Basin intracratonic

Unconformity-Related Deposits. Deposits of the unconformity-related type occur spatially close to significant unconformities. These deposits usually developed during the period about 1800—800 million years ago in intracratonic basins. Deposits also developed during Phanerozoic time. Examples of unconformity-related deposits include the ore bodies at Cluff Lake, Key Lake, and Rabbit Lake in northern Saskatchewan, Canada, and those in the Alligator Rivers area in northern AustraHa (12). 

Kaminski E. and Jaupart C. (2000) Lithosphere structure beneath the Phanerozoic intracratonic basins of North America. Earth Planet. Sci. Lett. 178, 139-149. 

Sedimentary rocks of the McArthur Basin in Northern Australia provide one of the best windows on the chemistry of the Mesoproterozoic ocean. Some 10 km of 1.6-1.7Ga sediments accumulated in this intracratonic basin (Southgate et al., 2000). In certain intervals, they contain giant strata-bound Pb-Zn-Ag mineral deposits (Jackson et al., 1987 Jackson and RaisweU, 1991 Crick, 1992). The sediments have experienced only low grades of metamorphism. 

River and Amazon River basins, the Isthmus of Panama, and the Island of Taiwan and for rock types representative of bedrock in these basins. Symbols , samples from rivers that drain mostly mountain belts developed on felsic continental crust T, samples from rivers that drain mostly island-arc mountain belts developed on mafic oceanic crust +, samples from rivers that originate in continental mountain belts, but that drain large areas of era ton x, rivers that drain alluvial and non-alluvial sedimentary rocks in foreland and intracratonic basins D, rivers that drain only alluvial sediments in foreland and intracratonic basins A, rivers that drain hilly to mountainous shield on felsic crust V, rivers that drain hilly to mountainous shield on mafic crust or deeply eroded island arc O, rivers that drain peneplaned shield. The dashed oval represents the range of analyses for common igneous rocks the dashed lines that extend away from the igneous rock field represent the composition field for common sedimentary rocks. Adapted from Stallard (1988) with the permission of Kluwer Academic Publishers. 

Vast tracts of the South American and West African lowlands have predominantly transport-limited denudation regimes (Stallard, 1988). These regions represent the flattest and youngest erosional/ depositional surfaces of the late Neogene. On the shield, the substrate is crystalline basement, while in the intracratonic basins, the Andean foreland basin, and the coastal plains, much of the sedimentary substrate consists of strongly "pre-weathered" fluvio-lacustrine sediment (Stallard, 1985, 1988 ... 

Soares, P. C., P. M. B. Landim, and V.. Fulfaro (1978). Tectonic cycles and sedimentary sequences in the Brazilian intracratonic basins. Geol. Soc. Amer. Bull. 89, 181-191. 

Syngenetic chemical Intracratonic basins Near-shore marine siliciclastic 25 1... 

Sandstone uranium Intracratonic basins Continental siliciclastic 50 2... 

Red-bed copper Intracratonic basins Continental and marginal marine siliciclastic 50-100 3... 

Mississippi Valley-type Intracratonic basins Shallow marine and shoreline carbonate and siliciclastic 75-200 4... 

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