trace element study of the xenoliths study of the mantle xenoliths from sytykanskaya pipe, yakutia....
TRANSCRIPT
Trace element study of the xenoliths study of the mantle xenoliths From Sytykanskaya pipe, Yakutia.
Igor Ashchepkov (1), Theodoros Ntaflos (2), and Zdislav Spetsius (3)(1) Institute of Geology and Mineralogy, Geodynamics, Novosibirsk, Russian Federation
([email protected]), (2)University of Vienna, Austria, (3) Alrosa Stock Company, Mirny, Russia
Dalnyaya
Udachnaya
Zarnitsa
Sytykanskaya
C
D
EF
B
A
Pyropes from Breccia and Porphyric kimberlite
0 2 4 6 8 10 12
Cr2O 3%
0
4
8
12
Ca
O%
0 2 4 6 8 10 12
Cr2O3
4
8
12
16
FeO
%
0 2 4 6 8 10 12
Cr2O 3%
0
0.4
0.8
1.2
1.6
2
TiO
2%
0 2 4 6 8 10 12
Cr2O3
8
12
16
20
24
Mg
O%
0 2 4 6 8 10 12
Cr2O 3%
0
0.05
0.1
0.15
0.2
0.25
Na
2O%
0 2 4 6 8 10 12
Cr2O 3%
0
0.2
0.4
0.6
Mn
O%
0 2 4 6 8 10 12
Cr2O3
0
4
8
12
Ca
O%
0 2 4 6 8 10 12
Cr2O3
4
8
12
16
Fe
O%
0 2 4 6 8 10 12
Cr2O3
0
0.4
0.8
1.2
1.6
2
TiO
2%
0 2 4 6 8 10 12
Cr2O3
8
12
16
20
24
Mg
O%
0 2 4 6 8 10 12
Cr2O3
0
0.05
0.1
0.15
0.2
0.25
Na
2O%
0 2 4 6 8 10 12
Cr2O3
0
0.2
0.4
0.6
Mn
O%
S ytykan pyropes
BrecciaXenolithsDiam ond inclusions
Porphyric kim berliteXenoliths inalyzed by LAM ICP
CHROMITES
2 4 6FeO %
0
1
2
3
4
5
Cr 2
O3
%
2 4 6FeO %
0
0.2
0.4
0.6
0.8
1
TiO
2 %
2 4 6
2
4
6
Na
2O %
2 4 6
4
8
12
Al 2
O3
%
8 16MgO %
2
4
6
8
10
Na
2O %
ConcentrateXenolithsMetasomatites with richteriteDiamond inclusionsPyroxente and veined xenolith with ICP data
Veined xenoliths with Ilm
2 4 6FeO %
0
1
2
3
4
5
Cr 2
O3
%
2 4 6
FeO %
0
0.2
0.4
0.6
0.8
1
TiO
2 %
2 4 6
2
4
6
Na 2
O %
2 4 6
4
8
12
Al 2
O3
%
8 16MgO %
2
4
6
8
10
Na 2
O %
ConcentrateXenolithsMetasomatites with richteriteDiamond inclusions
Diamond Eclogites (Spetsius, 2008; Pernet-Fisher et al.,2014)
600 800 1000 1200 1400
600 800 1000 1200 1400
SEA
T oC
GraphiteDiam ond
D a ln y a y a
45 m w /m 2
35 m w /m 2
Sp
Gr
40 m w /m 2
8
7
6
5
4
3
2
1
0
P(G
Pa)
8
7
6
5
4
3
2
1
P(G
Pa)
AOpxG
T oC
8
7
6
5
4
3
2
1
P(G
Pa)
Z a rn itsa
8
7
6
5
4
3
2
1
P(G
Pa)
600 800 1000 1200 1400
