Classification Maceral

8/20/2019 Classification Maceral

1/26

THE NEW CLASSIFICATION OF

HUMINITE, VITRINITE AND INERTINITE

MACERALS

(ICCP System 1994)

PREPARED BY : Dr ED! NURSANTO


2/26

OUTLINES

. Introduction

. Classifcation o Huminite maceral

. Classifcation o Vitrinite maceral

. Classifcation o Inertinite maceral


3/26

Introduction

. The new classification of macerals have been presented,likewise based on extensive discussion and consultation

by an international group of experts.

. The huminite group is subdivided into three subgroups and sixmacerals, the latter are subdivided in maceral types,submacerals and maceral varieties

. The new system of subdivision of the vitrinite maceral groupdiffers based on following criteria:

- maceral group: defined by level of reflectance - maceral subgroup:defined by degree of destruction - maceral: defined by morphology and/or degree of

gelification. The inertinite classification can be applied to the organic matter

of all coalification stages and the subdivision of the maceralgroup is simpler since there are no sub groups


4/26

SU"DIVISION OF THE MACERAL #ROUP HUMINITE

(ICCP S!STEM 1994)

International Comitee for Coal and Organic Petrology (ICCP)


5/26

Subdivision ofhuminitemacerals

Group Sub group

Huminite Telohuminite Detrohuminite Gelohuminite

Term humus (L)-soil humus (L)-soil,

tela (L)-tissue.

humus (L)-soil, detritus (L)-

a product of disintegration.

gelu, us (L)-frost ,

stiffening humus (L)-soil.

Physical &

Chemicalproperties

The colour is dark to grey,reflectance vary beteen!," and !,#$% r'(arbon ) $!*++%

Hydrogen) *$%-.ygen ) "/*#/%

See Huminite, Te.tiniteand 0lminite

Physical properties may see1ttrinit and Densinite' Thechemical composition ofdetrohuminit is more

independent on its degreeof gelification'

See Corpohuminit andGelinit

Derivation

&-ccurences

Derived from

parenchymatous andoody tissue, cellulercontents roots, stems,barks and leaves composedcellulosa , tannin and

lignin' Huminite occurs incoal seam formed as aresult of anaerobic

preservation of

lignocelluloses material inmire'

Derived from

parenchymatous andoody tissue, cellulercontents roots, stems,barks and leavescomposed cellulosa ,

tannin and lignin'-ccurence may seeTe.tinte and 0lminite

Derived from herbaceous

and aborescent plantsthrough the strong decay ofparenchymatous andoody tissues of stems andleaves' Detrohuminite is the

main constituent ofTertiary lignits, its contentis 23!%

Derived from intensely

gelified plant tissues andhumic detritus and mayalso derive fromprecipitated humiccolloids'

Practical

importance

1ffects such as bri4uetting,carbonisation, li4uifactionand combustion'

See Te.tinit and0lminite

Dependent on thegelification degree,detrohuminite*rich coal issuitable for a range of

industrial processes, e'gbri4uetting, cokeproduction

See Corpohuminite andgelinite


6/26

SU"DIVISION OF THE MACERAL #ROUP VITRINITE

(ICCP S!STEM 1994)


7/26

Sub divisionof vitrinite

macerals

Group Sub group

5itrinite Telovitrinite Detrovitrinite Gelovitrinite

Term Vitrum (L)-Glass Tela (L)-tissue, vitrum (L)- glass

Vitrum (L)-glass,detritus (L)-abrasion

Gelu, us (L)-frost,vitrum (L)-glass

Physical

and

chemicalproperties

The colour is grey to hite'Polishing hardness is soft'

6lemental composition isrank dependent'

Carbon ) ++*7$%Hydrogen) $*"%-.ygen) "$*"%

See vitrinite, telinite,collotelinite

The colour see vitrinite'eflectance !,3 3 to

about ",%' Polishinghardness of

detrovitrinite iselatively soft' Chemicalproperties may see

vitrinite'

See vitrinite,corpogelinite and

gelinite

Derivationand

occurences

Derived fromparenchymatous and oody

tissues of roots, stems, barksand leaves composed ofcellulosa and lignin' -ccursin coal seams formed as aresult of anaerobic

preservation of ligno*cellulosic material insamps'

