Simmonds Islands
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Location of the Simmonds Islands in New Zealand |
The Simmonds Islands (also Simmonds Island ) are a group of islands in the Far North District of the Northland region on the North Island of New Zealand .
The group of islands called "Simonds Islands" on the topographic maps is located about one kilometer north of Cape Grenville Point in front of Henderson Bay on the northeast coast of the Houhora Peninsula . It consists of the islands of Motu Puruhi Island and Terakautuhaka Island and a few smaller rocks. In other sources, the two islands are viewed as one "Simmonds Island" with two peaks. The east island reaches a height of almost 30 m, the west island almost 45 m. The two islands are in close proximity and are separated by the blowhole Anapuhipuhi blowhole . The entire archipelago is about 420 m long and 300 m wide.
In the 1960s, the Auckland mining inspector HE Rowe and FE Bowen carried out a geological exploration of the islands in preparation for a possible classification as a nature reserve. It was found that the island is traversed by numerous shear zones running in a north-westerly direction, the erosion of which leads to deep, narrow cuts, especially on the north coast. In the middle of the island, such a shear zone forms a narrow strip of sand and rock that is temporarily under water and divides the island into two parts, an east and a west summit. Official maps now classify these parts as separate islands. The rock on the islands consists largely of argillite and basalt .
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- ^ A b FA Bowen: Simmonds Island, Henderson Bay, Northland (N4) " in: FA Bodley (Ed.): New Zealand Journal of Geology and Geophysics Vol. 11, pp. 1199-1202, Dec. 1968 Digitized
Coordinates: 34 ° 45 ′ 20.1 ″ S , 173 ° 9 ′ 20.5 ″ E