SEA
T oC
GraphiteDiam ond
U d a ch n a y a
45 m w /m 2
35 m w /m 2
Sp
Gr
40 m w /m 2
1. OpxMc742. Cpx As103. Cpx NT004. Gar As105. Chr As106. Ilm As7. BrKo90
8
7
6
5
4
3
2
1
P(G
Pa)
8
7
6
5
4
3
2
1
P(G
Pa)
600 800 1000 1200 1400
SEA
T oC
S y ty k a n sk a y a
45 m w /m 2
35 m w /m 2
Sp
Gr
40 m w /m 2
Diam ond
Graphite
8
7
6
5
4
3
2
1
0
P(GPa) 8
7
6
5
4
3
2
1
AFG
0.10
1.00
10.00
100.00
Sam
ple
/PM
Rb Th Nb La Pb Nd Sm Zr Gd Ho Er Lu
0.01
0.10
1.00
10.00
100.00
1000.00
Sam
ple
/PM
Clinopyroxenes
Ilm enites from the feeders at the SCLM base
Ce Nd Sm Gd Dy Er Yb Cs Ba U Ta Ce Pr Sr Hf Eu Dy Y Yb
La Pr Eu Tb Ho Tm Lu
0.01
0.10
1.00
10.00
100.00
Sam
ple
/PM
Ce Nd Sm Gd Dy Er Yb
Ce Nd Sm Gd Dy Er Yb Rb Th Nb La Pb Nd Sm Zr Gd Ho Er Lu
0.00
0.01
0.10
1.00
10.00
100.00
1000.00
Sam
ple
/PM
Cs Ba U Ta Ce Pr Sr Hf Eu Dy Y Yb Rb Th Nb La Pb Nd Sm Zr Gd Ho Er Lu
0.00
0.01
0.10
1.00
10.00
100.00
1000.00
Sam
ple
/PM
Concentrate
La Pr Eu Tb Ho Tm Lu
0.10
1.00
10.00
100.00
Sam
ple
/PM
Garnets
Ce Nd Sm Gd Dy Er Yb Cs Ba U Ta Ce Pr Sr Hf Eu Dy Y YbLa Pr Eu Tb Ho Tm Lu Ce Nd Sm Gd Dy Er Yb
Rb Th Nb La Pb Nd Sm Zr Gd Ho Er Lu
0.00
0.01
0.10
1.00
10.00
100.00
Sam
ple
/PM
Chrom ites
Ce Nd Sm Gd Dy Er Yb Cs Ba U Ta Ce Pr Sr Hf Eu Dy Y YbLa Pr Eu Tb Ho Tm Lu
0.01
0.10
1.00
10.00
100.00
Sam
ple
/PM
Rb Th Nb La Pb Nd Sm Zr Gd Ho Er Lu
0.00
0.01
0.10
1.00
10.00
100.00
1000.00
10000.00
Sam
ple
/PM
La Pr Eu Tb Ho Tm Lu
0.01
0.10
1.00
10.00
100.00
Sam
ple
/C1
Rb Th Nb La Pb Nd Sm Zr Gd Ho Er Lu
0.00
0.01
0.10
1.00
10.00
100.00
1000.00
Sam
ple
/PM
Garnets
Ce Nd Sm Gd Dy Er Yb Cs Ba U Ta Ce Pr Sr Hf Eu Dy Y Yb
Cs Ba U Ta Ce Pr Sr Hf Eu Dy Y Yb
La Pr Eu Tb Ho Tm Lu
0.01
0.10
1.00
10.00
100.00
Sa
mp
le/C
1
La Pr Eu Tb Ho Tm Lu
0.10
1.00
10.00
100.00
Sam
ple
/C1
Ce Nd Sm Gd Dy Er Yb Rb Th Nb La Pb Nd Sm Zr Gd Ho Er Lu
0.00
0.00
0.01
0.10
1.00
10.00
100.00
Sam
ple
/PM
Ce Nd Sm Gd Dy Er Yb Rb Th Nb La Pb Nd Sm Zr Gd Ho Er Lu
0.00
0.01
0.10
1.00
10.00
100.00
1000.00
10000.00
Sam
ple
/PM
Cs Ba U Ta Ce Pr Sr Hf Eu Dy Y Yb
1 . 2 . 3 . 4 . 5 .
