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Dresser Formation

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Pyrite textures in the <b>Dresser</b> <b>Formation</b> (Pilbara Craton, Western Australia...
Published: 25 September 2019
Figure 2. Pyrite textures in the Dresser Formation (Pilbara Craton, Western Australia) stromatolites. (A) Backscattered electron (BSE) image of representative pyrite assemblages, ranging from irregular (Py1) to zoned (Py2) nano-porous pyrite, to later overgrowths of non-porous, massive pyrite
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Organic matter strands and filaments in pyrite of the <b>Dresser</b> <b>Formation</b> (Pi...
Published: 25 September 2019
Figure 4. Organic matter strands and filaments in pyrite of the Dresser Formation (Pilbara Craton, Western Australia) stromatolites. (A) Backscattered electron (BSE) image of a branched organic matter (OM) strand that is embedded in nano-porous pyrite (red arrow). (B,C) Coherent OM strands
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Basalts of the <b>Dresser</b> <b>Formation</b>, North Pole Dome. A. Relatively unaltered ...
Published: 01 September 2009
F ig . 4. Basalts of the Dresser Formation, North Pole Dome. A. Relatively unaltered pillowed basalt. B. Calcite-illite-chlorite altered pillowed basalt cut by jasperoidal quartz (chert) veins (footwall alteration of the Dresser mine).
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Chert of the <b>Dresser</b> <b>Formation</b>, North Pole Dome. A. Thick black and red che...
Published: 01 September 2009
F ig . 5. Chert of the Dresser Formation, North Pole Dome. A. Thick black and red chert from the uppermost parts of the formation. B. An example of apparently concordant chert (quartz) cut by a near-vertical chert (quartz) unit. C. Colloform banded quartz found in a vein that is concordant
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Epithermal and related textures in the <b>Dresser</b> <b>Formation</b>, North Pole Dome. ...
Published: 01 September 2009
F ig . 6. Epithermal and related textures in the Dresser Formation, North Pole Dome. A. Symmetrically banded quartz, chalcedony, and coarse bladed barite from a vein from the Dresser mine. B. Coarse bladed barite from the Dresser Mining Centre. C. Stalactitelike structures found in a discordant
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Probable stromatolites from the 3.47-Ga <b>Dresser</b> <b>Formation</b>, North Pole Dome....
Published: 01 September 2009
F ig . 8. Probable stromatolites from the 3.47-Ga Dresser Formation, North Pole Dome. A. Wrinkly laminated mats from type locality ( Dunlop et al., 1978 ). No stromatolites were hit or sampled from this locality. B. Broad smooth domes on top of thin crinkled laminates. C. Smooth domes
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Simplified geological map of the <b>Dresser</b> <b>Formation</b> in the Barite Range of t...
Published: 01 August 2004
Fig. 2 Simplified geological map of the Dresser Formation in the Barite Range of the North Pole Dome (see Fig. 1 for location). Direction of view for Figures 3A and 3B indicated.
Series: GSA Special Papers
Published: 01 January 2006
DOI: 10.1130/2006.2405(08)
... Four cherts sampled in the East Pilbara craton (Western Australia) at Marble Bar (Towers Formation), North Pole Dome (Dresser and Apex Basalt Formation), and Kittys Gap (Panorama Formation) were studied for micro- and nanomineralogy and geochemistry to determine their protoliths and to provide...
Journal Article
Journal: Geology
Published: 25 September 2019
Geology (2019) 47 (11): 1039–1043.
...Figure 2. Pyrite textures in the Dresser Formation (Pilbara Craton, Western Australia) stromatolites. (A) Backscattered electron (BSE) image of representative pyrite assemblages, ranging from irregular (Py1) to zoned (Py2) nano-porous pyrite, to later overgrowths of non-porous, massive pyrite...
FIGURES | View All (4)
Series: Geological Society
Published: 01 January 2017
DOI: 10.1144/SP448.11
EISBN: 9781786202932
...Sample material Dresser Formation (sample DR1) Materials and methods Recent decades have also seen the advent, development and increasingly widespread application of virtual palaeontological techniques, namely computer-aided three-dimensional imaging and visualization ( Garwood et al...
