abstract stibnite herja sgr 2013

8/13/2019 Abstract Stibnite Herja SGR 2013

1/3

Conferina Naional a Societii Geologice a Romniei, Ploieti, 18 Decembrie 2013

POSTER

THE X-RAY DIFFRACTION STUDY OF THE STIBNITE CRYSTAL

STRUCTURE

GHEORGHE-ADRIAN BRANOIU1, BOGDAN STANCIU1

1Universitatea Petrol-Gaze din Ploiesti, a!"ltatea In#ineria Petrol"l"i si Gazelor, De$arta%ent"lGPI&, B-d"l B"!"resti nr' (), !od $ostal 1**+*,[email protected]

Universitatea Petrol-Gaze din Ploiesti, a!"ltatea In#ineria Petrol"l"i si Gazelor, S$e!ializareaGeolo#ia Res"rselor Petroliere,[email protected]

Key words: Rietved !et"od# str$%t$re re&i'e!e't# Her() ore de*osit# Neo+e'e vo%)'ites# ,$t)i

o$'t)i's

T.e !r/stal str"!t"re o0 t.e stinite sa%$le 0ro% Her2a 34ara%"res !o"nt/, nort.ern Ro%ania5 6asre0ined "sin# 7-Ra/ $o6der di00ra!tion data and t.e Rietveld %et.od' T.e st"died sa%$le 30i#"re 15!o%es 0ro% t.e !olle!tion o0 %ineralo#/ laorator/ o0 Petrole"%-Gas Universit/ o0 Ploiesti, and 6as!olle!ted 0ro% t.e vein 1* Salan o0 Her2a ore de$osit'

i#"re 1' Stinite sa%$le 0ro% Her2a ore de$osit'

ro% #eolo#i!al $oint o0 vie6 t.e Her2a $eri%eter elon#s to t.e Neo#ene vol!anites zone o0 EasternCar$at.ians, lo!all/ ein# sit"ated in t.e G"tai 4o"ntains' T.e Her2a ore de$osit is lo!ated et6eenC.i"zaia 8alle/ and iriza 8alle/, ao"t 9:% N; o0 Baia S$rie to6n' In t.e Her2a zone are :no6nsedi%entar/ tertiar/ and Neo#ene %a#%ati! 0or%ations' T.e sedi%entar/ 0or%ations elon# to t.eEo!ene, Sar%atian and Pannonian' T.e Neo#ene %a#%atites are re$resented / vol!ani! $rod"!ts and

/ intr"sive odies' T.e vol!ani! $rod"!ts are re$resented / lava 0lo6s and s"ordinatel/,$/ro!lasti! ro!:s' T.e v"l!anites are re$resented / $/ro


2/3


T.is ore de$osit re$resented / ./drot.er%al veins oriented NE-S;, is lo!ated in andesiti! er"$tions0ro% t.e Neo#ene $eriod' T.e $ol/%etalli! %ineralized veins !ontains a 6ide variet/ o0 %etalli! %i-nerals> s$.alerite, #alena, $/rite, $/rr.otite, stinite, !.al!o$/rite, arseno$/rite, 2a%esonite,tetra.edrite, se%se/ite, and non%etalli! %inerals> ="artz, siderite, an:erite, !al!ite, #/$s"%, ar/teand vivianite' T.e ./drot.er%al veins s.o6 di00erent t/$es o0 str"!t"res> %assive, r"anate,

re!!iated and !on!entri! 3Po$es!", 1)?+5'

T.e stinite !r/stals s.a$ed li:e slender $ris%s t.ere are o0ten striated and or $arallel lines on !r/stals"r0a!e or !leava#e 0a!es' ;.ere one t6in $lane ends t.e !r/stal one dire!tion and anot.er t6in

$lane ends it in t.e ot.er dire!tion' T.e ="alit/ o0 t.e stinite sa%$le 6as #ood, t.is ein# !o%$osedonl/ o0 stinite !r/stals'

Stinite is t.e %ost !o%%on and 6ides$read anti%on/ %inerals, and is one o0 t.e end ter%s o0 t.estinite-is%"t.inite iso%or$. series, !r/stallized in t.e ort.or.o%i! s/ste%' T.e stinite str"!t"re!onsists o0 @SS+n!.ains $arallel to t.e ca a11'(*?J, b('((J, c11'1?J, Z, !r/ size L1+*n%, !r/ densit/3#!%(5'+, 3-si#%a*'*1+5, R6$)'+, Re


3/3


T.e 0i#"res o0 %erit 3o"n#, 1))+K Pe!.ars:/ and &avali2, **)5 6ere> #oodness-o0-0it GO1'1),Q1'1 and t.e D"rin-;atson statisti! d'1+' T.e ato%i! $ositional $ara%eters 0or t.e stinitestr"!t"re res"lted 0ro% t.e Rietveld re0ine%ents are $resented in t.e tale 1' T.e $a$er $rovides a ne6set o0 t.e "nit !ell $ara%eters and 0ra!tional !oordinates t.at de0ine t.e stinite str"!t"re'

Re&ere'%es

Br":er A7S G%H Farlsr".e, **' TOPAS T"torial'

Da%ian G.', **(' T.e #enesis o0 t.e ase %etal ore de$osit 0ro% Her2a, St"dia Univ' Bae-Bol/ai,Geolo#ie, 7L8III, 1, )'

Ha.n T.', **9' International Tales 0or Cr/stallo#ra$./, 8ol"%e A, 9t. Edition, S$a!e Gro"$S/%%etr/' 3IUCr Series5' S$rin#er'

Nea%" G'4', Ri H'R', on# H', Branoi" G.'A, *11, T.e re0ine%ent o0 t.e 0l"orite str"!t"re 0ro%Her2a 3Ro%ania5, St"dents: #eolo#i!: :on0eren!e *11, Univerzita Farlova v Praze,PVrodovWde!: 0a:"lta, Pra.a'

Pe!.ars:/ 8'F', &avali2 P'', **)' "nda%entals o0 Po6der Di00ra!tion and Str"!t"ralC.ara!terization o0 4aterials, Se!ond Edition, S$rin#er'

Po$es!" G.', 1)+' Oservatii as"$ra !atorva as$e!te %or0olo#i!e ale "nor !ristale din za!a%ant"lHer2a 3Baia 4are5' Analele Universitatii B"!"resti, Seria Geolo#ie-Geo#ra0ie, To%e 7III, nr' 1, $')(-1*9'

S!avni!ar S', 1)+*' T.e !r/stal str"!t"re o0 stinite' A redeter%ination o0 ato%i! $ositions' &eits!.ri0t0Xr Fristallo#ra$.ie, 11, 9-)?'

o"n# R'A', 1))+' T.e Rietveld 4et.od, O

abstract stibnite herja sgr 2013

Documents