Документ взят из кэша поисковой машины. Адрес оригинального документа : http://geo.web.ru/conf/alkaline/2007/34.pdf Дата изменения: Sat May 23 16:32:02 2009 Дата индексирования: Tue Aug 18 13:19:28 2009 Кодировка:

lnK

1.0
D

T=6 50 C , P =2 T=7 50 C , P =2

0.0

. Mg Fe =650

2. 750° =2 .

-1.0 ? -2.0 0.0 0.2 0.4 0.6 Cpx 0.8 1.0

XMg

, , ( ) , ­ - . Mg Fe =650 750° =2 lnKD (. 2):

1. =600-750° =1.5-2 Mg Fe ­ . 2. . 3. , =650 750°, =2 , - ­ - . 4. lnKD =650 750°, =2 . , 06-05-64904, 07-05-00217, -2948.2006.5, -3499.2006.5 .
1. .., .. . .: , 1976. 287 .


.., .., .. , 142432, , ., . , . 4, e-mail: kovalsky@iem.ac.ru, ./:(49652)44425

- - . -- . 109
" " http://geo.web.ru/

ht tp :// geo .w eb .ru/
T=650°C T=750°C

lnKD = 0.0137611 · X(Mg)Cpx - 0.257398 lnKD = 0.105541 · X(Mg)Cpx - 0.0231298


ht tp :// geo .w eb .ru/
Qz
Cpx

- - . . . + , , Ni + NiO, + . , . / 10-20. =600 700° =1 2 , 27 21 . : =450 750° =1-1.5 31 . - =650° =2 , - 21 . ( ) ( 2-3 550°), - ( 5844, 5844 5889) ( 5799). - =700° =1.5 25 . . . HZG-4 . (=5.4307 [A]). . SPECTR. 19-36 7-43[°](). LCC, PUDI, REFLAT.

Cpx

Cpx

. 1. 5941. Na0.18Ca0.78Fe2+0.81Fe3+0.28Si1.95O5.86.

. 1. 5944. Na0.72Ca0.28Fe2+0.21Fe3+0.86Si1.93O5.57.

110
" " http://geo.web.ru/


- Hed-Aeg ( 20-50 ), - . ( 5 .%) . (. 1, ). , . , 650° =2 . ­ [1], ­ =1200-1400° =30-40 . ­ , PDF-2. ­ . 1 . 2. , [1].
. 1. ­ (X () ). 5844a 5844b 5889 5941 5942 5943 5944 5799 5633 XAeg 0 0 0 .24 .51 .56 .79 1 1 a, [A] b, [A] 020 019 023 967 926 903 851 794 797 c, [A] 250 249 248 253 261 274 280 290 296 , [o] . . . . . . . . . 80 79 83 39 78 15 44 42 41 V, [A3] . . . . . . . . . 8 9 7 9 7 1 1 4 3 (1 (1 (1 (1 (1 (1 (3 (1 (1 ) ) ) ) ) ) ) ) )

ht tp :// geo .w eb .ru/
0 0 0 0 9. 9. 9. 9. 9. 9. 9. 9. 9. 847(1) 851(1) 846(1) 797(1) 775(1) 757(1) 728(3) 650(1) 658(1) 9. 9. 9. 8. 8. 8. 8. 8. 8. (1 (1 (1 (1 (1 (1 (1 (2 (1 ) ) ) ) ) ) ) ) ) 5 5 5 5 5 5 5 5 5 . . . . . . . . . (1 (1 (1 (1 (1 (1 (2 (1 (1 ) ) ) ) ) ) ) ) ) 104 104 104 105 105 106 106 107 107 (1 (1 (1 (1 (1 (1 (2 (1 (1 ) ) ) ) ) ) ) ) )

Aeg

-

450 450 450 444 441 440 436 428 429

- 30 26 31 32 29 33 19 26 36

, . ­ : a = 9.84497 - 0.104972 · XAeg - 0.0823278 · (XAeg)2 [A]; b = 9.02214 - 0.183327 · XAeg - 0.0433729 · (XAeg)2 [A]; c = 5.24777 + 0.0233369 · XAeg + 0.0225974 · (XAeg)2 [A]; = 104.827 + 1.53415 · XAeg + 1.01039 · (XAeg)2 [°]; V = 450.595 - 14.991 · XAeg - 6.44665 · (XAeg)2 [A3];

XAeg - () . ­ , ­ . 111
" " http://geo.web.ru/


10.00 9.90 9.80 9.70 9.60 0.0 9.10 9.00 8.90 8.80 8.70 0.0 5.50 5.40 5.30 5.20 5.10 0.0 0.2 0.4 0.2 0.4 0.6 0.2 0.4 0.6

a, [A]

0

108.0 107.0 106.0

1 2 3

, [ ]
0

0.8

1.0

b, [A]

0

105.0 104.0 0.0 0.2 0.4 0.6 0.8 1.0

V, [A3]
0.8 1.0 450.0

0

c, [A]
425.0

0

. 2. - : 1 ; 2 ­ [1], 3 - [1].

- ( 30­50 ) ­ . ( 5 .%) . . , - 700° .
9.80 9.70 9.60 9.50 0.0 9.00 8.90 8.80 8.70 0.0 5.40 5.30 5.20 5.10 0.0 0.2 0.4 0.6 0.8 1.0 0.2 0.4 0.6 109.0 108.0 107.0 106.0 105.0 0.0 0.2 0.4 0.6 0.8 1.0

ht tp :// geo .w eb .ru/
XA
a, [A]
0

0.6 Cpx eg

0.8

1.0

0.0

0.2

0.4

0.6 Cpx XAeg

0.8

1.0

, [ ]
0

0.2

0.4

0.6

0.8

1.0

b, [A]
0.8 1.0
0

0

445.0 440.0 435.0 430.0 425.0 0.0 0.2 0.4 0.6

V, [A ]

3

c, [A]

0.8

1.0

X

Cpx (Di-Aeg) Mg

X
112

Cpx (Di-Aeg) Mg

. 3. - .

" " http://geo.web.ru/


( ), 50 .% ( ). ­ , PDF-2. -, . 3. - : a=9.6549+0.13995x-0.170640x2+0.128691x3 [A]; (Ex=0.002) b=8.7981+0.09919x+0.191485x2-0.158424x3 [A]; (Ex=0.003) c=5.2907+0.076116x-0.53581x2+0.409533x3 [A]; (Ex=0.008) =107.439-3.80397x+6.813875x2-4.536063x3 [°]; (Ex=0.07) V=428.72+26.194x-58.00903x2+42.07155x3 [A]3 (Ex=0.8)

x ­ , Ex ­ . - ( ­ ), . ( =700°) . - (a, V): x =527.1-2288.6 (a-9)+3294.83 (a-9)2-1571.491 (a-9)
3

x=-6.108+1.2896 (V-430)-0.08679 (V-430)2+0.002029 (V-430)

x ­ - . 2-4 .%. , 06-05-64904, 07-05-00217, -2948.2006.5, -3499.2006.5 .
1. Redhammer G.J., Amthauer G., Roth G., Tippelt G., Lottermoser W. Single-crystal X-ray diffraction and temperature dependent 57Fe MЖssbauer spectroscopy on the hedenber gite-a egirine (Ca,Na)(Fe2+,Fe3+)Si2O6 solid solution // Amer. Mineral. 2006. V. 91. pp. 1271-1292.

ht tp :// geo .w eb .ru/
3

113
" " http://geo.web.ru/