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Ternary A–CN–K (A) and A–CNK–FM (B) plots of metabasalts from the study are...
Published: 01 August 2004
Fig. 14 Ternary A–CN–K (A) and A–CNK–FM (B) plots of metabasalts from the study area. In A, metabasalts from below (circles), within (triangles), and above (squares) the Dresser Formation plot on the A–CN tieline and indicate no effects from recent weathering. Samples of altered metabasalt from
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A. Representative fluid inclusion microanalysis of samples collected at dif...
Published: 01 September 2009
F ig . 12. A. Representative fluid inclusion microanalysis of samples collected at different stratigraphic levels through the Dresser Formation. Sample locations are shown schematically on a vertical profile of the Dresser Formation stratigraphy (see Table 2 for summary of inclusion
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Geology of the North Pole Dome (modified from North Shaw 1:100,000 Map Shee...
Published: 01 September 2009
F ig . 1. Geology of the North Pole Dome (modified from North Shaw 1:100,000 Map Sheet, Geological Survey of Western Australia; Van Kranendonk, 2001 ). Basaltic volcanic rocks (including the Dresser Formation) are cut by numerous quartz-barite veins. Sedimentary and hydrothermal units dip away
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Features of hydrothermal amorphous silica–barite veins of the <b>Dresser</b> Forma...
Published: 01 August 2004
Fig. 3 Features of hydrothermal amorphous silica–barite veins of the Dresser Formation, North Pole Dome. (A) Aerial view to WSW of boxwork amorphous silica–barite veins (high-standing ridges) in altered metabasalt (recessive-weathering material) stratigraphically underneath bedded chert–barite
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Geological sketch of a vertical cross-section through the lower part of the...
Published: 01 August 2004
Fig. 5 Geological sketch of a vertical cross-section through the lower part of the main chert horizon of the Dresser Formation. Locality shown in Figure 2 . Note the two types of hydrothermal chert breccias that cut obliquely across bedded grey and white chert.
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Schematic illustration showing a model of submarine caldera setting, the in...
Published: 01 August 2004
Fig. 16 Schematic illustration showing a model of submarine caldera setting, the inferred tectonic environment for the hydrothermal systems of the Dresser Formation and Apex chert. Inset shows idealized alteration patterns associated with a single hydrothermal circulation event and deposition
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Chondrite-normalized ( Sun &amp; McDonough 1989 ) REE plots of unaltered an...
Published: 01 August 2004
Fig. 15 Chondrite-normalized ( Sun & McDonough 1989 ) REE plots of unaltered and altered metabasalts from the studied chert horizons:(A) Dresser Formation; (B) Apex chert; (C) Strelley Pool Chert locality 1; (D) Strelley Pool Chert locality 2. Data from Table 1 , except Panorama Formation
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Features of white, hydrothermally altered pillow basalts from the steam-hea...
Published: 01 August 2004
Fig. 6 Features of white, hydrothermally altered pillow basalts from the steam-heated clay alteration zone immediately beneath the main bedded chert horizon of the Dresser Formation at the Dresser Mine (see Fig. 2 for location). (A) View looking east of zoned chert–barite vein cutting
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Emblematic Archean and Proterozoic chert <b>formations</b>.  A –Landscape view of ...
Published: 01 January 2021
Figure 3. Emblematic Archean and Proterozoic chert formations. A –Landscape view of the Dresser Formation at the North Pole locality and the outcrops of ( B ) stromatolitic chert, and ( C ) stromatolitic and bedded cherts. D –Landscape view of the Buck Reef Chert with ( E ) white and black
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Cumulative frequency size distribution diagram of Precambrian microfossils ...
Published: 01 June 2019
Figure 9. Cumulative frequency size distribution diagram of Precambrian microfossils (1-3) and pseudofossils (4-6). Investigated Moodies ovoid microstructures (5) resemble in size and range those of volcanic vesicles from the Dresser Formation and Strelley Pool Formation. Data from 1, 2 = Schopf