Holocene sea-level rise and coral reef growth on a tectonically rising coast, Huon Peninsula, Papua New Guinea

1999 ◽  
Vol 55 (1) ◽  
pp. 51-59 ◽  
Author(s):  
Yoko Ota ◽  
John Chappell
Keyword(s):  
Coral Reef ◽  
Sea Level Rise ◽  
Sea Level ◽  
Papua New Guinea ◽  
New Guinea ◽  
Reef Growth ◽  
Holocene Sea Level

scholarly journals Role of Future Reef Growth on Morphological Response of Coral Reef Islands to Sea-Level Rise

2020 ◽  
Author(s):  
Gerhard Masselink ◽  
Robert McCall ◽  
Edward Beetham ◽  
Paul Simon Kench ◽  
Curt D. Storlazzi
Keyword(s):  
Coral Reef ◽  
Sea Level Rise ◽  
Sea Level ◽  
Reef Growth ◽  
Morphological Response ◽  
Reef Islands

Ecological incumbency impedes stochastic community assembly in Holocene foraminifera from the Huon Peninsula, Papua New Guinea

Paleobiology ◽  
2011 ◽  
Vol 37 (4) ◽  
pp. 670-685 ◽  
Author(s):  
Claire E. Reymond ◽  
Michael Bode ◽  
Willem Renema ◽  
John M. Pandolfi
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Papua New Guinea ◽  
Historical Context ◽  
Neutral Theory ◽  
Stochastic Theory ◽  
New Guinea ◽  
Species Assemblages ◽  
Ecological Communities ◽  
Community Size

Persistence in the structure of ecological communities can be predicted both by deterministic and by stochastic theory. Evaluating ecological patterns against the neutral theory of biodiversity provides an appropriate methodology for differentiating between these alternatives. We traced the history of benthic foraminiferal communities from the Huon Peninsula, Papua New Guinea. From the well-preserved uplifted reef terrace at Bonah River we reconstructed the benthic foraminiferal communities during a 2200-year period (9000–6800 yr B.P.) of reef building during the Holocene transgressive sea-level rise. We found that the similarity of foraminiferal communities was consistently above 60%, even when comparing communities on either side of a massive volcanic eruption that smothered the existing reef system with ash. Similarly, species diversity and rank dominance were unchanged through time. However, similarity dropped dramatically in the final stages of reef growth, when accommodation space was reduced as sea-level rise slowed. We compared the community inertia index (CII) computed from the observed species abundances with that predicted from neutral theory. Despite the differences in foraminiferal community composition in the younger part of the reef sequence, we found an overall greater degree of community inertia with less variance in observed communities than was predicted from neutral theory, regardless of foraminiferal community size or species migration rate. Thus, persistent species assemblages could not be ascribed to neutral predictions. Ecological incumbency of established foraminiferal species likely prevented stochastic increases in both migrant and rare taxa at the Bonah River site. Regardless of the structuring mechanisms, our reconstruction of Holocene foraminiferal assemblages provides historical context for the management and potential restoration of degraded species assemblages.

scholarly journals Role of Future Reef Growth on Morphological Response of Coral Reef Islands to Sea‐Level Rise

2021 ◽  
Vol 126 (2) ◽  
Author(s):  
G. Masselink ◽  
R. McCall ◽  
E. Beetham ◽  
P. Kench ◽  
C. Storlazzi
Keyword(s):  
Coral Reef ◽  
Sea Level Rise ◽  
Sea Level ◽  
Reef Growth ◽  
Morphological Response ◽  
Reef Islands

Post-glacial sea-level rise from a coral record at Huon Peninsula, Papua New Guinea

Nature ◽  
1991 ◽  
Vol 349 (6305) ◽  
pp. 147-149 ◽  
Author(s):  
John Chappell ◽  
Henry Polach
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Papua New Guinea ◽  
New Guinea

High-resolution topography of the uplifting Huon Peninsula (Papua New Guinea) reveals high interstadial sea-levels over the past ~400 ka

