Microtextural characteristics of quartz grains transported and deposited by tsunamis and storms

Costa, Pedro; Andrade, César; Dawson, Alastair; Mahaney, William C.; Freitas, Maria Conceição; Paris, Raphaël; Taborda, Rui

doi:10.1016/j.sedgeo.2012.07.013

Cited by 102 publications

(95 citation statements)

References 47 publications

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“…However, several studies (e.g., Williams et al 1998;Mahaney 2002;Peterknecht and Tietz 2011;Udayaganesan et al 2011;Costa et al 2012;Costa et al 2013;Vos et al 2014;Bellanova et al 2016) demonstrate progress in the application of this methodology by applying semi-quantitative approaches and developing stronger links with geological processes to confirm microtexture analysis as a technique of considerable utility, particularly in provenance studies.…”

Section: Microtextural Mechanical Imprints and Their Association Withmentioning

confidence: 99%

“…This conclusion has been applied to other sedimentary environments, particularly glacial systems, where 10% ± of thousands of grains studied sojourned without contact through hundreds of kms without detectable grain resurfacing (Mahaney 2002). Nearly complete grain resurfacing seems to occur only over long-distance transport (Mahaney 2002) and/or under extremely high-energy conditions with velocities > 10 m/s (i.e., tsunamis, Mahaney et al 2010 andCosta et al 2012). …”

Section: Microtextural Mechanical Imprints and Their Association Withmentioning

confidence: 99%

“…Moreover, site-specific constraints (e.g., sediment source) limit extrapolations elsewhere. Costa et al (2012) used approximately 4000 quartz grains from tsunami deposits and present-day analogs (nearshore, beach, dune, and alluvial samples) from a group of locations worldwide (Portugal, Indonesia, and Scotland) to characterize grains laid down by tsunami waves (transported in an aqueous environment) and to establish, whenever { PAGE \* MERGEFORMAT } { PAGE \* MERGEFORMAT } possible, the provenance of such grains. Their results point to the difficulties of assigning general microtextural features to specific sedimentary environments, even though, in some cases, the results proved conclusive and established likely sources for quartz grains transported and deposited by tsunami waves.…”

Section: Microtextural Mechanical Imprints and Their Association Withmentioning

confidence: 99%

“…Numerous efforts (e.g., Krinsley and Margolis 1969;Pyokari 1997;Abu-Zeid et al 2001;Mahaney 2002;Bull and Morgan 2006;Costa et al 2009;Deane 2010;Costa et al 2012;Costa et al 2013;Vos et al 2014, Bellanova et al 2016) have been made to characterize surface microscopic signatures in quartz grains from a range of diverse sedimentary environments, but all are inferential and based on contingent geological variables. The results proposed have been not consensual in the interpretation of specific microfeatures and in the interpretation of some imprinting mechanisms or processes.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Imprints In Silica Grains Induced During An Open-Channel Flow Experiment: Determination of Microtextural Signatures During Aqueous Transport

Costa

Park

Kim

et al. 2017

Journal of Sedimentary Research

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The aim of this work is to identify and characterize microtextural signatures in silica\glass grains (used as analogous to quartz) that are produced during aqueous transport at different flow velocities, with variable sediment concentrations, transport distances, and time intervals. To achieve this, an open-channel flow experiment was conducted with a mixture of sand and silica\glass microspheres in varying conditions -velocity (from 0.67 to 1.4 m/s), duration (1 or 10 minutes), distance (0 to 2.5 m) and sediment concentration (60% or 80%). Experimental conditions were used to replicate natural phenomena such as river superficial velocity or coastal swash processes.Before to the experiment the microsphere surfaces were imaged and clear of any microtextural imprint.

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Section: Microtextural Mechanical Imprints and Their Association Withmentioning

confidence: 99%

Section: Microtextural Mechanical Imprints and Their Association Withmentioning

confidence: 99%

Section: Microtextural Mechanical Imprints and Their Association Withmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Imprints In Silica Grains Induced During An Open-Channel Flow Experiment: Determination of Microtextural Signatures During Aqueous Transport

Costa

Park

Kim

et al. 2017

Journal of Sedimentary Research

Self Cite

View full text Add to dashboard Cite

show abstract

“…In particular, he argues that geomorphological interpretation is fundamental to stratigraphic analyses of this kind to ensure that inferred links to storm and hurricane provenance are justified. Costa et al (2012) contribute an empirical microtexture approach that can increase the confidence with which deposits can be attributed to high-energy (tsunami or storm) events. In many systems, of course, complex imprints of sea-level change and discrete storm events are rendered ambiguous as a consequence of coeval morphodynamics, such as shifts in estuarine channel location (e.g.…”

Section: Coastal Signatures Of Holocene Climatic Variabilitymentioning

confidence: 99%

Coasts and climate

French

Burningham

2013

Progress in Physical Geography: Earth and Environment

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Geomorphology is increasingly engaged with the connections between coastal behaviour and climate variability and change. While impacts of climate change at the coast are often primarily viewed in terms of landform adjustments to accelerated sea-level rise, geomorphologists are also starting to unlock the subtleties of how coastal processes are forced by a broader suite of climate factors. This progress report highlights three main strands of recent geomorphological research in this vein: the search for a broader suite of climatic signatures in recent coastal deposits; empirical analyses of the linkages between climate variables and contemporary shoreline change; and enhancement of our capability to predictively model climate-driven changes in coastal morphology.

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Distinguishing depositional environments in the beach–dune system of Chandipur, India, based on sediment texture and quartz grain surface features

Saha

Sinha

2023

Earth Surf Processes Landf

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An attempt has been made to discern sedimentary environments in a tropical coastal setting in Chandipur, India, using variations in grain size. Samples were collected along one 100 m‐long cross‐shore transect extending from the tide/aqueous‐influenced seaward region to the aeolian‐dominated landward region. Various grain size data analysis approaches, like bivariate data plots and discrimination functions, were used to discriminate the sedimentary environments and establish the process of sediment deposition. The analytical results suggest that diverse granulometric parameters translate different sedimentary environments such as tidal flat, beach and dune. Additionally, the surface morphologies of quartz grains were used to understand the evolution of recent mechanical, chemical and mechanical–chemical processes in this tropical coastal region. Changes in the surficial microtextural properties of quartz grains were documented at various sites of all geomorphic units along this transect, from the tidal flat to the dune. One‐way analysis of variance (ANOVA) was used to understand the significant differences in microtextural features between these units. Subaqueous surface textures such as large conchoidal fractures, sharp edges, arcuate steps and straight and curved grooves were dominant in the grains of the tidal flat. The presence of meandering ridges, upturned plates, bulbous edges and adhering particles on quartz gradually increases as the transect ascends landward. Correlation plots between distance and microtextures, along with ANOVA, suggest that aeolian transportation modulated the surface textures. Such assessment of distinct sedimentary characteristics and transport processes may serve as a modern analogue for ancient deposits on the siliciclastic coast.

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Microtextural characteristics of quartz grains transported and deposited by tsunamis and storms

Cited by 102 publications

References 47 publications

Imprints In Silica Grains Induced During An Open-Channel Flow Experiment: Determination of Microtextural Signatures During Aqueous Transport

Imprints In Silica Grains Induced During An Open-Channel Flow Experiment: Determination of Microtextural Signatures During Aqueous Transport

Coasts and climate

Distinguishing depositional environments in the beach–dune system of Chandipur, India, based on sediment texture and quartz grain surface features

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