Jenkins, D. G. (1987): Oligocene-Miocene unconformities in North Otago and the Tasman Sea

Leg/Site/Hole:
DSDP 90
DSDP 90 593
Identifier:
1988-010950
georefid
Creator:
Jenkins, D. G.
Open Univ., Dep. Earth Sci., Milton Keynes, United Kingdom
author
Identification:
Oligocene-Miocene unconformities in North Otago and the Tasman Sea
1987
Journal of the Royal Society of New Zealand
Royal Society of New Zealand, Wellington, New Zealand
17
2
177-180
The stratigraphic ranges of key planktonic foraminifera, in Oligo-Miocene sections at Kokoamu Cliff and Earthquakes in North Otago and in the Deep Sea Drilling Project Site 593 in the Tasman Sea, have been correlated with a recently published time-scale. There appear to be two unconformities at Kokoamu Cliff, with durations of c. 2 Ma and c. 5 Ma; two at earthquakes, with c. 2 Ma and c. 6.4 Ma intervals; and at the DSDP Site 593 a possible unconformity with a duration of c. 7 Ma. An alternative postulate, that there are no time-significant unconformities in the North Otago sections, is also considered, and the problem of the Duntroonian Stage discussed.
English
Serial
Coverage:Geographic coordinates:
North:-40.3047
West:167.4047East: 167.4047
South:-40.3047
Stratigraphy; Australasia; Cenozoic; Deep Sea Drilling Project; DSDP Site 593; Duntroonian; IPOD; Kokoamu Cliff; Kokoamu Greensand; Leg 90; McDonald Limestone; Miocene; Neogene; New Zealand; Oligocene; Otago New Zealand; Otekaike; Pacific Ocean; Paleogene; South Island; South Pacific; Southwest Pacific; stratigraphy; Tasman Sea; Tertiary; unconformities; West Pacific;
.