Identification of Anorthite-enriched Plagioclase Antecrysts in the Bushveld Complex, South Africa

Autor: R. Grant Cawthorn

Publikováno v: Journal of Petrology. 60:1109-1118

The origin of cumulate grains in layered intrusions is actively debated. Earliest views assumed that all grains grew in the now-exposed magma chamber. An alternative view is that some grains were injected from deeper magma chambers (never to be expos

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::abe76db79cfca441b9dda76e0f071978
https://doi.org/10.1093/petrology/egz025

Two expressions of the transition from mafic cumulates to granitoids in the Bushveld Complex, South Africa:Examples from the western and eastern limbs

Autor: Ole Skursch, Charles E. Lesher, R. Grant Cawthorn, Christian Tegner

Publikováno v: Skursch, O, Tegner, C, Lesher, C E & Cawthorn, R G 2020, ' Two expressions of the transition from mafic cumulates to granitoids in the Bushveld Complex, South Africa : Examples from the western and eastern limbs ', Lithos, vol. 372-373, 105671 . https://doi.org/10.1016/j.lithos.2020.105671

In the Bushveld Complex of South Africa, numerous granitic and granophyric rocks termed the Lebowa Granite and Rashoop Granophyre Suites, respectively, overlie the layered ultramafic-mafic rocks of the Rustenburg Layered Suite. Despite their close sp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6fbcbfa68338716f3a500f0325495ee
https://pure.au.dk/portal/da/publications/two-expressions-of-the-transition-from-mafic-cumulates-to-granitoids-in-the-bushveld-complex-south-africa(c48d5a66-cbf3-4e1f-9e58-3ae6b3b4aa69).html

Source and evolution of the alkaline Pilanesberg Complex, South Africa

Autor: Marlina Elburg, R. Grant Cawthorn

Publikováno v: Chemical Geology. 455:148-165

The Pilanesberg Complex (South Africa) is one of the world's largest but least studied alkaline complexes. It consists of trachytes, phonolites, syenites and nepheline syenites (foyaites) and the preservation of the volcanic carapace makes it unique

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8561e9477fc588ee69eeab00bd1a1470
https://doi.org/10.1016/j.chemgeo.2016.10.007

Massive pyroxene compositional oscillations on a metre scale in the Pyroxenite Marker, northern limb, Bushveld Complex, South Africa

Autor: R. Grant Cawthorn

Publikováno v: Lithos. :105392

In the Main Zone of the Bushveld Complex, South Africa, there is an horizon known as the Pyroxenite Marker that shows major reversals in mineral compositions, demonstrating significant addition of more primitive magma into the chamber. This layer has

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::324432ece905e4dbe1b4d93a8470a98f
https://doi.org/10.1016/j.lithos.2020.105392

Modeling incompatible trace-element abundances in plagioclase in the Skaergaard intrusion using the trapped liquid shift effect

Autor: Christian Tegner, R. Grant Cawthorn

Publikováno v: Cawthorn, R G & Tegner, C 2017, ' Modeling incompatible trace-element abundances in plagioclase in the Skaergaard intrusion using the trapped liquid shift effect ', Contributions to Mineralogy and Petrology, vol. 172, no. 11-12, 93 . https://doi.org/10.1007/s00410-017-1411-8

Incompatible trace-element abundances in minerals and whole rocks from layered intrusions have been used to model the fractionation processes and evolving liquid compositions. Many such models assume that the analyzed concentration in a mineral repre

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c234f6b5c699a048e508e7af8e7c9b33
https://doi.org/10.1007/s00410-017-1411-8