The North-Fiji Basin [2] [3] or the North-Fiji Plateau [2] [3] is a back [4] hollow in the south-western part of the Pacific Ocean .
| North Fijian Basin | |
|---|---|
| Specifications | |
| Length | 2000 [1] km |
| Width | 3000 [1] km |
| Depth | ≈ 2500–3500 m [1] |
| Location | |
| Ocean | Pacific Ocean |
| Location | between the archipelagoes of the New Hebrides and Fiji |
Title
There are the following names: North Fiji hollow [4] [5] [6] [7] [2] , North Fiji plateau [1] [2] , North Fiji hollow [1] [8] , Fiji plateau [7 ] , Fijian Plateau [4] , North Fijian Basin [4] , North Fijian Backspot Basin [4] .
Description
Located north of the South Fijian Basin , between the New Hebrides and Fiji archipelagoes, it is separated from the Melanesian Basin in the north by the Vityaz Trench [5] [6] . In the east, south of Fiji, the North Fijian Basin is connected to the Lau Basin with a similar structure, and in the northeast it gradually passes to the Central Pacific Basin in the West Pacific Transit Zone , where the conventional boundary between them are separate mountains, two of which form the islands of Nurakita and Uoyalis [1] .
In form, the North Fijian Basin resembles an oval stretched in a northeast direction, with dimensions of 2000 km per 3000 km [8] .
The North Fijian Basin is characterized by an intense heat flux from the bottom, which is caused by the small thickness of the Earth's crust in this region of the Pacific Ocean [6] . The average depth of the basin is in the range from 2500 to 3500 m. The bottom is characterized by a very strong dissection, which is most pronounced in its eastern part. The relief is formed by a system of multidirectional short ridges and gutters with hilly and flat zones. The sedimentary cover is discontinuous and thin, the greatest thickness, up to 500 m, it reaches only near the New Herbids. [1] .
In terms of tectonic nature, the North Fijian Basin has much in common with the Commander basin [8] .
According to seismic studies, the earth's crust in the basin is similar in structure to the oceanic one. It stands out as a place of active formation of the rear artery bark [7] .
Notes
- ↑ 1 2 3 4 5 6 7 8 Vasilyev B. I. Geological structure and origin of the Pacific Ocean. - Dal'nauka, 2009. - 560 p. - 300 copies - ISBN 978-5-8044-1006-4 .
- ↑ 1 2 3 4 5 North Fijian Basin // Dictionary of geographical names of forms of underwater relief / G.V. Agapova, N.V. Vinogradova, I.P. Kashnikova; by ed. G. V. Agapova. - M .: GIN RAS , 1993. - P. 117. - ISBN 5-201-12010-5 .
- ↑ 1 2 3 Levashov E. A. World toponymy. Adjectives from place names. Dictionary reference. - St. Petersburg, 2003. - p. 468. - 531 p. - ISBN 5860072929 .
- ↑ 1 2 3 4 5 6 Petrological provinces of the Pacific Ocean. - Science, 1996. - ISBN 5-02-002409-0 .
- ↑ 1 2 3 Atlas of the oceans. Pacific Ocean. - St. Petersburg: Main Directorate of Geodesy and Cartography at the USSR Ministry of Defense, 1974. - 302 p.
- ↑ 1 2 3 4 Aksenov A. A., Belousov I. M. Chapter VI. North Fijian Basin // Mysteries of Oceania. - Moscow: Thought, 1975. - 156 p.
- ↑ 1 2 3 4 V. I. Shuldiner, S. V. Vysotsky, A. I. Hanchuk. The foundation of Pacific active margins. - Science, 1987. - 206 p.
- ↑ 1 2 3 4 Actual problems of tectonics of the oceans and continents. - Moscow: Science, 1987. - 215 p.