A structural sequence in low strain sedimentary rocks in the Beaufort Group of the south-western Karoo and its bearing on syngenetic and epigenetic mineralization
dc.contributor.author | Halbich I.W. | |
dc.date.accessioned | 2011-05-15T15:59:21Z | |
dc.date.available | 2011-05-15T15:59:21Z | |
dc.date.issued | 1994 | |
dc.description.abstract | Several sets of planar and linear structures are described from the very gently folded Karoo strata of the northern-most tectonic zone of the Permo-Triassic Cape Fold Belt. The superposition of these structures reveals a time sequence. Horizontal compression occurred before compaction was complete. After compaction further horizontal compression developed a sequence of structures that are readily interpreted in terms of visco-elastic strain in multilayers. This analysis reveals that a set of mainly antithetic kinks in the form of monoclines developed out of earlier incipient sinusoidal macrofolds during the final stages of horizontal N-S compression. The model is in agreement with evidence for synsedimentary folding that controlled the sites for erosion channels as well as the direction of sedimentary transport. Exploration efforts for syngenetic and/or fluid controlled epigenetic mineralization in permeable strata of this fluviatile sedimentary sequence should be directed along certain structural lines. © 1994. | |
dc.description.version | Article | |
dc.identifier.citation | Journal of African Earth Sciences | |
dc.identifier.citation | 18 | |
dc.identifier.citation | 3 | |
dc.identifier.issn | 8995362 | |
dc.identifier.uri | http://hdl.handle.net/10019.1/11136 | |
dc.subject | Beaufort Group | |
dc.subject | compression | |
dc.subject | epigenetic mineralization | |
dc.subject | structural geology | |
dc.subject | syngenetic mineralization | |
dc.subject | synsedimetnary folding | |
dc.subject | South Africa, Cape Province, Karoo Basin | |
dc.title | A structural sequence in low strain sedimentary rocks in the Beaufort Group of the south-western Karoo and its bearing on syngenetic and epigenetic mineralization | |
dc.type | Article |