A new Holocene relative sea level curve for the South Shetland Islands, Antarctica

Watcham, Emma; Bentley, Michael J.; Hodgson, Dominic A.; Sj, Roberts; Fretwell, Peter T.; Lloyd, Jeremy M.; Larter, Robert D; Whitehouse, Pippa L.; Leng, Melanie J.; Monien, Patrick; Moreton, Steven G.

doi:10.1016/j.quascirev.2011.07.021

Cited by 107 publications

(202 citation statements)

References 76 publications

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“…Watcham et al, 2011), or by determining the age of an abandoned beach ridge, after accounting for the offset between the beach ridge and mean sea level in the modern setting. In some cases, sea-level indicators may only indicate whether a particular location was previously above or below sea level.…”

Section: Relative Sea-level Data 335mentioning

confidence: 99%

Glacial Isostatic Adjustment modelling: historical perspectives, recent advances, and future directions

Whitehouse¹

2018

Preprint

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Abstract. Glacial Isostatic Adjustment (GIA) describes the response of the solid Earth, the gravitational field, and 5 consequently the oceans to the growth and decay of the global ice sheets. It is a process that takes place relatively rapidly, triggering 100 m-scale changes in sea level and solid Earth deformation over just a few tens of thousands of years. Indeed, the first-order effects of GIA could already be quantified several hundred years ago without reliance on precise measurement techniques and scientists have been developing a unifying theory for the observations for over 200 years. Progress towards this goal required a number of significant breakthroughs to be made, including the recognition that ice sheets were once 10 more extensive, the solid Earth changes shape over time, and gravity plays a central role in determining the pattern of sealevel change. This article describes in detail the historical development of the field of GIA and an overview of the processes involved. Significant recent progress has been made as concepts associated with GIA have begun to be incorporated into parallel fields of research; these advances are discussed, along with the role that GIA is likely to play in addressing outstanding research questions within the field of Earth system modelling. 15

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Section: Relative Sea-level Data 335mentioning

confidence: 99%

Glacial Isostatic Adjustment modelling: historical perspectives, recent advances, and future directions

Whitehouse¹

2018

Preprint

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“…Важные сведения об изменениях уровня моря содержат донные осадки нескольких невысоко расположенных озёр полуострова [12,19] (см . рис .…”

Section: материалы и методы их палеогеографическое значениеunclassified

“…Длинное (отметка уреза -15 м над ур . моря) [19] позволил исполь зовать представления о глобальном ходе уров ня между 10 000 и 8000-7000 л .н . и построить трансгрессивный участок кривой, сменяющий ся периодом стабилизации .…”

Section: результатыunclassified

“…моря, началось ранее 6000 л .н . в пресноводных условиях [19], т .е . уровень моря располагался тогда ниже отметок 18-20 м .…”

Section: результатыunclassified

“…Ход этого понижения между 6000 и 4000 л .н . реконструируется прежде всего по ре зультатам изучения ископаемых диатомовых ком плексов и радиоуглеродной хронологии колонок донных осадков озёр пова Файлдс [12,19] . По следовательная смена морских условий осадко накопления на пресноводные в озёрах Китеж, Длинное и Альбатрос свидетельствует о падении уровня морских вод с возможным уменьшением скорости (или стабилизацией уровня) пример но между 5000 и 4000 л .н ., когда в двух последних озёрах после опреснения кратковременно появ лялись солоноватоводные условия (см .…”

Section: результатыunclassified

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Postglacial relative sea level change at Fildes Peninsula, King George Island (West Antarctic)

Полещук¹,

Verkulich²,

Ёжиков³

et al. 2016

Lëd i sneg

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Coupling patterns between para‐glacial and permafrost degradation responses in Antarctica

Oliva

Fernández

2015

Earth Surf Processes Landf

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The recently deglaciated environments in maritime permafrost regions are usually affected by very active paraglacial processes. Elephant Point is an ice‐free area of 1.16 km2 located in the SW of Livingston island (South Shetland Islands, Antarctica). Between 1956–2010 the retreat of the ice cap covering most part of this island has exposed 17.3% of the land surface in this peninsula. Two geomorphological units were identified in this new ice‐free area: a moraine extending from the western to the eastern coastlines and a relatively flat proglacial surface. The glacier in 1956 sat in contact with the northern slope of the moraine, but its accelerated retreat ‐ in parallel to the warming trend recorded in the Antarctic Peninsula ‐ left these areas free of glacier ice. Subsequently, the postglacial evolution was controlled by the relaxation phase typical of paraglacial systems. The typology and intensity of geomorphological processes show a significantly different dynamics between the southern and northern slopes of the moraine. This pattern is related to the different stage of paraglacial adjustment in both slopes. In the southern side, on coarser sediments, pronival ramparts, debris flows and alluvial fans are distributed, with a low to moderate activity of slope processes. In the northern side, mass wasting processes are extremely active on fine‐grained unconsolidated sediments. Ice‐rich permafrost is being degraded by thermokarst processes. Landslides and mudflows transfer large amounts of sediments down‐slope. The surface affected by retrogressive‐thaw slumps in the moraine has been quantified in 24,172 m2, which accounts for 9.6% of its surface. The abundance of kettle‐lakes is also indicative of the degradation of the ground ice. Paraglacial processes are expected to continue in the moraine and proglacial area in the near future, although their intensity and duration will depend on the magnitude and rate of future climate trends in the northern Antarctic Peninsula. Copyright © 2015 John Wiley & Sons, Ltd.

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A new Holocene relative sea level curve for the South Shetland Islands, Antarctica

Cited by 107 publications

References 76 publications

Glacial Isostatic Adjustment modelling: historical perspectives, recent advances, and future directions

Glacial Isostatic Adjustment modelling: historical perspectives, recent advances, and future directions

Postglacial relative sea level change at Fildes Peninsula, King George Island (West Antarctic)

Coupling patterns between para‐glacial and permafrost degradation responses in Antarctica

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