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Sholl shear zone

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Journal Article
Journal: Economic Geology
Published: 01 July 2002
Economic Geology (2002) 97 (4): 695–732.
... in the West Pilbara granite-greenstone terrane (Regal Formation). At 3.02 Ga, the Whundo and Roebourne Groups share a common history of deposition of banded iron-formation and granitoid plutonism across the Sholl shear zone, suggesting accretion at, or immediately preceding, this time. This was followed...
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Image
Simplified regional geologic map of the West Pilbara superterrane, highligh...
Published: 01 May 2021
Fig. 2. Simplified regional geologic map of the West Pilbara superterrane, highlighting the Sholl terrane (ST), Karratha terrane (KT), Roebourne terrane (RT), Nickol River basin (NRB), and Sholl shear zone. The location of the Purdy’s Reward conglomerate Au is shown. Inset map of Western
Image
F ig . 1. Simplified geologic map of the North Pilbara
      terrain, showi...
Published: 01 July 2002
F ig . 1. Simplified geologic map of the North Pilbara terrain, showing component features discussed in the text. EPGGT = East Pilbara granite-greenstone terrane, KT = Kuranna terrane, MB = Mallina basin, MCB = Mosquito Creek basin, SSZ = Sholl shear zone, WPGGT = West
Journal Article
Journal: Geology
Published: 12 August 2021
Geology (2021)
... deposition. The rhabdophane ages are coeval with three the Sholl Shear Zone (Fig. 1). In this study, we major breakup events in eastern Gondwana: separation of Southwest Borneo and Argoland report the presence of rhabdophane [(La, Ce, from Australia (ca. 156 152 Ma), breakup of Greater India from Australia...
Journal Article
Journal: Economic Geology
Published: 01 July 2002
Economic Geology (2002) 97 (4): 847–872.
... age of 3016 ± 4 Ma ( Nelson, 2001 ) for a discordant(?) monzodiorite body within the intrusion may indicate an older phase of magmatism ( Wallace, 1992b ). The east-northeast–trending elongated mafic-ultramafic intrusion crops out over an area of 7 by 20 km ( Fig. 2 ) north of the Sholl shear zone...
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Journal Article
Journal: Economic Geology
Published: 01 May 2021
Economic Geology (2021) 116 (3): 629–650.
...Fig. 2. Simplified regional geologic map of the West Pilbara superterrane, highlighting the Sholl terrane (ST), Karratha terrane (KT), Roebourne terrane (RT), Nickol River basin (NRB), and Sholl shear zone. The location of the Purdy’s Reward conglomerate Au is shown. Inset map of Western...
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Journal Article
Journal: AAPG Bulletin
Published: 15 April 2020
AAPG Bulletin (2020) 104 (4): 913–938.
... exploration across the NWS has targeted a relatively small number of these anticlinal traps, some of which have been successful (e.g., Marina-1 well, Petrel subbasin) and some have not (e.g., Candace-1, Sholl Island fault anticline). This paper suggests that the prospectivity of anticlinal structures should...
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Journal Article
Journal: Geology
Published: 01 February 2002
Geology (2002) 30 (2): 103–106.
.... , and Chapman , H.J. , 1998 , The Sholl shear zone, West Pilbara: Evidence for a domain boundary structure from integrated tectonostratigraphic analyses, SHRIMP U-Pb dating and geochemical data of granitoids : Precambrian Research , v. 88 p. 143 – 171 . Srivastava , A.P. , Rajagopalan , G...
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Journal Article
Journal: Geophysics
Published: 01 January 2000
Geophysics (2000) 65 (2): 565–573.
... ). Seismic bottom-simulating reflectors (BSRs) that parallel the seafloor at the subbottom depths of several hundred meters presumably are associated with the base of the hydrate stability zone (although hydrates can occur without an associated BSR). BSRs manifest the negative impedance contrast between...
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Journal Article
Journal: Economic Geology
Published: 01 July 2002
Economic Geology (2002) 97 (4): 827–845.
... greenstone belt comprises two groups, the Whim Creek Group and the unconformably overlying Bookingarra Group. These authors suggest that the Bookingarra Group forms part of the Mallina basin and that the Whim Creek Group is a fragment of an older basin succession. The Sholl shear zone ( Fig. 1b...
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Journal Article
Journal: Economic Geology
Published: 01 September 2019
Economic Geology (2019) 114 (6): 1021–1031.
