Holocene sea-level fluctuation in the southern hemisphere

Isla, Federico Ignacio

doi:10.1016/0277-3791(89)90036-x

Cited by 154 publications

(71 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Mean sea temperature has been estimated as 3-6º C lower than at present (Heusser, 1989a, b). The maximum transgressive episode occurred between 9 and 7 ka BP (Isla, 1989). Around 8 ka BP the present Beagle Channel, as one of the inland passages in the complex network of channels, inlets and islands of the Fuegian Archipelago, was occupied by marine waters that flooded progressively via constricted waterways connected to the open ocean.…”

Section: Phase 2: Early Holocene Conditionsmentioning

confidence: 99%

Quaternary molluscan faunas from the island of Tierra del Fuego after the Last Glacial Maximum

Gordillo¹,

Coronato²,

Rabassa³

2005

Sci. Mar.

View full text Add to dashboard Cite

SUMMARY: Palaeontological studies on postglacial molluscan faunas from marine deposits located along the northern coast of the Beagle Channel (lat. 54°55'S, long. 68°34'-67°11'W) showed differences of various molluscan assemblages during a period of climatic stability after deglaciation. Oceanographic changes, different local environmental conditions and/or episodes of minor climatic fluctuations are pointed out as causes for the variations in faunal composition. Comparison with Quaternary molluscs from Antarctica showed that these palaeofaunas overlap slightly at the species level, but have a considerable number of genera (23%) and families (50%) in common. These affinities and relationships are better explained on the basis of more recent migrating taxa than by ancient connections when the two regions formed part of the Weddellian Province.Keywords: mollusc assemblages, Tierra del Fuego, Beagle Channel, palaeoenvironments, Quaternary. RESUMEN: FAUNAS CUATERNARIAS DE MOLUSCOS DE LA ISLA DE TIERRA DEL FUEGO DESPUÉS DEL ÚLTIMO MÁXIMO GLACIAL.-Estudios paleontológicos en faunas de moluscos postglaciales hallados en depósitos marinos sobre la costa norte del Canal Beagle (lat. 54°55'S; long. 68°34'-67°11'O) demostraron que las diferencias en varias asociaciones de moluscos ocurridas en un período de estabilidad climática después de la última deglaciación se deben a variaciones en la composición faunísti-ca que siguen a los cambios oceanográficos, a situaciones ambientales localmente diferentes y/o episodios con fluctuaciones climáticas menores. La comparación con moluscos cuaternarios de Antártica muestra que estas faunas tienen un ligero solapamiento a nivel especie, pero un considerable número de géneros (23%) y familias en común (50%). Estas afinidades y relaciones se explican mejor en base a migraciones recientes de taxones, que en base a antiguas conexiones cuando las dos regiones formaban parte de la Provincia Weddelliana.

show abstract

Section: Phase 2: Early Holocene Conditionsmentioning

confidence: 99%

Quaternary molluscan faunas from the island of Tierra del Fuego after the Last Glacial Maximum

Gordillo¹,

Coronato²,

Rabassa³

2005

Sci. Mar.

View full text Add to dashboard Cite

show abstract

“…Chappell, 1983;Flood and Frankel, 1989;Isla, 1989;Pirazzoli, 1991;Beaman et al, 1994;Cavallotto et al, 2004;Lewis et al, 2013;Martinez and Rojas, 2013) (Fig. 4.A, F and G).…”

Section: Sea Level Changes Representationmentioning

confidence: 89%

“…Chappell, 1983;Matsushina et al, 1984;Flood and Frankel, 1989;Isla, 1989;Pirazzoli, 1991;Beaman et al, 1994;Baker and Haworth, 2000;Ramsay and Coper, 2002;Cavallotto et al, 2004;Sloss et al, 2007;Lewis et al, 2013;Martinez and Rojas, 2013). In Brazil, these studies have mainly been conducted since the 1970's and the vertical amplitudes ranged from 2 to 5.3 m (e.g.…”

Section: Introductionmentioning

confidence: 99%

Holocene Paleo-Sea Level in Southeastern Brazil: An Approach Based on Vermetids Shells

et al. 2017

View full text Add to dashboard Cite

This paper reconstructs the relative sea level changes during the Holocene on the southeastern Brazilian coastal region (Armação dos Búzios city, at north of Rio de Janeiro state), based on the presence of rocky bottom worm snails, Vermetidae (Mollusca: Gastropoda) as bioindicators. Chronology was established by radiocarbon Accelerator Mass Spectrometry technique. Three evolutionary stages of sea level were established: sea-level lower than the current one between 8,148-6,300 cal yr BP, a rising of sea level between 6,300-4,500 cal yr BP, with a transgressive maximum of about 2.4 m above the present level at 4,700-4,500 cal yr BP, and a sea level drop from 4,500 cal yr BP until the present.

show abstract

“…Although there is no consensus on the subject of climate (see Tonni et al, 1999), between ∼7.5-5 kybp the spectrum of mammals reflect a humid climate (Prado and Alberdi, 1999). Most scholars currently agree that there was a climate change in Buenos Aires province during 5 kybp (Iriondo and García, 1993;Iriondo, 1995;Prieto, 1996;Prado and Alberdi, 1999;among others) and that a humid regime may have existed at the time of the Holocene marine transgression during a period of high sea level at ∼5-6 kybp (Isla, 1989). This phenomenon has been reported to have occurred in several places along the cost of the Buenos Aires province (see Weiler, 1994;Pirazzoli, 1996).…”

Section: Discussionmentioning

confidence: 99%

Rock magnetic study of fluvial Holocene soil from Buenos Aires province (Argentina)

Vasquez

Nami

2006

Earth Planet Sp

View full text Add to dashboard Cite

The magnetic characteristics of soils are widely used in environmental and paleoclimatic investigations for studying the several factors involved in the soil formation process. We propose here a new analytical tool that takes into account the variations in magnetic properties correlated with grain sizes and concentrations of ferrimagnetic minerals. This analytical tool is based on a mathematical model of well-established magnetic properties in samples of known grain sizes and was used in this study to determine changes in the grain size and concentration of ferrimagnetic minerals along a terminal Pleistocene/Holocene fluvial section located in the northeast of Buenos Aires province. These variations may reflect a humid period prevailing in the area and may be associated with climate changes that occurred in the Chaco-Pampean region during the Middle Holocene.

show abstract

Holocene sea-level fluctuation in the southern hemisphere

Cited by 154 publications

References 35 publications

Quaternary molluscan faunas from the island of Tierra del Fuego after the Last Glacial Maximum

Quaternary molluscan faunas from the island of Tierra del Fuego after the Last Glacial Maximum

Holocene Paleo-Sea Level in Southeastern Brazil: An Approach Based on Vermetids Shells

Rock magnetic study of fluvial Holocene soil from Buenos Aires province (Argentina)

Contact Info

Product

Resources

About