Apollo 15 Lunar Sample Catalog Part 3 15475-15698

521 Pages·2002·16.6 MB·English

CATALOOGF
APOLL1O5R OCKS
Par3t. 1 5475-15698
CuratorBiraaln cPhu blication
72
JSC
20787
October
1985
·. ..
GRAHAM RYDER
(Lunaarn dP lanetIanrsyt itute;
NorthrSoepr vicIensc,. )
N/\5/\
NatioAnearlo nauatnidc s
SpacAed mrnistratron
LyndoBn.J ohnsSopna cCee nter
HoustToenx.a s
CATALOOGF
APOLL1O5R OCKS
Par3t.1 5475--15698
GRAHAM RYDER
(LuannaPdrl anIentsatriyt ute;
NortSherrovpIi ncce.s),
October1 985
i
CATALOOGF A POLOL 15R OCKS
CONTTENS:
PART1 . Intruocdtio,n misisono vevriwe,s apmling
sites, and inventoroyf
sapmlse.
1501-51 5299
PART2 . 1530-61 5468
PART3 . 1547-51 5698
References
ii
15475
15745 PORPYHRITICSU :BHOIPTIQCU ARZT-NORMAITVE ST. 44 06.8
g
MAREB ASALT
INTRODIUOCN:T 1547i5s cao arse-grapiigneeodn itoer-pphiytric
mareb asal(tFi g. 1)w itha radiattoes uboipthicgr onudmsas. It
isa na veragceo-pmoistiomne mebr otfh eq uartz-mnaotrivmea re
basalstu it.e Iti sl ightb rown wgirtehe tno b rowpnr imsatic
pyroxepnhee nocsrty,s whitteo t ranlsucenptl gaioclalsateh sa nd
plate,s andc onscpuioussm allv ug.s It itso ug,h blocyk with
subaunlgarc orne,r asndh asz app itso ns omes urfeasc.
1547w5a sc olelcteadb ou2t 8m south-southoefat shetr imc rest
of DuCnrea t,e r fae wc entimetersr ofcrko1sm5 47a6n d1 5945.
The miemdiatseu rfahcaed mao deractoev eorf f ramgents. 15475
wasd ust-vceorebdu tn otf illeteodr b urie.d Itso rinetatiwoans
documente.d
779
15475
Figl.b
Fig.
lc
Figure1 . a)M acrsocoipcv iwe ofo riginpailce eso f1 5745,
fittedt ogeetrh. S-7417-935
b)P iec,e 1, showinvugg gcy hartaecr. S-71-47021
c)M ains awp icee,s priotro s pilttintgh es lba.
S-72-33024
780
15475
Fig2.a
c
Fig.
2b
781
15475
Fig2.c
Figure2 . Photmoicorgraphosf 1 547.5 a,bw,i dthasb out 6
mm .
c,w idtahb out 3 a,ctr ansmitltigehdt. b,
mm .
crsosedp olarri.z ea,bp,i geonipthee noycsrt,s
showintgwi ninn,g zoning, andi nclusiohn rriimc;s and
groundsms,a withp lgaiocalsel aths, opaqupeh aess, and
triydmite( T.) c)g ruondmsas, showinrga diate
clustearnsd s ubpohitiacr ea.s Lathast b otto(mT )
aret riydmite.
PETROLO:G 1Y547i5s a coarse-grapionprehdy ritbiacs al(tF gis.
1,2 ). Pigeonipthee nocryasrtest winneadn dz onedt oa ugi;t e
plgaioclasies t hes econmdo stc onsipcuousm inearl. A seuqence
ofo xidefsr omc hromittoeu lvoisnpelt oi lmenities p rese,n atnd
the groausnsdc montianst riydmite,c rsitoablit,e pyroxrfreoi,t e
andm inobrr owrn eisduagll as.s Fe-metaanld t roiiltea re
spar.s eThep igeonitaerse a sm ucha s1 .5e ml ong; mosta re
abou5t Theya ren ote venldyi stbruite,d somet hins ections
mm .
cotnaiinngp erhap7s5 %p yroxe,n oetherass l ittlea s5 5%. Modes
arel istedi n bTlae1 ands how svoamer iiaotn.s Theg roundsmsa
texturies r adiabtuet t rnasitniaolt os uboipthic,a ccorditnog
Lofgrena le. t( 1975.)
