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  • 1
    Series available for loan
    Series available for loan
    Great Barrier Reef Environmental Changes [Elektronische Ressource] : Expedition 325 of the mission-specific drilling platformfrom and to Townsville, Queensland (Australia)Sites M0030-M0058, 11 February-7 April 2010 (2011)
    Tokyo : IODP Management Internat. for the IODP
    Associated volumes
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    Call number: 13/ZSP-947(325)
    In: Proceedings of the integrated ocean drilling program [Elektronische Ressource]
    Type of Medium: Series available for loan
    Pages: 1 DVD
    Series Statement: Proceedings of the integrated ocean drilling program : Expedition reports 325
    URL: http://publications.iodp.org/proceedings/325/325title.htm
    Location: Reading room
    Branch Library: GFZ Library
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  • 2
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    Age determination of carbonate deposits such as Uranium and Thorium concentrations, isotopic activity ratios, ages of corals and coralline algae from Hilo, Hawaii collected in October 2006 (2017)
    PANGAEA
    In:  Supplement to: Puga-Bernabeu, Angel; Webster, Jody M; Braga, Juan-Carlos; Clague, David A; Dutton, Andrea; Eggins, Stephen M; Fallon, Robert D; Jacobsen, Geraldine; Paduan, Jennifer B; Potts, Donald C (2016): Morphology and evolution of drowned carbonate terraces during the last two interglacial cycles, off Hilo, NE Hawaii. Marine Geology, 371, 57-81, https://doi.org/10.1016/j.margeo.2015.10.016
    Details
    Publication Date: 2023-01-21
    Description: The eastern side of Hawaii Island is a rapidly subsiding margin dominated by drowned carbonate platforms. We present detailed bathymetric and backscatter data, remotely operated vehicle and submersible observations, sedimentological and 14C accelerator mass spectrometry and U/Th age data from seven submerged terraces (H7, H2a-d, H1a-b) in water depths between 1100 and 25 m off Hilo, north-eastern Hawaii. The main carbonate deposits on these terraces are coral deposits, rhodolith beds, coralline algal mounds, crusts, pavements and tabular sheets. We identified five previously described sedimentary shallow- to deep-water facies and one new facies type that are consistent with reef drowning on a rapidly subsiding margin. We used palaeobathymetric data derived from the sedimentary facies, age versus depth relationships, and published sea-level curves, to estimate a uniform long-term subsidence rate of 2.80 ± 0.36 m/ky for the eastern side of Hawaii over the last 150 ky. Terrace H7 developed about 380 ka based on data from the western side of the island. Active coral growth on terrace H2d occurred during the Marine Isotope Stage (MIS) 6 to 5 transition, and the terrace drowned during the peak of MIS 5e when sea level rose faster than reefs could grow. Favoured by the gentle platform gradient, reefs established progressively landwards with a backstepping pattern during MIS 5e to form the terraces H2c and H2b 122 ka. Final turn-off of shallow water carbonate production on terraces H2b-d coincided with the relative sea-level rise of the interstadial MIS 5a. Bathymetry and submersible data suggest that carbonate sediments on terraces H2a and H1b were deposited over an antecedent topography of local lava deltas emplaced during rising sea levels at ca. 85 and 65 ka, while terrace H1a established on lava delta substrates of the Mauna Loa volcano ca. 11 ka. We conclude that the initiation, growth and drowning of coral-reef terraces off Hilo differ in some ways from the pattern observed in the submerged terraces in the western side of Hawaii and that the platform evolution off Hilo is more strongly influenced by emplacement of offshore lava flows.
