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Flow phenomena in a limestone on Changalumi hill, Southern Nyasaland1

By: Garson, M.S.
Material type: ArticleArticleDescription: 155-161p ; Illustration.Subject(s): Limestone - Changalumi hill - Southern Nyasaland | Geology - Changalumi hill - Southern Nyasaland | Petrology - Changalumi hill - Southern Nyasaland | Fold - Changalumi hill - Southern Nyasaland In: Geological magazine : Vol. 92 Iss. 1-6 Year. 1955Summary: Abstract A Basement Complex graphite-limestone on Changalumi Hill, along the eastern escarpment of the Southern Nyasaland rift-valley, exhibits various phenomena including contorted exotic boulders, migration of graphite, and injection of discordant veins into adjacent gneiss. These features indicate that the limestone has burst through its anticlinal roof during strong isoclinal folding at a relatively low temperature, engulfing and distorting a minor synclinal infold. The age of the break-through is proved to be pre-Chilwa Series and pre-Rifting.
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Article Article Library and Information Centre
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Bound Journal Collection Not for loan 002543_22
Serials/Scientific Journal Serials/Scientific Journal Library and Information Centre
Periodical Section
Bound Journal Collection 550 GEO (Browse shelf) Available 002543

Abstract
A Basement Complex graphite-limestone on Changalumi Hill, along the eastern escarpment of the Southern Nyasaland rift-valley, exhibits various phenomena including contorted exotic boulders, migration of graphite, and injection of discordant veins into adjacent gneiss. These features indicate that the limestone has burst through its anticlinal roof during strong isoclinal folding at a relatively low temperature, engulfing and distorting a minor synclinal infold. The age of the break-through is proved to be pre-Chilwa Series and pre-Rifting.

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