Late Pleistocene and Holocene melting history of the Antarctic ice sheet derived from sea-level variations

Nakada, Masayuki; Kimura, Ryoji; Okuno, Jun’ichi; Moriwaki, Kazuo; Matsui, Hideki; Maemoku, Hideaki

doi:10.1016/s0025-3227(00)00018-9

Cited by 109 publications

(69 citation statements)

References 41 publications

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“…Holocene sea level rose rapidly from LGM until 6-7 ka, when most of the continental ice sheets have melted (Nakada et al, 2000). The presence of ∼5 ka emerged reefs at high tide elevation at several locations along the shores of the gulf (e.g.…”

Section: Discussionmentioning

confidence: 99%

“…Since the Last Glacial Maximum (∼20 ka) global sea level rose rapidly, and by ∼7 ka most of the glacial water has been discharged to the oceans (Shackleton and Opdyke, 1973;Fairbanks, 1989;Nakada et al, 2000;Yokoyama et al, 2000). Sea level indicators at locations around the world and glacio-hydro-isostatic models show that the pattern of relative sea level rise during the Middle and Late Holocene was not uniform in time and space, but rather depends on the proximity to the melting ice sheets and local tectonics (Pirazzoli, 1991;Lambeck and Nakada, 1992 , 1993).…”

Section: Introductionmentioning

confidence: 99%

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Late Holocene shorelines at the Gulf of Aqaba: migrating shorelines under conditions of tectonic and sea level stability

Shaked¹,

Marco²,

Lazar³

et al. 2002

Stephan Mueller Spec. Publ. Ser.

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Abstract. The Gulf of Aqaba (Elat) is a developing rift at the southern end of the Dead Sea Transform system. Studying fossil shorelines (coral reef terraces and beach rocks) we obtain constraints on the evolution of the gulf's coastal margin. Fossil reefs at the gulf indicate that during the past 6000 years sea level was relatively stable, and regional vertical tectonic movements were negligible. Nevertheless, south of Elat (NW corner of the gulf) we find that the shoreline has migrated seaward by more than 100 m, through accumulation of coarse clastic sediments. In the absence of a fluvial feeder at the location of the migrating shoreline, we suggest that long-shore processes transported the sediment.Our observations include sedimentary structures from two trenches dug in beach sediments, buried and emerged fossil reefs, and the local submarine slope morphology. We consider the regional Holocene climate and Holocene vertical displacements in the gulf, and infer that the eastward propagation of the shoreline reflects a delayed response to tectonic changes in coastal bathymetry or the result of climatic events.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Late Holocene shorelines at the Gulf of Aqaba: migrating shorelines under conditions of tectonic and sea level stability

Shaked¹,

Marco²,

Lazar³

et al. 2002

Stephan Mueller Spec. Publ. Ser.

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“…RSL data from Antarctica can constrain its ice sheet history [106][107][108][109] in this near-field region where large glacio-isostatic gradients occur [110]. The studies that exist from the Antarctic continent show RSL falling from an early Holocene marine limit of~20 m in the Antarctic Peninsula,~40 m in East Antarctica, and~30 m in Ross Ice Shelf [107,109].…”

Section: Antarctic Peninsulamentioning

confidence: 99%

Holocene Relative Sea-Level Changes from Near-, Intermediate-, and Far-Field Locations

Khan

Ashe

Shaw

et al. 2015

Curr Clim Change Rep

129

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Holocene relative sea-level (RSL) records exhibit spatial and temporal variability that arises mainly from the interaction of eustatic (land ice volume and thermal expansion) and isostatic (glacio-and hydro-) factors. We fit RSL histories from near-, intermediate-, and far-field locations with noisy-input Gaussian process models to assess rates of RSL change. Records from near-field regions (e.g., Antarctica, Greenland, Canada, Sweden, and Scotland) reveal a complex pattern of RSL fall from a maximum marine limit due to the net effect of eustatic sea-level rise and glacio-isostatic uplift with rates of RSL fall as great as −69±9 m/ka. Intermediatefield regions (e.g., mid-Atlantic and Pacific coasts of the USA, Netherlands, Southern France, St. Croix) display variable rates of RSL rise from the cumulative effect of eustatic and isostatic factors. Fast rates of RSL rise (up to 10±1 m/ka) are found in the early Holocene in regions near the center of forebulge collapse. Far-field RSL records exhibit a midHolocene highstand, the timing (between 8 and 4 ka) and magnitude (between <1 and 6 m) of which varies among South America, Africa, Asia, and Oceania regions.

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“…Furthermore, Peltier and Andrews (1976), Wu and Peltier (1983) and Tushingham and Peltier (1992) have argued that the sea-level predictions based on a uniform viscosity model can explain the global data base of relative sea-level changes. There are, however, a number of studies supporting a major increase in viscosity from the upper to lower mantle (e.g., Walcott, 1980;Nakada, 1983;Nakada and Lambeck, 1989;Nakada and Lambeck, 1991;Forte and Mitrovica, 1996). From independent arguments using the geoid anomalies around the subduction zone, Hager (1984) has also suggested a substantial increase in viscosity across the 670 km seismic discontinuity.…”

Section: Introductionmentioning

confidence: 99%

“…Mitrovica et al (1994b) predicted the present-day radial and horizontal deformation rates using the ICE-3G model (Tushingham and Peltier, 1991), and suggested that the predictions of horizontal velocity are dependent on the geometry of the late Pleistocene ice sheet and the deformation rates are very sensitive to the Earth's rheology. James and Ivins (1998) examined both the surface gravity anomaly and crustal motion caused by the past and present-day ice mass variations in Antarctica (see also Nakada et al, 2000), and concluded that viscoelastic crustal deformation rates and solid surface gravity change can be observed by modern geodetic techniques.…”

Section: Introductionmentioning

confidence: 99%

Effects of water load on geophysical signals due to glacial rebound and implications for mantle viscosity

Okuno

Nakada

2014

Earth Planet Sp

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We investigate the effects of the ocean function on predictions of the sea-level changes and other geophysical signals due to glacial rebound. To precisely predict these signals, a realistic ocean function including the effects of the palaeotopography, the distribution of ice sheet and meltwater influx is required. The adoption of a precise ocean function is very important in simulating the observables in Hudson Bay for an earth model with a low lower mantle viscosity of ∼10 21 Pa s. In this case, the contribution from water loads can be comparable to that from ice loads. In the Fennoscandian region, however, the predictions are less sensitive to the details of the ocean function, because the width of the Gulf of Bothnia is very small compared with that of Hudson Bay. With an assumption that the ice model is represented by ARC3+ANT4b, we have examined the viscosity structure using relative sea-levels, gravity anomaly and solid surface gravity changes in North America and northern Europe. This study suggests a lower mantle viscosity of greater than 10 22 Pa s and a upper mantle viscosity of (4 ∼ 10) × 10 20 Pa s.

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Late Pleistocene and Holocene melting history of the Antarctic ice sheet derived from sea-level variations

Cited by 109 publications

References 41 publications

Late Holocene shorelines at the Gulf of Aqaba: migrating shorelines under conditions of tectonic and sea level stability

Late Holocene shorelines at the Gulf of Aqaba: migrating shorelines under conditions of tectonic and sea level stability

Holocene Relative Sea-Level Changes from Near-, Intermediate-, and Far-Field Locations

Effects of water load on geophysical signals due to glacial rebound and implications for mantle viscosity

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