Dataset
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=http://catalogue.aodn.org.au/geonetwork/srv/eng/metadata.show?uuid=fae9173a-6fbc-71e4-e044-00144fdd4fa6&rft.title=Drowned dolines - the blue holes of the Pompey Reefs, Great Barrier Reef&rft.identifier=http://catalogue.aodn.org.au/geonetwork/srv/eng/metadata.show?uuid=fae9173a-6fbc-71e4-e044-00144fdd4fa6&rft.publisher=Bureau of Mineral Resources, Geology and Geophysics&rft.description=Blue holes occur at Cockatoo and Molar Reefs, in the Pompey hard line reefs. These two holes are roughly circular in shape, between 240-295 m in diameter, and 30-40 m deep. They are completely (Cockatoo) or partially (Molar) rimmed by profuse living coral and surrounded by lagoonal depths of 5-10 m. The inner slopes of the Cockatoo blue hole are 60-70° down to a depth of 25 m, below which coalescing sediment fans markedly reduce this angle. At the Molar blue hole, slopes are mainly gentler (45°) and sediment fans and terraces occur below 16 m. Distinct biological/sedimentary associations occur in both holes. Seismic refraction studies across the rim of the blue holes show a shallow (8.5-11 m) pre-Holocene surface beneath the rims. The balance of evidence suggests that the blue holes represent collapsed dolines which may have taken more than one low sea-level period to form. The original surface structures have been modified by subaerial solution processes, and subsequent sediment infill and coral growth following the Holocene transgression.Unknown&rft.creator=Isdale, P.J. &rft.creator=Jennings, J.N. &rft.creator=Moss, R. &rft.creator=Bureau of Mineral Resources, Geology and Geophysics &rft.creator=Hopley, D. &rft.creator=Harvey, N. &rft.creator=Barnett, J. &rft.creator=Davies, P.J. &rft.creator=Duncan, D.C. &rft.creator=Backshall, D.G. &rft.date=2015&rft.coverage=northlimit=-20.25; southlimit=-21.75; westlimit=150.0; eastLimit=152.0&rft.coverage=northlimit=-20.25; southlimit=-21.75; westlimit=150.0; eastLimit=152.0&rft_rights=license&rft_rights=Creative Commons Attribution 4.0 International Licence&rft_subject=Geoscientific Information &rft_subject=Ga Publication&rft_subject=Journal&rft_subject=Marine&rft_subject=Earth Sciences&rft.type=dataset&rft.language=English Access the data

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Blue holes occur at Cockatoo and Molar Reefs, in the Pompey hard line reefs. These two holes are roughly circular in shape, between 240-295 m in diameter, and 30-40 m deep. They are completely (Cockatoo) or partially (Molar) rimmed by profuse living coral and surrounded by lagoonal depths of 5-10 m. The inner slopes of the Cockatoo blue hole are 60-70° down to a depth of 25 m, below which coalescing sediment fans markedly reduce this angle. At the Molar blue hole, slopes are mainly gentler (45°) and sediment fans and terraces occur below 16 m. Distinct biological/sedimentary associations occur in both holes. Seismic refraction studies across the rim of the blue holes show a shallow (8.5-11 m) pre-Holocene surface beneath the rims. The balance of evidence suggests that the blue holes represent collapsed dolines which may have taken more than one low sea-level period to form. The original surface structures have been modified by subaerial solution processes, and subsequent sediment infill and coral growth following the Holocene transgression.

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Issued: 1979

152,-20.25 152,-21.75 150,-21.75 150,-20.25 152,-20.25

151,-21

text: northlimit=-20.25; southlimit=-21.75; westlimit=150.0; eastLimit=152.0

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Journal article (pdf)

uri : https://d28rz98at9flks.cloudfront.net/80991/Jou1979_v4_n2_p099.pdf

Journal article (pdf)

Identifiers
  • global : fae9173a-6fbc-71e4-e044-00144fdd4fa6