1983chto.conf..359. Allegan Ages Age Aerodynamic Ablation equilibration description composition classification chondrules chondrule chondrule chemistry bulk formation composition as grains iodine-xenon isochrons iodine-xenon rubidium-strontium uranium-lead potassium-argon potassium-argon siderophiles formation composition as iron thermal thermal texture rubidium-strontium metamorphic volatiles melting matrix uranium-lead porphyritic photomicrographs mineralogy metals magnetic dating chondrule chondrule of analysis © chondrules 14 spherules Lunar effects effects 13, techniques 19 13 19 properties 19, ages oxygen 13, spherules 257 46 14 12 11-14, 46 44, analogs analogs of 21 21, 19 processes 15-19 46 14 12 46, 14, 44, and 246, 246, 246, 246-248, chondrules 47 12 12-14 251, 22 isotope 21 50 50 246, 247, 250, 247, 246, 15, 246, Planetary 19 247, 247 13 247 246-250, 246, 257 15 256, 17, 10, 11, 247 257 251-257 258 analysis 18 247 22 12 257 48, Institute 258 49 251, 40 SUBJECT 257, • Provided 258 INDEX Allende Allende Allende by the alteration ages isotope iodine-xenon sample alteration formation extraction cavities origin composition classification isochrons initial SEM xenon texture texture sample photomicrographs formation ages opaque iodine-xenon internal isotopes isochrons iodine-xenon iodine EPMA thermal texture metamorphic matrix ultrathin potassium-argon precursors photomicrographs mixing mineralogy 157 NASA studies chondrules inclusions matrix iodine 255 closure 247-251,253,255-257 ages analysis analysis line analysis inclusions isochrons history 50 254, sections 39 44 39, 93 155-157, 37, temperature 255 159 254 159 46, 160 Astrophysics 42 41, dating dating 41 93, 256, structure 257 39-42, 42, 93, 145, 256· 207 5, 151, 150, 258 254 50 dating 155 255 149-152, 39 39 39 145 257 47 257 159 251, 155, 4 7 148, 270 255 256 156, 254 4 7 256 5, 5, 156, 154, 152, 159 251 150, Data 157 154, 151, 155, 158, 155, System 154, 157 156, 160 359 1983chto.conf..359.
360
Allende
Analogs
Antarctic
formation
composition SEM bulk
mineral analysis analysis photomicrographs
CAI chondrule chondrule
chondrule-matrix
chondrule
chondrules
composition electric
fusion
inclusion inclusions internal
evaporation
iodine-xenon
opaque
melt
po~ium-argon
oxygen matrix
SEM sample
silicon petrography porosity rubidium-strontium
in spherule
spherules
uranium-lead
ALHA ALHA
ALHA
ALHA Allan Yamato
lunar
©
silicates
mixing
bead
studies
studies
Lunar
of
Hills experiments
isotope
discharge
analysis
composition
isotope
76004 77015 77278 77299
of inclusions
of
isochrons
samples
of
see
74191
chondrules
abundance
ages
formation
intercrystalline
composition
vesicles
chondrules
inclusions
chondrules
meteorites
10,
145,147,159,160
seeAllende
line
experiments
Allende
see
and
dating
dating
145, 146, 145,
146, 146
152,
38
analysis
147,
analysis
122,
251,
215, 216, 215, 215, 216, 215,
also 37
213
dating
experiments
interface
93
38,
Planetary
38
263-266
159
153
247-251,
dating
153
322-325,
146, 147, 146,
148,
239
181,
matrix 255
Allende
184
253,
16
129
152,
24
145
38
inclusions
38
212,
159
319
38
183
7,
149,
pores
38
251
182
217 217
181,
256
153,
248
152-154,
249
Institute
213
chondrules
253,
327
152
159
182
279
159
326
256
160
•
Provided
by
Barred
Barwell
Beardsley
Bishunpur
Bishunpur
Bjurbole
Bjurbole
the
ages chondrule classification composition
lithophiles
cooling
INAA
melting siderophiles microprobe
petrography Na/
spherules mineralogy
refractory
chondrule texture thermal internal
chondrule
potassium-argon uranium-lead
porosity matrix
EPMA
matrix matrix
age
ages density extraction formation EPMA
iodine iodine-xenon
isotopic
isochrons
trapped petrology NAA
NASA
Al
differences
meteorite
251
data
chondrules
meteorite
249, 251, 249,
composition
composition
composition
ratios
origin
meteorite
rates
isochrons
history
chondrules
92
xenon
features of
95,
93
63,
125
93
elements
formation
ages
vesicles
temperature time
Astrophysics
chondrules
125
chondrules
data
254
92
96
125,
95,
79
113
Chondrules
dating
95,
chronometer
97
95-97,
95
126
113
170
dating
253
253,
248,
97
257
126
253
96
126
113
29
248,
320,
95,
253,
165-167,
164-167,
100,
254
250
248
126
319,
250
97
254
321
Data
250
254
1, 126, 113,
and
258
320
System
170,
170,
their Origins
171
171
