An oil seep at Leask Bay, Stewart Island, New Zealand
- 1 January 1982
- journal article
- brief note
- Published by Taylor & Francis in New Zealand Journal of Geology and Geophysics
- Vol. 25 (1) , 115-119
- https://doi.org/10.1080/00288306.1982.10422510
Abstract
Chemical analysis of a recently discovered oil seep on Stewart Island, New Zealand, shows the oil to be natural, mature, and closely comparable with condensate from Kawau-1A, Great South Basin. The seep appears to be associated with a substantial fault cutting the local diorite. Such a fault would act as a migration conduit from the sedimentary sequence offshore. The implication is that hydrocarbons generated deep in the Great South Basin may have migrated westwards into the shallow basin margin; future exploration therefore should look for trapping in such a position.Keywords
This publication has 3 references indexed in Scilit:
- Diorite and associated intrusive and metamorphic rocks between Port William and Paterson Inlet, Stewart Island, and on Ruapuke IslandNew Zealand Journal of Geology and Geophysics, 1978
- Petroleum Formation and OccurrencePublished by Springer Nature ,1978
- Distribution of n-paraffins as a clue to recognition of source bedsGeochimica et Cosmochimica Acta, 1961