Discriminating depositional environments of sands from modern source terranes using modal analysis

Kasper‐Zubillaga, Juan José; Dickinson, Warren W.

doi:10.1016/s0037-0738(01)00058-6

Cited by 25 publications

(22 citation statements)

References 16 publications

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“…This suggests that quartz enrichment southwards might be the result of a wider coastal plain (ranging from 125 to 400 m) in sites MRB, HB, FB and OTK as compared to the rest of the sites (with the exception of site WnB), contributing to the redistribution of the sands, producing more quartz-rich sands. This interpretation is also supported by studies in other wide coastal areas, like the western coast of the Baja California Peninsula, Mexico, and the south central coast of the Western Gulf of Mexico (Carranza-Edwards et al, 1998;Kasper-Zubillaga and Dickinson, 2001), where beach and dune sands are enriched in quartz. Also, riverine sources in the north might contribute with more lithic fragments, which progressively decrease in content to the south due to the low lithic content input by southern river systems.…”

Section: Log Q/f Log Q/l Log F/l Log Lv/ls Log Lv/lm Log Ls/lm Log Lssupporting

confidence: 69%

“…All of the dune sands are fine grained, but the stoss sediments are well sorted, while the crest and lee sediments are well to very well sorted (Table IV). Sand compositions at the mouths of some of the rivers are presented in Table VII (Kasper-Zubillaga and Dickinson, 2001). Overall, the beach (Q 14 F 32 L 54 ) and dune (Q 11 F 42 L 47 ) sands are quartz poor but rich in feldspar and lithic grains (Figures 3 and 4(A)).…”

Section: Kapiti-foxton Coastmentioning

confidence: 99%

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Textural and compositional controls on modern beach and dune sands, New Zealand

Kasper‐Zubillaga

Ortiz-Zamora

Dickinson

et al. 2006

Earth Surf Processes Landf

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Textural, compositional, physical and geophysical determinations were carried out on 111 beach and dune sand samples from two areas in New Zealand: the Kapiti-Foxton coast sourced by terranes of andesite and greywackes and the Farewell Spit-Wharariki coast sourced by a wide variety of Paleozoic terranes. Our aim is to understand how long-shore drift, beach width and source rock control the sedimentological and petrographic characteristics of beach and dune sands. Furthermore, this study shows the usefulness of specific minerals (quartz, plagioclase with magnetite inclusions, monomineralic opaque grains) to interpret the physical processes (fluvial discharges, long-shore currents, winds) that distribute beach and dune sands in narrow and wide coastal plains. This was done by means of direct (grain size and modal analyses) and indirect (specific gravity, magnetic/non-magnetic separations M/NM, magnetic susceptibility measurements, hysteresis loops) methods. Results are compared with beach sands from Hawaii, Oregon, the Spanish Mediterranean, Elba Island and Southern California.Compositionally, the Kapiti-Foxton sands are similar to first-order immature sands, which retain their fluvial signature. This results from the high discharge of rivers and the narrow beaches that control the composition of the Kapiti-Foxton sands. The abundance of feldspar with magnetite inclusions controls the specific gravity of the Kapiti-Foxton sands due to their low content of opaque minerals and coarse grain size. Magnetic susceptibility of the sands is related mainly to the abundance of feldspars with Fe oxides, volcanic lithics and free-opaque minerals.The Farewell Spit-Wharariki sands are slightly more mature than the Kapiti-Foxton sands. The composition of the Farewell Spit-Wharariki sands does not reflect accurately their provenance due to the prevalence of long-shore drift, waves, little river input and a wide beach. Low abundance of feldspar with magnetite inclusions and free opaque grains produces poor correlations between specific gravity (Sg) and Fe oxide bearing minerals. The small correlation between opaque grains and M/NM may be related to grain size. The magnetic susceptibility of Farewell Spit-Wharariki sands is low due to the low content of grains with magnetite inclusions. Hysteresis and isothermal remnant magnetization (IRM) agree with the magnetic susceptibility values.

