lect. 8 & 9 sed structures - copy

7/24/2019 Lect. 8 & 9 Sed Structures - Copy

1/82

1

SEDIMENTARY

STRUCTURES


2/82

Sedimentary structures "!&%$# "!

'

(

)

*+ ,-.

!" #$%

/!" -0 #$&2!" 34

!" #$

%&!" 567 ,8 9: -0 +./;!" #$+

*?@!B3&

&!"

%!" -0 F"2!"G H!" #$&

&J K

77

(L OP.:- ="- QP !-"

!" #$

%&!" 32/7$5! :$!" #$&2!" K

7 $%V0 O.$!"

W

&!" X-6!"

(9: Z0 K

*!" X-[ L

!"P

!" #$

%&!" \


3/82


4/82


5/82

f

%&!" K!$g \0 .)+ \$*&2!" h4 "bMjkd %&!" $8 $;% Ll!" &2!" 34 P:Cast

$

/!" &2!" 34

Q&g #$&2!" 34 h!" #$

; )

*+ o%7#$%&!" $54 3*!" &2! !$*!" &2!" K7


6/82

p

PRE-DEPOSITIONAL STRUCTURES

Uncjnqjrmity 4"*!" . #$+Z-.

5!" 9:$


7/82

|

}rjj~eMarsUTE MARS Tjjk Mars


8/82


9/82

Syn-depositional - Interbeds structuresDepositional structures

structural bed fors


10/82

1

Bedding&2*!"

h&7 3*!" #$!" Z$; "!!" O.J $V* /&8 X-[ h7


11/82

&2*!"eddin($_ \-P ?$} H!" ;7!"

( Strata Bed ayer aminaG

11

ettijvn Ckassiqicatijn( 1f cm kay J! &8

( fp cm Skay $l{ &8

(p1'cm kjcy

*Z &8( Mjre tvan 1' cm Massi~e *;: &8

Inram Ckassiqicatijn(9: &Z0 ". ;> &81*:

( ;> &81`

(;!" `*: &812

(;!" + &81`

(". + &81`

(;!" g1`

(9: Qg0 ". + g`


12/82

1'

4.*!" ;6+0- #$&2!" Q


13/82

1

Massi~eeddin

h;;!" &2*!" \


14/82

1

kateddin*;!" &2*!"34" -0 *;!" &2*!" $54 Q


15/82

1f

!" $g!" ar~es$;!" $)J0 #$&8 : )!" $)J0 #$&8 P$&7!


16/82

1p

L 567 #$%34" &2*!" #$%KJ$,]$)7b -0 w2H7 $5 2, &2*!" #$,*: 20

$*!"GCurrent ineatijnB;*!" -0

32!"Gartin ineatijnB


17/82

1|

aminated edding*;!" &2*!"

x 2;!" #$&2!" 2 $,F": g*!" $&!$

9 g*!" Q: P"F "b18$*;!" &2*!" Q*?b P- .% g*;!" &2*!" 56,

3+

!" -0 3)

%!" -0 3+./;!" K

Z*!"


18/82

1

aminated edding*;!" &2*!"

g*!" -.J $&

01K*;!" $*!" 34 $l;!" z*!" '?$%: $&0 l!" #$+$l!" -0 {"/!"


19/82

1


20/82

'

! 2 !


21/82

'1

.*;!" &2*!" }radededdin( iner uard Njrmak radin

( Cjarser uard Re~erse radin


22/82

''


23/82

'

8$*;!" &2*!" Crjsseddin R jkiue eddin

Q7 ,-"$_/,$: : Q$*7- $5/: $;*: -0 $5l7 3*!" #$&2!" L $: #$&8 9: \


24/82

'


25/82

'f

( Cross-beddin! indicates "i!" andunidirectional current #elocity$ often

%inds in terrestrial settin!s$ forin!sand dune lee-slopes&

( Cvaracter jq eddin qrjm simke vjrijntak kaminae tj cross-bedding ripples soft-sediment deformation jr bioturbated


26/82

'p


27/82

'|


28/82

'

Rike eddin and crjsskaminatijn8$*;!" g*!"- 3;%!" &2*!"

