I I 6 I'MNTll KSKOl.A. M.-X. Kl. 



Explanation of the plates. 



i\ll Uic |)li(jlomicrogra[)hs were taken willi un])olari/-ed lig'ht. Magnif. 14 diam. 



PI. 1. 



Fig. T. Eclogite from olivinc-rock. Almklovdak-n. Garnet and clinopyroxene. 



Fig. 2. Chloromt-lanite-eclogitc of the Duen type. Vanelvsdalen. Garnet with zonal 

 structure (not visible in tlic reproduction) and cliloromeianite. The dark boundary lines con- 

 sist ol" diopsidc-plagioclase-s^'mplectite. 



Fig. 3. Olivine-eclogite, Lyngenes, Sorpoll, Selje. Garnet, clinopyroxene and olivine. 



Fig. 4. Eclogite, Silden, Selje. Garnet, clinopyroxene, quartz and a little biotite 

 and rutile. 



Fig. 5. Fclogite-hornblendegabbro, Romsdalshorn. (Jarnet la large crystal in the lower 

 liain, plagioclasc (light), pyroxene (gray grams in the upper half, in part intergrown with 

 the plagioclase)^ biotite (a large individual), hornblende (with the garnet) and black iron ore. 



Fig. 6. Enstatite-eclogite, Sætre on Hareid. The clinopyroxene is greatly altcrsd into 

 diopside-plagiochise-symplectite (dark boundaries). Tiie light grains with almost black boundary- 

 zones are enstatite. 



PI. II. 



Fig. 7. Eclogite, Gursko. Alteration into diopside-plagiocIase-s3'niplectite (appears dark) 

 n the clinopyroxene works inwards v\-itli sinuous boundaries. 



Fig. 8. Eclogite, Lcinekiven, Boland. Greater part of the clinopyroxene has altered 

 into diopside-plagioclase-symplectite. 



Fig. 9. Eclogite, Sætre on Hareid. Greater part of the clinopyroxene has altered into 

 diopside-plagioclase-symplectite. Garnet as elongated grains with kelyphite shells, remains of 

 clinopyroxene, and enstatite (with black alt.^ration zone, lower left hand side). 



Fig. 10. Eclogite, biotite-bearing. Coarse-structured diopside-plagioclase-symplectite, and 

 zones of hornblende-kelyphite round the garnet. Hegerskjaeret, Hustadviken. 



Fig. II. Garnet-amphibolite, formed bj' alteration of eclogite. All the pyroxene in 

 the earlier diopside-plagioclase-symplectite has been uralitized. Thick zones oi hornblende- 

 kelyphite are seen around the residual garnet. Silden, Selje. 



Fig. 12. Kelyphite-amphibolite, from eclogite. Only small remains of garnet have been 

 left. The rutile has altered into ilmenite. Silden, Selje. 



PI. III. 



Fig. 13. Fclogite-hornblendegabbro, Brandsæter, Kornstadfjord. The interstices of the 

 idiomorphic garnets are filled up with a granular mass of hornblende and plagioclase. 



Fig. 14. Garnet and clinopyroxene in saussuriti/ed labradorite-rock. Both minerals are 

 surrounded by zones of hydrated minerals. Mjeldem near Arnevaag, Bergen. 



Fig. 15. "Hypersthene-eclogite" with xenomorphic garnet (light). The largest ps'roxene- 

 grains are clinopyroxene. Holseno. 



Fig. 16. Amphibolite-eclogite, Arne, Bergen. 



Fig. 17. Garnet-amphibolite, Kantalahti, Kola. Composed of garnet (with inclusions of 

 quartz), hornblende, biotite, quartz, titanite and iron-ore. 