782
15475
TABLE1 5457-1. Published mosd e
(1 ) (2) (3 )
Cpx 75 64
Plag 20 24
Ilm 4 1.2
Ulvo <1 1.2
Trid 0.5 0 . 6 0.5
Crist tr.
Glass tr. 1.7
Fe-Ni <0. 1 tr.
Trail <0. 1 tr.
Vugs 6.4
Chromite 0.5
Olviine 0
(1 ) Lunars ampleI nformation
CataloAgp ollo1 5 (1971)
(2) Rhodes andH ubbar(d 197)3
(3)M ason( 197)2
Browne t al. (197,2 1937)t abulattehde c ompositionso ft wo
evolvepdy rxoenes.T heyf oundp yroxenceo mpositiosn to be
similarto those in 1507e6x cepfto ra greatevro lmue of
pigeonictoer se. Theyn otedt hep resenceo fw hitlockiatned
tranuqililtyite, witha naleyss; thew hitlockihtaes highs ro
(10.1%)b utE u ibse lwo deteciton. Theyr eportead
titanochromaintael ysiasn,d n otedt hea besnceo fo lviin.e
Takedeat al. (1975)re porteodn a studyo fp yroexnesu sing
opticaaln dx -rayd iffracti(osni nglcer ytsal)t echnuieqs.T hey
tanadbp urloa�vt� tedhercdee epl yldrc,> �xmeenn.eas n�sao,lnr eyessla (t��n6vuWeoo r�.s�n ettoa ��tno81n.s2W,o2a 8.n5d,)s pace
groupd ata. No exosluitonw asv isibleo ptiacll,y buta n augite
grainh ade xsolveda bout4 0%p igeonite 2.87°).
(6�=
Weeks( 197)2 produceedle ctromna gnetirces pones spectraf ort wo
pyroxenaen da 11pl+a gp yroxnee11s eparatse. NeitheFre S+n or
Ti+S wafso undi nt hep yroxnees buFte S+w as observedi nt he
plagioacsels. Plagciolaess1 em fromt het opo ft her ocka nd8
em fromt he tohpa dt hes ameF e8+ concentiroant, henFcee8+ is
nota reuslto fr adiatidoanm ag.e Bella ndM ao( 197,2 1973) also
founde videncfeo rF es+ inp lagioacsel andr eportetdo tali ron
oxide( asF eO) of0 .66%,w ithn o systematicz onin.g They
suggestedt hatt heF e8+ waasn alteratiporno duc.t
783
15475
ElG orsey eatl . (1976)re porteodn spinelt extureasn d
chmeistry, withoutta bulationrg d iagarmmings pecificd at.a
15745c ontaicnosr rodeadn d rouncdherdo mitceo rse to
Cr-ulsvpoinel( asd o otherc oasre basalt)s ,i ndiciantg
conisdearbler eacti.o nThez onintgr ensd (their" thirdt"r end)
froml owF eO(/FeO+ MgO)c orse (0.0 8to 0.85)t om orei ron-rich
rimsw,i ths lightliyn creiansgT i/(Ti+ Cr + Al) anda decresae
inv , isi ndicatiovfec rytsalliztaionf roma liquid with
contiunoulsy increiansgF eO. Roeddearn dW eible(n91 72)
tabulated analyseso fh igh-S2i m0elti ncluisons( intertsitia,l in
plgaiocalse,a ndi n ilmneit)e,w ithc opmositiosn ranginfgr om
72.8t o 768.%S iO and6 .3 to 7.8K%20 . Thep igeonictoer se are
h
inclusion-ftreeei,rm antlesa re incluison-ri.c hEngelhardt
(1799) noted that ilmneites tartedc rytsallizngi after
plgaiocalses tarted,a nde ndedc rytsallizngi beforpey roxene
ended. sMoan (1792)r eportetdh at ther efracvtei indicse for
tridymiatned c ristobalitien 1547w5e rei denticwailt ht he
corerspondinpgh aseisn 15805.M ason et al. (917)2 found0 .%5
tridymiitnet hem od.e
Cooling Rates:L .T ayloarn dc o-worke(rLs. T ayloarn d
McCallitserl 972,a b;L .T ayloert al. ,1 937)u sed the
partitiogn oifn Zbre tweeinl meniatned u lvsopinelto estimate
cooilngr atesb,a sed one xperimendteatle rminatoifov na riation
of thceo efcfiienwti tht emperarte.u Thel owr atio( Zri n
ilemniter/ Zinu lvsopinle)o f1 .5t o 2( Fig. 3)s uggetss
subsolidus re-equiiblratiotno about8 50C°,l ike someo ther
slowly-coolbeadsa lts.S uchs low cooilngi sc orrelatweidth a
greatearmo unto fr eductioofnu lvsopine,l whichi sh ence
cooilng-ratdee pendernatt hetrh ano xidatisotna-ted epende.n t
FigurL} . zr partiotniingb etweeinl meniatned u lvopsinel( L.
