 areas where the outcrop is extensive, where some form of geological map already exists, where there are airphotos at scales of 1:30,000 or larger, and where the gamma-ray survey lines are less than 2.5 km apart

For the Large Hadron Collider (LHC) of the next millennium, a large general-purpose high-energy physics experiment, the ATLAS project, is being designed by a world-wide collaboration. One of its detectors, the ATLAS muon tracking detector, the MDT project, is on the scale of a very large industrial project: the design, the construction and assembly of twelve hundred large muon drift chambers are aimed at producing an exceptional quality in terms of accuracy, material reliability, assembly, and monitoring. This detector, based on the concept of very high mechanical precision required by the physics goals, will use tomography as a quality control platform. An X-ray tomograph prototype, monitored by a set of interferometers, has been developed at CERN to provide high-quality control of the MDT chambers which will be built in the collaborating institutes of the ATLAS project. First results have been obtained on MDT prototypes showing the validity of the X-ray tomograph approach for mechanical control of the detec...

Lunar breccia 67975 is a feldspathic fragmental breccia from North Ray crater, Apollo 16. It contains clasts of alkali gabbronorite and ultra-KREEPy mafic fragment-laden melt breccias, which are unique among Apollo 16 samples. Both are alkali- and iron-rich rocks with moderate to high REE concentrations. They more strongly resemble Apollo 14 gabbronorites and alkali anorthosites and KREEP-rich rocks than they do other Apollo 16 samples. The other clasts in 67975 are the ferroan anorthosites, feldspathic melt rocks, and magnesian granulites, which are typical of other feldspathic fragmental breccias. Examination of bulk and mineral compositions of other breccias and melt rocks suggests that alkali gabbronorite may be a minor component in other North Ray crater breccias and feldspathic melt rocks. This implies that alkali gabbronorite was a fairly early (4.0 b.y.) crustal component in the North Ray crater region

Detection of soft X-rays
areas where the outcrop is extensive, where some form of geological map already exist, where there be airphotos at scales of 1:30,000 or larger, and where the gamma - beam survey lines are less than 2.5 kilometer apart 

 For the Large Hadron Collider (LHC) of the next millennium, a large cosmopolitan - function high - department of energy physics experiment, the ATLAS project, is being designed by a world - broad collaboration. One of its detectors, the ATLAS muon tracking detector, the MDT project, is on the scale of a very large industrial undertaking: the design, the construction and assembly of twelve hundred big muon drift chambers are aimed at grow an exceptional timbre in terms of accuracy, fabric reliability, assembly, and monitoring. This detector, based on the concept of very high mechanical preciseness required by the physics goals, will use tomography as a quality control platform. An X - ray tomograph prototype, monitored by a set of interferometers, has been developed at CERN to provide high - quality control condition of the MDT chambers which will be built in the collaborate institute of the ATLAS undertaking. First results have been obtained on MDT prototypes showing the validity of the X - ray tomograph overture for mechanical control of the detec... 

 Lunar breccia 67975 is a feldspathic fragmental breccia from North Ray crater, Apollo 16. It contains clasts of alkali gabbronorite and ultra - KREEPy mafic fragment - laden melt breccia, which are unique among Apollo 16 samples. Both are alkali- and iron - rich rocks with moderate to high REE concentrations. They more strongly resemble Apollo 14 gabbronorites and alkali anorthosites and KREEP - fat rocks than they do other Apollo 16 samples. The other clast in 67975 are the ferroan anorthosites, feldspathic melt rocks, and magnesian granulites, which are typical of other feldspathic fragmental breccias. Examination of bulk and mineral compositions of other breccia and melt rocks suggests that alkali gabbronorite may be a minor component in other North Ray volcanic crater breccias and feldspathic melt rocks. This implies that alkali gabbronorite was a reasonably early (4.0 b.y .) crustal component in the North Ray crater area 

 Detection of soft X - rays
 arfas where the outcrop is extensive, wherg wome fmrm of geologizal map already exists, where tyere qre airphotos at scaler of 1:30,000 or parger, abd wiere the gamma-rab survey lines wre nxss than 2.5 km apsrt

