petro-chemical studies of granitoid at rajawaram area, north … · 2016. 4. 24. · k2o (1.03 –...

International Journal of Trend in Research and Development, Volume 3(2), ISSN: 2394-9333

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Petro-Chemical Studies of Granitoid At Rajawaram Area, North

Eastern Part of Peddavoora Schist Belt, Nalgonda District,

Telangana State 1Ch. Ravi and

2R. Pavanaguru,

1,2Geology Department, Osmania University, Hyderabad, India

Abstract: Petro-chemical Charecterisation of Granitoids in and

around Rajawarm area ( N 160 401 58.811 E 790 241 43.511),

north eastern part of Peddavoora Schist Belt (PSB) has been

investigated. This granitoid forms a part of felsic basement of

Palnad Sub-basin, with in Cuddapah Basin. Eleven GPS

controlled samples were studied on certain petrological and

geochemical entities. The granitoid includes quartz, K-feldspar

and plagioclase as felsic phases and biotite, hornblende represent

ferromagnesian phases, and apatite, sphene, ilmenite occurs as

major mineralogical accessory constituents. The geochemical

discriminations of major, trace and REE have revealed their

affinity to A-type Granitoid (based on the ratio A/CNK (1.24-

1.66, avg 1.48) V/s A/NK (6.41-9.12, avg 7.91), (Shand 1943).)

Enrichment of LILE, and LREE, and positive to moderately

positive Eu anomaly, further confirms this. The Rajawaram

granitoid exhibiting these characters is located on the north

eastern portion of Peddavoora Schist Belt (PSB).

The geochemical signatures of trace elements with special

reference to Rb(69.24-228.31) vs Ta+Yb has clear bearing on

tectonic environment (Jayananda, M. 2006). Majority of these

plots with other ratios ie., Rb vs Y+Nb , Nb(1.96-12.35) vs

Y(5.22-31.78, avg 16.22) exhibits syn-collisional and volcanic

arc setting. However, Ta vs Yb ratios do not totally

acknowledge this setting.

The petro-chemical nature of this Granitoid indicates nature and

type of Anorogenesis, and pin points the tectonic environment of

formation and assign distinct type of granitoid at Rajawaram

area, Nalgonda Dt. Telangana State.

Keywords: Geochemical characterization, Type of granitoid,

tectonic evolution Rajaswaram area, Peddavoora Schist Belt.

Geology of the area

The area on the north eastern portion of Peddavoora Schist belt is

composed of banded, highly coarse grained granitoids intruded

by quartz, felspathic, epidote and ferruginous veins. Aluminum

saturated index for these granitoids indicated that they exhibit

meta aluminus nature (Hanumanthu et al 2007) (Fig.1).

Intense jointing manifested in three sets of jointing sometimes

develops fracture cleavage. Banding of feldspathic and

ferruginous material seldom become migmatitic (Fig.2) (Reddy,

U.V.B. 1991). Migmatised granitoids also show en-echelon

basic enclaves (Fig.3) (Mansoor Ahmad 2011) (Sesha Sai, V.V et

al 2010). Felsic and mafic enclaves are common and generally

occupy the defined structural planes. The foliated granitoids

occasionally exhibit thinning and thickening of the bands

(Moyen, L-F et al, 2003). Kaolinisation is observed as alteration

product when in contact with water.

Fig 1: Geological map of the Rajawaram area

Fig 2: Migmatised Granite

Fig 3: Lenses of Basic enclaves


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Fig 4: Close spaced jointing in Granite

Fig 5: Three sets of joints at Rajawaram area

Fig 6: Myrmekite texture in Granite

Fig 7: Granite showing kaolinised plagioclase, hornblende,

sphene and biotite

Fig 8: Granite showing altered plagioclase, along with

hornblende and biotite

Fig 9: Granite showing altered plagioclase, (kaolinisation)

sphene and epidote

Structure

The Peddavoora schist belt extends over a Strike length of 30 km

from Juvvigudem in the north to Ethipothala in the south east

separating the granitoids on its either side. Dolerite dykes

trending N-S, almost E-W and NNE-SSW cut across the schist

belt (Fig.4). The N-S dykes are prominent in the granitoids

occur along Western flank of the schist belt (Sesha Sai, V.V.