Clinopyroxenes Sytykan Veined Peridotite xenoliths
La Pr Eu Tb Ho Tm Lu
0.01
0.10
1.00
10.00
100.00
Sam
ple
/C1
Ce Nd Sm Gd Dy Er Yb Rb Th Nb La Pb Nd Sm Zr Gd Ho Er Lu
0.00
0.01
0.10
1.00
10.00
100.00
1000.00
10000.00
Sam
ple
/PM
Cs Ba U Ta Ce Pr Sr Hf Eu Dy Y Yb
Chrom ites
Phlogopites
0.001
0.01
0.1
1
10
100
Cs Rb Ba Th U Nb Ta La Ce Pb Pr Nd Sr Sm Hf Zr Eu Gd Dy Ho Y Er Yb Lu
Sam
ple
/PM
S15 S16
0.001
0.01
0.1
1
10
100
1000
Cs Rb Ba Th U Nb Ta La Ce Pb Pr Nd Sr Sm Hf Zr Eu Gd Dy Ho Y Er Yb Lu
Sam
ple
/PM
S17 S19 S20
0.001
0.01
0.1
1
10
100
1000
10000
Cs Rb Ba Th U Nb Ta La Ce Pb Pr Nd Sr Sm Hf Zr Eu Gd Dy Ho Y Er Yb Lu
Sam
ple
/PM
S26 S27
0.001
0.01
0.1
1
10
100
Cs Rb Ba Th U Nb Ta La Ce Pb Pr Nd Sr Sm Hf Zr Eu Gd Dy Ho Y Er Yb Lu
Sam
ple
/PM
S28 S29
0.001
0.01
0.1
1
10
100
1000
10000
Cs Rb Ba Th U Nb Ta La Ce Pb Pr Nd Sr Sm Hf Zr Eu Gd Dy Ho Y Er Yb Lu
Sam
ple
/PM
S30 S31
0.001
0.01
0.1
1
10
100
Cs Rb Ba Th U Nb Ta La Ce Pb Pr Nd Sr Sm Hf Zr Eu Gd Dy Ho Y Er Yb Lu
Sam
ple
/PM
S32 S33
0.001
0.01
0.1
1
10
100
1000
10000
Cs Rb Ba Th U Nb Ta La Ce Pb Pr Nd Sr Sm Hf Zr Eu Gd Dy Ho Y Er Yb Lu
Sam
ple
/PM
S35 S36 S37
0.001
0.01
0.1
1
10
100
1000
10000
Cs Rb Ba Th U Nb Ta La Ce Pb Pr Nd Sr Sm Hf Zr Eu Gd Dy Ho Y Er Yb Lu
Sam
ple
/PM
S35 S36 S37
0.001
0.01
0.1
1
10
100
Cs Rb Ba Th U Nb Ta La Ce Pb Pr Nd Sr Sm Hf Zr Eu Gd Dy Ho Y Er Yb Lu
Sam
ple
/PM
S38 S39
c
Trace Element patterns for minerals from Breccia xenocrysts and Metasomatic xenolith
La Pr Eu Tb Ho Tm Lu
0.01
0.10
1.00
10.00
100.00
1000.00
10000.00
Sam
ple
/PM
Rb Th Nb La Pb Nd Sm Zr Gd Ho Er Lu
0.01
0.10
1.00
10.00
100.00
1000.00
10000.00
Sam
ple
/PM
Garnets
Ilm enites
Ce Nd Sm Gd Dy Er Yb Cs Ba U Ta Ce Pr Sr Hf Eu Dy Y Yb
Cs Ba U Ta Ce Pr Sr Hf Eu Dy Y Yb
La Pr Eu Tb Ho Tm Lu
0.01
0.10
1.00
10.00
100.00
1000.00
10000.00
Sam
ple
/PM
La Pr Eu Tb Ho Tm Lu
0.01
0.10
1.00
10.00
100.00
1000.00
Sam
ple
/PM
Ce Nd Sm Gd Dy Er Yb Rb Th Nb La Pb Nd Sm Zr Gd Ho Er Lu
0.01
0.10
1.00
10.00
100.00
1000.00
Sam
ple
/PM
Ce Nd Sm Gd Dy Er Yb Rb Th Nb La Pb Nd Sm Zr Gd Ho Er Lu
0.01
0.10
1.00
10.00
100.00
1000.00
10000.00
Sam
ple
/PM
Cs Ba U Ta Ce Pr Sr Hf Eu Dy Y Yb
Clinopyroxenes
Sytykan parental melts for minerals from Veined Peridotite xenoliths
0.01
0.10
1.00
10.00
100.00
1000.00
10000.00
Sa
mp
le/P
M
Rb Th Nb La Pb Nd Sm Zr Gd Ho Er Lu
0.01
0.10
1.00
10.00
100.00
1000.00
10000.00
Sam
ple
/PM
Clinopyroxenes
Ilm enites
Ce Nd Sm Gd Dy Er Yb Cs Ba U Ta Ce Pr Sr Hf Eu Dy Y Yb
La Pr Eu Tb Ho Tm Lu
0.01
0.10
1.00
10.00
100.00
1000.00
10000.00
Sam
ple
/PM
