ZLV/DIA-003

Stoddart Basalt (Diamond Harbour)

Volcano

"Stoddart Basalt (7.0 – 5.8 Ma) The final phase of Banks Peninsula volcanic activity resulted in 20km³ of sheet flows and lava plugs on the eroding Banks Peninsula volcanoes and the eroded interior of Lyttelton Volcano. Exposures are at; Quail Island, Diamond Harbour to Purau Valley, Ripapa Island and associated peninsula, Kaituna Valley, between Taitapu and Ahuriri, and at Halswell Quarry. At Quail Island, Stoddart Basalt overlies a thick sequence of brown, yellow-brown, matrix to clast supported, pebble to boulder conglomerate, with channelized sandstone layers, which rest unconformably on underlying Kaioruru Hawaiite. Purau Valley to Diamond Harbour exposure is the largest accumulation of Stoddart Basalt, forming the 5km long Diamond Harbour dip slope." Hampton, S.J. : https://ir.canterbury.ac.nz/handle/10092/4117

Within 0.8km, or within sight

Yes (what does this mean?)

Via public road(s): Waipapa Avenue; Whero Avenue; Te Ra Crescent; Marine Drive; Purau Avenue; Rawhiti Street; 4 unnamed road(s)

Via DOC track(s): Mt Herbert W/Way Diamond Harbour Section

Via park(s): Stoddart Point Local Purpose Reserve; Stoddart Point Cemetery; Stoddart Point Historic Reserve; Banks Peninsula Marine Mammal Sanctuary; Recreation Reserve Te Waipapa/Diamond Harbour; Recreation Reserve Stoddart Point; Te Waipapa/Diamond Harbour Recreation Reserve

Diamond Harbour Volcanic Group

51

5.8M years ago to 7.0M years ago

Phanerozoic

Cenozoic

Neogene

Miocene

• [ZLV/LYT-001] Lyttelton Volcano

Canterbury

Christchurch City

Diamond Harbour Volcanic Group

Ngāi Tahu country

NZTM2000: 1579146, 5169878 (alt: 51m)

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