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 3
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    Wave height to water depth ratios for coral reef flats from different coral reef surf zones (2018)
    PANGAEA
    In:  Supplement to: Harris, Daniel L; Power, Hannah E; Kinsela, Michael A; Webster, Jody M; Vila-Concejo, Ana (2018): Variability of depth-limited waves in coral reef surf zones. Estuarine, Coastal and Shelf Science, 211, 36-44, https://doi.org/10.1016/j.ecss.2018.06.010
    Details
    Publication Date: 2023-01-21
    Description: Wave breaking and transformation on coral reef flats is an important process protecting tropical coastlines and regulating the energy regimes of coral reefs. However, the high hydraulic roughness, shallow water, and steep bathymetries of coral reefs may confound common surf zone assumptions, such as a depth-limited and saturated surf zone with a constant wave height to water depth ratio (γ). Here, we examine wave transformation across a coral reef flat, during three separate swell events, on both a time-averaged and a wave-by wave basis. We use the relationship between significant wave height and water depth (γs) to examine the change in surf saturation across the reef flat and compare the measured wave height decay to results of modelled wave energy dissipation in the surf zone. Our results show that γs was not cross-reef constant and varied according to location on the reef flat and local water depth. On average, γs was greatest at the outer reef flat, near the reef crest, and progressively reduced towards the inner reef flat, near the reef lagoon. This was most pronounced in shallow water with large γs values (γs 〉 0.85) at the outer reef flat and small γs values (γs 〈 0.1) at the inner reef flat. This indicates that there is an increase in wave energy dissipation in shallow water, most likely due to increased breaker and bed frictional dissipation. The measured wave energy dissipation across the entire reef flat could, on average, be modelled accurately; however, this required location specific calibration of the free parameters, the wave friction factor (fw) and γ, and further suggests that there is no value for either parameter that is universally applicable to coral reef flats. Despite model calibration inaccuracies were still observed, primarily at the outer reef flat. These inaccuracies reflected the observed cross-reef variation of γ on the reef flat and potentially the limitations of random wave breaker dissipation models in complex surf zones. Our results have implications for the use of wave energy dissipation models in predicting breaker dissipation and subsequent benthic community change on coral reef flats, and uggest that careful consideration of the free parameters in such models (such as fw and γ) is required.
    Type: Dataset
    Format: application/zip, 10.2 kBytes
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  • 4
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    (Table 1) 14C AMS ages from carbonate deposits recovered from the submerged terraces off Hilo, north-eastern Hawaii in October 2006 (2017)
    PANGAEA
    Details
    Publication Date: 2023-01-21
    Keywords: Age, 14C calibrated, CALIB 7.0.2; Age, dated; Age, dated material; Age, dated standard error; Calendar age; Calendar age, maximum/old; Calendar age, minimum/young; Calendar age, standard error; DEPTH, water; Event label; Hawaiian Islands, North Central Pacific; HSDP-1_H1a-01; HSDP-1 (H1a); Laboratory code/label; Latitude of event; Longitude of event; MULT; Multiple investigations; Off-Hilo_H1b-01; Off-Hilo_H1b-02; Off-Hilo_H1b-03; Off-Hilo_H1b-04; Off-Hilo_H1b-05; Off-Hilo_H1b-06; Off-Hilo_H2a-01; Off Hilo (H1b); Off Hilo (H2a); Optional event label; Reference of data; Sample comment; Sample ID
    Type: Dataset
    Format: text/tab-separated-values, 307 data points
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  • 5
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    Nongeniculate coralline algae from IODP Site 310-M0005D (2012)
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Description: Material cored during the Integrated Ocean Drilling Program (IODP) Expedition 310 'Tahiti Sea Level' revealed that the fossil reef systems around Tahiti are composed of two major stratigraphic sequences: (i) a last deglacial sequence; and (ii) an older Pleistocene sequence. The older Pleistocene carbonate sequence is composed of reef deposits associated with volcaniclastic sediments and was preserved in Hole 310-M0005D drilled off Maraa. Within an approximately 70-m-thick older Pleistocene sequence (33.22-101.93 m below seafloor; 92.85-161.56 m below present sealevel) in this hole, 11 depositional units are defined by lithological changes, sedimentological features, and paleontological characteristics and are numbered sequentially from the top of the hole downward (Subunits P1-P11). Paleowater depths inferred from nongeniculate coralline algae, combined with those determined by using corals and larger foraminifers, suggest two major sealevel rises during the deposition of the older Pleistocene sequence. Of these, the second sealevel rise is associated with an intervening sealevel drop. It is likely that the second sealevel rise corresponds to that during Termination II (TII, the penultimate deglaciation, from Marine Isotope Stages 6 to 5e). Therefore, the intervening sealevel drop can be correlated with that known as the 'sealevel reversal' during TII. Because there are limited data on the Pleistocene reef systems in the tropical South Pacific Ocean, this study provides important information about Pleistocene sealevel history, the evolution of coral reef ecosystems, and the responses of coral reefs to Quaternary climate changes.