Derived fromparenchymatous and oody

tissues of roots, stems, barksand leaves composed ofcellulosa and lignin andoriginating from herbaceousand aborescent'

-ccurence may see telinite and collotelinite

Derived by comminutionfrom parenchymatous

and oody tissue ofroots, stems and leavescomposed of celluloseand lignin' Constituent-f microlithotypes

vitrinertite, trimaceriteand durite'

Derived from thecontens of plant cells or

from humic fluidsformed from palnttissues duringdecay and diagenesis'-ccurence may see

corpogellinte andgelinite

Practical

importance

eadily fused duringcarbonisation and also theproducts of hydrogenationand combustion'

8n combustion, telovitrinite tends to form cenospheres

9a:or source for thegeneration of natural gas'

See corpogelinite andgelinite


8/26

MACERALS OF THE INERTINITE #ROUP

(ICCP S!STEM 1994)


9/26

M$%er$& #r' I*ert+*+te

a. Macerals with plant cell structures

Sub

division ofinertinite

macerals

9acerals ith plant cell structures

;usinit Semifusinite ;unginite

Term Fusus (L)-spindle, fibre Semi-(L)-half-, fusu(L)-spindle, fibre Fungus (L)-mushroom, toadstool

Physicaland

chemical

properties

The colour is greyish hite toyelloish hite'The element composition independent

of its rank)%C


10/26


b. Macerals lacking plant cell structures

Sub divisionof inertinite

macerals

9acerals lacking plant cell structures

Secretinit 9acrinite 9icrinite

Term Scretio (L)-secretion (from its occurence insecretor duct of seed ferns)

!a"ros(G#)-long !i"ros (G#)-small

Physical

andchemical

properties

The colour is pale grey to yelloish

hite'Ao reflecting secretinite, has norelief' High reflecting secretinite may beharder than the associated fusinit andill be difficult to grind and polish'

The colour is light grey to hite

and sometimes yelloish hite'The relief is variable' Aittle isknon about the chemicalcomposition of pure macrinite'

The colour is pale grey to hite'

9icrinite shos little or no relief'Due to the small siBe of micrinitegrains and the difficulty of isolatingpure micrinite, chemical data are notavailable'

Derivationandoccurences

The origin of secretinite is commonlyconsidered to be an o.idation product ofresin but it may originate from humicgels that formed in secretory duct ofmodullosan seed fern and to a lesser

e.tent in cells or duct of other vascular

plants'

Derived from flocculated humicmatri. subtances' 9acrinit mayalso be a metabolic product offungi and bacteria, and isolatedaggregrates may originate from

coprolites' 9acrinite is common

in durite, particulary in somecrasidurites from northernHemisphere'

Some micrinite is generated ingeneral during coalification' 8tprepresents either the coalificationproduct of former sclerenchyme or,more commonly, the residues of

former lipoid


11/26


c. Fragmented inertinite

Sub division of

inertinitemacerals

;ragmented inertinite

8nertodetrinite

Term $nertia (L)-inactivit, detritus (L)-that %hich has been abraded

Physical and

chemicalproperties

8nertodetrinite is non*fluorescent, e.cept particles ith relatively lo reflectance in

lo*and medium*rank coals' The polishing hardness is higher than that ofcorresponding vitrinite macerals but it varies according to the origin of the particles'

Derivation andoccurences

8nertodetrinite has a variety of phytogenetic precursors all of hich have been sub:ectto some degree of fusinitiBation) plant cel alls or their contents, phlobaphenes fromdecomposed tissues, o.idiBed spores and constituent ith fungal affinities' 8t is a

constituent of the microlithotypes trimacerite, vitrinertite and durite, here it occurs in

varying 4uantities, being especially abundant in some tenuidurites' 1llochthonousinertodetrinite may occur together ith caly minerals, pyrite or alginite ithin

sediments'

Practical

importance

8n coke produced from charges ith a high content of high volatile bituminous coals,

inertodetrinite that is ell integrated ith the fused coke matri. increases the

mechanical strength of the coke' 8n general, its technical properties depend on the kindof inertinite macerals from hich it is derived'


12/26

T$*- y'T$*- y'


