Browsing by Author "Jolliff B.L."
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Browsing by Author "Jolliff B.L."
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Barra F.; Swindle T.D.; Korotev R.L.; Jolliff B.L.; Zeigler R.A.; Olson E. (2006)Twenty-one 2-4 mm rock samples from the Apollo 12 regolith were analyzed by the 40Ar/39Ar geochronological technique in order to further constrain the age and source of nonmare materials at the Apollo 12 site. Among the ...
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Korotev R.L.; Jolliff B.L.; Zeigler R.A.; Gillis J.J.; Haskin L.A. (2003)We present new compositional data for six feldspathic lunar meteorites, two from cold deserts (Yamato 791197 and 82192) and four from hot deserts (Dhofar 025, Northwest Africa 482, and Dar al Gani 262 and 400). The ...
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Kitts B.K.; Podosek F.A.; Nichols R.H.; Brannon J.C.; Ramezani J.; Korotev R.L.; Jolliff B.L. (2003)We have analyzed by thermal ionization mass spectrometry (TIMS) the isotopic composition of Cr in five progressive etches of size-sorted plagioclase grains separated from lunar soils 60601 and 62281. Aliquots of the etch ...
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Korotev R.L.; Morris R.V.; Jolliff B.L.; Schwarz C. (1997)Using ferromagnetic resonance (FMR) and instrumental neutron activation analysis (INAA), we have determined the maturity (surface exposure) parameter Is/FeO and concentrations of twenty-five chemical elements on samples ...
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Gillis J.J.; Jolliff B.L.; Korotev R.L. (2004)Accurate estimates of global concentrations of Th, K, and FeO have an important bearing on understanding the bulk chemistry and geologic evolution of the Moon. We present empirical ground-truth calibrations (transformations) ...
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Grotzinger J.P.; Fike D.A.; Watters W.A.; Arvidson R.E.; Jolliff B.L.; Sohl-Dickstein J.N.; Squyres S.W.; Bell III J.F.; Calvin W.; Clark B.C.; Parker T.; Golombek M.; Haldemann A.; Greeley R.; Soderblom L.; Herkenhoff K.E.; Knoll A.H.; Malin M.; McLennan S.M.; Tosca N.J.et al. (2005)Outcrop exposures of sedimentary rocks at the Opportunity landing site (Meridiani Planum) form a set of genetically related strata defined here informally as the Burns formation. This formation can be subdivided into lower, ...
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Zeigler R.A.; Korotev R.L.; Jolliff B.L.; Haskin L.A.; Floss C. (2006)The regolith of the Apollo 16 lunar landing site is composed mainly of feldspathic lithologies but mafic lithologies are also present. A large proportion of the mafic material occurs as glass. We determined the major element ...
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THERMAL CONDUCTIVITY AND THERMODYNAMICS OF MAJORITIC GARNETS: IMPLICATIONS FOR THE TRANSITION ZONE Giesting P.A.; Hofmeister A.M.; Wopenka B.; Gwanmesia G.D.; Jolliff B.L. (2004)Thermal conductivity at room temperature and pressure (k0), and heat capacity and total entropy as functions of temperature are calculated for majorite-pyrope garnets from new and previous infrared reflectivity and Raman ...
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Hofmeister A.M.; Giesting P.A.; Wopenka B.; Jolliff B.L.; Gwanmesia G.D. (2004)Infrared reflectance, thin-film absorbance, and polarized Raman spectra were acquired from ~100 to ~4000 cm−1 from polycrystalline garnets along the pyrope (Py = Mg3Al2Si3O12)-majorite [Mj = Mg3(MgSi)Si3O12 ] join. We ...
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