Late Miocene surface heat flow and thermal modelling of Murchison and southern Taranaki basins, New Zealand
Lee, S., Kamp, P.J.J., Furlong, K.P. (2014). Late Miocene surface heat flow and thermal modelling of Murchison and southern Taranaki basins, New Zealand Ministry of Business, Innovation and Employment, New Zealand, unpublished Petroleum Report PR4882, 29p.
Permanent Research Commons link: https://hdl.handle.net/10289/9998
Numerical thermal modelling of the successions interescted in Fresne-1, North Tasman-1 and Surville-1, southern Taranaki Basin, establishes a Late Miocene surface heat flow value of 77 ± 6 mWm-2 compared with a present-day value of 70 ± 12 mWm-2. This analysis relies upon 2700 m of Late Miocene – Pliocene erosion at Fresne-1, established by seismic reflection mapping. The use of this Late Miocene surface heat flow value in thermal modelling of the succession in Bounty-1 together with apatite fission track data, establishes a 10 Ma timing for the start of uplift and an c. 8 Ma timing for the start of erosion of the 2700 m of the sedimentary section that formerly overlay the top of the Bounty-1 succession. Murchison and southern Taranaki basins had similar timing (Late Miocene) and duration of hydrocarbon maturation prior to the start of Basin inversion.
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