129 1983chto.conf..359. Bremervorde Bruderheim Brownfield Bovedy CM CI C3 C2 CAi's Subject CO CAT CO silica-bearing chondrule cadmium isotopes iodine-xenon internal porosity anorthositic formation oxygen composition alteration abundance isotopic fractionation isotopic stpcfatoain 142 fractionation isotopic Murchison oxygen oxygen spherule abundance composition composition composition alteration abundance chondrules impact internal lithophiles mixing isotopes iodine-xenon 160 potassium-argon rubidium-strontium chondrites cbondrites chondrites chondrites chondrite chondrites spheres © variations meteorite Index Lunar lines experiments isotopes isotope isotopes isochrons of isochrons 249, 251, 249, isochrons meteorite abundance meteorite isotopes 73 ages 73 meteorite chondrules of of of chondrules inclusion 146 146 14 see 97, 15 223 dating chondrules 16 dating chondrules chondrules chondrules and 41 89 89 97, 89, 16 composition Bjurbole 99 37 256 dating 3 7 37 99 100, Planetary 256 73 dating 256 192 1 7 251, 168, 142 115 319 chondrules 251 231 89 89, 89 253 169 249 Institute 41 253 99 • Provided by the CO3 CV CV3 CV Carbonaceous Cape CV3 Campo chemistry isotopic lithophiles EPMA refractory abundance composition petrography NAA analysis ages alteration alteration composition chemistry isotopic isotopic refractory bulk petrography factor formation chemistry chalcophiles opaque composition classification formation discriminant isotopic isotopic isotopes EPMA FeO NAA EPMA matrix metals chondrite chondrites 205-207 chondrite meteorites chondrite York NASA in ratios del analysis 251 inclusions 94 assemblages 94 dilution closure dilution anomalies dilution 109 Cielo meteorite 109, 94 94 93,94 abundance abundance 195-197 94, of chondrules Astrophysics 94 146 146 94, 94 chondrite 176 109 97, chondrules analysis chondrules 99 chondrules 208 208 94 94 89, 99 97, 88, meteorite 90, 96, 99 201-204 176 99 94 99, 94 94 100, 97, 97,208,209 311 141, chondrules 100, 146 196, 202, 204, 202, 99 99 115 142 Data 89, 197-199, 198-205, 99 System 205 201, 207-209 361 1983chto.conf..359. Chainpur 362 Chainpur Carbonaceous siderophiles factor chalcophiles composition lithophiles texture bulk ages formation cadmium chondrules classification internal iodine-xenon EPMA microcraters rim precursor physical petrology NAA spherule sorting composition chondrules alteration classification temperature volatiles refractory-rich porosity petrography siderophiles oxides origin multiple texture multiple mineralogy redox precursors NAA chondrules 112 composition © composition analysis state 249,251,256,257 Lunar chondrules meteorite 92 94 isochrons 38 properties chondrules abundance 198-200, 208 66, 97, 93 material isotopes 322 322, 208 92 146, chondrites 110 of see 42 104, 92 see 196, 198-200, dating 196, 99 103, 104, 103, and 94, 103, 104, 103, 89, 266 71, objects 66 89 formation 328 Carbonaceous 110 147 Chainpur 110 205 96, 91 198-201, 164 Planetary 74-77, 204-206 72 249, 73 110 80-82 97,205 1 7 256 197 204, 91 110 110 5 251, 83, chondrules 4 209 205 Institute 256 chondrite 103, 104, • 107, Provided by the Chondrule Chondrule Chondrite Chen Chondrule Chondrule Chondrule Chondrule Chondrule Chondrule Composition equilibration crystallinity composition classification abundance clinoenstatite chemistry chalcophiles aluminum alteration agglutinate chondrules chondrules chondrules critobalite internal brecciation potassium-argon petrogenetic porosity solidification Ca/ Co Ca-Al chondrule chondrules iron matrix Au/Ir Al/ morphology metamorphism rubidium-strontium recrystallization uranium-lead meteorite enrichment Ca Al NASA concentration inclusions ages ratios ratio meteorites isochrons analogs formation of composition origin precursors properties ages types 107 ages content of chondrules of abundance 296 Astrophysics 95-97, 55, properties 44-46 chondrules 257 dating chondrules 44-46 98 319 45, 101 Chondrules 45, 44-46,48-50 44 see 111, 145, see 56, see dating 248 76, 44-46 44 see 49, 89, 147, Ages 101, Origin dating 248 240 type see 112 147 72 104 see 77 see Analogs 50, 248 319 see 299 Formation 319 of 265 Properties 108, 114, 108, names 61 Precursors 251 98 Data Composition 89, of chondrules 89 and 249 chondrules of 110, System chondrules their 115, of of 267 of Origins of 165 1983chto.conf..359. Subject Devitrification Dhajala Dhajala meteorite systematic suevitic sodium silicon siderophiles oxygen opaque lithophiles isotopes iron in in Zn volatiles pyroxene