Mount Manaia

Mount Manaia
Mount Manaia
	Mt Manaia viewed from coastal Taurikura
Highest point
Elevation	420 m (1,380 ft)
Isolation	6.67 km (4.14 mi)
Coordinates	35°49.05′S 174°30.58′E / 35.81750°S 174.50967°E
Naming
Native name	Manaia (Māori)
Geography
	Mount Manaia Whangarei District, Northland Region, New Zealand
Climbing
Easiest route	Mount Manaia Track

Mount Manaia is a dominant landmark approximately 30 kilometres southeast of Whangārei city on the Whangārei Heads peninsula.

Standing 420 metres, the summit offers outstanding views of the Marsden Point Oil Refinery, Bream Bay and the Hauraki Gulf to the south, Whangārei Harbour to the west and the Poor Knights Islands and Northland coast to the north.

Surface volcanics centered upon Mount Manaia with andesite in red shading and dacite in purple shading. The approximate Taurikura volcanic complex is in white shading. Clicking on the map enlarges it, and enables panning and mouseover of volcanic feature name/wikilink and ages before present. The key to the other volcanics that are shown with panning is basalt - brown, monogenic basalts - dark brown, undifferentiated basalts of the Tangihua Complex in Northland Allochthon - light brown, arc basalts - deep orange brown, arc ring basalts -orange brown, rhyolite - violet, basaltic andesite`- light red) , ignimbrite (lighter shades of violet), and plutonic - gray.

Mt Manaia - along with Mt Lion, Bream Head and the Hen and Chicken Islands, are the scattered remnants of andesite, volcanic intusions that erupted with force 16 to 22 million years ago during the early Miocene.^[1] They are part of a 50 km² (19 sq mi) stratovolcano that extended to the Hen and Chickens.^[2] Its jagged outline is similar to that of its neighbours and other volcanic outcrops in Northland that erupted in a similar period.

Today blanketed by native bush, Manaia's jagged peaks and steep bluffs are protected within a Department of Conservation reserve which features a well-maintained 1½ hour track to the summit.

Photo gallery[edit]

Mt Manaia viewed from Manaia Baptist Camp at Taurikura
Manaia Ridge Scenic Reserve
Mt Lion and Taurikura viewed from the flanks of Mt Manaia
Whangārei Harbour viewed from the summit
Looking down at the Marsden Point Oil Refinery from across Whangārei Harbour
Bream Head and the Bream Islands viewed from atop the summit
The Bream Islands with Great Barrier Island in the distance viewed from Mt Manaia

References[edit]

^ Booden, Mathijs A.; Smith, Ian E.M.; Black, Philippa M.; Mauk, Jeffrey L. (2011). "Geochemistry of the Early Miocene volcanic succession of Northland, New Zealand, and implications for the evolution of subduction in the Southwest Pacific". Journal of Volcanology and Geothermal Research. 199 (1–2): 25–37. doi:10.1016/j.jvolgeores.2010.10.006. ISSN 0377-0273.
^ Hayward, Bruce; Smith, Ian (2002). "Field Trip 3-5: Introduction to Whangarei geology" (PDF). In Smith, Vicki; Grenfell, Hugh (eds.). Field Trip Guides, GSNZ Annual Conference "Northland 2002". Geological Society of NZ Miscellaneous Publication 112B. Archived from the original (PDF) on 22 June 2006. Retrieved 12 December 2022.

Sources[edit]

External links[edit]

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[Booden2011-1] Booden, Mathijs A.; Smith, Ian E.M.; Black, Philippa M.; Mauk, Jeffrey L. (2011). "Geochemistry of the Early Miocene volcanic succession of Northland, New Zealand, and implications for the evolution of subduction in the Southwest Pacific". Journal of Volcanology and Geothermal Research. 199 (1–2): 25–37. doi:10.1016/j.jvolgeores.2010.10.006. ISSN 0377-0273.

[Field_Trip_3-5-2] Hayward, Bruce; Smith, Ian (2002). "Field Trip 3-5: Introduction to Whangarei geology" (PDF). In Smith, Vicki; Grenfell, Hugh (eds.). Field Trip Guides, GSNZ Annual Conference "Northland 2002". Geological Society of NZ Miscellaneous Publication 112B. Archived from the original (PDF) on 22 June 2006. Retrieved 12 December 2022.

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