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Titolo:
Sea-level and environmental changes since the last interglacial in the Gulf of Carpentaria, Australia: an overview
Autore:
Chivas, AR; Garcia, A; van der Kaars, S; Couapel, MJJ; Holt, S; Reeves, JM; Wheeler, DJ; Switzer, AD; Murray-Wallace, CV; Banerjee, D; Price, DM; Wang, SX; Pearson, G; Edgar, NT; Beaufort, L; De Deckker, P; Lawson, E; Cecil, CB;
Indirizzi:
Univ Wollongong, Sch Geosci, Wollongong, NSW 2522, Australia Univ Wollongong Wollongong NSW Australia 2522 ongong, NSW 2522, Australia Oklahoma State Univ, Dept Phys, Stillwater, OK 74078 USA Oklahoma State Univ Stillwater OK USA 74078 hys, Stillwater, OK 74078 USA US Geol Survey, St Petersburg, FL 33701 USA US Geol Survey St Petersburg FL USA 33701 ey, St Petersburg, FL 33701 USA CEREGE, CNRS, F-13540 Aix En Provence 4, France CEREGE Aix En Provence France 4 CNRS, F-13540 Aix En Provence 4, France Australian Natl Univ, Dept Geol, Canberra, ACT 0200, Australia Australian Natl Univ Canberra ACT Australia 0200 rra, ACT 0200, Australia Australian Nucl Sci & Technol Org, Lucas Heights Res Labs, Menai, NSW 2234, Australia Australian Nucl Sci & Technol Org Menai NSW Australia 2234 234, Australia US Geol Survey, Reston, VA 20192 USA US Geol Survey Reston VA USA 20192US Geol Survey, Reston, VA 20192 USA
Titolo Testata:
QUATERNARY INTERNATIONAL
, volume: 83-5, anno: 2001,
pagine: 19 - 46
SICI:
1040-6182(2001)83-5:<19:SAECST>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
REGENERATIVE-DOSE PROTOCOL; MARINE OSTRACOD SHELLS; GREAT-BARRIER-REEF; PALAEOENVIRONMENTAL INDICATOR; RETROSPECTIVE DOSIMETRY; PALEOCLIMATE CONTROLS; COMMUNITY STRUCTURE; NORTHERN AUSTRALIA; SOUTHERN AUSTRALIA; CONTINENTAL-SHELF;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
72
Recensione:
Indirizzi per estratti:
Indirizzo: Chivas, AR Univ Wollongong, Sch Geosci, Wollongong, NSW 2522, Australia Univ Wollongong Wollongong NSW Australia 2522 2522, Australia
Citazione:
A.R. Chivas et al., "Sea-level and environmental changes since the last interglacial in the Gulf of Carpentaria, Australia: an overview", QUATERN INT, 83-5, 2001, pp. 19-46

Abstract

The Gulf of Carpentaria is an epicontinental sea (maximum depth 70 m) between Australia and New Guinea, bordered to the east by Torres Strait (currently 12 m deep) and to the west by the Arafura Sill (53 m below present sea level). Throughout the Quaternary, during times of low sea-level, the Gulf was separated from the open waters of the Indian and Pacific Oceans. forming Lake Carpentaria, an isolation basin, perched above contemporaneous sea-level with outlet channels to the Arafura Sea. A preliminary interpretation is presented of the palaeoenvironments recorded in six sediment cores collected by the IMAGES program in the Gulf of Carpentaria. The longest core (approx. 15 m) spans the past 130 ka and includes a record of sea-level/lake-level changes, with particular complexity between 80 and 40 ka when sea-level repeatedly breached and withdrew from Gulf/Lake Carpentaria. Evidence from biotic remains (foraminifers, ostracods. pollen), sedimentology and geochemistry clearly identifies a final marine transgression at about 9.7 ka (radiocarbon years). Before this transgression, Lake Carpentaria was surrounded by grassland, was near full. and may have had a surface area approaching 600 km x 300 km and a depth of about 15 m. The earlier rise in sea-level which accompanied the Marine Isotopic Stage 6/5 transgression at about 130 kais constrained by sedimentological and biotic evidence and dated by optical- and thermoluminescence and amino acid racemisation methods. (C) 2001 Elsevier Science Ltd and INQUA. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/01/21 alle ore 12:23:46