petrography enrichment element chondrules olivine composition iron concentration INAA Eu EPMA Na/Al FeO minerals metal variations trace relic rare clas.5ification Ni-Fe NAA texture Fe-rich petrogenetic physical Ni-Fe INAA 270,272,273 Tieschitz Sharps 116,271 anomalies content earth © minerals content elements chondrules composition composition 72, Index Lunar olivine assemblages isotopes 92 melts 1, abundance properties 68 1, 111,112 78, 107 66 92,111,112 105, elements 61, 116 6, 56, variations 296, 104, 78,226,227 315 273 experiments 88, properties 83, 226, see 77, 61 315 88, 64, 88, 92, and 68, 116, 315 66 268 3 5, 56, 54, 53, 299 114 223, 235, 223, 96, 74, 214, Dhajala 83 145, 97, 73, 103, 227 95-97 37, 70, Planetary 128, 92 100, 72 80-82 76, 76, 61, 61, 226 0, 103, 101, 114 147 72, 72, 147 61 105, 107, 108, 115, 108, 107, 105, 77 61 77 129 74-77, 92, 101 chondrules 74- 243-245, 236, 236, 58 96, 77 Institute 272 116 238 92, 97, 262, 101, 114,271 • 112, 269, 116 Provided by Dynamic Dust Droplet Dusty Electron spherule chondrule composition chondrule chondrule dendrite lead/uranium see silicate spherule structure formation chemistry crystallization dendrite cooling chondrule cooling composition chondrule chondrule isotopes in refractory poikilitic porphyritic poikilitic formation in texture refractory mineral volatilization microporphyritic volatilization refractory microporphyritic Na/ silica-bearing ALHA the 217 217 poikilitic Manych aggregates also inclusions Al NASA chondrules probe crystallization liquids ratios 77015 rates rates composition Melt widths widths formation formation texture texture 123 elements chondrules chondrules 26, formation analogs texture formation analogs texture 26 texture Astrophysics chondrules 26 26, 166, microanalysis 166, droplet chondrules 29 ratio chondrules 124, 124, 125-127, 125-127, 128 128 166, 35 219 166 219 chondrules chondrules 124, 124, 167 218 217 126, 126, 125, 125, 167 122 122 218 125, 125, chondrules 26 29 experiments 122-125, 125 167 125 122-125, 128 128 131 131 127 127 129,131,217 129, 214, Data 129 129 231 (EPMA) 93 131, 215 128 128 System 127, 127, 217 131, 131, 363 1983chto.conf..359. Enstatite Equilibrated Equilibrated Electric 364 ages chemistry isotopes internal physical petrology formation formation apparatus ages composition internal Tieschitz INAA EPMA minor metallic temperature metastable uranium-lead bubble bulk petrography NAA LL Semarkona ordinary carbonaceous thin Allende UOC uranium-lead L CO3 Chainpur CV3 EOC H Krymka Bjurbole Bishunpur Allende chondrite chondrite 94 chondrite © sections composition chondrite discharge chondrite chondrules chondrules elements 248 248 chondrites Lunar formation 94 isochrons isochrons iron chondrules characteristics 63, chondrules chondrite chondrules chondrules 63, chondrules 279 64, ordinary L of of chondrules liquid 63, 63, 64, 63, chondrules 280 chondrules chondrites of 94 chondrules chondrules spherules 94 chondrules dating dating 94 and chondrite 94 63, 93 2 formation chondrules 64 experiments chondrules experiments 271 94 Planetary 94 chondrules chondrite 3, 94 94 280 93 248 248 93 5 93 248 93 248 93 93 93 chondrules 279, 63, 93 94 93, 279 94 4 64 94 94 chondrules 94 280 Institute 2 92, 93, 92, 93, 92, 112 • Provided by the Formation Fluid Extinction Equilibrated Estacada FSN Ferromagnesian Faith aerodynamic accretion origin iron texture vaporization parent parent siderophiles heating fractionation formation components chondrule chemistry interstellar internal in in granular texture visible mineralogy ultraviolet bulk bulk potassium-argon petrographic sample formation excentroradial chondrule oxygen modal mineralogy microporphyritic redox porosity chondrule C Allende spheres drop meteorite NASA chondrites composition chemistry state 180, materials abundance wavelengths melts meteorite analysis isotopes isochrons 185 of of chondrules of 185 195-197 184 ordinary ages properties vesicles wavelengths 196 dust starlight chondrules 5, chondrules Astrophysics 184 185 181, 195 12 37 classification 195 heating 185 195-197 6, chondrules 180, 27 Chondrules 185 180 180 162, 165, 162, 196 dating 251 184, 195 28 62 195-197 195 180 184 196 chondrites 71 251 196, 322, 323, 322, 27, 182, 185 62 10-22 62, 319 28 27, 197 251 Data 169 183 195-197 and 112, 28 (EOC's) 325 System their 113, 147 Origins 1983chto.conf..359.
