220 
Analysis of Ilimausak porphyry and related rocks. 
23 A B С 
Он ote 49:64 49°24 53°12 54:0 
О 4°25 1°84 "25 2:0 
AO er 13°74 15°84 20°48 18:9 
LACET PATER 7-10 6:09 5:15 1-3 
ке ciel as 4-97 718 1°50 
MNO ss? an ‘03 29 "4 
MEO! ес 1°58 3°02 1°88 7 
ВАО 21 ‘09 
Bares: 4°88 5:26 4-29 5:8 
а нь 6°33 5°21 6°20 6°5 
КФ: dr 4°42 2°10 4°88 3°9 
H,O above 110° | ‘81 1'61 2°25 2:32 
В.О 2 110°... | ‘14 1:08 
BOSS TAST. 1:57 1-47 "43 
Totale 99:67 10046! | 100°83? 100°3 
SP. Er... 2892 | 249 2684 
23. Ilimausak porphyry, Hatten, Ilimausak, South Greenland. 
. Mugearit, Druim na Criche, Skye. 
. Trachyte (tephritic), Columbretes Islands, Spain. 
. Rhomb-porphyry, Brumun Valley, Norway. 
С. Winteer, analyst. 
W. Pottarp, analyst (A. 
Harker, Tertiary Igneous Rocks of Skye, 1904, р. 263). 
В. Prout, 
analyst (Е. Веске, Tschermak’s mineral. u. petrogr. Mitteil- 
ungen XVI, 1896, p. 168). 
Н. Bäckströn, 
analyst (Bihang till K. Svenska Vetenskaps-Akad. Handl. XIV, 
Il, №. 3, 1888, р. 11). 
? Including F 0°18 and $ 0°03 but less 0:07 (0 =F). 
? Including Cl 028 and SO, 0 14. 
3 Loss on ignition, 
