Vertical movements of ocean island volcanoes: Insights from a stationary plate environment

Ramalho, Ricardo S.; Helffrich, George; Cosca, Michael A.; Vance, Derek; Hoffmann, Dirk L.; Schmidt, Daniela N.

doi:10.1016/j.margeo.2010.04.009

Cited by 49 publications

(67 citation statements)

References 40 publications

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“…At a global scale, sequences are very rarely described in the absence of MIS 5e (e.g. Ramalho et al, 2010). Sequences including all MIS 5a, 5c, 5e paleoshorelines are, together, found in rapidly uplifting areas and/or under conditions of low erosion.…”

Section: Last Interglacial Mis 5ementioning

confidence: 99%

Coastal staircase sequences reflecting sea-level oscillations and tectonic uplift during the Quaternary and Neogene

Pedoja

Husson

Johnson

et al. 2014

Earth-Science Reviews

157

195

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This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues.Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. Many coasts feature sequences of Quaternary and Neogene shorelines that are shaped by a combination of sealevel oscillations and tectonics. We compiled a global synthesis of sea-level changes for the following highstands: MIS 1, MIS 3, MIS 5e and MIS 11. Also, we date the apparent onset of sequences of paleoshorelines either from published data or tentatively extrapolating an age for the uppermost, purported oldest shoreline in each sequence. Including the most documented MIS 5e benchmark, we identify 926 sequences out of which 185 also feature Holocene shorelines. Six areas are identified where elevations of the MIS 3 shorelines are known, and 31 feature elevation data for MIS 11 shorelines. Genetic relationships to regional geodynamics are further explored based on the elevations of the MIS 5e benchmark. Mean apparent uplift rates range from 0.01 ± 0.01 mm/yr (hotspots) to 1.47 ± 0.08 mm/yr (continental collision). Passive margins appear as ubiquitously uplifting, while tectonic segmentation is more important on active margins. From the literature and our extrapolations, we infer ages for the onset of formation for~180 coastal sequences. Sea level fingerprinting on coastal sequences started at least during mid Miocene and locally as early as Eocene. Whether due to the changes in the bulk volume of seawater or to the temporal variations in the shape of ocean basins, estimates of eustasy fail to explain the magnitude of the apparent sea level drop. Thus, vertical ground motion is invoked, and we interpret the longlasting development of those paleoshore sequences as the imprint of glacial cycles on globally uplifted margins in response to continental compression. The geomorphological expression of the sequences matches the amplitude and frequency of glacial cyclicity. From middle Pleistocene to present-day, moderately fast (100,000 yrs) oscillating sea levels favor the development of well identified strandlines that are distinct from one another. Pliocene and Lower Pleistocene strandlines associated with faster cyclicity (40,000 yrs) are more compact and easily merge into rasas, whereas older Cenozoic low-frequency eustatic changes generally led to widespread flat-lying coastal plains.

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Section: Last Interglacial Mis 5ementioning

confidence: 99%

Coastal staircase sequences reflecting sea-level oscillations and tectonic uplift during the Quaternary and Neogene

Pedoja

Husson

Johnson

et al. 2014

Earth-Science Reviews

157

195

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“…The Darwinian view involves prolonged subsidence of mid-ocean volcanoes and can now be integrated within the plate-tectonic framework to explain the relative location of different island types (Scott and Rotondo, 1983), particularly in the context of linear island chains in the Pacific Ocean. In such age-progressive island chains, the long-term subsidence trend that facilitates reef development is essentially driven by plate cooling and hotspot swell decay as the plate rapidly moves away from the hotspot (Morgan et al, 1995;Scott and Rotondo, 1983;Ramalho et al, 2010b). The Darwinian model is still generally accepted as a valid framework for reef evolution, and the classification of reef morphologies is still useful.…”

Section: Reef Development and Evolutionmentioning

confidence: 99%

“…In a similar fashion, accretion rates may differ according to environmental and oceanographic conditions and will have a profound effect on reef morphology. Local uplift -whose origins are still poorly understood or are the focus of hot debate (see Scott and Rotondo, 1983;McNutt and Menard, 1978;McMurtry et al, 2010;Ramalho et al, 2010b) -may further contribute to the variability in reef morphology. It is now perceived that the diversity of modern reef morphology essentially arises from the combined effects of island subsidence (or sometimes uplift), coral accretion rates, and Pleistocene glacioeustatic cycles (Woodroffe et al, 1999;Toomey et al, 2013).…”