Subject
automorphism aggregation
chemistry collisions composition
condensation
cooling crystallization
decomposition differentiation devitrification
disk diffusion
dynamic electric
equilibration evaporation fractionation experiments friction fusion heating impact
in in in in in
incomplete in
kinetic melting
metal models nucleation
271
110, 168,207,243-245,309,310,312 235,238,240,309 191,
217
280,282
262-268,273,274,281,282,296,315 168, 162,
Sharps Allende C Tieschitz
type UOC's 274,282
115,123,129,146,176,208,209,262,273, 262,263,308-315
models
©
chondrites Index
193,212,220,223,282 Lunar 114
heating
factors discharge
3
26,
6,
crystallization 53-58,122-125,127-131,162,188-
108,
53-58,
chondrites
53,
10, 7
176,188,220,262,263,269,270,
90,
101,
116,
melting 296
281
41,
171,
163
41,
102 90,
292,
104,
22, 163,
54, and 192,
1-8,
6,
109,
89, 109,
235,239,241,309 3, 3,
162,
81,
180
162
130,
145, 1-6,
7, 108,122,130,145,220 122, 0, 103, 102,
176
61,
109
88, 7
4,
293
Planetary 296 106-108,
212
0, 103, 100, 22,
243-245
84 110
82,
130,
176
83, 8,
4,15 158, 155, 145,
8, 211,
149
108-110,
264, 267, 264, 130
53,
2, 6, 6, 191, 164, 163, 128, 102
88-91, 88,
2-2, 129-131, 122-127,
188-193,
212,
7 58, 57, 235,
181,182
100-103,
Institute
0, 1, 116, 115, 104,
218,
116, 270 314
103, 110,103,
130,
208, 159,
219
162,
•
106,
279,
162,
220, Provided
111,
176,
by
Formation Formation
Forsterite
Glass
Gnadenfrei
Goodland
Grain
oxidation partial partial phase precursors
pressure radiative secondary reduction shock
spattering temperature
texture thermal vaporization
volatilimtion volatiles
volcanism the bubbles melting in temperature composition vesicles in
SEM formation iron
water melting
porosity
growth norite formation
size turbulent
220,267,279,282 106,108,109,
131,159,165,
180
chondrules
led 149 Allende
chondrules
NASA
aggregates
oxide
relations
evaporation melting
studies
loss
284
mineralogy
22,243-245,312
chondrules
conditions
heat of
of
chondrules
90,
of
223 meteorite 191, 281 origin
281
0, 103, 101, 284
129
disk 211,243-245
by
depletion spherules inclusions 180-185,296,311,315 Astrophysics
180-185
22,
chondrules
262,
122
192
288-293
transfer
impact 3,
281
104,
192
149
0, 104, 103,
models 149
42, 217,220 281
235,
14,
115-117,211,212,215,218-
188-192,219,235,243-245 263, 272, 263,
208,
53,
106-108, 15,
180,
279, 280, 279,
31,
168
239-241
192
211 55,
192
53-57,
54,
235,
284-287
220,
319 183-185
Data
57
274
88-90,
236,
312
282
114,
107,
System
240
101,
5, 166, 159,
110,
103,
365 130, 1983chto.conf..359. Guarena Granular Grant Guidder 366 H H H3 H3 cooling composition isotopic formation chondrule chondrule internal internal potassium-argon average rubidium-st!ontium density composition chemistry chondrite isotopic sphericity spherule size formation electron analysis composition oxides composition chondrites iron chondrules EPMA texture bulk petrography plessite petrography parent NAA systematic enrichment FeO metal mineralogy chondrite chondrites meteorite © concentration composition 79 content meteorite Lunar meteorite chondrules bodies 206 grains rates 94 isochrons isochrons closure properties dilution of microprobe 206 abundance 61, 162, 93, chondrules ages ages variations chondrules chondrules 61, 94 176 162 see. 79 94 61, 162 and 94 44, 1 70, 72, 70, 205, 127 71, 127 72 79 84 172 172 H dating 249 251 296 176 162 Planetary 94 162 chondrite 206 231 251 dating 249 61 72 77, 17 296 61 82 48, 251 78 296 249 chondrules Institute • Provided by Hallingeberg Hallingeberg Hamlet Hamlet Icy I Impact Intercrystalline Inclusions Impact Interstellar Interstellar spheres silica-bearing composition classification composition classification chondrules iron magmatic petrogenetic physical bubbles petrogenetic experiments explosive chondrule as graphite in INAA target texture texture heating physical origins aggregate velocity extinct condensation classification chondrule chemistry astration Formation the melt grain interstellar energy NASA concentration droplet experiments models chondrules meteorite diameters mantles radioactives in experiments properties properties dust 69 medium 12 223 of 66 66 34 sources reaction formation crystallization formation chondrules formation 27, meteorite spherules of Astrophysics dust 27, properties properties chondrules see chondrules medium pores inclusions 28 Chondrules 193 70, 69, 66 66 27 31-33 30, 34, 30, Hallingeberg 193 71, 74- 32, 34 34 72 80-82 80-82 see 28-30 74-77 77 33 35 281, 281 35 192, 35 34 61 61 Data 223 Dusty 231 231 282 and 193 chondrules System their inclusions, Origins 1983chto.conf..359. Subject Interstitial Iron-magnesium Iron Iodine-xenon Kemouve Kemouve isotopic icy SUNOCON spatial sticking steady stardust sputtering formation element evaporation free depletion closure classification isochrons iodine molecular models Allende Allegan nucleosynthesis neutral phases particle Chainpur warm refractory ultraviolet metamorphic melting enrichment composition iron formation chondrules ages internal metallic