North Solitary Island is one of the largest islands found off the
New South Wales
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, nickname =
, image_map = New South Wales in Australia.svg
, map_caption = Location of New South Wales in AustraliaCoordinates:
, subdivision_type = Country
, subdivision_name = Australia
, established_title = Before federation
, es ...
coast and inside the
continental shelf. It is located 40 km north-east of
Coffs Harbour and about 13 km east-south-east of Wooli. The island is divided into two sections by a channel. An
automated lighthouse is found on the northern section of the island.
Around 500 metres north of the island is North West Rock which is home to the fish aggregation site called Fish Soup.
The island is part of the
Solitary Islands Marine Park established 2 January 1998 and managed by the NSW Maritime Parks Authority.
Rocks on North Solitary Island consist of mudstone and a light green brittle sillicaceous
argillite
:''"Argillite" may also refer to Argillite, Kentucky.''
Argillite () is a fine-grained sedimentary rock composed predominantly of indurated clay particles. Argillaceous rocks are basically lithified muds and oozes. They contain variable amounts ...
. The argillite probably formed from volcanic ash falls. The strike of the beds is between 120° and 170° with steep dipping to the west. Some beds show graded bedding. Rocks are frequently folded, and there are also several small faults. Tectonically it is part of the
Coffs Harbour Block which in turn is part of the
New England Orogen.
References
Islands of New South Wales
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