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Late Quaternary tectonic movements and sea-level changes at Timor and Atauro Island

1978; Geological Society of America; Volume: 89; Issue: 3 Linguagem: Inglês

10.1130/0016-7606(1978)89 2.0.co;2

1943-2674

John Chappell, H. H. Veeh,

earthquake and tectonic studies

Research Article| March 01, 1978 Late Quaternary tectonic movements and sea-level changes at Timor and Atauro Island J. CHAPPELL; J. CHAPPELL 1Department of Geography, S.G.S., Australian National University, Canberra, A.C.T. 2600, Australia Search for other works by this author on: GSW Google Scholar H. H. VEEH H. H. VEEH 2School of Earth Sciences, Flinders University of South Australia, Adelaide, Australia Search for other works by this author on: GSW Google Scholar Author and Article Information J. CHAPPELL 1Department of Geography, S.G.S., Australian National University, Canberra, A.C.T. 2600, Australia H. H. VEEH 2School of Earth Sciences, Flinders University of South Australia, Adelaide, Australia Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (1978) 89 (3): 356–368. https://doi.org/10.1130/0016-7606(1978)89 2.0.CO;2 Article history First Online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation J. CHAPPELL, H. H. VEEH; Late Quaternary tectonic movements and sea-level changes at Timor and Atauro Island. GSA Bulletin 1978;; 89 (3): 356–368. doi: https://doi.org/10.1130/0016-7606(1978)89 2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract Flights of raised coral terraces on the north coast of East Timor and at Atauro Island, north of Timor, are described stratigraphically and dated by Th230-U234 determinations. The exposures at southern Atauro enable detailed reconstruction of the history of transgressions and regressions, especially for the period 140,000 to 105,000 yr B.P. Sea-level changes identified in Barbados and New Guinea are closely confirmed. The Atauro uplift rate is 0.47 m/1,000 yr, as estimated from the highest position of shallow-water coral faunas in the reef, which is dated as 120,000 old. The extrapolated rate is used to estimate ages of higher reefs; these ages correlate quite well with periods of major glacio-eustatic rise indicated by the O18 record of Pacific cores back to 700,000 yr B.P. Reefs from three sites along the north coast of Timor have been dated within the 84,000, 105,000, and 120,000 yr B.P. high sea-level periods and indicate uplift at 0.5 m/1,000 yr. A 120,000-yr-old reef from a fourth north Timor site, near Dili, indicates much slower uplift, about 0.03 m/1,000 yr. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.