Ce Nd Sm Gd Dy Er Yb
Ce Nd Sm Gd Dy Er Yb Rb Th Nb La Pb Nd Sm Zr Gd Ho Er Lu
0.01
0.10
1.00
10.00
100.00
1000.00
10000.00
Sam
ple
/PM
Cs Ba U Ta Ce Pr Sr Hf Eu Dy Y Yb
Melts parental for the xenocrysts from concentrate
Garnets
Ce Nd Sm Gd Dy Er Yb Cs Ba U Ta Ce Pr Sr Hf Eu Dy Y YbLa Pr Eu Tb Ho Tm Lu
0.01
0.10
1.00
10.00
100.00
1000.00
10000.00
Sa
mp
le/P
M
Ce Nd Sm Gd Dy Er Yb Rb Th Nb La Pb Nd Sm Zr Gd Ho Er Lu
0.01
0.10
1.00
10.00
100.00
1000.00
10000.00
Sam
ple
/PM
La Pr Eu Tb Ho Tm Lu
Dal
nya
ya
Zag
ado
chn
aya
Ilm
en
ito
va
ya
Irel
yakh
skay
a
Do
lgo
zhd
ann
aya
Aka
dem
ich
eska
ya
Ud
ac
hn
ay
a
Po
lya
tna
ya
Fe
sti
va
lna
ya
Ae
rom
ag
nit
na
ya
Go
rny
ats
ka
ya
Bu
ko
vin
sk
ay
a
Zar
nit
saO
se
nn
ya
ya
Zim
ny
ay
aL
en
ny
ay
a
Ma
lyu
tka
Ne
vid
imk
a
Len
ing
rad
skay
a
Geo
ph
ysic
hes
kaya
Ya
ku
tsk
ay
a
Uk
rain
sk
ay
a
Ko
ms
om
ols
ka
ya
Sy
tyk
an
sk
ay
a
Oze
rnay
a
Kra
sn
op
res
ne
ns
ka
ya
Ay
kh
al
Za
rya
No
ya
brs
ka
ya
Fa
ins
hta
ino
vs
ka
ya
So
bo
lev
a
Ra
dio
vo
lno
va
ya
Ap
rels
ka
ya
Mo
lod
os
t
Yu
bil
ey
na
ya
8
7
6
5
4
3
2
1
0
Fe#All Silicates and ChrCrust
8
7
6
5
4
3
2
1
0
0 20 40 60 80 100 120 140 160Distance km
0 20 40 60 80 100 120 140 160Distance km
-5
-4 .6
-4 .2
-3 .8
-3 .4
-3 .2
-2 .8
-2 .4
-2
-1 .6
-1 .2
-0 .8
-0 .4
0
0.225
0.3
8
7
6
5
4
3
2
1
0
0 20 40 60 80 100 120 140 160Distance km
20025030035040045050055060065070075080085090095010001050110011501200125013001350140014501500
1.522.533.544.555.566.577.588.51012131420253035
W est Daldyn (Alakit field)East Daldyn (Daldy field)
FO2 for Silicates and ChrCrust
ToC for Silicates and Chr
Detail study of the mantle xenoliths from Sytykan pipe were performed for the Cpx- Phl- Sp -Ilm associations (>30) commonly substituting garnets and rarely containing richterites. eclogites (3), and Ilm- Gar pyroxenites as well as f or the Cr—Di bearing websterites and clinopyroxenites containing graphites (8). Most of the metasomatites and pyroxenites belong to the middle part of the mantle section and refer to the straight line rather low temperature (1000 at 6.0GPa) geotherm. Majority of the garnets in the show the semi circle patterns with the low Sr LREE and LILE but peak in Pb and U and small enrichments in some LILE. But Cpx substituting them sometimes vary in major element compositions and TRE also reveal Nb-Ta troughs and slightly lower in Zr-Hf but Rb-Ba enrichments. The Phl in such associations commonly have very low REE concentration but very high Ba, Rb ,Cs but level of the Th-U-Nb-Ta nearly close to those from the CPx. The amphiboles