2004) (Babu, V.R.R.M. 2008). Whereas these trends are less

occurring along the eastern flank. The dykes observed in the area

around Rajawaram area are observed along E-W direction where

as west of Peddagattu are N-S. NE-SW trends are more

prominent in the eastern part (Fig.5). However ESE-WNW are

following this trend (Fig.10). Other trends are less prominent. A

rose diagram was shown in the Fig.11 (Rose diagram of the joint

pattern along the eastern part of PSB).


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Fig.10 Three sets of joints observed in the field.

Fig 11: Rose diagram of the joints in the area (N = 190)

There are displacements observed in the gneissic structure of the

granitoid particularly in the quartzo-felspathic veins prominently

indicating movement parallel to N-S in the area (Srinivasan, K.N

et al, 1995). Basic dykes cutting across the granitoids are also

more prominent along N-S along the western portion.

Petrography

The Rajawaram area, located on the eastern part of Peddavoora

Schist belt, is composed of coarse grained granite occasionally

banded / gneissic emplaced by quartz, felspathic, and epidote

veins. Close examination of the rock indicates existence of some

ferruginous veins. Aluminum saturated index (indicate the

value) calculated on this granitoid exhibits meta-aluminus nature.

The granitoid exhibits banding in which Quartzo-feldspathic and

ferromegnisian mineral bearing bands can be differentiated by

naked eye. Texturally the granitoid is coarse to moderately

grained and occasionally altered or kaolinised. Myrmekite

texture is occasionally present (Fig.6) (Ravi, et. al. 2011). The

granitoids are occasionally migmatised with basic enclaves of

older rocks. Petrographically the granitoid exhibits altered

plagioclase (Fig.7), hornblende, sphene, biotite (Fig.8) and

epidote (Fig.9). Quartzo-feldspathic veins generally occupy the

structural planes. thickness of the vein range in width from few

mm to few centimeters in the area. Foliation and lineation are

markedly visible on weathered surfaces with participation

minerals like, feldspars, hornblende and epidote. Basic dykes and

quartzo-feldspathic veins, observed along structural avenues,

facilitated emplacement.

Petro-chemistry

Petrologically these granitoids have been identified as

hornblende to biotite granite with more abundance of plagioclase

feldspar over K-feldspar (Orthoclase / microcline). These

granitoids show variable SiO2 (59.39 - 71.8% ), Al2O3 (14.16 –

18.57%), CaO (1.23 – 6.62%) , Na2O (3.89 – 6.06%), and MgO

(0.13 – 2.76%), Fe2O3 (0.93 – 7.88%), TiO2 (0.06 – 0.86%) and

K2O (1.03 – 5.1`8%), with low K2O/Na2O (0.215 – 1.08) The

high Al2O3, CaO, MgO and Na2O moderate to low K2O

content. The high TiO2 content (0.11-0.86, except one sample

analyzing 0.06%) is attributed to the presence of ilmenite / rutile

and biotite. (Na20+K2O) content in these samples ranges from

5.81to 9.95(Table.1). The high CaO, Na2O and moderate SiO2

content indicates (Pandey. A.K, 2012) the grano-diorite, tonalite

and even diorite phases.

Moderate to high SiO2, CaO, Na2O, MgO, Fe2O3 low K2O and

metaluminus (Shand 1943) (Fig.13) nature (A/CNK= 0.24 to

1.66 ), (Druppel. K et al 2009) presence of biotite, hornblende in

the mode and negative Ti, P and Nb indicates their arc

characters. The petro-mineralogy and geochemical

characterization of these granitoids indicate A-type character,

(Vijaya Kumar, K et al 2011) (Dwivedi, A.K et al, 2011). CaO

and Na2O abundance suggests abundant plagioclase. Ba and Sr

enrichment Rb, K and La indicates comparative nature with

typical crustal melts (Bouseily, 1975). Some samples indicate

very high content of Ba with high alumina, and as per Shand

diagram they can be observed as I/A (Chappel, et al,1974) type

granitoids.

Granitoid referred here include „Senso-stricto‟ granite –

adamalite – granodiorite - tonalite / trondhjimite, monzonite,

syenite (Harpum. J.R 1963). In the continental crust they are

volumetrically predominant and hence they can be selectively

identified with different mineralization viz Ag, Au, Ni, Cu, U

etc.. Although these elements are widely distributed in crustal

rocks, they are not abundant. In the relative abundance, they are

slightly more common (0 - <10ppm) than the precious metals

Ag, Au and Pt (0.001 to 0.1 ppm) and less abundant than Pb, Zn,

Cu or Ni (10-100 ppm). These rare elements, due to their

geochemically incompatible nature, (controlled by ionic size,

charge and electronegativity etc.) concentrate in acidic magma

/melt and residual fluids from which the granitoids originate

(Dobmeier, C et al, 2006).

