Id:
ZLV/DIA-004
Class
Volcano
Description
"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
Radius of Activation Zone
Within 1.2km, or within sight
Public access to AZ
Via public road(s):
Kaituna Pass Road; Kaituna Valley Road
Via DOC track(s):
Kaituna Valley Packhorse Hut Track
Field Name
Diamond Harbour Volcanic Group
Height
131
Date Range
5.8M years ago to 7.0M years ago
Eon
Phanerozoic
Era
Cenozoic
Period
Neogene
Epoch
Miocene
Lies within
Region
District
Geology
Iwi
Ngāi Tahu country
Location
NZTM2000: 1575996, 5159052 (alt: 131m)
Maidenhead
RE66ig
Active?
Yes
Valid for NZART awards?
No
Valid From
1900-01-01
Links:
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