Study Club Praktikum Sedimentologi

7/26/2019 Study Club Praktikum Sedimentologi

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STUDY CLUB

LABORATORY OF SEDIMENTOLOGY ANDQUARTENARY GEOLOGI

Grain Size Analysis


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MANFAAT ANALISA BESAR BUTIR

Semata-mata nt! men"es!ri#si $atan se"imen se%ara!antitati&

Men'elas!an "istri$si !ran $tir yan( "a#at men'a"i sat

!ara!teristi! en"a#an se"imen "i$e$era#a lin(!n(an Distri$si !ran $tir "a#at men'elas!an #r)ses trans#)rtasi*

#r)ses #en(en"a#an yan( $erlan(sn( "an "ia(enesa "ari$atan se"imen

Da#at men'elas!an #la #)r)sitas "an #ermea$ilitas "ari$atan se"imen


3/14

+A se"iment is ,ne it mst $e &ar &r)m te s)r%e* .ile i& it is

%)arse it mst $e near t) a s)r%e/

-R)$ert L0 F)l!-

1etr)l)(y )& Se"imentary R)%!s


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6/14

1ENYA2IAN DATA DALAM S3ALA ARITMATI3

4ist)(ram

3r5a Fre!ensi 3r5a 3mlati& Fr


7/14

1ENYA2IAN DATA 1ADA 1ROBABILITY SCALE

Nilai median = 1.3


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SORTING

Fa!t)r yan( mem#en(ari #emilaan 6

Rentan !ran $tir yan( ters#lai Ti#e #en(en"a#an

3ara!teristi! ars

7a!t


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Kurtosis* a 5ale tat

in"i%ates .eter teist)(ram as a sar# #ea! )ra 8at t)#

TEXTURES AND ANALYSIS O TERRI!ENOUS "LASTI"

SEDI#ENTARY RO"KS

Valuesfrom

To Equal

0.41 0.67 very platykurtic

0.67 0.90 platykurtic

0.90 1.11 mesokurtic

1.10 1.50 Leptokurtic

1.50 3.00 very leptokurtic

3.00 e!tremely leptok


10/14

S$e%ness)& te "istri$ti)n* an in"i%at)r )& .eter te (rasize ist)(ram is symmetri%al )r is s!e.e" t) a i(er#er%enta(e )& %)arser )r ,ner material0


SEDI#ENTARY RO"KS

Valuesfrom

To "at#ematically$ %rap#ically&ke'e( to t#e$

)1.00 )0.30 &tro*+ly positiveske'e(

Very ,e+ative p#ivalues- coarse

)0.30 )0.10 ositive ske'e( ,e+ative p#ivalues

)0.10 / 0.10 ,ear symmetrical &ymmetrical

/ 0.10 / 0.30 ,e+ative ske'e( ositive p#i values

/ 0.30 / 1.00 &tro*+ly *e+ativeske'e(

Very ositive p#ivalues- fi*e


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Te (rain-size "istri$ti)n is "etermine" t)s)me e9tent $y te #r)%esses )& trans#)rtan" "istri$ti)n0

Gla%ial se"iments are n)rmally 5ery #))rlys)rte"* ri5er se"iments m)"erately s)rte"an" $)t $ea% an" ae)lian "e#)sits arety#i%ally .ell s)rte"0


SEDI#ENTARY RO"KS


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4UBUNGAN ANTARA TRANS1ORT SEDIMENDENGAN DISTRIBUSI U3URAN BUTIR

2enis trans#)rtasi se"imen 6

Ss#ensi)n an" $e"l)a"

Saltati)n

Fa!t)r-&a!t)r yan( mem#en(ari 6

U!ran $tir :i"enti! "en(an massa $tir;

3at ars

Fl!tasi ars yan( $er!em$an(


13/14

Dari !r5a ini "a#at menn'!an $a.a a"anya #er$aan'enis trans#)rtasi yan( $erlan(sn( #a"a sat #r)ses#en(en"a#an yan( !em"ian "a#at men'a"i se$a!ara!teristi! "ari lin(!n(an #en(en"a#an0 :liat #a"a

ma!ala


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1RA3TI3UM ANALISIS BESAR BUTIR

Met)"a #en(am$ilan sam#el 6

4an" a(er

Bl)%! Unit

#r)se"r !er'a yan( "ila!!an #a"a #ra!ti!m ini yait 6

Sam#el yan( "i#er)le "ari la#an(an "i%%i "an "i!erin(!an

S#littin(* "en(an %ara men(am$il sam#el yan( me.a!ili sam#el yan( a"a0 S#littin( "a#at

"ila!!an "en(an s#litter ata "en(an !arterin(0 3arterin( "ila!!an sam#ai "i#er)le $eratsam#el yan( "iin(in!an

Menim$an( sam#el nt! "ianalisa0 Men(saa!an $erat sam#el mer#a!an $ilan(an $latnt! mem"a!an #eritn(an

1en(aya!an* "i(na!an sat set aya!an yan( "iin(in!an "an mesin #en(aya!0 Sam#el yan(tela "itim$an( "ari setia# la#isan !em"ian "iaya! nt! meliat !ran $tir "ari alssam#ai !asar

Aya!an terse$t "issn "en(an n)m)r mes yan( "ileta!!an #alin( $esar !ran mesnya01en(aya!an "ila!!an "en(an mesin #en(aya!an selama ?@ menit

Setela ?@ menit* sam#el "ian(!at "ari tem#at #en(aya!ann0 Tia#-tia# sam#el yan(

tertam#n( "alam mes !em"ian "i!elar!an tan#a men%am#r!an "en(an mes yan( lain Sam#el yan( "i#er)le ta"i !em"ian "ila!!an #enim$an(an

Data tim$an(an terse$t !em"ian "ila!!an #en()laan "ata

Data terse$t "isa'i!an "alam $ent! ta$el "an (ra,! se#erti (ra,! semil)(0

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Study Club Praktikum Sedimentologi