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Hout Bay

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Map of the <b>Hout</b> <b>Bay</b> Deposit. The geological symbols are the same as for  Fi...
Published: 26 October 2020
Figure 7. Map of the Hout Bay Deposit. The geological symbols are the same as for Figure 2 . The location of the geochemical samples is shown in red and the location of other figures in black rectangles. For location of the map, refer to Figure 1 .
Image
Plots of geochemical data for mineralized samples from the <b>Hout</b> <b>Bay</b> deposit...
Published: 26 October 2020
Figure 14. Plots of geochemical data for mineralized samples from the Hout Bay deposit. ( a ) Mn versus K; the dashed black line is a linear trendline for the sample points. The idealized composition of cryptomelane is shown for reference purposes. ( b ) P versus Mn (purple circles) and Fe
Journal Article
Published: 26 October 2020
South African Journal of Geology (2020) 123 (4): 493–510.
...Figure 7. Map of the Hout Bay Deposit. The geological symbols are the same as for Figure 2 . The location of the geochemical samples is shown in red and the location of other figures in black rectangles. For location of the map, refer to Figure 1 . ...
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Journal Article
Journal: AAPG Bulletin
Published: 01 September 1982
AAPG Bulletin (1982) 66 (9): 1384–1395.
... : PhD thesis, Columbia Univ . NAVOCEANO , 1977 , Standard Navy ocean area world relief maps (North Atlantic Ocean—sheets NA6, NA9 and 9A, NA10), Mercator projection, scale 1″ = 1° : World Bathymetric Unit, U.S. Naval Oceanographic Office, Bay St. Louis, Miss. , unpub. Rabinowitz , P.D...
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Journal Article
Published: 05 April 2017
Seismological Research Letters (2017) 88 (3): 727–739.
... of uplift that took place at the gauge location during the earthquake. The tsunami badly damaged a house at Little Pigeon Bay in Banks Peninsula, partially lifting it from its foundations and causing two exterior walls to cave in. In the Kaikōura area, tsunami damage was mitigated by the coseismic uplift...
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Journal Article
Journal: AAPG Bulletin
Published: 01 January 1977
AAPG Bulletin (1977) 61 (1): 79–99.
...-bedding of bars and channel fill was deposited on the lower delta plain while laterally equivalent mud accumulated in interdistributary bays and mudflats. Late Triassic estheriids recovered from this unit point to associated bodies of brackish water. With waning of fluvial influx, interdistributary...
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Image
Location of study area showing main topographic features and manganese work...
Published: 26 October 2020
Figure 1. Location of study area showing main topographic features and manganese workings at Constantiaberg (CB), Hout Bay (HB), Skoorsteenkop (SK, from Theron, 1984 ) and above Koeëlbaai (KB).
Image
Stereograms of poles to ( a ) all Mn-bearing structures, ( b ) dolerite dyk...
Published: 26 October 2020
Figure 9. Stereograms of poles to ( a ) all Mn-bearing structures, ( b ) dolerite dykes and ( c ) mineralized faults in the Hout Bay deposit. The distribution of Mn bodies greater than 1 m wide are shown as red squares in (a).
Journal Article
Published: 01 June 2018
South African Journal of Geology (2018) 121 (2): 141–156.
... , 362 – 367 . MacHutchon , M.R. , 2013 . The geological evolution and sedimentary dynamics of Hout Bay, South Africa . Council for Geoscience, Bulletin 148 , 134 pp. Mazel , C. , 1985 . Side Scan Sonar Training Manual – Klein Associates, Inc , 11230001 Rev 01...
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Plots of data for selected dykes (solid circles) and saprolite (open circle...
Published: 26 October 2020
Figure 15. Plots of data for selected dykes (solid circles) and saprolite (open circles) from the Hout Bay deposit. ( a ) Fe/Al versus Fe/Ti, with the Fe leaching trend indicated (dashed red arrow). ( b ) Si versus Al.
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Photograph of features interpreted as Fe- (upper) and Mn- (lower) impregnat...
