Compositional and textural study of modern beach sands in the active volcanic area of the Campania region (southern Italy)

Morrone, Consuele; Pera, Emilia Le; Marsaglia, Kathleen M.; Rosa, Rosanna De

doi:10.1016/j.sedgeo.2019.105567

Cited by 22 publications

(9 citation statements)

References 29 publications

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“…9), well suited for illustrating data of sands derived from mid-crustal rocks and for discriminating the main sedimentary petrologic provinces (e.g. Critelli and Le Pera 1994;Le Pera et al 2001;Caracciolo et al 2011Caracciolo et al , 2012Morrone et al 2017Morrone et al , 2020Chaudhuri et al 2018), combines the relative proportion of phaneritic rock fragments and aphanitic lithics. Specifically, Rg (granitoid rock fragments) comprises plutonic phaneritic rock fragments and gneissic rock fragments; Rs (sedimentary rock fragments) comprises phaneritic rock fragments and aphanitic lithics of both siliciclastic and carbonate sedimentary rocks; Rm (metamorphic rock fragments) comprises metamorphic phaneritic rock fragments and aphanitic lithics such as schist+phyllite+serpentinite.…”

Section: Modal Compositionmentioning

confidence: 99%

Shoreline evolution and modern beach sand composition along a coastal stretch of the Tyrrhenian Sea, southern Italy

Morrone

Ietto

2021

J. Palaeogeogr.

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This contribution focuses on a multidisciplinary research showing the geomorphological evolution and the beach sand composition of the Tyrrhenian shoreline between Capo Suvero promontory and Gizzeria Lido village (Calabria, southern Italy). The aim of the geomorphological analysis was to reconstruct the evolutionary shoreline stages and the present-day sedimentary dynamics along approximately 6 km of coastline. The results show a general trend of beach nourishment during the period 1870–2019. In this period, the maximum shoreline accretion value was estimated equal to + 900 m with an average rate of + 6.5 m/yr. Moreover, although the general evolutionary trend is characterized by a remarkable accretion, the geomorphological analysis highlighted continuous modifications of the beaches including erosion processes. The continuous beach modifications occurred mainly between 1953 and 1983 and were caused mainly by human activity in the coastal areas and inside the hydrographic basins. The beach sand composition allowed an assessment of the mainland petrological sedimentary province and its dispersal pattern of the present coastal dynamics. Petrographic analysis of beach sands identified a lithic metamorphi-clastic petrofacies, characterized by abundant fine-grained schists and phyllites sourced from the crystalline terrains of the Coastal Range front and carried by the Savuto River. The sand is also composed of a mineral assemblage comparable to that of the Amato River provenance. In terms of framework detrital constituents of QFL (quartz:feldspars:aphanitic lithic fragments) and of essential extraclasts, such as granitoid:sedimentary:metamorphic phaneritic rock fragments (Rg:Rs:Rm), sand maturity changes moderately from backshore to shoreface, suggesting that transport processes had a little effect on sand maturity. Moreover, the modal composition suggests that the Capo Suvero promontory does not obstruct longshore sand transport from the north. Indeed, sands displaced by currents driven by storm-wave activity bypass this rocky headland.

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Section: Modal Compositionmentioning

confidence: 99%

Shoreline evolution and modern beach sand composition along a coastal stretch of the Tyrrhenian Sea, southern Italy

Morrone

Ietto

2021

J. Palaeogeogr.

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“…All samples are characterized by a higher proportion of shards with respect to pumices showing a minor amount of altered glass (Appendix A, Table 1). Relative proportions of Lv:M:S (e.g., [62]) (Figure 4B) show a great dispersion with clustering of data as a function of sediment gravity flows and energy, with a composition becoming lithic-rich (volcanic) basinward and more "sialic" in the proximal facies. The intermediate composition of the two Santa Caterina samples could represent an intermediate composition.…”

Section: Modal Compositionsmentioning

confidence: 98%

“…In addition to classical Q + C:GRF + Gneis-sRF: other + C [58], LmLvLs (e.g., [59]), we used less traditional diagrams (e.g., Lv:M:S) (Figures 3 and 4), to consider the information from the volcaniclastic supply combined with the non-volcanic components in the studied arenites. Specifically, the diagram shown in Figure 4B may be useful particularly for unravelling sand-size sediments provenance in geodynamic settings where explosive arc magmatism produces pyroclastic units as potential source rocks (e.g., [61,62]). [60]).…”