    Keywords: 310-M0005D; Algae assemblage; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DP Hunter; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Exp310; Hydrolithon breviclavium; Hydrolithon onkodes; Hydrolithon reinboldii; Hydrolithon samoense; Hydrolithon spp.; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Lithophyllum insipidum; Lithophyllum prototypum; Lithophyllum tamiense; Lithoporella melobesioides; Mastophora pacifica; Mesophyllum erubescens; Mesophyllum funafutiense; Neogoniolithon megalocystum; Neogoniolithon myriocarpum; Peyssonneliacean algae; Pneophyllum conicum; Rhodolith; Sample, optional label/labor no; Sample code/label; Sporolithon schmidtii; Sporolithon spp.; TAH-03A-4C; Tahiti, offshore Maraa; Tahiti Sea Level; Thin section estimated
    Type: Dataset
    Format: text/tab-separated-values, 494 data points
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  • 6
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    Age determination of Halimeda bioherm sediment deposits from the Great Barrier Reef, Australia, using 14C AMS from cores collected in 1983 (2022)
    PANGAEA
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    Publication Date: 2023-06-27
    Description: The inter-reef Halimeda bioherms of the northern Great Barrier Reef (GBR) have accumulated up to 25 m of positive relief throughout the Holocene. Covering 〉 6000 km2, the Halimeda bioherms represent a significant contribution to the development of the northeast Australian continental shelf geomorphology, neritic carbonate factory, and sedimentary archive of post-glacial environmental changes. Previously, the chronological record of initiation and development of the Halimeda bioherm carbonate factory was poorly constrained and based on very few age data points. A comprehensive new age dataset is presented, comprising sixty-three AMS radiocarbon measurements of Halimeda and foraminifera grains, mollusc shells and bulk soil from twelve inter-reef sediment cores, and ten previously published Halimeda ages that are newly calibrated. Radiocarbon measurements were undertaken at the ANSTO Centre for Accelerator Science in 2018, 2019 and 2020 from cores collected by the Bureau of Mineral Resources in 1983. Halimeda growth had established by 11,143 +237/-277 cal. yr BP, just ~450 years after the marine transgression commenced and approximately 1000 years earlier than previous inferred estimates. The outer-shelf carbonate factory was initially dominated by benthic foraminifera, then Halimeda was productive for at least 2100 years prior to the turn-on of Holocene coral reefs in the study area. Inter-reef Halimeda bioherm sediments including foraminiferal communities, might record a 〉10,000-year near-continuous geochemical record of northeast Australian Holocene oceanographic and climatic changes, potentially filling spatial and temporal gaps not covered by coral and other marine sediment proxies.