`%!" #$:> $520 L Q


29/82

'

( Ripple ar's record bac'-and-fort" action by %a#es in s"allo% %ater&

(()*+,* ./01*Stoss side2034* 5678 901:* ;

(,* ./01*Lee side2034* ?@8 901:B ;

(;3>* 0F:070GH 567 0JK 3J* M*+/8

(?0,4 3/ QSyetric Ripplesa#e ripples Oscilation ropples

(?0,4 3V 3/ -Asyetric Ripples


30/82


31/82

1


32/82

P t d iti l


33/82

Post-depositionalDeforational structures

Skums Skides

Cjn~jkute kaminatijn Cjn~jkute eddin

Recument qjresets jad structures


34/82

3K+* 03J*

+,*

$o*+" 40 $o*+"

0

$

8 X

l;!" g*!" X

l;!" &2*!"#$g+" w

"

5!"

+:,


35/82

f

K"-!" ]o7 L!b ,P;!" Q:"/!"

1

$)!" O

g

'K

"!" !$

b

.%: L K

*;!" K

"!

$)!" ZJ K

*;!" K

"!" ;7 O

g

Q!" " 8 $


36/82

p

$;JB92!"G ?0 K" 34 BQ:!"G QV K" $;z+" 9: Q


37/82

|

$


38/82

2;!" -0 Xl;!" &2*!" Cjn~jkute eddin

(L0 L!b ZJ 34 K"!" $4.+b )*+ Q:!" $)J0 34 Q$: #$2! *: : \


39/82


40/82

2 !" g *!"Cjn~jkute kaminatijn


41/82

1

(g*!" P;*7 3*!" 9,z!" -0 #$&&!" ;$%!" :!" H!" 34 Q*7 3*!" /"!" ,/!"

(O


42/82

'

f#$g+"- w"5!" Skum qjkdin(Xl;!" &2*!" -0 g*!" 34 $!" _ $;Z O.J"- &8 34 !- !$**: #$&8 O. 34 Q


43/82

Sjqtsediment deqjrmatijn indicates skumin jr cjmressijn jqkayers eqjre cjmkete kitviqicatijn

iscellaneous structures


44/82

iscellaneous structures7+J4 3K+2 03JK

]K0`* gh* j0Jk[* 37+J* mJ* 3 q @4: 3K+2 03JK0FJ+Y: 3@3= 0F6k8 \^ M+J4:

QIDifferent crac's structures @64v,* w+]* 03JK1 Svrinae cracs *!"

' Syneresis cracs $;!" P8

BIIG Rain rints structures 2;!" $V %

BIIIG Sand dyes structures Q:!" 8"g %

BIG Sakt seudjmjrvs structures "!;$


45/82

f

Svrinae cracs*!"

$5 2,- "5! QJ!" /7 .% o%7 Mud Cracs Sun cracs Desiccatijn cracs

: Q


46/82

p

$;!" P8 Syneresis cracsP;!" 92!" 9: KJ$;!" $;!" "H*" ,8 9 QJ!" 34 $;!" P8 )*+ QJ!" 34 Q


47/82

|

iscellaneous structures7+J4 3K+2 03JK

Rain rints structures2;!" $V %". `$%!" Q:!"- 9,z!"- 92!" h&8 34 Q


48/82


49/82

BIIIG S d d t t Q !" 8" g %


50/82

f

Crjsssectijns jq mudcrac qikks qrjmtve Middke rdj~ician St auk }rjujq tve centrak Aakacvians Njte tvat

tve cracs cjntain se~erakeneratijns jq sediment qikks itv amicrjstratiravy rekatake tjj~erkyin kayers Tvese jser~atijnsdemjnstrate tvat tvese cracs erejen at a sedimentair jr sedimentater surqace a numer jq times andtvat tvese cracs cjukd njt va~eqjrmed qrjm uard inectijn jqsediment

BIIIG Sand dyes structures Q:!" 8"g %

xio!enic sedientary structures


51/82

f1

xio!enic sedientary structures+3 3K+2 03JK

H!" 34 $J" $o+ )*+ Q


52/82

xio!enic sedientary structures


53/82

f

xio!enic sedientary structures+3 3K+2 03JK


54/82

f


55/82

ff


56/82

fp


57/82

f|


58/82

f


59/82


60/82


61/82


62/82

p'

Synsedimentary cjncretijns BenecjntemjranejuscjncretijnsGjstsedimentary cjncretijns BEienic cjncretijnsG

' H 4 H


63/82

p

' -H: 34 -H:

Cjneincjne


64/82


65/82

pf

$/o!" #$+.!"