Published: 26 October 2020
Figure 10. Photograph of features interpreted as Fe- (upper) and Mn- (lower) impregnations at redox fronts in silty horizons exposed in the portal to the main Hout Bay adit. The upper siltstone is dominated by reddish hematite whereas the lower siltstone has blackish Mn-oxyhydroxides with some
Image
Ternary Si-Al-(Fe+Mn) mass plot for dykes from the Constantiaberg Massif wi...
Published: 26 October 2020
Figure 17. Ternary Si-Al-(Fe+Mn) mass plot for dykes from the Constantiaberg Massif with saprolite and mineralization from the Hout Bay deposit. The ideal mineral compositions for kaolinite and montmorillonite plot along the Si – Al edge of the diagram, whereas illite has a more variable
Image
Photographs illustrating relationships between the Mn mineralization and dy...
Published: 26 October 2020
Figure 8. Photographs illustrating relationships between the Mn mineralization and dyke material in the Hout Bay deposit. In ( a ) a core of whitish saprolitic dyke is separated (dashed yellow line) from sandstone wall rocks by a Fe/Mn dark selvedge. Relict textures of the dolerite can be seen
Image
Histogram illustrating the elevations at which Mn occurrences have been fou...
Published: 26 October 2020
) and Hout Bay (HB) deposits respectively. The red arrows illustrate the elevation of the top of the Graafwater Formation beneath the two deposits.
Journal Article
Journal: AAPG Bulletin
Published: 01 October 2003
AAPG Bulletin (2003) 87 (10): 1653–1680.
..., and dissolution. There are two main oil provinces where the Mauddud Formation is a major oil-producing reservoir. The northern province includes Iraq's oil fields such as Ain Zalah, Bai Hassan, and Jambur. The southern province includes the Ratawi field in southern Iraq, Raudhatain, Sabriya, and Bahra fields...
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Journal Article
Published: 01 September 2015
Geological Magazine (2016) 153 (2): 223–251.
...SOFIE LINDSTRÖM Abstract A review of the palynofloral succession at the well-documented Triassic–Jurassic boundary sites – Kuhjoch (Austria), St Audrie's Bay (UK), Stenlille (Denmark), Astartekløft (Greenland), Sverdrup Basin (Arctic Canada), Northern Carnarvon Basin (Western Australia), Southeast...
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Journal Article
Journal: AAPG Bulletin
Published: 01 May 1973
AAPG Bulletin (1973) 57 (5): 930–932.
... (Hout Bay) using a Van Veen grab; samples from beaches and dunes behind the beaches were collected by hand. Shelf, slope, and bay samples are discussed together as the “marine” environment. Calcium, magnesium, and strontium concentrations were determined by atomic-absorption spectrophotometry...
FIGURES
Journal Article
Published: 01 March 2005
Journal of the Geological Society (2005) 162 (2): 225–241.
... type % of 39 Ar released (for given plateau) Plateau temp. (°C) Plateau age (Ma) Isochron age (Ma) 40 Ar/ 36 Ar HOUT 1.1 NO 1 Thol. basalt 80 450–900 26.1 ± 1.0 24.4 ± 11.8 322.7 ± 25.7 MITI 2.1* NO 2 Thol. basalt 88 750–1150 28.3 ± 3.4 27.1 ± 1.5 296.6 ± 1.1 NUKU 5.1...
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Journal Article
Published: 01 December 2010
South African Journal of Geology (2010) 113 (4): 401–412.
.... 14.02 JVG 2 Lions Head Porphyritic granite, no Gt present n.f. 14.04 JVG 3 Lions Head Porphyritic granite, 10 m from JVG 2, no Gt present n.f. 13.95 JVG 4 Lions Head Porphyritic granite, 20 m from JVG 2, no Gt present n.f. 13.88 JVG 5 Hout Bay Porphyritic granite, Gt removed...
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Journal Article
Published: 02 October 2017
Journal of the Geological Society (2018) 175 (1): 60–70.
... and oceanic accretion of the Bay of Biscay ( Vercoutere & Van den Houte 1993 ; Schumacher 2002 ; Thiry et al. 2006 ; Beccaletto et al. 2011 ). This induced an erosion of their Palaeozoic to early Mesozoic sedimentary cover between the end of the Jurassic and the late Cretaceous ( Vercoutere &...
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