Diagenetic Processes That Affect Provenance Determinations in Sandstone

McBride, Earle F.

doi:10.1007/978-94-017-2809-6_5

Cited by 88 publications

(51 citation statements)

References 6 publications

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“…This points to derivation of the sandstones from stable parts of the craton, with perhaps a subordinate contribution from recycled orogens, shedding quartzose debris of continental affinity into the basin (Dickinson et al, 1983). Nevertheless, such provenance determination has to be considered with caution, because of the changes in the original composition which may be caused by diagenesis, leading to modification in the Q-F-L plot (McBride, 1985).…”

Section: Detrital Modes and Tectonic Settingmentioning

confidence: 94%

Petrography and geochemistry of the Cambro-Ordovician Wajid Sandstone, southwest Saudi Arabia: Implications for provenance and tectonic setting

Wanas

Abdel-Maguid

2006

Journal of Asian Earth Sciences

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Section: Detrital Modes and Tectonic Settingmentioning

confidence: 94%

Petrography and geochemistry of the Cambro-Ordovician Wajid Sandstone, southwest Saudi Arabia: Implications for provenance and tectonic setting

Wanas

Abdel-Maguid

2006

Journal of Asian Earth Sciences

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“…Williams et al 1953;McBride 1963;Dott 1964;Pettijohn et al 1972). Depending on the matrix content, two triangular graphs are in use, one for matrix-rich wackes (>15% matrix) and another one for matrix-poor arenites (<15% matrix ;Dott 1964;Pettijohn et al 1972).…”

Section: Detrital Modesmentioning

confidence: 92%

Provenance of Palaeozoic sandstones from the Carnic Alps (Austria): petrographic and geochemical indicators

Mader

Neubauer

2004

International Journal of Earth Sciences

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An integrated approach of petrographic analysis, whole rock geochemistry and microprobe analysis has been applied to obtain information on the geodynamic development and the provenance for Ordovician to Permian siliciclastic successions exposed within the Carnic Alps (Austria). Sandstone detrital mode and geochemical results refine previous geodynamic interpretations. Late Ordovician samples indicate a stable craton and recycled orogenic and, possible, extensional setting. The Early Carboniferous is interpreted to represent a compressional environment, followed by a Late Carboniferous molassetype foreland basin, and a Permian extensional geodynamic setting. Contrasting geochemical patterns of postVariscan and Permian sequences suggest a rift setting. Electron microprobe data of detrital white mica also indicate changes in the provenance. Compositional data reflect a shift from low-to medium-grade metamorphic (Ordovician) to high-grade metamorphic (Carboniferous) to low-to medium-grade metamorphic and plutonic source rocks (Permian). Additionally, our data show that various chemical discrimination diagrams do not include all possible ranges of sandstones, and that high contents of detrital mica and ultra-stable heavy minerals may cause misclassification. Consequently, we propose the use of multi-method approach for provenance studies, including the control of geochemical data by modal analysis and heavy mineral investigations.

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“…[56,57] documented that tropical warm and humid climates supported by low relief that led to intense chemical weathering is the most active agent modifying the composition of the original detritital sandstone. Other modifying agents include sediment transport across tectonic boundaries, changing tectonic styles at provenance as well as mixing with other sources, sediment recycling and reworking in depositional environment and diagenesis [58,59]. The proposed diagrams of [56,[60][61][62] were used to discriminate sources of metamorphic and plutonic rocks in different climatic conditions.…”

Section: Weathering Of Source Areasmentioning

confidence: 99%

Modal composition and tectonic provenance of the sandstones of Ecca Group, Karoo Supergroup in the Eastern Cape Province, South Africa

2017

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Petrography of the sandstones of Ecca Group, Karoo Supergroup in the Eastern Cape Province of South Africa have been investigated on composition, provenance and influence of weathering conditions. Petrographic studies based on quantitative analysis of the detrital minerals revealed that the sandstones are composed mostly of quartz, feldspar and lithic fragments of metamorphic and sedimentary rocks. The sandstones have an average framework composition of 24.3% quartz, 19.3% feldspar, 26.1% rock fragments, and 81.33% of the quartz grains are monocrystalline. These sandstones are generally very fine to fine grained, moderate to well sorted, and subangular to subrounded in shape. In addition, they are compositionally immature and can be classified as feldspathic wacke and lithic wacke. The provenance characteristics suggest the influence of plutonic and metamorphic terrains (meta-magmatic arc) as the main source rock with minor debris derived from recycled sedimentary rocks. The latter revealed that the compositional immaturity of the sandstones is a result of weathering or recycling and short transport distance. The weathering diagrams and semiquantitative weathering index indicate that the Ecca sandstones are mostly from a plutonic source area, with climatic conditions ranging from arid to humid. The detrital modal compositions of these sandstones are related to back arc to island and continental margin arc. These results, therefore, support previous studies that infer foreland basin setting for the Karoo Basin.

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Diagenetic Processes That Affect Provenance Determinations in Sandstone

Cited by 88 publications

References 6 publications

Petrography and geochemistry of the Cambro-Ordovician Wajid Sandstone, southwest Saudi Arabia: Implications for provenance and tectonic setting

Petrography and geochemistry of the Cambro-Ordovician Wajid Sandstone, southwest Saudi Arabia: Implications for provenance and tectonic setting

Provenance of Palaeozoic sandstones from the Carnic Alps (Austria): petrographic and geochemical indicators

Modal composition and tectonic provenance of the sandstones of Ecca Group, Karoo Supergroup in the Eastern Cape Province, South Africa

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