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Section: Log Q/f Log Q/l Log F/l Log Lv/ls Log Lv/lm Log Ls/lm Log Lssupporting

confidence: 69%

Section: Kapiti-foxton Coastmentioning

confidence: 99%

Textural and compositional controls on modern beach and dune sands, New Zealand

Kasper‐Zubillaga

Ortiz-Zamora

Dickinson

et al. 2006

Earth Surf Processes Landf

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“…Five samples were collected from crest, mid-slip, windward, base and horns of eight different barchan dunes while four samples were collected from the base, crest, mid-slip and inter-dune of twelve different linear dunes. The current sampling strategy was done because the grain size parameters in some cases might be controlled by the dune morphology (Kasper-Zubillaga and Dickinson, 2001). One sample was collected from each of 10 lee dunes and 10 sand shadows.…”

Section: Methodsmentioning

confidence: 99%

Mineralogy and grain morphology of the aeolian dune sand of Toshka area, southeastern Western Desert, Egypt

Refaat

Hamdan

2015

Aeolian Research

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“…A southwesterly long shore drift (Fernández-Eguiarte et al, 1990) also transports sand northwards that enriches in quartz the sands deposited in the Puerto Peñasco beaches, probably due to the maturity process in the coast. In addition, wind selectiveness exerts a control in the quartz enrichment of coastal dunes (Kasper-Zubillaga and Dickinson, 2001), implicating that the Puerto Peñasco coastal dune sands have a significant input from the beach sands.…”

Section: Modal Analysis Of the Coastal Dune Sandsmentioning

confidence: 99%

“…Regional variations in the sedimentological, mineralogical and geochemical composition of desert and coastal dune sands have been reported in several studies (Bagnold, 1941;Folk, 1971;Lancaster, 1988Lancaster, , 1989Lancaster, , 1992Lancaster, , 1995Liu et al, 1993;Honda and Shimizu, 1998;Livingstone et al, 1999;Kasper-Zubillaga and Dickinson, 2001;Honda et al, 2004;Muhs, 2004;Wang et al, 2003;Sweet et al, 1988). Some of these studies have focused on modal analysis (composition analysis by point counting of minerals) whereas others have utilized major and trace elements composition as proxies for mineralogy.…”

Section: Introductionmentioning

confidence: 99%

Sedimentological, modal analysis and geochemical studies of desert and coastal dunes, Altar Desert, NW Mexico

Kasper‐Zubillaga

Zolezzi-Ruiz

Carranza‐Edwards

et al. 2006

Earth Surf Processes Landf

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Sedimentological, compositional and geochemical determinations were carried out on 54 desert and coastal dune sand samples to study the provenance of desert and coastal dunes of the Altar Desert, Sonora, Mexico. Grain size distributions of the desert dune sands are influenced by the Colorado River Delta sediment supply and wind selectiveness. The desert dune sands are derived mainly from the quartz-rich Colorado River Delta sediments and sedimentary lithics. The dune height does not exert a control over the grain size distributions of the desert dune sands. The quartz enrichment of the desert dune sands may be due to wind sorting, which concentrates more quartz grains, and to the aeolian activity, which has A cluster analysis shows that the El Pinacate group is significantly different from the rest of the dune sands in terms of the grain-size parameters due to longer transport of the sands and the long distance from the source sediment, whereas the Puerto Peñasco coastal dune

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Discriminating depositional environments of sands from modern source terranes using modal analysis

Cited by 25 publications

References 16 publications

Textural and compositional controls on modern beach and dune sands, New Zealand

Textural and compositional controls on modern beach and dune sands, New Zealand

Mineralogy and grain morphology of the aeolian dune sand of Toshka area, southeastern Western Desert, Egypt

Sedimentological, modal analysis and geochemical studies of desert and coastal dunes, Altar Desert, NW Mexico

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