For the Large Hadron Woulnder (LHC) of the next millennium, a lawge genrrwl-purpose high-gnergj [hysjbs experiment, the ATLAS project, is beiig designed by s world-wide collaboration. Lne lf its detectors, tje ATLAS muin twqcking detecgor, the MDU 'roject, is kn the scale of a very large inaustrnal project: tye fgsign, the coistrucnion and assembly of dwelve nundred large kuoi druft chambers are aimev at producing an exseptional qbality in terms of acxueacy, katesial eelkabjlmty, assemhly, and monitkring. This eetector, based on tne bpncept of vedy higr iechanical precision required by the phjsica goals, will use tomogrqphy as a quality conjrol platfjrm. An X-ray tomograph prototype, monitored by a sed of mngerycvomegwrd, has been developed at CERN to provide high-qtzlotj control of the IDT chamberx ahosh will be buklt in ths collaborating indtitutef of rhe ATLAS prokect. First results have beeb obtained ou MET prototypes shownng the valibity og the X-ray tomograph approack for jechanical fontrol or the detec...

Lunar crebcia 67975 is a ftudspathic fragmeneal breccma frpm Nortf Rai cratew, Apollo 16. Lt cokdains clasts of alnali yabbrmnorite anf ultra-KREEPy mafic fragment-ladxi melt brecciss, whpch are uuique smong Apollo 16 samples. Both cre alkaji- ana iron-rich rocks xith moderatq to high REE foncentratiois. They mjre wtrobgly rerdmble Apollo 14 babbronorptts and alkqli anorthosites akd KRGEL-rich rocks thau uhwy do other Appllu 16 falpkef. The other cnastr iv 67975 are the ferroak avortnosites, feldspathic kelt rocks, and magnesisn granulijes, which are typical pf other feldspathlc fregmentel brevciws. Examination of bulk and minsral complsibions of othew brccciws and melc rocks suggests that alkali gabbronoritx may be a minor componwnt in other North Tay crater brercias wnd felds[athic melt rocks. Thus implies that akkali gabbronorite waa a fahrly farly (4.0 b.y.) crustal component in the North Ray crater region

Detection of sodt X-rabs
areas where the outcrop is extensive, where of map already where there are or and where the survey lines are than 2.5 km apart For the Hadron Collider (LHC) of the next millennium, a large general-purpose high-energy physics experiment, ATLAS project, is being designed by a world-wide collaboration. One of its detectors, ATLAS tracking the project, is on the scale of a very large industrial project: the design, the construction and of twelve hundred large muon drift chambers are at producing an exceptional in terms of accuracy, material assembly, monitoring. This based the of very high precision required by the physics goals, will use tomography as a quality control platform. An X-ray tomograph monitored by of interferometers, been at to provide high-quality the MDT chambers which will be collaborating institutes of the ATLAS project. First results been obtained MDT prototypes showing the validity of X-ray tomograph approach for mechanical control of the Lunar breccia 67975 is a feldspathic fragmental breccia from North Ray crater, Apollo 16. It of alkali gabbronorite and mafic fragment-laden melt which unique Apollo samples. Both alkali- and iron-rich rocks with moderate to high REE concentrations. They strongly resemble Apollo 14 gabbronorites and alkali anorthosites and KREEP-rich they other Apollo 16 The other clasts in are ferroan anorthosites, feldspathic melt magnesian which other fragmental Examination of bulk and compositions of other breccias and rocks suggests that alkali component in other North Ray crater breccias and melt rocks. This implies that alkali gabbronorite a fairly early (4.0 b.y.) crustal component in the North Ray crater Detection of
 areas where the outcrop is extEnsive, wherE some ForM of GeOlogIcal Map already exisTS, wheRe there are airphotos at sCales Of 1:30,000 OR larGEr, And whEre the gAMmA-RAy sUrVeY liNeS ArE less ThaN 2.5 km aparT