microprobe nickel spherules mantles © decay nickel Index Lunar media content state effects 251 HI times size particles coefficients chondrules meteorite fractionation component matrix composition isochrons matrix 252, minerals 28, 29, in matrix 129 elements clouds flux model clouds chronometer grains 252, 32, studies chondrules 183 31 162 see component 31 27, 28, 27, 255 30-33 and proces.ses 1 27, 182 chondrules 184 173 26 28, 73 252, 252 33 Kemouve 253 162 34 257 257 30, 28 Planetary 29, 257 28-31 26 173, 28-31 1 251 253 72 34 27, 31 172, 33 33 30 184 29 174 28, 257 184 251, 1 30, 32, 30, chondrules 73 31 Institute 254, 33 256 • Provided by the Krymka Kinetic L Kramer L LL LL3 L3 chondrite chondrites origin plessite chemical thermal texture potassium-argon diffusion transformations reaction nucleation fissures formation chemistry EPMA norite porosity sphericity chondrules composition isotopic EPMA multivariate metamorphism metal physical petrography bulk NAA systematic spherule enrichment composition chemistry oxygen oxides composition iron matrix parent chondrite chondrite chondrites NASA composition factors Creek phases of chondrules mineralogy 72,311 bodies composition isotopes 94 effects dilution rates properties 206 metal abundance 172 reactions 93 172-175 325 94 chondrules 319 Astrophysics variations chondrules 1, chondrules 94 79 94 84 chondrules analysis 1-3, see 2, 61 94 70, 206 71, 72, 71, 84 235 3 84 7 dating 174 174 L 84 5, 1 37 72, 77, 72, 94 chondrite 71 168 6 1 61, 167 1 7 77, 84 82 61 82 72, Data 251 78, 78, 79, chondrules 84, 83, System 81, 314 84 84 367 1983chto.conf..359. LL Manych 368 Lunar Melt Manych formation isotopic EPMA metal sphericity agglutinate chondrules glasses iron multivariate metamorphism physical petrography bulk NAA sample sample systematic spherule enrichment formation droplet crystalfuation chondrules chondrule composition composition composition clasts glass texture parent formation origins ordinary description cooling in mineralogy EPMA mineralogy microporphyritic chondrites Murchison droplet regolith © concentration composition phases chondrules meteorite Lunar bodies 226,228,229, 76535 chondrules analysis 14318 170 94 history dilution properties abundance chondrites 167 223 94 264 abundance chondrules variations abundance 79 84 223 analysis 162, see see 225,226,229 61 93, 223,226,227 and 94 93, 224, 124 84 84 223-228 LL 124 257 264 Manych 229, 84 chondrules 166 167, 224 94 6, 166, 162, Planetary 71 226-230 chondrite 72 61, 166, 223 17 230 84 168 61 264,272 265 72, chondrules 167 79, 167 chondrules Institute 166, 81, 167 84 • Provided by Metastable Metal Mew-Madaras Metal Microporphyritic Mew-Madaras Multivariate Moro see SEM size silica petrography accretion comminution ages condensation texture volatile/ polished formation crystalfuation composition internal silicates formation chondrules origin crystallization cooling in mineralogy mesostasis potassium-argon Semarkona silicate chondrule texture morphology melting petrography equilibration Chainpur Fe/Mn thermal metamorphism the Manych also spherules do Mound distribution NASA analysis 251 Roccio 229, liquids rates isochrons ratio Droplet 211 history mass liquids section 229, 2, 123, 122, 219 4 chondrules analysis temperature composition Ca/ 1, Astrophysics Silicate chondrules 230 122,166,219 chondrules meteorite see 166, 168 relationships 3 223, 230 126 Chondrules 126, 126 meteorite Al 127 chondrules 50 311 182, 1-4 1, 224 1, 128, chondrules 166 dating Mew-Madaras 50 127 224 ratio 225, 3 167 4 229 125, (MMS) 129, 251 183 219 230 110 126 2, 166, 167 66 110 251 Data 4 spheres and 106 167, System chondrules their 211 18 Origins 1983chto.conf..359. Murchison Subject Murchison Nadiabondi Neutron Ochansk chondrules chondrule internal SiO sample fusion evaporation metal melt UOC rubidium-strontium glass spherule silica cooling composition ages analysis description texture temperature mineralogy polished phase petrography metal chondrule carbonaceous LL internal L potassium-argon CV3 ordinary EOC UOC element composition classification CO3 INAA H chondrite chondrite chondrite 2 © droplet in chondrite chondrite chondrules chondrules chondrules relations experiments activation Index 249 228, chondrules Lunar 229, analysis chondrules 227 226, isochrons isochrons abundance meteorite chondrules sections abundance 68 chondrite 229-231 227,229-233 meteorite 225,226,228,229 population ages 229 experiments chondrules 230, chondrules chondrules see 231 225, 226, 225, 226, chondrules chondrite 232 229 and 227, 68, 66 chondrules chondrules Murchison analysis dating 241 251 232 184 227, 74- 225, 94 61 chondrules Planetary 94 229-233, 249 dating 251 44 181, 223 70 16 77 229, 224 233 230 chondrules (NAA) 94 251 223, 94 182 181, 94 chondrules 233 249 94 94 241 Institute 224 182 92, 112 9'2, • 94 Provided by Ochansk Olivenza Ordinary chondrite Ordinary equilibration chondrules classification petrogenetic bulk chondrule internal rubidium-strontium physical