The high CaO, Na2O and moderate SiO2 content indicate the

presence of granodiorite, tonalite and even diorite (De la Roche

et al, 1980). R1-R2 plot (De la Roche et al. 1980) shows majority

of samples in Granite-Granodiorite-Diorite (through tonalite)

field (Fig.12). Paleotectonic aspects based on Rb-Vs-(Y+Nb)

tectonic discrimination plot (after Pearce et al, 1984) (Fig.14)

occupy volcanic arc granite field. The ratio between 1000*Ga /Al

and elements like Y,Zr, Zn, Nb and Agpaitic Index and

K2O/Na2O of the granitoids belonging to the east side of PSB

have fallen in the A-type field (Whalen, 1987) (Fig.15).

Moderate to high SiO2, CaO, Na2O, MgO, Fe2O3 relatively less

K2O and metaluminus nature (A/CNK=1.24 to 1.66) the

presence of biotite, hornblende in the mode and negative Ti, P

and Nb further conforms arc characters. The petro-mineralogy

and geochemical characterization of these granitoids indicate

predominant A-type character.


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melteigite

theralite

alka

li gab

bro

gabbro

gabbro-noriteijolite

essexite syeno-

gabbromonzo-

gabbro

gabbro-

diorite

nepheline syenite

syeno-

diorite monzo-

nite

monzo-

diorite

diorite

syenite quartz

syenite alkali granite

quartz

monzonite

tonalite

granite

granodiorite

ultramafic rock

-1000 0 1000 2000 3000

0500

1000

1500

2000

2500

3000

R1 R2plotDelaRocheetal.1980

R1= 4Si - 11(Na + K) - 2(Fe + Ti)

R2=

6C

a +

2M

g +

Al

Y2

PE2 VN2

P5 P28

Metaluminous Peraluminous

Peralkaline

0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

01

23

45

67

A/CNK-A/NK plot (Shand 1943)

A/CNK

A/N

K

WR2

Y2PE2

YDT1

VN2 P28

1 2 5 10 20

10

50

200

1000

10000*Ga/Al

Zr

A

I & S

1 2 5 10 20

12

520

50

200

10000*Ga/Al

Nb

A

I & S

1 2 5 10 20

15

50

500

10000*Ga/Al

Ce

A

I & S

1 2 5 10 20

12

520

50

200

10000*Ga/Al

Y

A

I & S

1 2 5 10 20

15

50

500

10000*Ga/Al

Zn

A

I & S

1 2 5 10

0.6

0.8

1.2

1.6

10000*Ga/Al

Agpait

icI

nd

ex

A

I & S

Y+Nb

Rb

110

100

1000

1 10 100 1000

ORGVAG

WPGsyn-COLG

Y

Nb

110

100

1000

1 10 100 1000

ORG

VAG+

syn-COLG

WPG

Ta+Yb

Rb

110

100

1000

1 10 100

syn-COLG WPG

VAG ORG

Yb

Ta

0.1

110

100

0.1 1 10 100

syn-COLG

WPG

VAG ORG

The trace element contents of granitoids located on the eastern

side of PSB show different concentrations with moderate to low

content of HFSE that is normally Zr, Nb, Y, Th, U, Ga (Sun and

McDonough, 1984) (Fig.16). These granites have analysed low

to moderate content of Rb (69.24 - 228.31ppm)(Table.2). Cr

ranges from 8.48 to 228.57 ppm. Co, Ni exhibits an average

values of 20.89 ppm and 1.49 ppm (Dewashsis Upadhyay, 2008).

The enrichment of LREE and generally positive and occasionally

negative Eu anomaly (Table.3) (Nakamura, 1974) (Fig.17)

suggests that the source melts were generated with mixed

fractionation trends.