2021 ◽  
Author(s):  
Gino de Gelder ◽  
Laurent Husson ◽  
Anne-Morwenn Pastier ◽  
Denovan Chauveau ◽  
David Fernández-Blanco ◽  
...  
Keyword(s):  
Coral Reef ◽  
Sea Level ◽  
Papua New Guinea ◽  
Large Scale ◽  
New Guinea ◽  
Sea Levels ◽  
Level Curves ◽  
The Past ◽  
Reef Models ◽  
Global Mean Sea Level

<p>Quaternary sea-level curves provide crucial insights to constrain tectonic and climatic processes, but require calibration with geological constraints that are particularly scarce for cold periods prior to the last glacial-interglacial cycle. To derive such constraints, we re-visit the Huon Peninsula in Papua New Guinea, which is a classic coral reef terrace (CRT) site that was used for the earliest relative sea-level (RSL) curves. We use digital surface models calculated from 0.5m Pleiades satellite imagery to improve RSL constraints, and unlike previous studies, we find that large-scale tilting of the terrace sequence is generally N-directed. This implies that RSL estimates are several meters higher than previously thought for most highstands over the past ~125 ka. We use the large-scale geometry of the terrace sequence to estimate sea-level highstands up to ~400 ka, and our results suggest that global mean sea-level curves derived from oxygen isotopes consistently underestimate sea-level during the relatively cold Marine Isotope Stages 3, 5a, 5c, 6, 9a and 11a, up to ~10-20 m. We use coral reef models to show that our age interpretation is consistent with the overall terrace sequence morphology, and fits between models and topography improve when adjusting sea-level highstands according to our findings.</p>

Late Holocene sea-level fall and turn-off of reef flat carbonate production: Rethinking bucket fill and coral reef growth models

Geology ◽  
2015 ◽  
Vol 43 (2) ◽  
pp. 175-178 ◽  
Author(s):  
Daniel L. Harris ◽  
Jody M. Webster ◽  
Ana Vila-Concejo ◽  
Quan Hua ◽  
Yusuke Yokoyama ◽  
...  
Keyword(s):  
Coral Reef ◽  
Sea Level ◽  
Late Holocene ◽  
Reef Flat ◽  
Growth Models ◽  
Reef Growth ◽  
Carbonate Production ◽  
Holocene Sea Level

High resolution topography and modeling of the Huon coral reef terrace sequence (Papua New Guinea)

2020 ◽  
Author(s):  
Gino de Gelder ◽  
Anne-Morwenn Pastier ◽  
Denovan Chauveau ◽  
David Fernández-Blanco ◽  
Kevin Pedoja ◽  
...  
Keyword(s):  
Coral Reef ◽  
High Resolution ◽  
Sea Level ◽  
Papua New Guinea ◽  
Large Scale ◽  
Wide Spectrum ◽  
Tectonic Setting ◽  
New Guinea ◽  
Numerical Code ◽  
Tectonic Deformation

<p>Coral reef terraces (CRT) are amongst the most important indicators of Quaternary sea level fluctuations, and are therefore relevant to a wide spectrum of climatic and tectonic studies. The Huon Peninsula in Papua New Guinea accomodates one of the first CRT sequences to be mapped, measured and dated in detail through pioneering studies several decades ago. Those studies were limited by the available techniques to assess the large scale terrace sequence morphology, and thus to constrain spatiotemporal uplift rate variations that are key to determine past relative sea-level (RSL). We re-visit the Huon CRTs with the aim of refining tectonic uplift rates and RSL, using digital surface models calculated from 0.5m Pleiades satellite imagery. This allows us to constrain variations in CRT elevation, and assess tectonic deformation wavelengths in detail. We then use a numerical code for coral reef modeling to reconstruct the sequence morphology and constrain the possible range of RSL over the past few glacial-interglacial cycles. We find that large-scale tilting of the terrace sequence is generally N- instead of NW-directed, which is more compatible with the regional tectonic setting. It also implies changes of several meters for RSL highstand estimates compared to previous studies. We compare our results to other terrace sequences, and discuss the potential of combining high-resolution topography with landscape evolution modeling to constrain RSL.</p>

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