Waitemata Group sandstones form the cliffs of Takapuna Beach
Type
Geological group
Underlies
Waitakere Group
Overlies
Waipapa Terrane and Te Kuiti Group
Area
130 km × 60 km (81 mi × 37 mi)
Thickness
up to 2,000 m (6,600 ft)
Lithology
Primary
Sandstone, siltstone, mudstone
Other
Conglomerate, limestone, volcanoclastic sediments
Location
Country
New Zealand
Type section
Named for
Waitemata Harbour
Flame structures in Waitemata Group sandstone, at Long Bay.
The Waitemata Group is an Early Miocene geologic group that is exposed in and around the Auckland Region of New Zealand, between the Whangarei Harbour in the North and the Raglan Harbour in the South.[1] The Group is predominantly composed of deep water sandstone and mudstone (flysch). The sandstone dominated units form the cliffs around the Waitemata Harbour and rare more resistant conglomerates underlie some of Auckland's prominent ridges.
^Ballance, P.F. (2011). "Stratigraphy and bibliography of the Waitemata Group of Auckland, New Zealand". New Zealand Journal of Geology and Geophysics. 19 (6): 897–932. doi:10.1080/00288306.1976.10420746. ISSN 0028-8306.
The WaitemataGroup is an Early Miocene geologic group that is exposed in and around the Auckland Region of New Zealand, between the Whangarei Harbour...
through the Miocene marine sediments of the WaitemataGroup, drowned and became a tidal estuary, the Waitematā Harbour. A similar process occurred on the...
northern volcanoes located over early Miocene sedimentary deposits of the WaitematāGroup of rocks and the southern volcanoes over post Miocene sediments. A...
Auckland Region was subsided 2-3,000 metres to the sea floor. The WaitemataGroup sedimentary rock found in the Northland and Auckland Regions is material...
Castor Bay and Milford. The East Coast Bays are primarily formed from WaitemataGroup sandstone, which accumulated on the sea floor during the early Miocene...
Waipapa Terrane greywacke overlain by sediments of the early Miocene WaitemataGroup, the latter of which is divided between the basal, shallow marine Cape...
Fullers Group Limited, trading as Fullers360, is a ferry and tourism company in Auckland, New Zealand. It operates in the Hauraki Gulf and Waitematā Harbour...
rank (e.g. WaitematāGroup). This ranking system starts with individual 'beds' of rock which can be grouped into 'members', members are grouped into 'formations'...
New Zealand. The suburb is an isthmus between Shoal Bay, arm of the Waitematā Harbour, and the Hauraki Gulf. Lake Pupuke, a volcanic maar and one of...
is called Tipau Point. The land at Torbay is primarily made up of WaitemataGroup sandstone, which formed during the Miocene approximately 16 to 22 million...
Ōrākei, Ōtara-Papatoetoe, Puketāpapa, Upper Harbour, Waitākere Ranges, Waitematā and Whau. Rural townships and localities outside of the metropolitan urban...
coordinated by Auckland Transport (AT) under the AT and AT Metro brands. Waitematā railway station is the main transport hub. Until the 1950s, Auckland was...
surrounded further out by mostly suburban areas; it is bounded on the North by Waitematā Harbour, east by Parnell, southeast by Grafton, south by Mount Eden, southwest...
narrow isthmus between the Manukau Harbour on the Tasman Sea and the Waitematā Harbour on the Pacific Ocean. Auckland is one of the few cities in the...
Waitākere volcanic soil and WaitemataGroup sedimentary rock. The north-eastern lowlands in Oratia forms a part of the Waitematā lowland forests ecological...
on the south-east-facing peninsula forming the northern side of the Waitematā Harbour. Mairangi Bay came under the local governance of the North Shore...
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