    Keywords: 42/VC83/08; 42/VC83/09; 42/VC83/10; 42/VC83/11; 42/VC83/12; 42/VC83/13; 42/VC83/47; 42/VC83/48; 42/VC83/49; 42/VC83/52; 42/VC83/53; 42/VC83/62; Age, 14C AMS; Age, dated; Age, dated standard deviation; algae; AYR; AYR_83-10; AYR_83-11; AYR_83-12; AYR_83-13; AYR_83-47; AYR_83-48; AYR_83-49; AYR_83-52; AYR_83-53; AYR_83-62; AYR_83-8; AYR_83-9; calculated, 1 sigma; calculated, 2 sigma; Calendar age; Calendar age, maximum/old; Calendar age, median; Calendar age, minimum/young; Calendar age, standard deviation; Calendar age, uncertainty maximum/old; Calendar age, uncertainty minimum/young; Carbon-14, modern; Carbon-14, modern, standard deviation; Carbonate; Comment; DEPTH, sediment/rock; Elevation of event; Event label; Febrina; GBR; Great Barrier Reef; Great Barrier Reef, Australia; Halimeda; Holocene; Laboratory code/label; Latitude of event; Longitude of event; radiocarbon age; reef development; Sample ID; Sample type; SEDCO; Sediment corer; vibracore; δ13C
    Type: Dataset
    Format: text/tab-separated-values, 1160 data points
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  • 7
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    (Table 4) Age analysis from different Holes of IODP Expedition 310 (2012)
    PANGAEA
    In:  Supplement to: Abbey, Elizabeth; Webster, Jody M; Braga, Juan-Carlos; Sugihara, Kaoru; Wallace, Carden; Iryu, Yasufumi; Potts, Donald C; Done, Terry; Camoin, Gilbert; Seard, Claire (2011): Variation in deglacial coralgal assemblages and their paleoenvironmental significance: IODP Expedition 310, “Tahiti Sea Level”. Global and Planetary Change, 76, 1-15, https://doi.org/10.1016/j.gloplacha.2010.11.005
    Details
    Publication Date: 2023-06-27
    Description: Fossil reefs are valuable recorders of paleoenvironmental changes during the last deglaciation, and detailed characterizations of coralgal assemblages can improve understanding of the behavior and impacts of sea-level rise. Drilling in 2005 by the Integrated Ocean Drilling Program (IODP) Expedition 310 explored submerged offshore reefs from three locations around Tahiti, French Polynesia and provides the first look at island-wide variability of coralgal assemblages during deglacial sea-level rise. We present the first detailed examination of coral and coralline algal taxonomy and morphology from two sites on Tahiti (offshore Tiarei and offshore Maraa). Sixteen cores ranging in depth from 122 m to 45 m below sea-level represent reef growth from 16 ka to ca. 8 ka (Camoin, G.F., Iryu, Y., McInroy, D.B. and the IODP Expedition 310 Scientists, 2007. IODP Expedition 310 reconstructs sea level, climatic, and environmental changes in the South Pacific during the last deglaciation. Scientific Drilling, 5: 4-12). Twenty-six coral species, twelve coral genera and twenty-eight coralline algal species were identified from 565 m of core and over 400 thin sections. Based on these data, and in comparison with modern and fossil analogs, seven coral and four algal assemblages have been identified in the deglacial sequences in Tahiti, representing a range of environments from less than 10 m to greater than 20-30 m water depth. Deglacial reef initiation varied at sites based on the available substrate, and early colonizers suggest water conditions at all sites were unfavorable to sensitive corals, such as Acropora, prior to ca. 12.5 ka. Mainly shallowwater (b10-15 m) corals and coralline algal assemblages developed continuously throughout both sites from 16 ka to ca. 8 ka, suggesting that coralgal assemblage variation ismore influenced by factors such as turbidity and water chemistry than sea-level rise alone.