have th TRE patterns close t those of Cr- diopsides but enrichment in Ta- Nb but much less in Zr-Hf. He Low Cr Ilm-Gar pyroxenite show nearly flat TRE patterns for the Cpx and ilmenites and strong TRE depletion for garnets. The Cpx show enrichment in Th-U and smaller on in HFSE as well garnet reveal elevated U-Nb-Ta and all minerals shows slightly higher Rb-Cs but depletion in Ba. One of the intergranular grains from eclogites show the composition derived from protokimberlite and show 700 enrichment in LREE relative to primitive mantle and very deep Nb-Ta and Zr-Hf troughs due to Ilm precipitation but slightly elevated Ba-Th-U. The eclogites don’t show very special distributions from Cat-Cpx showing slightly lower concentrations of the incompatible elements and small peaks in U, Pb and even Rb-Cs. The Cr-diopside bearing websterites from garnet Cr-bearing pyroxenites show different enrichments in REE highly inclined and straight line patterns and deep troughs in Ba and varying enrichment in Nb-Ta-U which are lower than REE. Those with lower TRE levels reveal Zr-Hf dips. Garnets from the pyroxenites show more straight line patterns than those from common lherzolites and pyroxenites from alkali basalts They are characterized by deep troughs of Ba, Sr, and small Pb, U, small dips in Zr and Hf and quite different levels of Ta, Nb with general enrichment. Thus the metasomatic association and Cr- bearing pyroxenites probably were formed by the same probably agents enriched in LILE and U probably included the reactivated subducted related materials RBRF grants 05-05-64718, 03-05-64146; 08-05-00524; 11-05-00060; 11-05-91060-PICS and joint research projects of IGM SB RAS and ALROSA Stock company 77-2, 65-03, 02-05.
Fig.2. Photo images of the mantle xenoliths from Sytykanskaya pipe. A. Fine-grained granular garnet lherzolite. B. Coarse-grained granular garnet lherzolite. C. Deformed garnet peridotite. D. Details of garnet lherzolites: Cpx corona on garnet. E. Metasomatic microveins and coronas of Cpx and Phl on garnets. F. Sp harzburgite. G. Garnet harzburgite with disseminated idiomorphic phlogopite. H. Garnet dunite. I Garnet harzburgite with Phl . J. Serpentinized garnet-bearing harzburgite with abundant intergranular Ilmenite. K. Details of substitution of garnet grains by Cpx-Phl-Ilm aggregates. L. Phl-Cpx-Ulvospinel-Ilm veinlets in peridotites. M. Garnet harzburgite with garnet partly substituted by Phl and Cpx. N. Garnet harzburgite with disseminated Ilm and Phl. O. Deformed ilmenite peridotite.