.... This analysis suggests that it is a hydrothermal Cu-Co-Au deposit, with mineralization hosted in sulfide-rich quartz-carbonate veins. The ore is hosted in veins that occur within a pervasively chloritized shear zone through the regionally significant Regal thrust. At Carlow Castle the shear zone associated...
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Journal Article
Published: 01 March 2000
South African Journal of Geology (2000) 103 (1): 32–37.
..., Transkei and Venda . Handbk. Gaol. Surv. S. Aft. , 8 , 690 pp. Smith , J.B. , Barley , ME. , Groves , D.I. , Krapez , B. , McNaughton , N.J. , Bickle , M.J. and Chapman , H.J. ( 1998 ). The Sholl Shear Zone, West Pilbara: evidence for a domain boundary structure from...
FIGURES
Journal Article
Journal: Economic Geology
Published: 01 July 2002
Economic Geology (2002) 97 (4): 733–755.
...           Mafic-ultramafic associated deposits       Radio Hill 26 0.837 Mt @ 3.32% Ni, 1.223 Mt @ 0.73% Ni, 0.85% Cu,     2.03% Cu, 0.17% Co and 0.06% Co (inferred resources)     (production and measured-       indicated reserves)   Mt. Sholl 27 Nil 4.76 Mt @ 0.72% Ni...
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Journal Article
Journal: Economic Geology
Published: 01 July 2002
Economic Geology (2002) 97 (4): 787–800.
... by the curvilinear Sholl shear zone, and high Mg diorites where intruded at 2950 Ma ( Smithies and Champion, 1999 ). Return to more north-northwest–oriented shortening (D 4c ) reactivated the early structures and resulted in the development of folds and faults ( Blewett, 2002 ). Lode Au mineralization occurred...
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Journal Article
Published: 23 July 2013
Italian Journal of Geosciences (2013) 132 (3): 443–462.
... shear along the future Iberia-Europe boundary in Permian times (see e.g. M uttoni et alii , 2003 ; P erini et alii , 2004 ). Nevertheless post-Variscan vertical shear zones, common throughout the Axial Zone of the Pyrenees and well defined in granitoid bodies of Variscan age (e.g. S oula et alii...
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Journal Article
Journal: Economic Geology
Published: 01 July 2002
Economic Geology (2002) 97 (4): 801–818.
... is the Cleaverville Formation. Although part of the northern margin of the Mallina basin is defined by the Sholl shear zone, most of the rest of this margin and the southern margin are a locally faulted unconformity against the Cleaverville Formation ( Smithies et al., 1999 ). The Whim Creek greenstone belt forms...
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Journal Article
Journal: Economic Geology
Published: 01 November 2021
Economic Geology (2021) 116 (7): 1561–1573.
... of these terranes with other world-class hydrothermal ore deposits, particularly Au deposits. Using U-Pb geochronology of hydrothermal apatite, this study provides the first absolute age constraints on the timing of mineralization for the Carlow Castle Cu-Co-Au deposit. Carlow Castle is a complex, shear zone-hosted...
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Journal Article
Published: 14 November 2018
Journal of the Geological Society (2019) 176 (1): 115–128.
... deformation of the Permian and Mesozoic fault systems and as a diffuse zone that variably partitions displacement between stacked Permian and Mesozoic fault systems. * Correspondence: sam.mcharg@postgrad.curtin.edu.au 18 02 2018 11 08 2018 13 08 2018 © 2018 The Author(s...
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Journal Article
Published: 06 June 2017
Journal of the Geological Society (2017) 174 (6): 1090–1112.
... Chert (Dresser Fm) in the NP Dome (site 20). As a consequence, the underlying sequence of the Razorback Chert is designated to the Talga Talga Subgroup ( De Vries et al. 2006 ; cf. section ‘Razorback Chert and Shear Zone’ below). Mount Ada Basalt, Apex Fm and the Antarctic Creek Member...
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Journal Article
Published: 01 April 2004
Scottish Journal of Geology (2007) 40 (1): 49–65.
... signatures of I-type granites. Furthermore, magma mixing is limited by viscosity differences between magmas of contrasting composition ( Sparks & Marshall 1986 ) and is only effective in local situations of highly energetic flow in magma conduits ( Koyaguchi 1985 ) or flow zones in magma chambers...
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