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  • 1
    Online Resource
    Online Resource
    San Diego :Elsevier Science & Technology,
    Keywords: Coral reefs and islands. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (969 pages)
    Edition: 1st ed.
    ISBN: 9780080532479
    Series Statement: Issn Series ; v.Volume 54
    DDC: 551.4/2
    Language: English
    Note: Front Cover -- Geology and Hydrogeology of Carbonate Islands -- Copyright Page -- Contents -- List of Case Studies -- Preface -- List of Contributors -- CHAPTER I . INTRODUCTION: VARIETIES OF CARBONATE ISLANDS AND HISTORICAL PERSPECTIVE -- CHAPTER 2. GEOLOGY AND HYDROGEOLOGY OF BERMUDA -- CHAPTER 3A. GEOLOGY OF THE BAHAMAS -- CHAPTER 3B. GEOLOGY OF THE BAHAMAS: ARCHITECTURE OF BAHAMIAN ISLANDS -- CHAPTER 3C. GEOLOGY OF THE BAHAMAS: SUBSURFACE GEOLOGY OF THE BAHAMAS BANKS -- CHAPTER 4. HYDROGEOLOGY OF THE BAHAMIAN ARCHIPELAGO -- CHAPTER 5. GEOLOGY AND HYDROGEOLOGY OF THE FLORIDA KEYS -- CHAPTER 6. GEOLOGY OF MUD ISLANDS IN FLORIDA BAY -- CHAPTER 7. GEOLOGY OF COASTAL ISLANDS, NORTHEASTERN YUCATAN PENINSULA -- CHAPTER 8. GEOLOGY AND HYDROGEOLOGY OF THE CAYMAN ISLANDS -- CHAPTER 9. GEOLOGY OF ISLA DE MONA, PUERTO RICO -- CHAPTER 10. GEOLOGY AND HYDROGEOLOGY OF ST. CROIX, VIRGIN ISLANDS -- CHAPTER 11. GEOLOGY AND HYDROGEOLOGY OF BARBADOS -- CHAPTER 12. GEOLOGY OF SELECTED ISLANDS OF THE PITCAIRN GROUP, SOUTHERN POLYNESIA -- CHAPTER 13. GEOLOGY AND HYDROGEOLOGY OF MURUROA AND FANGATAUFA, FRENCH POLYNESIA -- CHAPTER 14. GEOLOGY OF MAKATEA ISLAND, TUAMOTU ARCHIPELAGO, FRENCH POLYNESIA -- CHAPTER 15. GEOMORPHOLOGY AND HYDROGEOLOGY OF SELECTED ISLANDS OF FRENCH POLYNESIA: TIKEHAU (ATOLL) AND TAHITI (BARRIER REEF) -- CHAPTER 16. GEOLOGY AND HYDROGEOLOGY OF THE COOK ISLANDS -- CHAPTER 17. GEOLOGY AND HYDROGEOLOGY OF NIUE -- CHAPTER 18. HYDROGEOLOGY OF CARBONATE ISLANDS OF THE KINGDOM OF TONGA -- CHAPTER 19. GEOLOGY AND HYDROGEOLOGY OF TARAWA AND CHRISTMAS ISLAND, KIRIBATI -- CHAPTER 20. HYDROGEOLOGY OF THE MARSHALL ISLANDS -- CHAPTER 21. GEOLOGY OF ANEWETAK ATOLL, REPUBLIC OF THE MARSHALL ISLANDS -- CHAPTER 22. HYDROGEOLOGY OF ENEWETAK ATOLL -- CHAPTER 23. HYDROGEOLOGY OF SELECTED ISLANDS OF THE FEDERATED STATES OF MICRONESIA. , CHAPTER 24. GEOLOGY AND HYDROGEOLOGY OF NAURU ISLAND -- CHAPTER 25. HYDROGEOLOGY OF NORTHERN GUAM -- CHAPTER 26. HYDROGEOLOGY OF SELECTED ISLANDS OF FIJI -- CHAPTER 27. GEOLOGY AND HYDROGEOLOGY OF ROTTNEST ISLAND, WESTERN AUSTRALIA -- CHAPTER 28. GEOLOGY OF THE HOUTMAN ABROLHOS ISLANDS -- CHAPTER 29. GEOLOGY OF REEF ISLANDS OF THE GREAT BARRIER REEF, AUSTRALIA -- CHAPTER 30. HYDROGEOLOGY OF HERON ISLAND, GREAT BARRIER REEF, AUSTRALIA -- CHAPTER 31. GEOLOGY AND HYDROGEOLOGY OF THE COCOS (KEELING) ISLANDS -- CHAPTER 32. HYDROGEOLOGY OF DIEGO GARCIA -- Subject Index.
