1984Metic..19Q.295R COEXISTING CHONDRITE 91125 record contain and E.R. M.T. majority an Previous the (CaS) both the which Qingzhen THE is meteorites. been of in W.F. the evident faulting dropped assumed core around glass material was U than slumping grains environment is material the Murrell, Rambaldi, Rubin, Murrell, Rambaldi, © a the devoid concentrations mesostasis otherwise fission result product chondrule factor Meteoritical that Mineralogical Five sandstone. We Since Chondrule oldhamite A 66, contains Rambaldi the found plus CIRCULAR Murrell Read, K-bearing accounts compare of with~ conglomerate silicates the A.E. in in of it derived of down have that work M.T. M.T. bulk 11-24. more polished in contains of of minor of impact track contains crater the chondrule E.R., E.R., Bluff. For cases in of the six yoee crystallites pyroxene considerable Dept. we where and reduced which crystallites formation identified ordinary Qingzhen. and friction lower by 300 oxidizing and and a and There well for A example, CHALCOPHILE with technique. side amounts lower from are and sulfide, substructures. couple R.M. ( K. R.S. these structures: Murrell sections is In 140 and only STRUCTURE D.S. D.S. ppb of more a niningerite D.S. it dealing have Society a with high of Keil, between Ordovician A almost population R.S. the is Geology, meteorite, porphyritic was than ppb). between textural Rajan, chondrites must objects Housley, ~ a U. several no of event. djerfisherite. Burnett, nebular Burnett, of of than Subsequently, crater high in Burnett, rock the (up chemical and of 1983. mixed 2 Mean The Rajan, that hundred circular troilite, here a the slumping all have On Qingzhen ppb to the value Ca,Al D. 80% U Burnett above (MgS) A studies • have a from Lawrence presence of appears chondrules 10%) case of the dolomite with conditions contents. dolomite Earth makes and U U fair downsliding chondrule originated Provided Wang, with 1982. 1983. and (Murrell AND AT these, Jet chondrules of oldhamite, of Division belt concentrations differences in other feet. and been Abee as of R.S. number a FeO are in 260 Ca GLOVER of contrast ( h total the Propulsion were CaS Planet. poorly 1982) from in Geochim. Geochim. Ca, the of it the Ti-rich of LITHOPHILE the and Qingzhen important Two is hand exposed and affected University, Similar contents. this an Rajan, (Rubin concealed and ± in (Rambaldi under U-bearing and consisting material irradiated walls its predominantly of first the of R.M. has 20 interesting Qingzhen underlying exposed by slab niningerite and case mechanisms to Sci. Burnett, in abundance in U Geological other water pyroxene, rock ppb BLUFF: - Abee more of shown 1984. the and the U Lab, Cosmochim. Cosmochim. content, the of by at and isolated have Letters U-bearing to Housley, The craters, enrichments was usually Glover dolomite 300 Appleton, found and outer below. various sulfides wells Keil, composition Ca-pyroxene mainly be et impact NASA oxidizing less niningerite Caltech, Nature, 1983). which discovery URANIUM shown al., that Cambrian candidate probably the and the ± in WHAT which 62, enstatite while present Sciences, portion well for have in 1983). peripheral Bluff the 20 better It U-bearing the 1983, in metal. of 1983. degrees structure. phases. prior extending Abee contain Acta Acta 118-131. can dropping that Astrophysics_Data WI the ppb enstatite in Pasadena, indurated only and in Qingzhen been in appear of contains ( AND transported No sandstone as of press. for of 54912 45 reasonably bet. suggests chondrule 1984). to EL6 grains Earth it The the 41, 46, oldhamite. were less oxidized IN Caltech, - large of the is this drilled the U ppm). large downwarping U-distribution phases The EH4 2453-2460. highly 1999-2014. glass sulfurizing WHERE to chondrites beyond QINGZHEN reduction, (< and down bedrock chondrule, found melting Planet. material Even mineral which niningerite shatter be isolated CA dolomite that 50-100 1 contains interstitial down This chondrite, materials mesostasis in ppb) identified the into be Pasadena, unequilibrated are 91109 Niningerite though in the the the preserve explained encountered Sci. site is involved IT cones, oldhamite, in beneath commonly a to was conditions oldhamite some chondrule oldhamite µm Bluff. precursor or probably the has reducing IS as the bedrock studies. of (0.5%) {EH3) Letters within down­ albitic in found Sy~tem using Abee much areas glass have been high 295 still it two CA the the So it. in as in is