CONCLUSION

The Granitoid has significantly occupied the eastern portion of

PSB forming part of basement granite in the area below palnad

formations. Structurally they are controlled by a prominent NNE-

SSW trend. The plot of structural data (Rose diagram) exhibits

distinction of granitoids with defined trend. Petro-chemically the

granitoids located in and around Rajawarm area remarkably

exhibit distinct character ex: Alkali Granite, Grano-

diorite,(ademellite) Monzonite, Quartz- Monzonite and syenites.

The aluminium saturation index plot authentically correlated

with metaluminous nature and the spider diagram of minor and

trace element geochemical plot further confirms their affinity to

A-type Granitoid. Tectonic discrimination plots show that, these

granitoids occupy volcanic arc granite field. The petro-

mineralogical and geochemical characterization of these

granitoid indicates predominant A-type character. Major and

trace element distribution and REE exhibits parameters confirms

A-type granitoids.

Fig . 12 Majority of sample plots in Granite –

Granodiorite -Diorite (through tonalite) field.

(De la Roche et al 1980)

Fig .13 Majority of the samples exhibit

metaluminus nature. (Shand 1943)

Fig .14 Sample plots indicating volcanic arc setting of

tectonism (Pearce et al, 1984)

Fig. 15 Sample plots indicating A-type nature of

granitoids (Whalen et al, 1987)


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La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu

11

01

00

10

00

Sa

mp

le/ R

EE

ch

on

dri

te

Cs Rb Ba Th U Nb K La Ce Pb Pr Sr P Nd Zr Sm Eu Ti Dy Y Yb Lu

0.0

001

0.0

01

0.0

10.1

110

100

1000

10000

Sa

mp

le/ N

MO

RB

Fig .16 Normalised NMORB element spider diagram of

the granitoids (Sun and McDonough, 1984)

Fig . 17 Chondrite - normalised REE patterns of

Granitoids. With enriched HREE and Positive Eu

anomaly.(Nakamura,1974)

References

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Table.1 Major element analysis of Rajawaram Granitoid

Sample WR2 LT3 MT1 TG3 SY1 PE2 YDT1 VN2 P28 P5 Y2 Min Max Avg

SiO2 70.8 71.8 70.78 70.16 69.39 63.97 70.29 65.52 66.91 59.39 60.1 59.39 71.8 67.19

TiO2 0.12 0.12 0.11 0.06 0.3 0.53 0.2 0.4 0.35 0.86 0.54 0.06 0.86 0.33

Al2O3 14.87 14.8 15.41 16.21 15.26 14.44 15.06 15.21 15.93 18.57 14.16 14.16 18.57 15.45

Fe2O3(t) 1.78 1.59 1.57 0.93 2.72 5.51 2.18 4.45 3.8 5.05 7.88 0.93 7.88 3.41

Feo 1.602 1.431 1.413 0.837 2.447 4.958 1.962 4.004 3.419 4.544 7.09 0.84 7.09 3.06

Fe2O3 0.178 0.159 0.157 0.093 0.273 0.552 0.218 0.446 0.381 0.506 0.79 0.09 0.79 0.34

MnO 0.02 0.03 0.03 0.01 0.04 0.08 0.03 0.06 0.06 0.06 0.15 0.01 0.15 0.05

MgO 0.45 0.18 0.43 0.13 0.78 2.4 0.63 2.01 1.84 0.96 2.76 0.13 2.76 1.14

CaO 1.36 1.36 1.23 2.12 2.32 4.2 2.28 3.99 2.91 3.11 6.62 1.23 6.62 2.86

Na2O 4.19 4.46 5.49 6.06 5.17 3.89 5.54 4.39 4.41 4.77 4.78 3.89 6.06 4.83

K2O 4.45 4.3 3.63 2.36 2.52 3.54 2.48 2.02 2.26 5.18 1.03 1.03 5.18 3.07

P2O5 0.05 0.04 0.03 0.03 0.1 0.33 0.07 0.14 0.13 0.29 0.38 0.03 0.38 0.14

K2O/NA2O 1.06 0.96 0.66 0.39 0.49 0.91 0.45 0.46 0.51 1.09 0.22 0.22 1.09 0.65

(NA2O+K2O) 6.35 6.44 7.41 3.97 3.31 1.77 3.52 1.61 2.29 3.2 0.88 0.88 7.41 3.71

/CaO

NK 8.64 8.76 9.12 8.42 7.69 7.43 8.02 6.41 6.67 9.95 5.81 5.81 9.95 7.9

A/NK 1.72 1.69 1.69 1.93 1.98 1.94 1.88 2.37 2.39 1.87 2.44 1.69 2.44 1.99

CNK 10 10.12 10.35 10.54 10.01 11.63 10.3 10.4 9.58 13.06 12.43 9.58 13.06 10.77

A/CNK 1.49 1.46 1.49 1.54 1.52 1.24 1.46 1.46 1.66 1.42 1.14 1.14 1.66 1.44


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Table 2: Trace element analysis of Rajawaram Granitoid