potassium-argon texture microcraters bulk silicates siderophiles feldspar formation accretion evaporation chalcophile oxygen composition grains lithophiles lithophiles EPMA petrology formation chondrules oxygen origin opsto 89, composition classification INAA metallic matrix volatile/mass metal noritic relic refractories the 88 chondrules NASA analysis material ratios meteorite meteorite component bulk chondrites isotopes isotopes isochrons 103 chondrules 177 174, properties 92, 66 93,112 162 162 ages Astrophysics 176 92 elements ratios 100, 115, 100, 162, properties 96 98, 112 see 99 see of 98, 175 relationships 98, 104 266 95-98, 50 44, 89 197 chondrules 116 Ochansk dating Ordinary 249, chondrules 112 176, 99 37, 3 7 96, 50 249, dating 99 16 79-82 176 91 40, 250 100, 165 177 191 99 61 250 250 114 Data chondrules chondrite 102, 249 106 48, System 107, 49 111-113, 369 1983chto.conf..359. Ordinary 370 Orgueil Orgueil Origin Parnallee Peace chemistry see secondary formation oxygen chondrule internal precursor petrology Na Rb-Sr relic spherule gaseous spherule element see asteroids aggregates dust in parent chondrule internal EPMA thermal temperature metastable relic refractory-rich bulk precursors porosity planetesimals chondrule Rb-Sr rare rubidium-strontium 116,145,262,263,273,274,279,280,308 271-273,308,309,319,328 271, 2 nebula also O also River © earth of minerals material chemistry chondrules meteorite content dating 243-245, Lunar model (type bodies chondrules chondrules isotopes 273 isochrons source Ordinary isochrons abundance history Ordinary components abundance abundance 93 material meteorite elements ages origin ages ages liquids 108 211 211 211 2, of 26, 176 3) age and 3, objects 249 formation 211 chondrites 197 4, 147, 145, 219 6, 188, 168, 27 319, 249 1-3, 93 249 249 6-8, 174, chondrites 220 (type 211 Planetary 73 249 dating 1 220 10, 93 70, 328 6-8, 16 16 175 53, 328 3) 91 62, 71 158-160, 191-193, chondrites 88, 102, 4 81, 249 Institute 0, 111, 100, 112, 117, 112, 243-245 176, 262-269, • 262- 114- 195 Provided by the Peetz Petrography Piancaldoli Poikiliticchondrules Piancaldoli Porphyritic internal chondrule internal rubidium-strontium potassium-argon C CO3 EOC formation CV3 crystallization composition L LL H UOC silica EPMA matrix phase spheroids texture mineralogy cooling composition dusty photomicrographs formation in in petrography ages clas.5ification formation dusty cooling composition relic in in in chondrite chondrite chondrite ALH ALH ALHA ALHA ALHA meteorite chondrite NASA chondrite minerals chondrite chondrules chondrules inclusions inclusions relations 251 235, isochrons isochrons rates rates 77278 77015 240, chondrules meteorite chondrules 235, 237, 235, 237,238 ages 77015 77299 77278 Astrophysics 237-239 chondrules chondrules 239,240 chondrules 238, 217 218 chondrules 241 241 Chondrules 235, 218 127, 95-97, chondrules 95 127, 219 chondrules 215-21 241 dating 251 235, 215-217 215-217 240 215, 213, 94 94 239, 213 214 213, 239, dating 251 249 214-216, 217 236 237, 100,113,214 217 214 7 241 214 241 94 251 94 Data 94 94 239-241 and 94 249 94 218 System their Origins
1983chto.conf..359.
Precursors Precursors
Pre-solar Pre-solar
Potassium-argon Potassium-argon
Subject Subject
granular granular
loading loading
interstellar interstellar
feldspathic feldspathic homogeneous homogeneous
heterogeneous heterogeneous
equihbration equihbration
heterogeneous heterogeneous
element element
temperature temperature dust dust
distillation distillation
dark dark
composition composition Ca/ Ca/
grains grains
gas gas
surface surface
sticking sticking
Weidenschilling Weidenschilling
turbulence turbulence
radial radial
Lin Lin
particles particles free free
drift drift
chemistry chemistry
origin origin
apparent apparent
recoil recoil
siderophiles siderophiles
matrix matrix
models models
volatile/mass volatile/mass
texture texture
relic relic
refractory refractory
precursors precursors
lithophiles lithophiles petrography petrography
mineralogy mineralogy incomplete incomplete
microprobe microprobe
INAA INAA
drag drag
Al Al
model model
decay decay
© ©
aggregates aggregates
velocity velocity
minerals minerals
matrices matrices
effects effects
gas gas
Index Index
disk disk
data data
Lunar Lunar
ratio ratio
ages ages
density density
coefficient coefficient
212 212
ratios ratios
284-293 284-293
of of
rock rock
ages ages
95 95
286-289, 286-289,
111 111
motion motion
elements elements
288-290, 288-290,
289, 289,
grains grains
model model
chondrules chondrules
materials materials
melting melting
26, 26,
data data
218 218
91 91
285, 286, 286, 285,
96 96
284, 285, 285, 284,
95, 95,
251, 251,
113 113
relationships relationships
95, 95,
nebular nebular
285 285
111 111
97 97
igneous igneous
chronometer chronometer
nebular nebular 91 91
and and
250, 250,
91 91
287, 287,
290 290
308 308
212-214, 212-214,
285 285
171 171
258 258
113 113
model model
286 286
27 27
97 97
96 96
258 258
113 113
Planetary Planetary
110 110
26 26