Setaria

?"P #$%&F$*;7 #$+.!" 9: "+0- Q


66/82

f, H !" ." !"Stykjkites


67/82

p|

f ,H!" ."-!" Stykjkites


68/82


69/82

p

Stykjkites kj amkitude


70/82


71/82

Stykjkites j svae


72/82

|'

y


73/82


74/82

a~y tj crinked qine kaminae cjmjsed


75/82

|f

a~y tj crinked qine kaminae cjmjsedjq cjukets jq rainstjne kayersBdarG anddjkjmitic mudstjne kayersBkivtG UerCamrian Cjnjcjcveaue imestjne jqtve centrak Aakacvians

kanar kaminaeBreater tvan fmm tvicG and tvin edsde~ekjed in djkjmite mudstjne jer rjterjjicittenjjm Djkjmite amerskey asin estern Austrakia

jcet niqe kjer keqt center is arjimateky mm kjn


76/82

|p

Cjn~jkute qjkdin in crinked kaminatedmudstjnes qrjm tve Uer SikurianTjnjkjay jrmatijn estern Marykand

Smakk strjmatjkitic ijverm encased intvin eds jq carjnate mudstjne tvatend arjund tve ijverm qrjm jtv aj~eand ekj Aqqected eds tvin katerakkyaj~e and ekj tve ijverm and svjincreasin dis and tvicnesses djn tve

sides jq tve ijverm eds asre tvicestakjn tve qkans jq tve ijverm and tvinkaterakky as ekk Uer CamrianCjnjcjcveaue imestjne esternMarykand


77/82

a~y tj crinked kaminite cjmjsed jq cjukets jqekjidak kime rainstjneBdarG and djkjmitemudstjneBkivtG Tve kaminatijn is interreted as due


78/82

|

mudstjneBkivtG Tve kaminatijn is interreted as duein art tj tve sediment train and indin jqcyanjacteriak surqace mats je~er njte tve tvreederessijnqikks cjmjsed jq qine sandsied ekjidakrainstjne at keqt centerBarrjsG Tvese are interreted

as traed edkjad and njt tve resukt jqcyanjacteriak train Secimen qrjm tve UerCamrian Cjnjcjcveaue imestjne esternMarykand

Cjntinujus isjacvjus mudstjnekaminae itv radiak crystak saryssearated y detritak ekjidakkaminae Tve isjacvjus mudstjnekaminae may e ~ery qinekycrystakkine cvemicak reciitates

Strjmatjkite qrjm tve Camrianaterqjk jrmatijn CanmjreAkerta iekd jq ~ie arjimateky'mm


79/82

|

Strjmatjkites nuckeated jn qkat intrackasts jqkanar and crjssstratiqied ekjidakrainstjne Uer Camrian Cjnjcjcveaueimestjne estern Marykand iekd jq ~iearjimateky 1cm

Djkjmitic strjmatjkitic ijverm qrjm tvejer rjterjjic Taktveikei jrmatijnetvei }rju Njrtvest Territjries Cjinin keqt center is arjimateky mm indiameter


80/82

eddin kane ejsure jq djkjmitic cjkumnarstrjmatjkite qrjm tve jer rjterjjic Taktveikeijrmatijn etvei }rju Njrtvest Territjriesiekd jq ~ie arjiateky 1|incves

eddin kane ~ie jq urrjs disrutinUer Camrian djkjmitic mudstjneqrjm tve }atesur jrmatijn jq centrak

ennsyk~ania iekd jq ~iearjimateky 1'cm

Tvis vjtjrav svjs an ejy


81/82

1

imrenated cjre jq intertidak jnddejsits qrjm tve mjderncarjnate tidak qkats jq njrtvestAndrjs Iskand Tvis cjmketekyijturated teture as acvie~edy randjm urrjin jq ratversmakk annekids and astrjjds

In~ersekyraded isjid ed qrjmtve teee jne jq tve ermianCaitan Reeq Cjmke est

Teas ens ca ajut fmm indiameter


82/82

Njdukar masses jq micrjcrystakkine ysumBvite atcvesGtvat rane in svae qrjm j~jid tj rectikinear itv jutkinestyicak jq ~erticakkyjriented jttjmrjn ysum sinkecrystaksBnjte tve svakkjtaik svae jq sjme jq tve rectikinearqjrmsG Ckearky tve micrjcrystakkine ysum is isseudjmjrvjus aqter kare ysum sinke crystaks jr crystakckusters It is jssike tvat an earky diaenetic stae jqdevydratijn jq jttjmrjn ysum crystaks tjmicrjcrystakkine anvydrite as qjkkjed y a qinak revydratijn

jq tve anvydrite tj micrjcrystakkine ysum Dar interkayersare cjmjsed jq detritak ysum rains jq ranuke tj sandsie Mijcene Sjkqiqera Series Siciky

lect. 8 & 9 sed structures - copy

Documents