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URENUI AND KIORE FORMATIONS Days 5 and 6

URENUI AND KIORE FORMATIONS Days 5 and 6. Field trip stops. Day 5 & 6: Urenui and Kiore Formations. The purpose of this study is to provide a detailed documentation of the outcropping Urenui and Kiore formations and interpret influences on channel formation and fill.

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URENUI AND KIORE FORMATIONS Days 5 and 6

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  1. URENUI AND KIORE FORMATIONSDays 5 and 6

  2. Field trip stops

  3. Day 5 & 6: Urenui and Kiore Formations The purpose of this study is to provide a detailed documentation of the outcropping Urenui and Kiore formations and interpret influences on channel formation and fill. The majority of Urenui Formation outcrops are bioturbated siltstone with tubular concretions Modified from King et al. (1993)

  4. Outcrops of the Urenui and Kiore formations Lithofacies Map Section modified from King et al.(1993)

  5. Lithofacies Lithofacies 1: Siltstone Lithofacies 2: Sandstone Lithofacies 3: Conglomerate

  6. Stop 10: Gully Rock Quarry Highly long-axis imbricated pebble extrabasinal conglomerate

  7. Stop 12: Wai-iti Granule extrabasinal conglomerate with shell hash and tubular concretion clasts Modified from King et al. (1993)

  8. Stop 11: Urenui Beach Camp Interbedded sandstone and siltstone at the top of the Mimi Channel fill Base of Mimi Channel Modified from King et al. (1993)

  9. Stop 8: Onaero Beach Tubular concretions, bioturbated siltstone, and MTD. Modified from King et al. (1993)

  10. Stop 9: Waiau Stream Chaotic intrabasinal conglomerate with pebble and granule extrabasinal clasts and shell hash Interbedded sandstone and siltstone in the channel fill Modified from King et al. (1993)

  11. Acknowledgements Current SPODDS Students:Anne Bernhardt, Lisa Stright,Zane Jobe, Julie Fosdick, Katie Maier, Jon Rotzien, Larisa Masalimova, Glenn Sharman, Blair Burgreen, Field Assistants: Zane Jobe, Matt Coble, Liz Cassel, Melanie Thompson, Anne Bernhardt Additional Acknowledgements Marty Grove, Gail Mahood (Stanford) Martin Crundwell (GNS) Adam Vonk (Univ. of Waikato; Chevron) Stephanie Nyman (Univ. of Waikato; ExxonMobil) Lorna Strachan (Univ. of Auckland) Peter King, Greg Browne, and Malcolm Arnot Steve Graham and Don Lowe

  12. Urenui – Mount Messenger Contact The MMF and UF have been interpreted as a continuous sequence, but a large erosional contact exists in the coastal section. This erosional contact may correspond to the large MTD interval in the offshore seismic data. Siltstone-dominated Urenui Fm Upper Mount Messenger Facies Normal Fault— Not formation contact Erosional Contact Truncation

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