Holocene marine terraces on the northeast coast of North Island, New Zealand, and their tectonic significance

Ôta, Yôko; Hull, Alan G.; Iso, Nozomi; Ikeda, Yasutaka; Moriya, Ichio; Yoshikawa, Torao

doi:10.1080/00288306.1992.9514521

Cited by 49 publications

(57 citation statements)

References 30 publications

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“…1) for environmental interpretation and amino acid dating, the results of which are presented in the following sections. The lower terrace is at c. 40 m a.s.l., and was named the Amuri Bluff Terrace by Ota et al ( 1984). The terrace surface is underlain by c. 3 m of loess, which may be divided into two units by a weak paleosol, and by c. 5 m of marine silt and gravel.…”

Section: Haumuri Bluffsmentioning

confidence: 99%

“…The abrasion platform is c. 32 m a.s.l.. The Amuri Bluff Terrace is thus about one-quarter of the elevation of the Tarapuhi Terrace at Haumuri Bluffs, and c. 2 km to the southwest the intermediate level Kemps Hill Terraces are at c. 90 and 110 m a.s.l., or two-thirds the elevation of the Tarapuhi Terrace (Ota et al 1984, fig. 2, 3).…”

Section: Haumuri Bluffsmentioning

confidence: 99%

“…The highest terrace, with an abrasion platform at c. 162 m a.s.l. determined by Ota et al (1984) (top of marine deposits is 164 m a.s.l. according to Fleming & Suggate 1964), was named the Tarapuhi Terrace by Ota et al (1984) and was tentatively correlated with the antepenultimate interglacial, following Suggate (1965).…”

Section: Haumuri Bluffsmentioning

confidence: 99%

“…determined by Ota et al (1984) (top of marine deposits is 164 m a.s.l. according to Fleming & Suggate 1964), was named the Tarapuhi Terrace by Ota et al (1984) and was tentatively correlated with the antepenultimate interglacial, following Suggate (1965). The terrace surface is moderately dissected and gently rolling, with, in places, a steep riser along its northern margin down to a lower marine terrace.…”

Section: Haumuri Bluffsmentioning

confidence: 99%

“…In neither mterpretaion were field observations presented to support them. Ota et al (1984) described marine terraces in the Conway River -Haumuri Bluffs area, and tentatively assigned the sequence of terraces to the last three mterglacials, based on morphostratigraphical observation.…”

Section: Introductionmentioning

confidence: 99%

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Pleistocene coastal terraces of Kaikoura Peninsula and the Marlborough coast, South Island, New Zealand

Ôta

Pillans

Berryman

et al. 1996

New Zealand Journal of Geology and Geophysics

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Section: Haumuri Bluffsmentioning

confidence: 99%

Section: Haumuri Bluffsmentioning

confidence: 99%

Section: Haumuri Bluffsmentioning

confidence: 99%

Section: Haumuri Bluffsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Pleistocene coastal terraces of Kaikoura Peninsula and the Marlborough coast, South Island, New Zealand

Ôta

Pillans

Berryman

et al. 1996

New Zealand Journal of Geology and Geophysics

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Late Quaternary uplift across northwest Luzon Island, Philippines constrained from emergent coral reef terraces

Maxwell

Ramos

Tsutsumi

et al. 2018

Earth Surf Processes Landf

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Emergent coral reef terraces in northwest Luzon Island, Philippines are studied to understand relative sea level (RSL) changes and uplift along the Manila Trench forearc region during the Late Quaternary. Coral reef sequences in Currimao, Badoc, and Badoc Island were mapped and were described based on geomorphological characteristics, elevation patterns, and ages. The lower emergent coral reef terraces, which are dated Holocene, are subdivided into three to possibly four terrace steps (TI–TIV in ascending order) with the highest terrace (TIII–TIV) rising up to ~7–9 m amsl. The well‐preserved staircase morphology and meter‐scale terrace risers possibly imply episodes of abrupt RSL changes that resulted from coseismic uplift during the mid‐Holocene. Around 6.8 kyr BP, ~3 m of rapid uplift (possibly coseismic) is inferred to account for the vertical separation of TI (6.2 kyr BP at 3.5 m amsl) and TII (6.8 kyr BP at 6.6 m amsl) in Currimao site. A subsequent episode of RSL fall occurred at 6 kyr BP, based on dated coral samples, and has emerged the lowest terraces in the study sites. New geomorphic and radiometric data suggest that the mid‐Holocene sea level highstand in northwest Luzon occurred at around 7–6 kyr BP. From the elevation and thorium‐230 age of dated terrace surfaces, we estimated Holocene uplift rates from 0.17 ± 0.12 to 0.82 ± 0.15 mm/yr across the three study sites. The estimated uplift rates of northwest Luzon are relatively lower than the uplift rates reported in similar tectonically active regions of the west Pacific such as Papua New Guinea, Taiwan, New Zealand, and Japan. The geomorphological characteristics and age of emergent coral reef terraces reported in this study offer insights on the preservation of long‐term deformation along the northwest Luzon coastal plain that is bordered by a subduction zone and upper‐plate faults. © 2018 John Wiley & Sons, Ltd.

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Tributary‐junction fans as buffers in the sediment cascade: a multi‐decadal study

Leenman

Tunnicliffe

2020

Earth Surf Processes Landf

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Alluvial fans at tributary junctions modulate sediment flux through river networks, by buffering the mainstem channel from disturbance in the tributaries. Buffering occurs through the storage (and release) of sediment in fans. Here, we use an extensive historic dataset to characterise the ways in which fan buffering can change as sediment supply varies. In New Zealand's East Coast region, sediment supply and fluvial transport are prolific by global standards. We reconstruct how tributary‐junction fans in this region have responded to sediment generated by deforestation and extreme storms. The dynamics of five fans along the Tapuaeroa River are examined for the period 1939–2015. In response to major sediment loading, fans aggraded by up to 12 m and prograded by up to 170 m. Net sediment accumulation ranged from near zero to 1.5×106 m3. Fan size, gradient, sediment storage and buffering were influenced by both upstream and downstream controls. Key upstream (tributary) influences were sediment supply and stream power; downstream (mainstem) influences included distal confinement and, importantly, the nature of fan interaction with the mainstem, which aggraded by up to 6 m. The fans' ability to buffer the Tapuaeroa River from change in the tributaries was largely governed by this downstream interaction: as the mainstem aggraded, it increasingly curtailed fan progradation, thus limiting buffering. Previous studies of tributary‐junction fans have related fan morphometry to basin characteristics. However, we find that fan slope and area can vary considerably at decadal, annual or even monthly timescales. Consequently, we suggest that such studies could benefit by examining regional histories of disturbance. © 2019 John Wiley & Sons, Ltd.

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Holocene marine terraces on the northeast coast of North Island, New Zealand, and their tectonic significance

Cited by 49 publications

References 30 publications

Pleistocene coastal terraces of Kaikoura Peninsula and the Marlborough coast, South Island, New Zealand

Pleistocene coastal terraces of Kaikoura Peninsula and the Marlborough coast, South Island, New Zealand

Late Quaternary uplift across northwest Luzon Island, Philippines constrained from emergent coral reef terraces

Tributary‐junction fans as buffers in the sediment cascade: a multi‐decadal study

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