Samp

le WR2 LT3 MT1 TG3 SY1 PE2

YDT

1 VN2 P28 P5 Y2 Min Max Avg

Sc 2.07 2.729 2.726 1.117 4.704 12.707 3.678 6.652 2.847 3.569 15.67

5 1.12 15.68 5.32

V 36.733 21.69 38.46

7

16.37

8

78.51

3

123.67

2

54.72

9

40.04

5

18.74

6

13.31

6

86.81

5

13.3

2

123.6

7 48.1

Cr 27.939 24.19

8

23.64

8

21.86

7

22.99

5 28.576

23.47

2

12.76

5

14.98

3 8.481

20.87

1 8.48 28.58 20.89

Co 4.989 3.952 4.58 1.962 9.766 23.138 7.206 13.68

7

10.67

1 7.238

33.60

3 1.96 33.6 10.98

Ni 0.909 0.75 0.836 0.664 1.015 2.959 1.216 2.144 1.32 0.395 4.256 0.4 4.26 1.5

Cu 1.399 0.279 0.352 0.246 0.523 0.911 0.363 0.36 0.269 0.244 1.678 0.24 1.68 0.6

Zn 24.859 35.53

5

32.65

4

18.77

2

22.61

8 39.211

29.20

2

30.48

1

25.19

4

23.52

2

67.67

8

18.7

7 67.68 31.79

Ga 33.723 36.49

5

26.52

9

27.15

6

36.27

1 26.689

30.13

1

24.40

9

20.87

1

21.56

8

38.32

5

20.8

7 38.33 29.29

Rb 169.61

4

220.9

61

149.8

13

69.24

3

121.0

95

228.31

5

111.6

28

125.9

39

74.11

7

103.2

05

103.2

53

69.2

4

228.3

2

134.2

9

Sr 215.42

2

192.7

31

209.4

43

427.9

33

424.8

74

480.65

9

406.5

89

308.2

19

268.0

05

318.4

66

249.1

4

192.

73

480.6

6

318.3

2

Y 13.402 23.47 13.57

5 5.257

14.99

3 31.786 9.288

17.19

4

17.12

7 41.51

101.7

95 5.26 101.8 26.31

Zr 83.422 84.92

6

69.45

5

54.81

8

144.5

4 70.984

113.3

88

66.53

8

94.97

1

134.8

66

55.07

7

54.8

2

144.5

4 88.45

Nb 8.716 12.30

8 7.255 1.968 8.138 12.353 7.055 9.974 7.836

21.85

3

15.18

6 1.97 21.85 10.24

Cs 1.565 2.509 1.642 0.654 1.38 8.877 1.245 3.486 0.861 0.762 1.965 0.65 8.88 2.27

Ba 1687.6

18

768.6

56

683.3

46

645.9

92

884.9

82

1470.2

13

752.0

73

643.3

42

602.2

81

1352.

41

239.5

14

239.

51

1687.

62

884.5

8

Y 13.402 23.47 13.57

5 5.257

14.99

3 31.786 9.288

17.19

4

17.12

7 41.51

101.7

95 5.26 101.8 26.31

Hf 3.113 3.326 2.691 1.728 4.196 2.403 3.462 2.297 2.894 3.412 2.771 1.73 4.2 2.94

Ta 0.592 0.778 0.565 0.127 0.599 0.575 0.222 0.782 0.785 1.64 1.683 0.13 1.68 0.76

