Výsledky vyhledávání - "S. L. Kolling"

The tectonic history of a crustal-scale shear zone in the Tanzania Craton from the Geita Greenstone Belt, NW-Tanzania Craton

Autor: Thomas G. Blenkinsop, I. V. Sanislav, S. L. Kolling, Paul H.G.M. Dirks

Publikováno v: Ioan Sanislav

In this contribution, we present for the first-time field based evidence of a crustal scale shear zone from the southern margin of Geita Greenstone Belt. The Geita Shear Zone is a broad (∼800 m wide) ductile, high-strain, deformation zone that can

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The petrogenesis of the Neoarchean Kukuluma Intrusive Complex, NW Tanzania

Autor: I. V. Sanislav, Thomas G. Blenkinsop, S. D. Kwelwa, S. L. Kolling, Paul H.G.M. Dirks

Publikováno v: Ioan Sanislav

The Kukuluma Intrusive Complex (KIC) is a late Archean igneous complex, dominated by monzonite and diorite with subordinated granodiorite. The monzonite and the diorite suites have low silica content (SiO2 ≤ 62 wt%), moderate Mg# (Mg#average = 49),

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Zircon U-Pb ages and Hf isotope data from the Kukuluma Terrain of the Geita Greenstone Belt, Tanzania Craton: Implications for stratigraphy, crustal growth and timing of gold mineralization

Autor: Paul H.G.M. Dirks, S. D. Kwelwa, Thomas G. Blenkinsop, I. V. Sanislav, S. L. Kolling

Publikováno v: Ioan Sanislav

The Geita Greenstone Belt is a late Archean greenstone belt located in the Tanzania Craton, trending approximately E-W and can be subdivided into three NW-SE trending terrains: the Kukuluma Terrain to the east, the Central Terrain in the middle and t

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The structural history and mineralization controls of the world-class Geita Hill gold deposit, Geita Greenstone Belt, Tanzania

Autor: Paul H.G.M. Dirks, Yvonne Cook, I. V. Sanislav, M. Brayshaw, Thomas G. Blenkinsop, S. L. Kolling

Publikováno v: Ioan Sanislav

The Geita Hill gold deposit is located in the Archean Geita Greenstone Belt and is one of the largest gold deposits in East Africa. The Geita Greenstone Belt experienced a complex deformation and intrusive history that is well illustrated and preserv

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https://orca.cardiff.ac.uk/id/eprint/91322/1/GeitaHill.pdf

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Biotite chemistry and the role of halogens in Archaean greenstone hosted gold deposits: A case study from Geita Gold Mine, Tanzania

Autor: S. L. Kolling, I. V. Sanislav, Marwa I. Mturi, Jan Marten Huizenga, Matthew R. van Ryt, Paul H.G.M. Dirks

Publikováno v: Ore Geology Reviews. 111:102982

Geita Hill is one of the largest Tanzanian gold deposits, located southwest of Lake Victoria and ∼2 km along strike from the giant Nyankanga deposit. The deposit is hosted by metasedimentary rocks – dominated by ironstones and intruded by numerou

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https://doi.org/10.1016/j.oregeorev.2019.102982

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A Giant Gold System, Geita Greenstone Belt, Tanzania

Autor: Yvonne Cook, I. V. Sanislav, S. L. Kolling, Thomas G. Blenkinsop, Paul H.G.M. Dirks

Publikováno v: Acta Geologica Sinica - English Edition. 88:110-111

[Extract] Archean greenstone belts are a well-known source of gold deposits. If we ignore the giant Witwatersrand gold system we can confidently say that the majority of Archean gold comes from greenstone belts. Even though as a general rule greensto

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https://doi.org/10.1111/1755-6724.12368_21

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The geology of the giant Nyankanga gold deposit, Geita Greenstone Belt, Tanzania

Autor: I. V. Sanislav, Yvonne Cook, Marwa I. Mturi, Thomas G. Blenkinsop, Paul H.G.M. Dirks, S. L. Kolling, Roger Ruhega, Mathew Brayshaw

Publikováno v: Ioan Sanislav

Nyankanga is the largest gold deposit in the Geita Greenstone Belt of the northern Tanzania Craton. The deposit is hosted within an Archean volcano-sedimentary package dominated by ironstones and intruded by a large diorite complex, the Nyankanga Int

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https://researchonline.jcu.edu.au/37323/

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Archaean gold mineralization in an extensional setting: the structural history of the Kukuluma and Matandani deposits, Geita Greenstone Belt, Tanzania

Autor: S. L. Kolling, Paulus H. G. M. Dirks, Shimba D. Kwelwa, I. V. Sanislav, Thomas G. Blenkinsop

Publikováno v: Ioan Sanislav
Minerals; Volume 8; Issue 4; Pages: 171
Minerals, Vol 8, Iss 4, p 171 (2018)

Three major gold deposits, Matandani, Kukuluma, and Area 3, host several million ouncez (Moz) of gold, along a ~5 km long, WNW trend in the E part of the Geita Greenstone Belt, NW Tanzania. The deposits are hosted in Archaean volcanoclastic sediment

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https://researchonline.jcu.edu.au/53283/

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