Chapter 9 Effects of Hydrothermal Fluids on the Heavy Mineral Assemblage of a Late Pleistocene Succession Deposited in an Oceanic Ridge Valley (Escanaba trough, Juan De Fuca Plate)

Zuffa, Gian Gaspare; Serra, Francesca

doi:10.1016/s0070-4571(07)58009-x

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…More stable minerals include zircon, tourmaline, rutile, garnet, monazite and titanite. Less stable minerals include epidote, amphibole and pyroxene (Zuffa and Serra, 2007). The black straight line denotes the main wind direction, whereas the black dotted line denotes the minor wind direction.…”

Section: Grain Size and Quartz Grain Morphologymentioning

confidence: 99%

Heavy-mineral analysis and provenance of Yellow River sediments around the China Loess Plateau

Pan

Pang

Gao

et al. 2016

Journal of Asian Earth Sciences

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a b s t r a c tIn its upper-middle reaches the Yellow River has high sand contents after traversing through large areas of desert and the China Loess Plateau. Understanding riverbed sediment composition in the channel is critical for the interpretation of the potential provenance, aeolian sand transport and the linkage between the Loess Plateau and the Yellow River. To address these issues, we collected 52 samples from the modern riverbed, proximal deserts, and major tributaries and used analyses of grain size, grain morphology, and heavy-mineral compositions, to establish the spatial distribution and characteristics of source regions and riverbed sediments. The heavy-mineral assemblages demonstrate significant variations for the different sections of the Yellow River. The riverbed samples from the upper reach are dominated by opaque minerals (limonite and magnetite), amphibole and epidote, with minor zircon, tourmaline and rutile. Riverbed sediments from the middle reach are garnet-rich, reflecting the widespread distribution of Mesozoic sandstones. This variability closely reflects the source regions. Our data show that seasonal tributaries (the ''Ten Great Gullies") carrying detritus from the Ordos Plateau may account for the localized high garnet concentrations in the Inner Mongolia section of the upper reach. Scanning electron microscope (SEM) imaging of quartz grains show that the river sediments are characterized by composite microtextures acquired in both fluvial and eolian environments of the Hedong, Ulan Buh and Kubuq Deserts. The mineralogical composition in the upper reach (Lanzhou-Yinchuan) is similar to that of sediments in the Loess Plateau and Northeast Tibet Plateau (Western Lanzhou). However, the composition differs markedly from that in the Inner Mongolia section of the upper and middle reaches. This variation indicates that in the upper reach the Northeast Tibet Plateau contributes significant volumes of sediment to the Yellow River and Loess Plateau, but compositions change across the Inner Mongolia section of the upper and middle reaches owing to local sediment supply from arid desert areas and seasonal tributaries.

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Section: Grain Size and Quartz Grain Morphologymentioning

confidence: 99%

Heavy-mineral analysis and provenance of Yellow River sediments around the China Loess Plateau

Pan

Pang

Gao

et al. 2016

Journal of Asian Earth Sciences

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Chapter 7 Stability of Detrital Heavy Minerals During Burial Diagenesis

Morton

Hallsworth²

2007

Developments in Sedimentology

192

157

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Provenance controls on volcaniclastic beach sand: example from the Aeolian archipelago, Mediterranean Sea

Morrone

Pera

Marsaglia

et al. 2021

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Sand and sandstone composition of volcanic origin may be clues to the provenance of the sediments and sedimentary rocks. Volcaniclastic provenance studies contribute significantly to unravel the sediment generation and provenance under investigation that in the Aeolian archipelago comprise preserved units of outcrops dominated by lava flows intercalated with air fall tephras as source rocks. The aim of this paper is the study of the petrographic composition and the textures of beach sands that may be used as a guide for the interpretation of provenance and origin of beach sand(stone)s rich in volcanic debris transported into deeper water. The composition of Aeolian beach deposits defines a single immature petrofacies with a high amount of unweathered glass and mafic minerals. Panarea island is dominated by dacites and new grain categories have been proposed to discriminate this provenance. Surface processes such as mechanical erosion (mass wasting and surface runoff) produce an overestimation of mafic components, with respect to the felsic ones in the beach sand fraction.Supplementary material at https://doi.org/10.6084/m9.figshare.c.5608950

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Chapter 9 Effects of Hydrothermal Fluids on the Heavy Mineral Assemblage of a Late Pleistocene Succession Deposited in an Oceanic Ridge Valley (Escanaba trough, Juan De Fuca Plate)

Cited by 3 publications

References 4 publications

Heavy-mineral analysis and provenance of Yellow River sediments around the China Loess Plateau

Heavy-mineral analysis and provenance of Yellow River sediments around the China Loess Plateau

Chapter 7 Stability of Detrital Heavy Minerals During Burial Diagenesis

Provenance controls on volcaniclastic beach sand: example from the Aeolian archipelago, Mediterranean Sea

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