13/26

CHEMICAL PROPERTIES OF TE.TINITE

Te/t+*+te %'*s+st '0 m+% sst$*%e $s 2e&& $s '0 te

rem$+*s '0 %e&&&'se $*3 &+*+* S+*+0+%$*t

3+00ere*%es e/+st et2ee* te %em+%$& %'m's+t+'*

'0 te/t+*+te A $*3 te/t+*+te " Were$s te/t+*+t " +*

e*er$& +s %'m'se3 '*&y '0 m+*s $*3 rem$+*s '0

&+*+*, te/t+*+te A m$y %'*t$+* rem$r-$&e 'rt+'* '0

%e&&&'se, res+*s, 2$/es $*3 t$**+*


14/26

#r' M$%er$& C$r$%ter+st+%s

V+tr+*+te te&+*+tete&'5

C'&&+*+te

3etr'5%'r'%'&&+*+te6+tr'3etr+*+te

%e&& 2$&&s t+sse

$m'r's (e& 'r e&+0+e3

3etr+ts)%e&& 0+&&+*s3etr+ts

L+t+*+te s'r+*+te%t+*+teser+*+te0&'r+*+te

res+*+te$&+*+te+tm+*+te%&'r'y&&+*+te&+t'3etr+*+tee/s3$t+*+te

s'res, '&&e*%t+%&esser+*+7e3 %e&& 2$&&s (%'r-)&$*t '+&s

res+*s, 2$/es, &$te/$&$e$m'r's ($%ter+$&, $&$&, 0$*$&)%&'r'y&&3etr+tsse%'*3$ry e/3$tes

I*ert+*+te 0s+*+tesem+0s+*+tes%&er't+*+tem$%r+*+te+*ert'3etr+*+tem+%r+*+t

%e&& 2$&&s (%$rre3, '/y3+7e3)%e&& 2$&&s ($rt&y %$rre3, '/y3+7e3)0*$& %e&& 2$&&s$m'r's e& ('/y3+7e3, met$'&+%)3etr+tsse%'*3$ry re&+% '0 '+& e*er$t+'* (m$+*&$y)


15/26


16/26

Cem+%$& r'ert+es '0 %'&&'te&+*+te

Te e&eme*t$& %'m's+t+'* $*3 te $r'm$t+%+ty

$re r$*- 3ee*3e*t I*%re$s+* $r'm$t+%+ty

%$ses +*%re$s+* re0&e%t$*%e N' +*0'rm$t+'*+s $6$+&$&e '* te %em+%$& %'m's+t+'* '0

re %'&&'te&+*+te (T$e& 8)


17/26


18/26

D$ 6$r+t$s y$+t Te/t+*+te A y$* mem*y$+ re0&e-t$*

&e+ re*3$ 3$r+$3$ Te/t+*+te "

Te/t+*+t " er$s$& $*y$ 3$r+ m+* 3$* s+s$ &+*+*,se3$*-$* Te/t+*+t A me*$*3* 'rs+ y$* $*y$-

se&&'s$, res+*, 2$/ 3$* t$*+*

Te/t+*+t A tere*t- 3$r+ -$y ym*'serm

(T$-'3+$%e$e, Cress$%e$e) -ss*y$ 3$r+ $-$r5$-$rMarcoduria inopinata, se3$*-$* Te/t+*+t " er$s$&

3$r+ -$y $*+'serm 3$* tm$* er$%e's


19/26

- W$r*$ &m+*+t A $5$ e&$ 3$* &m+*+t " $5$, re0&e-t$*

&m+*+t " ter$*t* 3$r+ r$*- 3$* *+&$+*y$ er6$r+$s$+ $*t$r$

:,8 3$* :,4 Rr

- U&m+*+t A mem*y$+ +*te*s+t$s &e+ t+*+ 3$r+$3$ &m+*+t "5 U&m+*+t A er$s$& 3$r+ ym*'serm 3$* &m+*+t " er$s$& 3$r+

m$%$m5m$%$m $*+'serm


20/26


21/26

FUSINITE


22/26

FUN#INITE


23/26

SECRETINITE


24/26

MACRINITE


25/26

MICRINITE


26/26

INERTODETRINITE

Classification Maceral

Documents

Transcript of Classification Maceral