Výsledky vyhledávání

Inhomogeneous distribution of lithic clasts within the Daskop granophyre dike, Vredefort impact structure: Implications for emplacement of impact melt in large impact structures

Autor: Elizaveta Kovaleva, Stephen A. Prevec, Martin D. Clark, M. S. Huber

The Vredefort granophyre dikes have long been recognized as being derived from the now-eroded Vredefort melt sheet. One dike, in particular, the Daskop granophyre dike, is notable for a high abundance of lithic clasts derived from various stratigraph

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::89c3518520b7da8103763d48e0a2ec57
https://doi.org/10.1130/2021.2550(10)

Zobrazit plný text záznamu

New field, geochemical, and petrographic evidence from the Bon Accord nickel body: Contamination of a komatiite by deep mantle or meteorite source?

Autor: M. S. Huber, Frederick Roelofse, Christian Koeberl, M. Tredoux

The Bon Accord nickel body has been known since the 1920s to contain rocks with up to 50 wt% NiO. Numerous nickel-rich minerals have been described from this deposit. However, none of these minerals contains significant Cu or S, making the deposit ch

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a090a42846e8ea28a86033381a69cc2a
https://doi.org/10.1130/2021.2550(13)

Zobrazit plný text záznamu

Post-Impact Faulting of the Holfontein Granophyre Dike of the Vredefort Impact Structure, South Africa, Inferred from Remote Sensing, Geophysics, and Geochemistry

Autor: Francois Fourie, Elizaveta Kovaleva, Martin D. Clark, Chris Harris, M. S. Huber

Publikováno v: Geosciences
Geosciences, Vol 11, Iss 96, p 96 (2021)
Volume 11
Issue 2

Better characterization features borne from long-term crustal modification processes is essential for understanding the dynamics of large basin-forming impact structures on Earth. Within the deeply eroded 2.02 Ga Vredefort Impact Structure in South A

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a37d2aa67a43083e8a588c527d5955fd
http://hdl.handle.net/11427/35267

Zobrazit plný text záznamu

Comparative study of pseudotachylite microstructures in felsic and mafic rocks from the Vredefort impact structure, South Africa. Implications for the experimental studies

Autor: M. S. Huber, Elizaveta Kovaleva, Lidia Pittarello, Francois Fourie

Publikováno v: South African Journal of Geology. 121:403-420

While the formation of tectonic PTs is widely accepted as related to friction melting for all rock types, the mechanism of formation of impact-related pseudotachylites (PTs) is strongly debated. Moreover, the influence of the target lithology on the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::66c7d8ae199310483bea9f418d7f3e09
https://doi.org/10.25131/sajg.121.0025

Zobrazit plný text záznamu

Petrography and geochemistry of coarse-crystalline veins within Vredefort Granophyre, Vredefort impact structure, South Africa

Autor: Elizaveta Kovaleva, Federica Zaccarini, M. S. Huber

Publikováno v: South African Journal of Geology. 121:383-402

Vredefort Granophyre dykes are generally considered to be a part of impact melt, which intruded downward from the melt sheet of the Vredefort impact structure (South Africa). This work reports enigmatic textural inhomogeneities found within the Dasko

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0562017b95fbb140979c1e9b44f9bf9e
https://doi.org/10.25131/sajg.121.0023

Zobrazit plný text záznamu

Volcanological and petrogenetic characteristics of komatiites of the 3.3 Ga Saw Mill Complex, Weltevreden Formation, Barberton Greenstone Belt, South Africa

Autor: M. S. Huber, Gary R. Byerly

Publikováno v: South African Journal of Geology. 121:463-486

The Saw Mill Complex (SMC) is a 1 275 m thick layered komatiitic sequence in the 3.3 Ga Weltevreden Formation, uppermost stratigraphic unit of the Onverwacht Group in the northern part of the Barberton Greenstone Belt, South Africa. A series of ultra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d6757fdd5f4b9a4307bcfd6d388bf7dc
https://doi.org/10.25131/sajg.121.0031

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání