Petrology of fluvial sands from the Amazonian foreland basin, Peru and Bolivia

P. G. Decelles; F. Hertel

doi:10.1130/0016-7606(1989)101<1552:POFSFT>2.3.CO;2

Petrology of fluvial sands from the Amazonian foreland basin, Peru and Bolivia

P. G. Decelles, F. Hertel

Geosciences

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73 Scopus citations

Abstract

Modal sand compositions in nine rivers draining the proximal part of the Amazonian retroarc foreland basin in Peru and Bolivia provide support for the Recycled Orogen provenance model of Dickinson and Suczek. The overriding control on sand composition is the relative area of bedrock type exposed in the fold-thrust belt. Sands reworked from Tertiary and Quaternary foreland-basin fill are relatively enriched in quartz, possibly owing to intense weathering of sediments in the soil profile. -from Authors

Original language	English (US)
Pages (from-to)	1552-1562
Number of pages	11
Journal	Geological Society of America Bulletin
Volume	101
Issue number	12
DOIs	https://doi.org/10.1130/0016-7606(1989)101<1552:POFSFT>2.3.CO;2
State	Published - 1989

ASJC Scopus subject areas

Geology

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10.1130/0016-7606(1989)101<1552:POFSFT>2.3.CO;2

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abstract = "Modal sand compositions in nine rivers draining the proximal part of the Amazonian retroarc foreland basin in Peru and Bolivia provide support for the Recycled Orogen provenance model of Dickinson and Suczek. The overriding control on sand composition is the relative area of bedrock type exposed in the fold-thrust belt. Sands reworked from Tertiary and Quaternary foreland-basin fill are relatively enriched in quartz, possibly owing to intense weathering of sediments in the soil profile. -from Authors",

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AB - Modal sand compositions in nine rivers draining the proximal part of the Amazonian retroarc foreland basin in Peru and Bolivia provide support for the Recycled Orogen provenance model of Dickinson and Suczek. The overriding control on sand composition is the relative area of bedrock type exposed in the fold-thrust belt. Sands reworked from Tertiary and Quaternary foreland-basin fill are relatively enriched in quartz, possibly owing to intense weathering of sediments in the soil profile. -from Authors

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Petrology of fluvial sands from the Amazonian foreland basin, Peru and Bolivia

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