P o rph yric k im b erlite
40 44 48 52
T iO 2 %
0.0
0.4
0.8
1.2A l2O 3 %
40 44 48 52
T iO 2 %
0
2
4
6C r2 O 3 %
30
40
50
60 T i O 2 %
0 4 8 12 16 20
M gO %
0 % F e2 O 3
20 % F e2O 3
40 % F e2O 3
40 44 48 52
T iO 2 %
20
30
40
50
60F eO %
40 44 48 52
T iO 2 %
0.0
0.1
0.2
0.3 N iO %
40 44 48 52
T iO 2 %
-0.2
0.0
0.2
0.4
0.6
0.8V 2O 5 %
40 44 48 52
T iO 2 %
0.0
0.2
0.4
0.6
0.8 M n O %
B recc ia
40 44 48 52
T iO 2 %
0.0
0.4
0.8
1.2 A l2 O 3 %
40 44 48 52
T iO 2 %
0
2
4
6C r2 O 3 %
30
40
50
60 T i O 2 %
0 4 8 12 16 20
M gO %
0 % F e2O 320 % F e2O 3
40 % F e2 O 3
40 44 48 52
T iO 2 %
20
30
40
50
60F eO %
40 44 48 52
T iO 2 %
0.0
0.1
0.2
0.3 N iO %
40 44 48 52
T iO 2 %
-0.2
0.0
0.2
0.4
0.6
0.8V 2O 5 %
40 44 48 52
T iO 2 %
0.0
0.2
0.4
0.6
0.8 M n O %
Porphyric kim berliteBrecciaXenolithsMetasom atites with richteritePyroxenites veined xenoliths and breccia xenocrysts with ICP Data
Ilmenitesfrom Breccia and Porphyric kimberlite
0 20 40 60
C r2 O 3 w t %
0
0.2
0.4
0.6
0.8
1
Mn
wt%
0 20 40 60
C r2 O 3 w t %
0
0.2
0.4
0.6
0.8
V2O
5 w
t %
0 20 40 604
8
12
16
20
24
28
MgO
wt%
0 20 40 600
10
20
30
40
50
60
FeO
wt %
0 20 40 600
10
20
30
40
50
Al 2
O3
wt%
0 20 40 60
C r2 O 3 w t %
0
4
8
12
16
TiO
2 w
t %
0 20 40 60
C r2 O 3 w t %
0
0.1
0.2
0.3
0.4
0.5
NiO
wt %
BrecciaXenolithsPorphyric kim berliteDiam ond inclusionsPyroxente and veined xenolith with ICP data
Clinopyroxenes
1. CaO in Gar2. Al2O 3 in Opx3. Cr2O3 in Cpx4. TiO 2 in Chr5. Cr2O3 in Ilm
0.05 0.10 0.15 0.20 0.25 0.30 0.35600 800 1000 1200 1400
Fe# Ol in equilibrium with Cpx, Opx, Gar, Chr, Ilm
0.0 4.0 12.0 16.0 -6.0 -4.0 -2.0 0.0
SEA
T oCS y ty k a n sk a y a X en o lith s
45 m w /m 2
35 m w /m 2
Sp
Gr
40 m w /m 2
Diam ond
Graphite
8
7
6
5
4
3
2
1
0
P(GPa) 8
7
6
5
4
3
2
1
P(GPa) 8
7
6
5
4
3
2
1
P(GPa) 8
7
6
5
4
3
2
1
0-LogFO 2
Variation of Cpx, Opx, Gar, Chr, Ilm
AFG
EM
OG
/D
0.05 0.10 0.15 0.20 0.25 0.30 0.35600 800 1000 1200 1400
Fe# Ol in equilibrium with Cpx, Opx, Gar, Chr, Ilm
0.0 4.0 12.0 16.0 -6.0 -4.0 -2.0 0.0
SEA
T oCS y ty k a n sk a y a P o rp h y r ic
k im b er lite
45 m w /m 2
35 m w /m 2
Sp
Gr
40 m w /m 2
Diamond
Graphite
1. CaO in Gar2. Al2O 3 in Opx3. Cr2O3 in Cpx4. TiO 2 in Chr5. Cr2O3 in Ilm
8
7
6
5
4
3
2
1
0
P(GPa) 8
7
6
5
4
3
2
1
P(GPa) 8
7
6
5
4
3
2
1
P(GPa) 8
7
6
5
4
3
2
1
0-LogFO 2
Variation of Cpx, Opx, Gar, Chr, Ilm
AFG