291,293 291,293
293 293
251, 251,
291 291
292, 292,
291, 291,
95, 95,
218 218
material material
114 114
material material
material material
290 290
287-293 287-293
101, 103, 103, 101,
258 258
285,286,289 285,286,289
97 97
293 293
292 292
218 218
105 105
Institute Institute
108 108
108, 108,
108, 108,
117 117
109 109
109 109
• •
Provided Provided
by by
Properties Properties
Prolate Prolate
joints joints
SEM SEM
texture texture
rim rim
physical physical oxidized oxidized fractionated fractionated
porosity porosity
polished polished
petrology petrology
petrography petrography
number number
morphology morphology
mineralogy mineralogy
class class
microcraters microcraters
isotopes isotopes ages ages
inclusions inclusions
INAA INAA
in in
fissures fissures
formation formation
equilibration equilibration
density density
EPMA EPMA
composition composition
chemistry chemistry
metamorphism metamorphism
matrix matrix
partitioning partitioning
texture texture Piancaldoli Piancaldoli
composition composition
matrix matrix silicates silicates
EPMA EPMA
oxygen oxygen
origin origin
nebular nebular
metal/ metal/
matrix matrix
the the
217,225,262,264,267 217,225,262,264,267
123, 123,
Tieschitz Tieschitz
104,105,116,163,219,271,303,315 104,105,116,163,219,271,303,315
properties properties
NASA NASA
silica silica
266, 266,
sulfide sulfide
65, 66, 66, 65,
material material
65 65
319, 320, 320, 319,
isotopes isotopes
of of
density density
130, 145, 145, 130, materials materials
112 112
.65 .65
sections sections
65 65
iron iron
262,270 262,270
238 238
properties properties
236 236
61,63, 61,63,
1, 1,
320, 321, 321, 320,
237, 237,
110 110
65, 65,
319-321, 319-321,
chondrules chondrules
spheroids spheroids
267 267
53, 53,
Astrophysics Astrophysics
5, 5,
l, l,
145 145
liquids liquids
235,236,239 235,236,239
237 237
1, 1,
297 297
111 111
93, 93,
65, 65,
5 5
3, 3,
239 239
265, 266, 266, 265,
168 168
236,237,239,240 236,237,239,240
8, 8,
1, 1,
78, 78,
243-245 243-245
54, 54,
110 110
3, 3,
267, 267,
79,80,82 79,80,82
5, 5,
5, 5,
78 78
54, 54,
57 57
325 325
109, 109,
130, 130,
93 93
114 114
92 92
79 79
65 65
168 168
323, 323,
8, 8,
7, 7,
163, 165, 165, 163,
ll ll
324, 325, 325, 324,
270 270
271 271
56, 56,
55, 55,
93, 93,
5 5
15, 15,
110 110
192, 192,
62, 62,
325 325
319, 321, 321, 319,
66, 66,
61, 61,
65, 65,
168 168
Data Data
90, 90,
211 211
92, 95, 97, 97, 95, 92,
67, 67,
63, 63,
328 328
183, 183,
183 183
System System
225 225
67, 67,
326 326
211, 212, 212, 211,
79-84, 79-84,
115, 115, 371 371 1983chto.conf..359. Radial Pyroxene Refractory 372 Renazz Relic-bearing Refractory Richardton Richardton abundance SEM formation cooling composition in volatiles vesicles thermal classification lithophiles texture micrographs siderophiles formation characteristics composition dynamic cooling composition in in INAA texture texture mineralogy refractory petrography heating microprobe silicate chondrules ages cadmium bulk precursors EPMA Rb-Sr rare Allende C ordinary © pyroxene earth chondrites chemistry meteorite studies Lunar 248, model data excentroradial chondrules temperatures rates chondrules inclusions crystallization experiments 95 122, chondrules meteorite 128 93 279-282, 124 53, isotopes elements elements 3, chondrules chondrites 249 data 91 122, 96 219 149 6 214 see 95, age 55, 113 95, and 97 chondrules 125 95-97, 149, 128 151 95 149, 128 90, Richardton 93 124 97 57, 90, 96 Planetary 113 151 319-324 151 91 73 183 95, 93 91 130 chondrules 100, 219 91 97 113 chondrules Institute 128 • Provided by Semarkona Semarkona Saratov Rubidium-strontium Saratov S (deep siderophiles alkalies factor classification composition Eu EPMA texture rare precursor physical petrology see NAA ages chondrule internal iron refractory potassium-argon petrogenetic chondrules classification texture petrogenetic physical composition composition grains internal INAA matrix mass uranium-lead optical thin texture mineralogy nucleation rubidium-strontium the 110,111 anomalies also earth NASA sections concentration spectrometer chondrules sea) meteorite analysis 250, ages features 92 isochrons isochrons Semarkona 21 properties properties 69 66 chondrules 66 93 meteorite 19-21 106 materials elements spheres abundance 92 251 Astrophysics 110 properties properties 21 see 21 258 dating 110 69, 71, 21 66 19 66 Chondrules 114 111 Saratov dating 20, chronometer 70, 72, technique 250, 248, dating 12, chondrules 72 80-82 79-82 114 21 111 74-77 248 74-77, 264 5 16, 15, 61 61 251 249 chondrules 250, Data 249 and 251 249 100, 18 System 248, their 106, 249 Origins 107, 1983chto.conf..359. Subject Sharps Seres Sharps Shaw Silica-bearing chondrule glass internal potassium-argon enrichment composition iron mineralogy rim mesostasis alteration bulk OI-Al-rich silica-bearing fragment formation enrichment chondrule devitrification classification description cnondrules internal iron in redox potassium-argon classification EPMA texture rim mineral mesostasis matrix matrix K/Na Piancaldoli volatiles mineralogy 312,315 