DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Using pollen in turbidites for vegetation reconstructions

Journal Article · · Journal of Quaternary Science
DOI: https://doi.org/10.1002/jqs.3653 · OSTI ID:2472801
ORCiD logo [1];  [1];  [2];  [3];  [4];  [4];  [4];  [5];  [1];  [6];  [7]
  1. Univ. of Auckland (New Zealand)
  2. Massey University (New Zealand)
  3. University of Leeds (United Kingdom)
  4. National Institute of Water and Atmospheric Research (New Zealand)
  5. Univ. of Auckland (New Zealand); Microfossil Research Ltd. (New Zealand)
  6. Victoria Univ. of Wellington (New Zealand)
  7. Univ. of Queensland, Brisbane, QLD (Australia)

Turbidites, deposited by sub-aqueous gravity flows, are common in sedimentary archives worldwide and present a unique challenge and opportunity when reconstructing past vegetation through pollen analysis. When sampling pollen from a sediment core for palaeovegetation records, it is common practice to target background sediments (i.e. pelagic sediment) and avoid sampling turbidites, as they are presumed to portray a misleading picture of past vegetation. This assumption stems from our limited understanding of pollen abundance and distribution through turbidites, meaning that palynologists overlook deposits that could potentially be used to reconstruct past vegetation and climate. We present pollen assemblage and sedimentological data from four recent (<150 years) deep marine turbidite deposits from the Hikurangi Subduction Margin, Aotearoa-New Zealand, with the aim of understanding the abundance and distribution of pollen in fine-grained turbidites. We find that pollen is diluted in the bases of turbidites, but despite this dilution, the proportions of different pollen taxa remain consistent through each turbidite. These results confirm that pollen can be sampled from turbidites for palaeovegetation reconstructions and that sampling the fine-grained upper parts of turbidites will provide the best pollen recovery.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
2472801
Report Number(s):
PNNL-SA--197804
Journal Information:
Journal of Quaternary Science, Journal Name: Journal of Quaternary Science Journal Issue: 7 Vol. 39; ISSN 0267-8179
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (69)