1. O pxBrM c2. O pxBrM cDiIn3. CPx NT004.CpxAs5.EclCpx6.PxtCpx7.DI Cpx 8.GarOW 79As9.GarDI10.ChrAs11. ChrDiaInc 12. Ilm M eg13. Ilm Xen14. BrKo90 E
MO
G/D
0.05 0.10 0.15 0.20 0.25 0.30 0.35600 800 1000 1200 1400
Fe# Ol in equilibrium with Cpx, Opx, Gar, Chr, Ilm
0.0 4.0 12.0 16.0 -6.0 -4.0 -2.0 0.0
SEA
T oCS y ty k a n sk a y a A u to lith ic
B recc ia
45 m w /m 2
35 m w /m 2
Sp
Gr
40 m w /m 2
Diam ond
Graphite
1. CaO in Gar2. Al2O 3 in Opx3. Cr2O3 in Cpx4. TiO 2 in Chr5. Cr2O3 in Ilm
8
7
6
5
4
3
2
1
0
P(GPa) 8
7
6
5
4
3
2
1
P(GPa) 8
7
6
5
4
3
2
1
P(GPa) 8
7
6
5
4
3
2
1
0-LogFO 2
Variation of Cpx, Opx, Gar, Chr, Ilm
AFG
EM
OG
/D
0.01
0.10
1.00
10.00
100.00
Sam
ple
/PM
Clinopyroxenes
Ce Nd Sm Gd Dy Er Yb Cs Ba U Ta Ce Pr Sr Hf Eu Dy Y Yb Ce Nd Sm Gd Dy Er Yb
Garnets
Chromites
La Pr Eu Tb Ho Tm Lu Rb Th Nb La Pb Nd Sm Zr Gd Ho Er Lu
0.00
0.01
0.10
1.00
10.00
100.00
Sam
ple
/PM
0.01
0.10
1.00
10.00
100.00
Sam
ple
/PM
Ce Nd Sm Gd Dy Er Yb Cs Ba U Ta Ce Pr Sr Hf Eu Dy Y Yb Ce Nd Sm Gd Dy Er Yb La Pr Eu Tb Ho Tm Lu
Rb Th Nb La Pb Nd Sm Zr Gd Ho Er Lu
0.00
0.01
0.10
1.00
10.00
100.00
Sam
ple
/PM
0.01
0.10
1.00
10.00
100.00
Sam
ple
/PM
Ilmenite
Ce Nd Sm Gd Dy Er Yb Cs Ba U Ta Ce Pr Sr Hf Eu Dy Y Yb Ce Nd Sm Gd Dy Er Yb
Concentrate
La Pr Eu Tb Ho Tm Lu Rb Th Nb La Pb Nd Sm Zr Gd Ho Er Lu
0.00
0.01
0.10
1.00
10.00
100.00
1000.00
Sam
ple
/PM
Phl
Trace Element patterns for minerals from Pyroxenite xenoliths and Glimmeritic veins 6 8
Si (f.u.)
0
0.1
0.2
0.3
0.4
Cr
(f.u
.)
6 8Si (f.u.)
0
0.05
0.1
0.15
0.2
0.25
Ti
(f.u
.)
6 8
0.004
0.008
0.012
0.016
0.02
Mn
(f.
u.)
6 8
1
2
3
Al
(f.u
.)
1. Sytykan2. Yubileinaya3. Zarnitsa4. Komsom olskaya
6 8
0.6
0.8
1
1.2
1.4
1.6
1.8
Ca
(f.u
.)
0.5K2O%
0.8
1
1.2
1.4
1.6
1.8
Na
(f.u
.)
6 8FeO %
0.2
0.4
0.6
0.8
K (
f.u
.)
6 8Si
1
1.2
1.4
1.6
1.8
2
2.2
K+
Na
(f.
u.)
Pa
rga
sit
e
Pa
rga
sit
e h
orb
len
de
Ho
rble
nd
e
Ric
hte
rite
Pa
rga
sit
e
Ho
rble
nd
e
Ric
hte
rite
Pa
rga
sit
e h
orb
len
de
6 8
0.2
0.3
0.4
0.5
0.6
Fe
(f.
u.)
6 8
3.2
3.6
4
4.4
4.8
5.2
Mg
(f.
u.)
Amphiboles
2 4 6 8FeO %
0
0.5
1
1.5
2
2.5
Cr 2
O3 %
2 4 6 8
FeO %
0
2
4
6
TiO
2 %
2 4 6 8
16
20
24
28
32
Mg
O%
2 4 6 8
10
12
14
16
18
Al 2
O3 %
2 4 6 8
0.2
0.4
0.6
0.8
1
Na 2
O %
2 4 6 8FeO %
32
36
40
44
48
SiO
2 %
1. Pyroxenite xenoliths (with LAM ICP data)2. Peridotite xenoliths3. Veined Ilm peridotites
Phlogopites
Trace elements for minerals from metasomatic vein s(new)