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Whundo Group

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Journal Article
Journal: Economic Geology
Published: 01 July 2002
Economic Geology (2002) 97 (4): 695–732.
... volcanics in the West Pilbara granite-greenstone terrane (Whundo Group), which have juvenile Nd isotope signatures and thus may represent either a rift or island-arc succession. Basaltic rocks and minor felsic tuff were deposited in the East Pilbara granite-greenstone terrane at 3.06 Ga and possibly...
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Trench section of the unconformable contact between the Purdy’s Reward cong...
Published: 01 May 2021
Fig. 4. Trench section of the unconformable contact between the Purdy’s Reward conglomerate and the Whundo Group basalts. The pencil marks the point of the contact, which in this field of view formed in a localized channel.
Image
F ig . 14. Schematic time line showing the geologic
      evolution of the ...
Published: 01 July 2002
, U = Ultramafic layered intrusions, W = Warrawoona Group, WC = Whim Creek Group, Wh = Whundo Group.
Journal Article
Journal: Economic Geology
Published: 01 May 2021
Economic Geology (2021) 116 (3): 629–650.
...Fig. 4. Trench section of the unconformable contact between the Purdy’s Reward conglomerate and the Whundo Group basalts. The pencil marks the point of the contact, which in this field of view formed in a localized channel. ...
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Further investigation into the settings of boninites that are most difficul...
Published: 07 June 2019
or inferred (A) intraplate and (B) subduction-related settings described in this study. The Gadwal craton parental boninites (e.g., Manikyamba et al., 2005 ) do not plot in the same field as the Whundo-type arc-basin boninites, with which they had been originally grouped. Instead, they have much higher MgO
Journal Article
Journal: Economic Geology
Published: 01 July 2002
Economic Geology (2002) 97 (4): 847–872.
.... 3130 to 3115 Ma Whundo Group to the south ( Hickman, 1997a , b ; Smith et al., 1998 ). The West Pilbara granite-greenstone terrane and the Central Pilbara tectonic zone also contain other mafic intrusions that are not coeval with the ca. 2.9 Ga layered intrusions. These include folded...
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Journal Article
Journal: Geosphere
Published: 07 June 2019
Geosphere (2019) 15 (4): 1008–1037.
... or inferred (A) intraplate and (B) subduction-related settings described in this study. The Gadwal craton parental boninites (e.g., Manikyamba et al., 2005 ) do not plot in the same field as the Whundo-type arc-basin boninites, with which they had been originally grouped. Instead, they have much higher MgO...
FIGURES | View All (13)
Journal Article
Journal: Economic Geology
Published: 01 January 2014
Economic Geology (2014) 109 (1): 11–26.
... 8.8 to 284 t/km 2 . When grouped according to crustal character, as indicated by lead and neodymium isotope variations, a systematic pattern emerges. Juvenile terranes, which include the Teutonic and Cue zones in the Yilgarn craton, the Whundo greenstone belt in the North Pilbara granite-greenstone...
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Ti8-Si8 diagram applied to the identification of boninites within the vario...
Published: 07 June 2019
Figure 10. Ti8-Si8 diagram applied to the identification of boninites within the various groups of low-Ti Archean lavas documented in Supplemental File 1 (text footnote 1 ; sections S7–S12). Data points are average compositions (see Table 2 for standard deviations). (A) Representative range
Journal Article
Journal: Geology
Published: 01 May 2012
Geology (2012) 40 (5): 451–454.
... element (LREE)-enriched basalts in the Whim Creek Belt and the Mallina basin of the West Pilbara ( Smithies et al., 2005 ; Smithies and Champion, 2000 ), are equally short-lived; the longest (in the Whundo group) not exceeding 20 m.y. A similar episodicity is observed in the Zimbabwe craton ( Rollinson...
FIGURES
Journal Article
Journal: Economic Geology
Published: 01 July 2002
Economic Geology (2002) 97 (4): 733–755.
... Formation: Clastic   Cleaverville Formation: Clastic   sedimentary rocks and banded   sedimentary rocks and banded   iron-formation   iron-formation 3130–3115     Whundo Group: Mainly mafic volcanic       rocks with lesser felsic volcanic rocks       and volcanogenic...