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  • 2
    Online Resource
    Online Resource
    Oxford :Elsevier Science & Technology,
    Keywords: Coral reefs and islands. ; Carbonate rocks. ; Hydrogeology. ; Electronic books.
    Description / Table of Contents: This book on geology and hydrogeology of carbonate islands is volume 54 in the Developments in Sedimentology series.
    Type of Medium: Online Resource
    Pages: 1 online resource (967 pages)
    Edition: 1st ed.
    ISBN: 9780080554662
    Series Statement: Issn Series ; v.Volume 54
    DDC: 551.4/2
    Language: English
    Note: Front Cover -- Geology and Hydrogeology of Carbonate Islands: Developments in Sedimentology -- Copyright Page -- CONTENTS -- List of Case Studies -- Preface -- List of Contributors -- CHAPTER 1. INTRODUCTION: VARIETIES OF CARBONATE ISLANDS AND HISTORICAL PERSPECTIVE -- CHAPTER 2. GEOLOGY AND HYDROGEOLOGY OF BERMUDA -- CHAPTER 3A. GEOLOGY OF THE BAHAMAS -- CHAPTER 3B. GEOLOGY OF THE BAHAMAS: ARCHITECTURE OF BAHAMIAN ISLANDS -- CHAPTER 3C. GEOLOGY OF THE BAHAMAS: SUBSURFACE GEOLOGY OF THE BAHAMAS BANKS -- CHAPTER 4. HYDROGEOLOGY OF THE BAHAMIAN ARCHIPELAGO -- CHAPTER 5. GEOLOGY AND HYDROGEOLOGY OF THE FLORIDA KEYS -- CHAPTER 6. GEOLOGY OF MUD ISLANDS IN FLORIDA BAY -- CHAPTER 7. GEOLOGY OF COASTAL ISLANDS, NORTHEASTERN YUCATAN PENINSULA -- CHAPTER 8. GEOLOGY AND HYDROGEOLOGY OF THE CAYMAN ISLANDS -- CHAPTER 9. GEOLOGY OF ISLA DE MONA, PUERTO RICO -- CHAPTER 10. GEOLOGY AND HYDROGEOLOGY OF ST. CROIX, VIRGIN ISLANDS -- CHAPTER 11. GEOLOGY AND HYDROGEOLOGY OF BARBADOS -- CHAPTER 12. GEOLOGY OF SELECTED ISLANDS OF THE PITCAIRN GROUP, SOUTHERN POLYNESIA -- CHAPTER 13. GEOLOGY AND HYDROGEOLOGY OF MURUROA AND FANGATAUFA, FRENCH POLYNESIA -- CHAPTER 14. GEOLOGY OF MAKATEA ISLAND, TUAMOTU ARCHIPELAGO, FRENCH POLYNESIA -- CHAPTER 15. GEOMORPHOLOGY AND HYDROGEOLOGY OF SELECTED ISLANDS OF FRENCH POLYNESIA: TIKEHAU (ATOLL) AND TAHITI (BARRIER REEF) -- CHAPTER 16. GEOLOGY AND HYDROGEOLOGY OF THE COOK ISLANDS -- CHAPTER 17. GEOLOGY AND HYDROGEOLOGY OF NIUE -- CHAPTER 18. HYDROGEOLOGY OF CARBONATE OF THE KINGDOM OF TONGA -- CHAPTER 19. GEOLOGY AND HYDROGEOLOGY OF TARAWA AND CHRISTMAS ISLAND, KIRIBATI -- CHAPTER 20. HYDROGEOLOGY OF THE MARSHALL ISLANDS -- CHAPTER 21. GEOLOGY OF ANEWETAK ATOLL, REPUBLIC OF THE MARSHALL ISLANDS -- CHAPTER 22. HYDROGEOLOGY OF ENEWETAK ATOLL -- CHAPTER 23. HYDROGEOLOGY OF SELECTED ISLANDS OF THE FEDERATED STATES OF MICRONESIA. , CHAPTER 24. GEOLOGY AND HYDROGEOLOGY OF NAURU ISLAND -- CHAPTER 25. HYDROGEOLOGY OF NORTHERN GUAM -- CHAPTER 26. HYDROGEOLOGY OF CARBONATE ISLANDS OF -- CHAPTER 27. GEOLOGY AND HYDROGEOLOGY OF ROTTNEST ISLAND, WESTERN AUSTRALIA -- CHAPTER 28. GEOLOGY OF THE HOUTMAN ABROLHOS ISLANDS -- CHAPTER 29. GEOLOGY OF REEF ISLANDS OF THE GREAT BARRIER REEF, AUSTRALIA -- CHAPTER 30. HYDROGEOLOGY OF HERON ISLAND, GREAT BARRIER REEF, AUSTRALIA -- CHAPTER 31. GEOLOGY AND HYDROGEOLOGY OF THE COCOS (KEELING) ISLANDS -- CHAPTER 32. HYDROGEOLOGY OF DIEGO GARCIA -- Subject Index.
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  • 3
