‹ Mémoire sur la cristallisation et la structure intérieure du quartzChapitre 20 sur 24 · FACES ISOLÉES · texte numérisé non relu

FACES ISOLÉES

Incidencaf observées.

62" moyeDne.

46» environ.

De'^= iBo*» 5' 160» i5'

De* = 139» 53' i4o» 3o' envhon.

pD, = i37»35'

D, c * = 1 42» 3 1 ' 1 42» environ.

Zone e*, Dn D, e* .

eop = i35® 5' 1 35** 20' moyenne

coe' =2 i36« 16' i36° i5'

coe' adjacent =: i5i** 6' i5i**

eoe* latéral = i48« 46' i48^ 35'

Zone e\ w, e* latéral, w = {d' d^' b^').

Incidences calculées.

Kp= i46» 39'

ou: ^ I

Çp= US'

Ke' adjacents 162® i4'

ou: ^ 1

?«•= lôi'a'

Ze*' adjacent = i^g* /l^'

ou: / 1

Çe^s i6o«5/l'

Ç = (6" rf* rf-) : zone e\ Ç, e^,

ou:

Ç = ((f d* ft'), hémi-isocéloèdre.

ou: i47* i3' I

ou: i49® 11'

Ç,e' adjacents 162® 66',

ou: 162® 35' 1 I

ou: i63^ 54'.

Çi c • adjacent = 1 49® 1 9'

ou: 149* 22' } I

ou: i48** 20'

Ç,e* adjacent = i49° 34'

K, =(b' d^ d^) :zone e\ Ç,, e"^,

ou:

Ç. =(6' d'rf"):zonee', Ç,, e\

Incideoces calculées. Incidences observées.

ep= 158° 35' //

ae" = i68® Ay' iGg"" 3o' environ.

Zones 5, u, e'' , el p, a, a.

Rc ' = 1 69** 56' I 70^ environ.

Zone 5, R, ^ ' .

Oe ' = 1 69*^ 7' 1 70° environ.

Zone «, 4>, e ' .

Ûp = i35» 35' i35» 3o'

ile ' adjacent = i48** 4o' i48^ environ.

îîe* latéral = 1 5 1*^ 3' 1 5 1® 3o' environ.

Zone e\ x, û, e* latéral.

ap = I 1 6** 4' 1 1 6** 4' moyenne.

ae^ z= i42** 17' i42** 4i'

ae* adjacent = 176^ 3^' 176^ 3 1'

Ap= i44^8' //

Ae* = 1 38** 39' 139^ environ.

Zone e*, a, A, x, e ' .

Incidences calculées. Incidences observées.

Me' = i39» 19' iSg» 18'

Me' i63« 9' 162" 4o'

Zone M, e'. II,, x.

*e* = 169° Aa' 169° 45'

*e" =: iSa" 46' i32° 3o'

'*•/) = lAa» 44' i4a° 35'

Zone c^ ■*• f M (p e^ X.

Ze' = 176° 69' 177** 3o' environ.

Zone X, E, e\

zp = 146° 28' "

ou:

zp = 1 46° 1 5' '

ze'^= 176» 4'

ou: I '76° i' moyenne.

ze^= 176» 33'

z = (6* d' d"^'), ou z = {b^'èd%

ou:

Sp = i45° 42' //

Ineidences calculées. IncideDceB observées.

Se* == 177» 19' 1

ou: ) ^n° 1 5' moyenne.

Se^ = »77° >' '

il il

2 =(6* </' d') : zone x, z,,z. S, c* ; ou:

2 =a=(6" (f rf"):ionea;, S, g"^.

Zone X, £,, e".

-^p = 1 73® 24' 1 73** ao' moyenne.

ou: I 169° 4i' moyenne.

X, = [b" è d% ou : X, = (6"* d').

Zone/>, X' X" X«' X»' ^•

(pe' adjacent = i3i" 20' 131° 18'

(pc'= i7i«8' 171» 4'

Zones/), (p, y, et /, (p, e' .

/[> =zz I 16** 4o' 1 16M2'

Incidences calcul<$es. Incidences observ^e^.

le' = i4a" 46' i42° 47'

«,/) =110» 34' ii5° 28'

i,p= II 4'' 38' 114" 4i'

i/'c' adjacent =: i46° 2' i46» environ.

ipé' adjacent = lôa" 53' i53° 35' environ.

np = 1 53° 7' //

ne' = 169° 43' 169» 45'

Ile* = 1 36° 4' "

Zonee', H, a, >//, i, i,, i,, c*.

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