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213:). Groundwater silcretes typically formed in more localised, topographically lower settings such as valley bottoms and slopes, whereas pedogenic silcrete tended to form extensive sheets over very large areas. Over long periods of time, as the landscape was lowered further by weathering and erosion, the silcrete became exposed at the surface as a lag gravel, an armoured carapace of
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Underlying the Stuart Range, the folded sediments include the Early
Cretaceous (Aptian-Albian) Bulldog Shale, consisting of grey marine mudstones. Where the Bulldog Shale has been exposed at the surface for long periods it has been subjected to deep
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of the upland, forming a characteristic tableland topography where a continuing process of scarp retreat leaves behind mesas and buttes, which persist until their residual silcrete capping is finally lost.
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142:, extending about 170 kilometres (110 mi) with a north-west to south-east alignment and passing within 10 kilometres (6.2 mi) to the south-east of
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263:"Search results for 'Stuart Range' with following datasets selected - 'Suburbs and Localities', 'Government Towns', 'SA Government Regions' and 'Gazetter'"
202:, with the silica forming a secondary cement binding the sediment grains into sheets of hard, indurated rock, generally parallel to the land surface.
174:, central Australia experienced crustal compression resulting in very broad, low-amplitude folding, and the Stuart Range formed on a basement upwarp.
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223:), protecting the weaker regolith below from mechanical erosion. The resulting landscapes are relatively flat, undulating plains with low relief.
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Drexel, J.F. & Preiss, W.V. (Eds., 1995): The geology of South
Australia. Vol.2, The Phanerozoic. South Australia Geological Survey,
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182:, resulting in bleaching and the "multi-hued, picturesque colouration" found in the Arckaringa-Stuart Range landscape.
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Callan, R.A., Sheard, M.J., Benbow, M.C. & Belperio, A.P.: Alluvial fans and piedmont slope deposits.
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Benbow, M.C., Callen, R.A., Bourman, R.P. & Alley, N.F.: Deep weathering, ferricrete and silcrete.
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Throughout the
Tertiary the Stuart Range has been an important palaeodrainage divide, between the
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Krieg, G.W., Alexander, E.M. & Rogers, P.A.: Jurassic-Cretaceous epicratonic basins.
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This occurred at deeper levels, at the intersection with the groundwater table (forming
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by the movement of groundwater, precipitated as the ambient conditions changed, forming
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The prolonged chemical weathering also dissolved silica which, transported through the
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In places where fluvial erosion has been more active, gullies have dissected the
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Krieg, G.W. & Rogers, P.A.: Stratigraphy - marine succession.
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19:For other places with the same name, see
317:Drexel & Preiss (1995) pp. 201-207.
304:Drexel & Preiss (1995) pp. 112-123.
291:Drexel & Preiss (1995) pp. 101-112.
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330:Drexel & Preiss (1995) pp. 242-3.
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368:Mountain ranges of South Australia
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269:. South Australian Government
16:Low upland in South Australia
373:Far North (South Australia)
138:is a low upland in central
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154:The range is named after
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102:29.075171°S 134.835607°E
267:Location SA Map Viewer
107:-29.075171; 134.835607
207:groundwater silcrete
156:John McDouall Stuart
180:chemical weathering
98: /
211:pedogenic silcrete
74:Highest point
353:978-0-7308-0621-9
217:(also known as a
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166:During the Late
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271:. Retrieved
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136:Stuart Range
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56:Stuart Range
31:Stuart Range
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21:Stuart Range
195:(a type of
144:Coober Pedy
127:Coober Pedy
105: /
93:134°50′08″E
80:Coordinates
63:Coober Pedy
362:Categories
338:References
168:Cretaceous
90:29°04′31″S
273:16 August
198:duricrust
162:Formation
118:Geography
345:Bulletin
192:silcrete
187:regolith
172:Tertiary
123:Location
215:gibbers
351:
246:Notes
228:Eucla
349:ISBN
347:54.
275:2019
230:and
170:and
150:Name
134:The
328:In:
315:In:
302:In:
289:In:
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254:^
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