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Journal Article
Journal: Economic Geology
Published: 01 July 2002
Economic Geology (2002) 97 (4): 827–845.
... ( Fig. 2 ) unconformably overlies the ca. 3120 Ma Whundo Group that is elsewhere intruded by 3093 ± 4 Ma ( Nelson, 1997 ) granitoid gneiss. The Whim Creek Group is dominated by dacite intrusions into basalt lava and felsic-intermediate mass-flow–deposited volcanic breccia and sandstone. Its age...
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Journal Article
Published: 01 March 2021
South African Journal of Geology (2021) 124 (1): 141–162.
... to 2.7 Ga Youanmi terrane of the western Yilgarn craton ( Wyman and Kerrich, 2012 ) and the 3.12 Ga Whundo Group on the western edge of the Pilbara Craton ( Smithies et al., 2005b ). They differ in detail from Phanerozic arc assemblages, in particular by being less porphyritic and having a complex range...
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Journal Article
Published: 13 November 2007
Canadian Journal of Earth Sciences (2007) 44 (11): 1517–1535.
... and Dion 2002 — — Pilbara — Whundo Smithies et al. 2005 — — Greenland Isua Polat et al. 2002 — — Baltic Low-Ti tholeiite (LOTI) Superior Karelian — Shchipansky et al. 2004 — — Mariana trench, Lau Basin, New Guinea — Beccaluva and Serri 1988...
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Journal Article
Published: 14 March 2012
Canadian Journal of Earth Sciences (2012) 49 (4): 615–636.
... (Mg# 0.45–0.34; Ni 32–13 ppm), but lower Th and Yb. Given Nb contents of ∼3 ppm in typical intraoceanic arc basalts, but Nb 6.3–18 ppm in the studied samples, both basalt groups qualify as NEB, and notwithstanding the compositional gap, both plot collinearly on binary diagrams; accordingly...
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Journal Article
Journal: Economic Geology
Published: 01 July 2002
Economic Geology (2002) 97 (4): 787–800.
... , the Archean Mosquito Creek Formation was the only known significant host for lode Au and Au-Sb deposits in metasedimentary rocks in the Pilbara Craton. The bulk of Au won from the Pilbara Craton has been from the mafic volcanic rocks of the ca. 3475 to 3450 Ma Warrawoona Group rocks ( Hickman, 1983...
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Journal Article
Published: 01 March 2021
South African Journal of Geology (2021) 124 (1): 37–52.
... supracrustal successions dominated by metamorphosed volcanic and sedimentary rocks ( Figure 2 ). These supracrustal units include the perhaps up to 15 km-thick volcano-sedimentary successions of the ca . 3.53 to 3.17 Ga Pilbara Supergroup, itself comprising four autochthonous groups: the Warrawoona, Kelly...
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Journal Article
Journal: Economic Geology
Published: 01 May 2005
Economic Geology (2005) 100 (3): 603–612.
... 373 Major and trace element composition of copiapite-group minerals and coexisting water from the Richmond mine, Iron Mountain, California— Heather E. Jamieson, Clare Robinson, Charles N. Alpers, R. Blaine McCleskey, D. Kirk Nordstrom, and Ronald C. Peterson 387 Secondary sulfate minerals...
Journal Article
Journal: GSA Bulletin
Published: 20 September 2021
GSA Bulletin (2021)
...), and on (Grosch et al., 2011; de Wit et al., 2011). One The Kaapvaal province of South Africa is one the west by the Kheis overthrust belt (ca. 2.0 Ga). of the best examples is the Onverwacht Group of the oldest Archean segments in the cratons The north-central Kaapvaal craton was disrupted which includes...
Journal Article
Journal: Economic Geology
Published: 01 September 2009
Economic Geology (2009) 104 (6): 793–814.
... of epithermal deposits is dominantly a result of preservation, not process. The North Pole Dome exposes the 3.52-to 3.43-Gyr-old Warrawoona Group, a bedded volcanosedimentary succession that was intruded by granite in the core of the dome and numerous dikes and sills of diverse but dominantly felsic...
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