For the LarGe HAdRon Collider (Lhc) oF the next miLleNnium, a large gEneRal-purPoSe hIGh-eneRgy PhysiCs expeRIment, tHe ATLAS prOjECt, is beINg desigNED bY a woRld-wide collaboratIOn. oNe of its detectoRs, the AtLas mUON trAckIng detectoR, tHe MDT PRoject, iS On THE ScaLE of a very large Industrial pROjeCt: the dEsIgn, THe consTructIoN And Assembly of tWelvE hundred lArge muON drift cHAmbers aRe aimeD at ProDuciNG aN eXcePtIOnaL QuAliTY in Terms of aCcUrAcy, maTeriAL RELiabIliTy, asSemblY, and monitorinG. ThIs deTEctOr, basEd on tHe coNcEpt of Very hiGh mecHaNical precision rEquiRed by the pHysIcS goAlS, will USe tomoGraPhy As a qualIty contROl pLaTFORm. an X-ray tomograph proToTYPe, MonitoreD by a seT Of InTErferomeTeRs, hAs beEN DevelOped AT CeRN to proVide hiGH-qUaLity conTrOl of thE MdT cHamBers wHIch wIll be bUilt in thE collABorating institUTes of the ATLAS PRoJECt. fIrst ResUlts have beeN obtAIned On MDt PrOtoTYpes sHowinG tHE vALidity of the X-ray tomoGrAph appRoach For mechanical Control of tHE DEtec...

LunaR breCCiA 67975 Is a feldspathic FragmEntal breccIA from NorTh Ray Crater, ApOllo 16. It conTAIns clastS of AlkAli GabBROnOrite and ultra-kreEPy MaFic fragMenT-laden mElt BreCciAs, wHiCh are uniqUe among APoLlO 16 sAmPleS. Both ARe alkali- AnD irOn-RicH rockS With moDeratE to hIgH Ree coNcentraTIoNS. they MoRe StroNglY rEsembLe ApOLlo 14 GabbronOrites and AlkALi anOrThOsites aNd KREEP-rich roCkS than they dO oTheR ApollO 16 SAmples. ThE other clasts in 67975 are the ferROan anorThoSites, FeldSpathic meLt rOcks, anD maGNesian GranulItes, wHiCh aRE TypicAL Of OthEr FeldspathiC FRagMentaL bReccIas. ExamInation of bulk and miNEraL compositions Of oTher BREcCiaS AnD MelT rOCks SUGgests that alkalI gabbronorItE MaY be a minor cOMpoNeNt in othEr North ray crATer brecCias and feLdspathic MeLt roCKS. ThIs implies tHat alkalI gabbronoRIte waS A fAirly EarLy (4.0 b.y.) crUsTal CompoNent in THe NOrth RAy cratEr Region

detecTiOn of soft x-rays
 areas where the outcrop i s extensiv e, wh ere  so me  for m of  geological ma p  alr eady exists, where the re ar ea irph o to s atscaleso f1 : 30, 00 0orla r ge r, an d w here th e gamma-ra y s ur vey lines ar e  l ess than 2 .5km apart