Section: Petrographymentioning

confidence: 99%

High Preservation Potential Volcaniclastic Sedimentation in the Serravallian Sequence of the Amantea Basin (Coastal Chain, North-Western Calabria)

et al. 2021

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Evidence of volcaniclastic sedimentation occurs in the first depositional sequence of the sedimentary succession of the Amantea Basin. Volcaniclastic deposits are intercalated in the upper part of a sandstone formation and these show a maximum thickness of about 8 m. The Amantea Basin is a Neogene depozone located along the Tyrrhenian margin of Calabria whose onset started during the Upper Serravallian. The source volcano to these materials had to have been located within or near to the marine basin in order to supply it with significant amounts of pyroclastic fragments emplaced by either pyroclastic fall/or flows during one or more explosive eruptions. The marine environment of volcaniclastic flows made up of pyroclastic fragments mixed with minor siliciclastic and carbonate material. The textural and structural features of the deposits and the composition of the volcanic glass fragments indicate an origin from a sub-aerial coeval explosive eruption, with initial sedimentation in a shallow marine environment, mixing with non-volcanic materials, reworking and final re-sedimentation into the basin. The age of the volcaniclastic/sedimentary sequence makes these deposits a marker for the geodynamic evolution of the area, and the lack of such horizons in the other coeval peri-Tyrrhenian basins allows us to consider the Amantea Basin as a confined elongated coastal basin area, whose tectonostratigraphic architecture denotes a structural partitioning of the eastern nascent Tyrrhenian Basin.

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“…Volcaniclastic epiclastic sandy grains consist of a mixture of chemically and mechanically durable felsitic grains such as rhyolite and dacite (e.g., Garzanti et al 2002), with intermediate durability such as andesite (Mack and Jerzykiewicz 1989;Cather and Folk 1991;Smith and Lotosky 1995), and unstable such as basalts fragments (e.g., Marsaglia 1993;Critelli and Ingersoll 1995;Critelli et al 2002;Morrone et al 2017Morrone et al , 2020, and glass-rich hyaloclastite and pillow basalts grains (Furnes et al 2008;Saetre et al 2019). In this latter case, pores and vesicules diminish rapidly durability of pillow basalts and hyaloclastites source rock lithotypes (e.g., Haraldsson 1984;Fisk and McLoughlin 2013), with a consequent impoverishment of the sand fraction in the siliciclastic detritus (e.g., Palomares and Arribas 1993).…”

Section: Introductionmentioning

confidence: 99%

“…Deduction of interface properties from analysis of natural sediments is very often difficult (e.g., Weltje 2012;Weltje et al 2018) and, even more for volcaniclastic lithic grains which are highly sensitive to chemical alteration (e.g., Marsaglia 1992;Johnsson et al 1993; Le Pera and Morrone 2018) and to destruction by transport (Cameron and Blatt 1971;Davies et al 1978;Cather and Folk 1991;Morrone et al 2018) before the particles are buried by later pyroclastic events or reworked into the marine record (e.g., Morrone et al 2017Morrone et al , 2020. The use of mineral interfaces in sand-sized rock fragments derived from effusive and pyroclastic source rocks has received much less attention, probably because they, especially their glassy component, are strongly dependent by chemical weathering (e.g., Johnsson et al 1993), such as the very active and high rate of glass hydrolysis (e.g., White et al 1986), glass breakdown and transformation to clay minerals (e.g., Lowe 1986;King 1986) or to both analcime and palagonite (e.g., Saetre et al 2018Saetre et al , 2019.…”

Section: Introductionmentioning

confidence: 99%

The use of mineral interfaces in sand-sized volcanic rock fragments to infer mechanical durability

Pera

Morrone

2020

J. Palaeogeogr.

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The use of mineral interfaces, in sand-sized rock fragments, to infer the influence exerted by mechanical durability on the generation of siliciclastic sediments, has been determined for plutoniclastic sand. Conversely, for volcaniclastic sand, it has received much less attention, and, to our knowledge, this is the first attempt to make use of the volcaniclastic interfacial modal mineralogy of epiclastic sandy fragments, to infer mechanical durability control at a modern beach environment. Volcaniclastic sand was collected along five beaches developed on five islands, of the southern Tyrrhenian Sea (Alicudi, Filicudi, Salina, Panarea and Stromboli) from the Aeolian Archipelago, and one sample was collected near the Stromboli Island volcanic crater. Each sample was sieved and thin sectioned for petrographic analysis. The modal mineralogy of the very coarse, coarse and medium sand fractions was determined by point-counting of the interfacial boundaries discriminating 36 types of interfaces categories, both no-isomineralic and/or no iso-structural (e.g., phenocrystal/glassy groundmass or phenocrystal/ microlitic groundmass boundaries) and iso-mineralic interfaces, inside volcanic lithic grains with lathwork and porphyric textures. A total of 47,386 interfacial boundaries have been counted and, the most representative series of interfaces, from the highest to the lowest preservation, can be grouped as: a) ultrastable interfaces, categorized

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Compositional and textural study of modern beach sands in the active volcanic area of the Campania region (southern Italy)

Cited by 22 publications

References 29 publications

Shoreline evolution and modern beach sand composition along a coastal stretch of the Tyrrhenian Sea, southern Italy

Shoreline evolution and modern beach sand composition along a coastal stretch of the Tyrrhenian Sea, southern Italy

High Preservation Potential Volcaniclastic Sedimentation in the Serravallian Sequence of the Amantea Basin (Coastal Chain, North-Western Calabria)

The use of mineral interfaces in sand-sized volcanic rock fragments to infer mechanical durability

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