Section: Reef Development and Evolutionmentioning

confidence: 99%

Coastal evolution on volcanic oceanic islands: A complex interplay between volcanism, erosion, sedimentation, sea-level change and biogenic production

Ramalho¹,

Quartau

Trenhaile

et al. 2013

Earth-Science Reviews

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151

147

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The growth and decay of oceanic hotspot volcanoes are intrinsically related to a competition between volcanic construction and erosive destruction, and coastlines are at the forefront of such confrontation. In this paper, we review the several mechanisms that interact and contribute to the development of coastlines on oceanic island volcanoes, and how these processes evolve throughout the islands' lifetime. Volcanic constructional processes dominate during the emergent island and subaerial shield-building stages. During the emergent island stage, surtseyan activity prevails and hydroclastic and pyroclastic structures form; these structures are generally ephemeral because they can be rapidly obliterated by marine erosion. With the onset of the subaerial shield-building stage, coastal evolution is essentially characterized by rapid but intermittent lateral growth through the formation of lava deltas, largely expanding the coastlines until they, typically, reach their maximum extension. With the post-shield quiescence in volcanic activity, destructive processes gradually take over and coastlines retreat, adopting a more prominent profile; mass wasting and marine and fluvial erosion reshape the landscape and, if conditions are favorable, biogenic processes assume a prominent role. Posterosional volcanic activity may temporarily reverse the balance by renewing coastline expansion, but islands inexorably enter in a long battle for survival above sea level. Reef growth and/or uplift may also prolong the island's lifetime above the waves. The ultimate fate of most islands, however, is to be drowned through subsidence and/or truncation by marine erosion.Keywords complex, interplay, between, volcanism, erosion, sedimentation, sea, level, islands, change, coastal, biogenic, production, oceanic, evolution, volcanic, GeoQuest Disciplines Medicine and Health Sciences | Social and Behavioral Sciences Publication DetailsRamalho, R. S., Quartau, R., Trenhaile, A. S., Mitchell, N. C., Woodroffe, C. D. & Avila, S. P. (2013). Coastal evolution on volcanic oceanic islands: a complex interplay between volcanism, erosion, sedimentation, sealevel change and biogenic production. Earth-Science Reviews, 127 140-170. AbstractThe growth and decay of oceanic hotspot volcanoes are intrinsically related to a competition between volcanic construction and erosive destruction, and coastlines are at the forefront of such confrontation. In this paper, we review the several mechanisms that interact and contribute to the development of coastlines on oceanic island volcanoes, and how these processes evolve throughout the islands' lifetime. Volcanic constructional processes dominate during the emergent island and subaerial shield-building stages. During the emergent island stage, surtseyan activity prevails and hydroclastic and pyroclastic structures form; these structures are generally ephemeral because they can be rapidly obliterated by marine erosion. With the onset of the subaerial shield-building stage, coastal evolution is essentially ch...

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“…Islands may uplift or subside with the seafloor as swell topography evolves (Ramalho et al, 2010a(Ramalho et al, , 2010b or as plate motion carries them over existing swells (Zhong and Watts, 2002). Rates of island vertical motion may therefore aid in constraining upper mantle dynamics in oceanic hotspot settings.…”

Section: Introductionmentioning

confidence: 99%

“…Vertical motion rates averaged over different timescales can also help to distinguish between asynchronous deformation processes. Nevertheless, few studies have compared observed rates of vertical motion to theoretical models (Wessel and Keating, 1994;Watts and Zhong, 2000;Zhong and Watts, 2002;Ramalho et al, 2010aRamalho et al, , 2010b.…”

Section: Introductionmentioning

confidence: 99%

Dominant influence of volcanic loading on vertical motions of the Hawaiian Islands

Huppert

Royden

Perron

2015

Earth and Planetary Science Letters

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Vertical movements of ocean island volcanoes: Insights from a stationary plate environment

Cited by 49 publications

References 40 publications

Coastal staircase sequences reflecting sea-level oscillations and tectonic uplift during the Quaternary and Neogene

Coastal staircase sequences reflecting sea-level oscillations and tectonic uplift during the Quaternary and Neogene

Coastal evolution on volcanic oceanic islands: A complex interplay between volcanism, erosion, sedimentation, sea-level change and biogenic production

Dominant influence of volcanic loading on vertical motions of the Hawaiian Islands

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