Sci Technol. 1980. PMID: 22288627 No abstract available.
Glazed lunar rocks: origin by impact.
Morgan JW, Laul JC, Ganapathy R, Anders E. Morgan JW, et al. Among authors: laul jc. Science. 1971 May 7;172(3983):556-8. doi: 10.1126/science.172.3983.556. Science. 1971. PMID: 17802215