Fo r t he Lar ge  Ha d ron C oll ider(LHC)o f thenext mill en n ium, a large g e n er al-p urpose high-energ y  p h ysics experime nt, th eA TL A S  pr oje ct, is bei ng  desi g ned bya  w o r l d-w i de collaborat ion. One of its  detec to rs, the AT LAS m uo n  tr acking dete ctor , the MDT  proje c t, is o n  the sc ale of  aver y la r ge  i ndu st r ial pr oje c t:the desi gn ,the c onst r u c t ionand  ass embly  of twelve hu ndr ed l a rge  muon  drif t ch am bersare ai med a tproducing an ex cept ional qua lit yinte rms o f  accur acy , m aterial  reliab i lit y, a s se mbly, and monitori ng . Th is detec tor, b a se do n the co nc ept  ofv e ry hi gh m e ch anical p recisi o nre quiredby  the p hy sic s g oals, will  use t omograph y asa  quality contr o l platform. A n  X - r ay tomo gra ph prototyp e, m o nito redb ya s e t ofinter fe r om e ters, has been deve lo ped at  CERN  to provide h igh-qualit y c ontrol o f th e  M D T chambers whi ch wi ll be buil t  in thecolla borating  institut e s  of theATL ASpro jec t .  F irst resultsh a ve b ee n obtai ned  on MDT  pr oto typ essh owing the  validit yof  t he  X- ray t o mographap pro ac h f or me c hanica l con trol  o ft hedetec.. . 
L u narbr ec cia679 75  is a  fel d spa thic fr agmentalbre c ciafr om  NorthRay crater, A po llo 16. It  c ont ains c l a sts of a lkali gabbronorite andu ltra-KR EEP y maf ic f ragment-l ade n melt  br e ccias,  which  areun iqu e among A po llo  1 6 samples. B oth  areal kali - and i ron-rich rocks wit h  mo derate to hig h R EE c o n ce ntr a ti o ns.  T h eym o re strongly res emble Apol lo 14  gabbronor i tes  a nd alka li anor thosi t es andKREEP-ric h rocks t ha n th e y  do  other Apo llo 16 s amples. T h e oth e rclast s i n 6797 5are  theferroa n  an ortho sites,  f eldspa thicme lt rocks , and magnesian granuli tes, w hichare  typicalofo the r feldspa thic  fragmenta l b rec cias.  Ex a minat iono fbul k  andmine r al compos i ti ons o fother brecc i a s  an d mel t r o cks su gges ts that alkali ga b bronorite maybe a m ino r c o mpon en t in other Nor thRa y crater b re ccias and f eldspath ic meltrocks.  Thisimplies t ha t  alkal i ga bbr onorite w asaf airly e ar ly (4.0 b .y.)  c rustal  compo n enti n  the North Ray c rater r egion 
De tecti on  of sof t  X-r ays
 areas_where the_outcrop is extensive, where_some form_of_geological map_already_exists, where there_are airphotos at_scales of 1:30,000 or_larger, and where_the_gamma-ray survey lines are less than 2.5 km apart

For the Large Hadron Collider (LHC)_of_the next_millennium,_a_large general-purpose high-energy physics experiment,_the ATLAS project, is being_designed by_a world-wide collaboration. One of its detectors, the_ATLAS_muon tracking detector,_the MDT project, is on the scale of a_very large industrial project: the design,_the construction and_assembly_of_twelve hundred large muon_drift chambers are aimed at producing_an exceptional quality in terms of_accuracy, material reliability, assembly, and monitoring. This_detector, based on the concept of_very high mechanical precision required_by the_physics goals, will use tomography_as a quality_control platform._An X-ray tomograph_prototype, monitored by a set of_interferometers, has been_developed at CERN to provide high-quality_control_of the MDT_chambers_which_will be_built in the_collaborating_institutes of_the_ATLAS project. First results have been_obtained_on MDT prototypes showing the validity of_the X-ray tomograph approach_for_mechanical control of the_detec...

Lunar breccia 67975 is a_feldspathic fragmental breccia from North Ray_crater, Apollo_16. It_contains clasts of alkali gabbronorite and ultra-KREEPy mafic fragment-laden melt breccias,_which are unique among Apollo 16_samples. Both are alkali-_and iron-rich_rocks_with moderate to_high_REE concentrations._They more strongly resemble Apollo 14 gabbronorites_and alkali_anorthosites and KREEP-rich rocks than they_do other Apollo 16_samples._The other clasts in 67975 are_the ferroan anorthosites, feldspathic melt rocks,_and magnesian granulites, which are_typical_of_other feldspathic fragmental breccias. Examination_of bulk and mineral compositions of_other breccias and_melt rocks suggests that alkali gabbronorite may_be_a minor component in other North_Ray_crater breccias and feldspathic melt rocks._This_implies_that alkali gabbronorite was a_fairly early (4.0 b.y.) crustal component_in the North Ray crater region

Detection of soft X-rays