    Keywords: 310-M0007A; 310-M0015A; 310-M0015B; 310-M0016A; 310-M0016B; 310-M0017A; 310-M0018A; AGE; Age, 14C AMS; Age, dated material; Age, error; Age, minimum/young; Age model; Age model calibration; Calcite; Description; DP Hunter; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Exp310; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Sample, optional label/labor no; Sample code/label; TAH-03A-1; TAH-03A-1A; TAH-03A-1B; TAH-03A-1C; TAH-03A-1D; TAH-03A-1E; TAH-03A-3; Tahiti, offshore Maraa; Tahiti Sea Level
    Type: Dataset
    Format: text/tab-separated-values, 133 data points
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  • 8
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    (Table 2) U and Th concentrations, isotopic activity ratios, and ages of corals and coralline algae from Hilo, Hawaii collected in October 2006 (2017)
    PANGAEA
    Details
    Publication Date: 2023-07-05
    Keywords: Age, dated; Age, dated material; Age, dated standard error; Age, error; Age model; DEPTH, water; Event label; Hawaiian Islands, North Central Pacific; HSDP-1_H1a-02; HSDP-1 (H1a)a; Isotopic event; Latitude of event; Longitude of event; MC-ICP-MS Thermo-Finnigan Neptune; MULT; Multiple investigations; Off-Hilo_H2b-01; Off-Hilo_H2c-01; Off-Hilo_H2c-02; Off-Hilo_H2d-01; Off-Hilo_H2d-02; Off-Hilo_H2d-03; Off Hilo (H2b)b; Off Hilo (H2c)b; Off Hilo (H2d)b; Optional event label; Reference of data; Sample comment; Sample ID; Thorium-230/Uranium-238, standard deviation; Thorium-230/Uranium-238 ratio; Thorium-232; Uranium-234/Uranium-238 activity ratio; Uranium-234/Uranium-238 activity ratio, standard deviation; Uranium-238; δ234 Uranium; δ234 Uranium, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 317 data points
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  • 9
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    Isotope analysis, age calculation and calcite concentration from IODP Hole 310-M0005D (2012)
    PANGAEA
    In:  Supplement to: Thomas, Alexander L; Fujita, Kazuhiko; Iryu, Yasufumi; Bard, Edouard; Cabioch, Guy; Camoin, Gilbert; Cole, Julia E; Deschamps, Pierre; Durand, Nicolas; Hamelin, Bruno; Heindel, Katrin; Henderson, Gideon M; Mason, Andrew J; Matsuda, Hiroki; Menabreaz, Lucie; Omori, Akitoshi; Quinn, Terry; Sakai, Saburo; Sato, Tokiyuki; Sugihara, Kaoru; Takahashi, Yasunari; Thouveny, Nicolas; Tudhope, Alexander W; Webster, Jody M; Westphal, Hildegard; Yokoyama, Yusuke (2012): Assessing subsidence rates and paleo water-depths for Tahiti reefs using U-Th chronology of altered corals. Marine Geology, 295-298, 86-94, https://doi.org/10.1016/j.margeo.2011.12.006
    Details
    Publication Date: 2024-01-25
    Description: We present uranium-thoriumchronology for a 102 mcore through a Pleistocene reef at Tahiti (French Polynesia) sampled during IODP Expedition 310 "Tahiti Sea Level". We employ total and partial dissolution procedures on the older coral samples to investigate the diagenetic overprint of the uranium-thoriumsystem. Although alteration of the U-Th system cannot be robustly corrected, diagenetic trends in the U-Th data, combined with sea level and subsidence constraints for the growth of the corals enables the age of critical samples to be constrained to marine isotope stage 9. We use the ages of the corals, together with d18O based sea-level histories, to provide maximum constraints on possible paleo water-depths. These depth constraints are then compared to independent depth estimates based on algal and foraminiferal assemblages, microbioerosion patterns, and sedimentary facies, confirming the accuracy of these paleo water-depth estimates. We also use the fact that corals could not have grown above sea level to place amaximumconstraint on the subsidence rate of Tahiti to be 0.39 m ka**-1,with the most likely rate being close to the existing minimum estimate of 0.25m ka**-1.
    Keywords: 310-M0005D; DP Hunter; DRILL; Drilling/drill rig; Exp310; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; TAH-03A-4C; Tahiti, offshore Maraa; Tahiti Sea Level
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    Format: application/zip, 2 datasets
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  • 10
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    (Table 2) Age calculation and calcite concentration from IODP Hole 310-M0005D (2012)
    PANGAEA
    Details
    Publication Date: 2024-01-25
    Keywords: 310-M0005D; Age, standard deviation; Age model; Calcite; Calcite, standard deviation; Calculated; DEPTH, sediment/rock; DP Hunter; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Exp310; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Residual; Sample, optional label/labor no; Sample code/label; TAH-03A-4C; Tahiti, offshore Maraa; Tahiti Sea Level; Uranium-234/Uranium-238 activity ratio; Uranium-234/Uranium-238 activity ratio, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 176 data points
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