- Project Runeberg -  Den Norske Nordhavs-expedition 1876-1878 / The Norwegian North-Atlantic Expedition 1876-1878 / 1. Bind /
28

(1880-1901) [MARC]
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sora tildels sees i Olivinkrystallerne. Det mørke med
korsvise, hvide Linjer, som sees indtrængende i Olivinen er urent,

slaggeagtigt Glas, det sorte Mineral i Omgivelsen er
Jern-ertskorn.

(magnifiing 360 diameters), will supplement the verbal
description. To avoid complexity in the drawing, I have left out
the fissures and the grains of iron ore that are seen in some
of the crystals of olivine. The dark substance, with intersecting
white lines, seen piercing the olivine, is discoloured, slaggy
glass, the black particles lying around, grains of iron ore.

Olivinkrystal i Basalt. — A Crystal of Olivine in Basalt, magnified.

Den omgivende Bergart er paafaldende finkornet indved
Krystallen og trænger i sækformede Forgreninger ind i denne.

Olivinkrystal i Basalt. — A Crystal of Olivine in Basalt, magnified.

Urent (xlas indtrængende fra den omgivende temmelig
finkornede Bergart.

Olivinkrystal i Basalt. — A Crystal of Olivine in Basalt, magnified.

Den omgivende Bergart er finkornet. Øverst paa Tegningen
sees Basalt af den herskende Kornighedsgrad. Urent Glas trænger
ind i Krystallen fra Omgivelsen.

Discoloured glass is seen piercing the crystal from the
surrounding rock, which has a fine granulation.

The surrounding base is finely granulated. — At the top of the
figure is seen basalt of the dominant degree of granulation.
Discoloured glass pierces the crystal from the rock surrounding it.

The surrounding rock exhibits a remarkably fine granulation
in immediate proximity to the crystals, which it pierces in sac-like
ramifications.

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