AU-WA
Type of resources
Keywords
Publication year
Scale
Topics
-
Conodont Biostratigraphy of the upper Devonian reef complexes of the Canning Basin, Western Australia
-
No abstract available
-
The Carnarvon shelf at Point Cloates, Western Australia, is characterised by a series of prominent ridges and hundreds of mounds that provide hardground habitat for coral and sponge gardens. The largest ridge is 20 m high, extends 15 km alongshore in 60 m water depth and is interpreted as a drowned fringing reef. To landward, smaller ridges up to 1.5 km long and 16 m high are aligned to the north-northeast and are interpreted as relict aeolian dunes. Mounds are less than 5 m high and may also have a sub-aerial origin. In contrast, the surrounding seafloor is sandy with relatively low densities of epibenthic organisms. The dune ridges are estimated to be Late Pleistocene in age and their preservation is attributed to cementation of calcareous sands to form aeolianite, prior to the postglacial marine transgression. On the outer shelf, sponges grow on isolated low profile ridges at ~85 m and 105 m depth and are also interpreted as partially preserved relict shorelines.
-
Legacy product - no abstract available
-
Legacy product - no abstract available
-
No abstract available
-
22-1/H51-8/1 Contour interval: 20
-
Legacy product - no abstract available
-
H52/B1-55 Contour interval: 10
-
22-2/D51-12/4-1 Vertical scale: 300