Tayloarn d MaclClitser, l972a.)
784
15475
Lofgreent a l.( 9175), ina compairsno of thet extureo f1 5475
witht hep rdouctso fd ynaimce xperimentparldo ucts( known,
linearc oolinrga tes) inferrea dc rysatlilztaino ratoef less
thanl °C/hfror both thep henocrysatnsdt heg ruondamss, buta
littlef astert han 150581,5 0751,5 07,6 etc. Grvoe andW alker
(1977), in a similarb ut moreq uantitatives tudy, infererd an
earlyc oolinrga teo f 0.50°C/hfrr om thpey roxenen ucleiaotn
2
denisty( 03.jmm) ,a nda lates tagec oolingr ateo f O.l°C/hfrr oa
,.; plgaicolassei zse. Thei ntegratreadt ef rmo pyrxoenep hencoryst
sizei s lesst han0 .5°C/hrT.h ef inaplo sitino of 15745f rmo a
conductivbeou ndariy se stmiatedt ob e 263e m. Thes apmle
appeartso h aveu nderonge a slwo,n earl-inearc oolingr ate
thruoghout itsc rysatllitziano.
On theb asisof thea ugiteex solutino,T akedeat al. (9175)
infreredt hat1 547w5a st hes lwoest-ocoledq uarzt-normativem are
basalotf t hoset heys .tudied,b ecausteh e of2 .87 ° wast he
A{3
laregst. Theyi nferrea df astecro olingr atee arlyi n
crystlaliztaion thanl aetr. Brett on theb asiso f
(197,5 )
limitedd at,a inferrethda t1 547c5o oledw ithian 2 tmh ickf low.
EXPEIRMENTAPLE TROLO:G YMuane ta l. (1974m)e ntinoed
equilibriluiqm,ui d-solid phasee quilbiriao n ar epresentative
sapmle( datap acki nformaiton)o f 15457,u singF a-euqilibri.a
Olviineo r spineils t hel iquidusp haes,b utn os pceifidca taw as
presnete.d
CHEMISTRY: Bulkr ock cmhiecalan alysearse l itsedi nT able2 ,
andt her are-eartahrsep lottedi nF igure4 . Thea nalysaerse
quitec onsitsentc onsiderintgh eg rai-nsizoef threoc k and
demnostratteh at1 547i5s a rathearv ergae-composition Apollo1 5
quarzt-nromativmea reb asal.t Thel argesvta riaiton is inT i02
conten.t Compstno eta l. (9172n)o tedt hatt heixr- ray
fluroescneceR b dataa rec onsisetntlyl owera ndn ot as reliable
ast heiri sotoped iultino Rb dat.a Drozde t al. (197)4 reported
a totalK r abundance4 3.of9x 10-11g jcsm.
Grose t al. andH ertgoen eatl. (9177)er rnoeuoslyr efer
(1976)
to 1547a5s a non-marbea salitn t heir diussscinos and
tabultainos. Ifna c,t allt heire lmeentsh avea bundcaensq uite
typicalo fm areb asal.t s
RADIOGENIICS OTEOSP: Noa geo f crysatllitziano hasb een
determinfeord 15745,b utC ompsotn et al. (9172), and Nyquist et
al. (197,2 1937)a ndW iemsanna ndH ubbard( 1975)re proted
whole-rcokR b-Sri stoopicd ata( Table3 ). Theya rec onsitsent
(adjustinfgo r intelraboratoryb iasw)i thd ipsersion alnog a 3.3
87
b. yi.sc ohrno. Calucltaedi niital Srj68Srf or ageso f abuot
3 . 3to 3 .4ar e withtihner angeo f otherA pollo1 5m areb asal.t s
785