302,304,308,312 Tieschitz meteorite meteorite composition © composition chondrules content meteorite composition composition Index 296,301,308,310,314,315 relationships Lunar ratio composition isochrons isochrons composition 301 95 296, composition ages ages 90, composition composition chondrules chondrules 316 meteorite 162 see 297 307,308,315 307, 312 95 chondrules 312, 163 and 91 296, 314, 298 95 314, 235 dating Sharps dating 251 251 308, 304 305, Planetary 316 315 315 310 251 251 315 299-302, 314 296, 299 235 315 312 chondrules 306, 296, 309, 251 305 251 305, 231 308 Institute 310 298-300, 306, 314 308-310, • 301, Provided by the Silicate Solar Soko-Banja Soko-Banja Supernovae Spatter St. as formation enrichment fusion evaporation composition classification condensation chondrules ages depletion internal grain texture physical sources spatter evolution chemistry chondrule oxygen isotopes ionization internal INAA Rb-Sr texture temperature model mineralogy mineralogy major Allende rubidium-strontium reduction petrogenetic potassium-argon precursor memories Severin chondrule furnace NASA spherules spheres sire elements 249 model studies spherules anomalies isochrons isochrons 182 properties 69 meteorite 66 184, chondrules meteorite exhalations 185 distribution (of composition 182 temperature 134,135, ages experiments 185 Astrophysics 139, 134-137, 140-142 140 properties analogs see age iron) 140 184, 183,185 182 185 182 69, 66 140, 135, dating 140 Soko-Banja 251 183 71, 185 185 73 249 dating 251 141 137-142 142 79-82 182 136 74-77 139-142 122 185 184 184 61 251 180-183 Data 249 chondrules System 373 1983chto.conf..359. Tieschitz Tennasilm 374 Tieschitz s-nuclei zoning titanium r-nuclei progenitor p-nuclei formation enrichment composition classification ages abundance TEM dendrites iron physical structure Ca-Al-rich olivine EPMA texture mineralogy metals rims composition classification texture physical enrichment fragments equilibration classification clasts chondrules cadmium alteration accretion description INAA EPMA bulk 296,299,300-302,303, 313, 313 content © composition studies 249 chondrules 162,164, meteorite Lunar composition 315 163, chondrules 137,138,140,142 properties properties 163 69 66, 66 93 138 138, 296, temperature 138, isotopes stars 138 164 163, 316 296-300, 162 306-308 169 313 163 see 297 307, 308, 307, 163,168,307,308,315 312 296, and 141 69, 68, 298, 66, 139, 66 314, 44 164 164 165,268,301-304 Tieschitz 135-137, 70, 313 70, Planetary 301, 311 313, 141, 315 163, 73 80-82, 79-82 74, 74- 302-304, 72, 315 176 308, 315 297, 142 75 77 chondrules 139 74-77, 308,310,312, 303, 310, 304 Institute 308,310,312, 310 315 6, 168, 164, • Provided by Tilton Unequilibrated Unequilibrated ordinary Na/K iron gas petrogenetic internal Rb-Sr texture rubidium-strontium rim redox mineral metal mesostasis matrix chondrule internal formation origin crystallites lithophiles isotopes uranium-lead petrogenesis alkalies ages oxygen cooling composition classification composition chondrule chondrule internal INAA Eu EPMA Rb/Sr multivariate mineral metamorphism metals NAA the 305,307,311-314 84, anomalies in composition meteorite NASA content relationships chondrules 94,105, isochron ratios 250 dating isotopes 94 171, in rate composition isochrons isochrons composition isochrons 38 63, 83, 6, 6, 6, 170, 169, 167, 163, 171 63, 38, ages ages composition chondrules composition Astrophysics 83, properties analysis 84 64, 232 106 chondrites 175 94 dating 41, 232 72, 61, 311, Chondrules 123 3 64, 63, 207-209 113,205-209,269 age 249 114 84 68 248 249 73, 64, 301, 311, 301, 37, 81 305, 312, 1 dating 249 248 249 70 314 84 169 73, 38, chondrite chondrules 248 299 61, 66-68, 232 311 101 316 61 88, 305 94, 82, Data 66, and 313-315 249 90 208 207 67, 72, 296, System their 84 76- 301, 78, Origins 304, 82- 1983chto.conf..359. Uranium-lead Unshocked Unequilibrated Subject Vigarano Weston systematic sphericity sample siderophiles sample fragments enrichment composition contamination concordia ages classification chondrules iron internal mineralogy matrix texture redox rare plessite petrogenetic parent precursors physical phase petrology petrography Na internal texture volatiles composition inclusions Allende relic physical classification texture INAA chondrite 2 0 © earth content material chondrules composition state enrichment Index 250 bodies Lunar meteorite analysis analysis grains isochrons isochrons properties properties 68 98, chondrites 96 41, 66 elements 247 plots 105, variations 63, chronometer 84 296, 159 chondrules 42, properties 296 ordinary 232 see 209 62, 61 106 94 and 72, 62, 68, 296 66 64 197 83, 106 172 82, 248 Unequilibrated 298 172 248 62 66 296 71, 70, Planetary 44 84 250 250 168 232 61-64, 73, 80-82 7 chondrites 96, 74- 4- 61 78 62 77, 77 168 67, 79, 67, 114 Institute ordinary 84 • Provided by Weston equilibration bulk petrogenetic the NASA analysis meteorite Astrophysics properties of 44 chondrules 61 Data 48, System 49 375