New methods for unmixing sediment grain size data journal December 2015
Sed CT : MATLAB ™ tools for standardized and quantitative processing of sediment core computed tomography ( CT ) data collected using a medical CT scanner journal August 2017
Basis set quality versus size II. Approximate GTO wave functions for second row transition metal atoms journal June 1989
A comparison of pollen extraction methods confirms dense‐media separation as a reliable method of pollen preparation journal August 2016
Biological Invasions in New Zealand book January 2006
Distribution of the Palynomorph Group: Sporomorph Subgroup book January 1995
The 1500-km-long Hikurangi Channel: Trench-axis channel that escapes its trench, crosses a plateau, and feeds a fan drift journal March 1994
Terminal settling velocity and physical properties of pollen grains in still air journal October 2015
Density separation in pollen preparation: How low can you go? journal January 2020
Pollen Distribution in the Northeast Pacific Ocean journal January 1977
Differential transport of spores and pollen: A laboratory study journal October 1990
Channel-axis, overbank and drift sediment waves in the southern Hikurangi Trough, New Zealand journal December 2002
Kaikoura Canyon, New Zealand: active conduit from near-shore sediment zones to trench-axis channel journal December 1999
Source, sea level and circulation effects on the sediment flux to the deep ocean over the past 15 ka off eastern New Zealand journal July 2002
Temporal and spatial complexity in post-glacial sedimentation on the tectonically active, Poverty Bay continental margin of New Zealand journal November 2006
Preconditioning and triggering of offshore slope failures and turbidity currents revealed by most detailed monitoring yet at a fjord-head delta journal September 2016
Highly variable coastal deformation in the 2016 MW7.8 Kaikōura earthquake reflects rupture complexity along a transpressional plate boundary journal September 2017
Morphostructure and evolution of submarine canyons across an active margin: Cook Strait sector of the Hikurangi Margin, New Zealand journal May 2009
Distribution of organic-walled marine and terrestrial palynomorphs in surface sediments, offshore eastern New Zealand journal April 2010
Terrestrial palynology from marine cores as an indicator of environmental change for the Waipaoa Sedimentary System and north-eastern New Zealand journal April 2010
Pollen distribution in marine surface sediments from Chilean Patagonia journal April 2011
Global distribution of large submarine canyons: Geomorphic differences between active and passive continental margins journal July 2011
Postglacial (after 18ka) deep-sea sedimentation along the Hikurangi subduction margin (New Zealand): Characterisation, timing and origin of turbidites journal February 2012
Sedimentology of seismo-turbidites off the Cascadia and northern California active tectonic continental margins, northwest Pacific Ocean journal February 2013
Foraminiferal insights into the complexities of the turbidity currents triggered by the 2016 Kaikoura Earthquake, New Zealand journal September 2022
Characterization of deep-marine channel-levee complex architecture with palynofacies: An outcrop example from the Rosario Formation, Baja California, Mexico journal May 2016
Palynofacies classification of submarine fan depositional environments: Outcrop examples from the Marnoso-Arenacea Formation, Italy journal December 2017
Stratigraphic and spatial distribution of palynomorphs in deep-water turbidites: A meta-data study from the UK central North Sea paleogene journal December 2020
Late Pleistocene history of turbidite sedimentation in a submarine canyon off the northern Great Barrier Reef, Australia journal May 2012
Selective transport of palynomorphs in marine turbiditic deposits: An example from the Ascension-Monterey Canyon system offshore central California journal March 2018
Deposition and preservation of tephra in marine sediments at the active Hikurangi subduction margin journal November 2020
The Late-Quaternary climatic signal recorded in a deep-sea turbiditic levee (Rhône Neofan, Gulf of Lions, NW Mediterranean): palynological constraints journal November 2004
Non-cohesive silt turbidity current flow processes; insights from proximal sandy-silt and silty-sand turbidites, Fiordland, New Zealand journal August 2016
Characterizing the seismogenic zone of a major plate boundary subduction thrust: Hikurangi Margin, New Zealand: HIKURANGI MARGIN SEISMOGENIC ZONE journal October 2009
Deposition of ungraded muds from high-density non-turbulent turbidity currents journal May 1988
Onset of submarine debris flow deposition far from original giant landslide journal November 2007
Calibrating the marine turbidite palaeoseismometer using the 2016 Kaikōura earthquake journal March 2021
The dammed Hikurangi Trough: a channel‐fed trench blocked by subducting seamounts and their wake avalanches (New Zealand–France GeodyNZ Project) journal December 1998
The variability in settling velocities of some pollen and spores journal February 1995
Pollen morphology of the New Zealand species ofDacrydiumSelander,PodocarpusL'Heritier, andDacrycarpus Endlicher(Podocarpaceae) journal March 1981
Pollen morphology ofPhyllocladusL. C. et A. Rich journal July 1981
Pollen morphology of the New Zealand species ofLibocedrusEndlicher (Cupressaceae) andAgathisSalisbury (Araucariaceae) journal July 1981
The impact of human settlement on vegetation and soil stability in Hawke's Bay, New Zealand journal March 1997
Late Holocene forest disturbance in Gisborne, New Zealand: A comparison of terrestrial and marine pollen records journal September 1999
A late Quaternary pollen record from marine core P69, southeastern North Island, New Zealand journal March 2001
Deep‐sea record of Pliocene and Pleistocene terrestrial palynomorphs from offshore eastern New Zealand (ODP Site 1123, Leg 181) journal September 2003
Controls on the architectural evolution of deep-water channel overbank sediment wave fields: insights from the Hikurangi Channel, offshore New Zealand journal October 2021
Trench floor depositional response to glacio-eustatic changes over the last 45 ka, northern Hikurangi subduction margin, New Zealand journal July 2022
Foraminiferal evidence for the provenance and flow history of turbidity currents triggered by the 2016 Kaikōura Earthquake, New Zealand journal July 2022
Functional Morphology of Saccate Pollen in Conifers with Special Reference to Podocarpaceae journal November 1994
Principles of Multivariate Analysis: A User’s Perspective book September 2000
A physical model for the transport and sorting of fine‐grained sediment by turbidity currents journal February 1980
Depositional processes, bedform development and hybrid bed formation in rapidly decelerated cohesive (mud–sand) sediment flows journal June 2011
Subaqueous sediment density flows: Depositional processes and deposit types journal May 2012
Sedimentary architecture of detached deep‐marine canyons: Examples from the East Coast Basin of New Zealand journal December 2018
Earthquakes drive large-scale submarine canyon development and sediment supply to deep-ocean basins journal March 2018
First source-to-sink monitoring shows dense head controls sediment flux and runout in turbidity currents journal May 2022
Complex multifault rupture during the 2016 M w 7.8 Kaikōura earthquake, New Zealand journal March 2017
Hybrid submarine flows comprising turbidity current and cohesive debris flow: Deposits, theoretical and experimental analyses, and generalized models journal April 2013
Applications of X-ray computed tomography in the geosciences journal January 2003
Palynofloras, palaeoenvironmental change and the inception of the Paleocene Eocene Thermal Maximum; the record of the Forties Fan, Sele Formation, North Sea Basin journal September 2022
Surface Rupture of Multiple Crustal Faults in the 2016 Mw 7.8 Kaikōura, New Zealand, Earthquake journal June 2018
A Phase Diagram for Turbulent, Transitional, and Laminar Clay Suspension Flows journal April 2009
Processes That Initiate Turbidity Currents and Their Influence on Turbidites: A Marine Geology Perspective journal June 2009
Testing turbidite conceptual models with the Kaikōura Earthquake co-seismic event bed, Aotearoa New Zealand journal June 2024
Palynology of Recent Orinoco Delta and Shelf Sediments: Reports of the Orinoco Shelf Expedition; Volume 5 journal January 1959
Tree Planting in Canterbury, New Zealand, 1850-1910 journal November 2008
Palynology and the Ecology of the New Zealand Conifers journal November 2017
Building an 18 000-year-long paleo-earthquake record from detailed deep-sea turbidite characterisation in Poverty Bay, New Zealand journal June 2012