Pb 22.704 28.63

3

21.77

4

21.57

5

23.64

9 28.53 23.26

19.99

3

23.29

5

16.34

1

19.93

1

16.3

4 28.63 22.7

Th 9.338 16.31

3 6.727 6.581

13.48

6 37.358 8.4

26.78

7

22.31

9 9.011 13.03 6.58 37.36 15.4

U 7.711 12.21

2 3.389 1.199 3.88 7.61 3.545 5.283 7.305 3.304 8.543 1.2 12.21 5.82

K 0.901 1.183 0.792 0.529 1.568 3.74 1.116 1.767 1.601 4.779 5.029 0.53 5.03 2.09

K(pp

m) 901 11830 792 529 11568 37400 11160 17670 16010 47790 50290 529 50290

18721

.8

K/Rb 5.312 53.53

9 5.287 7.64

95.52

8

163.80

9

99.97

5

140.3

06

216.0

1

463.0

59

487.0

56 5.29

487.0

6

157.9

6

Rb/Sr 0.787 1.146 0.715 0.162 0.285 0.475 0.275 0.409 0.277 0.324 0.414 0.16 1.15 0.48

Rb/B

a 0.101 0.287 0.219 0.107 0.137 0.155 0.148 0.196 0.123 0.076 0.431 0.08 0.43 0.18

Sr/Ba 0.128 0.251 0.306 0.662 0.48 0.327 0.541 0.479 0.445 0.235 1.04 0.13 1.04 0.44

Th/U 1.211 1.336 1.985 5.489 3.476 4.909 2.37 5.07 3.055 2.727 1.525 1.21 5.49 3.01


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Table 3: REE analysis of Rajawaram Granitoid

Sampl

e WR2 LT3 MT1 TG3 SY1 PE2 YDT1 VN2 P28 P5 Y2 Min Max Avg

La 22.18

4 19.095

10.42

5

10.79

6

30.32

1 79.824 23.289 38.2 38.242 43.008 41.489

10.4

3 79.82 32.44

Ce 35.90

7 32.77

19.31

6

19.22

6 5.291

139.09

3 40.363 67.155 67.614 94.908 91.949 5.29

139.0

9 55.78

Pr 3.241 3.258 2.121 1.89 5.032 14.074 4.062 6.553 6.481 12.243 11.566 1.89 14.07 6.41

Nd 11.86

6 12.883 8.746 7.181 19.91 54.091 15.473 24.571 23.069 55.169 52.312 7.18 55.17 25.93

Sm 2.197 2.885 1.932 1.291 3.824 9.121 2.722 4.309 3.904 11.656 12.265 1.29 12.27 5.1

Eu 1.597 0.928 0.591 0.606 1.131 2.192 0.81 1.058 0.786 6.266 2.294 0.59 6.27 1.66

Gd 2.019 2.593 1.611 1.147 3.23 8.138 2.205 3.97 3.521 8.844 10.703 1.15 10.7 4.36

Tb 0.317 0.488 0.272 0.165 0.43 1.003 0.28 0.52 0.477 1.338 1.995 0.17 2 0.66

Dy 2.017 3.391 1.716 0.872 2.43 5.305 1.468 2.89 2.677 7.539 14.357 0.87 14.36 4.06

Ho 0.22 0.394 0.204 0.095 0.257 0.558 0.152 0.313 0.305 0.807 1.681 0.1 1.68 0.45

Er 0.768 1.311 0.738 0.305 0.851 1.848 0.532 1.021 1.052 2.643 5.806 0.31 5.81 1.53

Tm 0.099 0.176 0.115 0.035 0.106 0.213 0.07 0.129 0.133 0.306 0.815 0.04 0.82 0.2

Yb 0.981 1.857 1.224 0.372 1.107 2.228 0.791 1.384 1.345 2.923 8.573 0.37 8.57 2.07

Lu 0.163 0.305 0.226 0.062 0.181 0.349 0.121 0.223 0.225 0.436 1.465 0.06 1.47 0.34

Eu/Eu

* 2.33 1.04 1.03 1.53 0.99 0.78 1.02 0.79 0.65 1.9 0.62 0.62 2.33 1.15

REE 96.97

8

105.80

4

62.81

2 49.3

89.09

4

349.82

3

101.62

6 169.49

166.95

8

289.59

6

359.06

5 49.3

359.0

7

167.3

2

LREE 75.39

5 70.891 42.54

40.38

4

64.37

8

296.20

3 85.909

140.78

8 139.31

216.98

4

209.58

1

40.3

8 296.2

125.6

7

HREE 19.98

6 33.985

19.68

1 8.31

23.58

5 51.428 14.907 27.644 26.862 66.346 147.19 8.31

147.1

9 39.99

petro-chemical studies of granitoid at rajawaram area, north … · 2016. 4. 24. · k2o (1.03 –...

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