https://vital.seals.ac.za/vital/access/manager/Index ${session.getAttribute("locale")} 5 https://vital.seals.ac.za/vital/access/manager/Repository/vital:6069 Wed 27 Sep 2023 13:28:08 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:27631 Wed 27 Sep 2023 12:41:28 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:33821 Wed 12 May 2021 23:49:24 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:6733 1000-m-thick layered mafic intrusion, part of the Karoo Igneous Province in South Africa. The peridotitic and gabbronoritic rocks are undeformed and mineral fabrics demonstrably result from magma flow. A horizontal, centimeter-scale model layering is visible in numerous outcrops. Plagioclase crystals are both tabular and elongated. Their preferred orientation, parallel to the layering, forms a foliation and a NW–SE lineation, respectively interpreted as the magma flow plane and flow direction. Throughout the 78 stations of this study (699 specimens), magnetic susceptibilities (K[subscript m]) range from 750 to 10,000×10[superscript (−6)] SI. The magnetic anisotropy (P[subscript j]) ranges from 1.03 to 1.08. Magnetic ellipsoids are both prolate and oblate (average T[subscript j]≈0). Anisotropy of magnetic susceptibility (AMS) fabrics are dominated by multidomain to pseudo-single domain magnetite. High-field magnetic experiments indicate that the paramagnetic contribution from the mafic silicates is less than 50 percentage for low susceptibility rock types. The anisotropy results from magnetite grain shape solely as shown by no significant increase in P[subscript j] with increasing K[subscript m]. The magnetic lineation (305°, 05°) is consistent throughout the sill at various scales and coincides with the mineral lineation in average. In contrast, the magnetic foliation (125° NE 10°) is generally perpendicular to the mineral foliation and to the layering. Several explanations for this odd configuration are discussed. The variations of magnetic parameters across the layering and field observations point to a multiple injection. The magnetic lineation is consistent with the presence of a single feeder dike situated to the SE of the sill.]]> Wed 12 May 2021 23:40:31 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:33728 Wed 12 May 2021 23:32:09 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:38806 Wed 12 May 2021 22:47:24 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:33932 Wed 12 May 2021 22:18:33 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:671 Wed 12 May 2021 20:58:01 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:32107 Wed 12 May 2021 20:57:57 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:37556 Wed 12 May 2021 20:56:13 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:37663 Wed 12 May 2021 20:26:49 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:33893 Wed 12 May 2021 20:25:45 SAST ]]> 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