The Hangnest Dolerite Sill, S.A
By: Walker, S
.
Contributor(s): Poldervaart, A.
Material type: 
ArticleDescription: 429 - 450 pp ; Illustration.Subject(s): Dolerite - cape province - Africa | Petrogenesis - cape province - Africa | Hangnest dolerite
In:
Geological magazine : Vol. 78 Iss. 1-6 Year. 1941Summary: A 500 ft. sill of dolerite from Hangnest in the Calvinia division of the Cape Province (South Africa) exemplifies very clearly two well-marked features of the thicker Karroo sills:—
(1) Very slight amount of crystallization-differentiation.
(2) Marked tendency to mobilize and react with the associated shales and siltstones.
A petrological and chemical study of this sill is given and the mechanism of the various processes discussed.
| Item type | Current location | Collection | Call number | Status | Date due | Barcode |
|---|---|---|---|---|---|---|
Article
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Library and Information Centre Periodical Section | Bound Journal Collection | Not for loan | 002564_42 | ||
Serials/Scientific Journal
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Library and Information Centre Periodical Section | Bound Journal Collection | 550 GEO (Browse shelf) | Available | 002564 |
A 500 ft. sill of dolerite from Hangnest in the Calvinia division of the Cape Province (South Africa) exemplifies very clearly two well-marked features of the thicker Karroo sills:—
(1) Very slight amount of crystallization-differentiation.
(2) Marked tendency to mobilize and react with the associated shales and siltstones.
A petrological and chemical study of this sill is given and the mechanism of the various processes discussed.
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