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Hurricane activity in the North Atlantic Ocean has increased significantly since 1995 (refs 1, 2). This trend has been attributed to both anthropogenically induced climate change and natural variability, but the primary cause remains uncertain. Changes in the frequency and ...
    Type of Medium: Electronic Resource
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  • 4
    Publication Date: 2015-10-21
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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  • 5
    Publication Date: 2022-05-25
    Description: Author Posting. © American Geophysical Union, 2013. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geochemistry, Geophysics, Geosystems 14 (2013): 3730–3750, doi:10.1002/ggge.20230.
    Description: The Sr/Ca ratio of coral aragonite is used to reconstruct past sea surface temperature (SST). Twenty-one laboratories took part in an interlaboratory study of coral Sr/Ca measurements. Results show interlaboratory bias can be significant, and in the extreme case could result in a range in SST estimates of 7°C. However, most of the data fall within a narrower range and the Porites coral reference material JCp-1 is now characterized well enough to have a certified Sr/Ca value of 8.838 mmol/mol with an expanded uncertainty of 0.089 mmol/mol following International Association of Geoanalysts (IAG) guidelines. This uncertainty, at the 95% confidence level, equates to 1.5°C for SST estimates using Porites, so is approaching fitness for purpose. The comparable median within laboratory error is 〈0.5°C. This difference in uncertainties illustrates the interlaboratory bias component that should be reduced through the use of reference materials like the JCp-1. There are many potential sources contributing to biases in comparative methods but traces of Sr in Ca standards and uncertainties in reference solution composition can account for half of the combined uncertainty. Consensus values that fulfil the requirements to be certified values were also obtained for Mg/Ca in JCp-1 and for Sr/Ca and Mg/Ca ratios in the JCt-1 giant clam reference material. Reference values with variable fitness for purpose have also been obtained for Li/Ca, B/Ca, Ba/Ca, and U/Ca in both reference materials. In future, studies reporting coral element/Ca data should also report the average value obtained for a reference material such as the JCp-1.
    Description: E.C.H. (MARUM Fellowship) and T.F. were supported by the DFG-Research Center/Excellence Cluster ‘‘The Ocean in the Earth System,’’ University of Bremen. HVM was supported by an AINSE Research Fellowship.
    Description: 2014-03-23
    Keywords: Coral Sr/Ca ratios
    Repository Name: Woods Hole Open Access Server
    Type: Article
    Format: application/pdf
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  • 6
    Publication Date: 2021-03-29
    Description: One hundred eighty U–Th data, including 23 isochrons on 24 pristine modern and Holocene corals and 33 seawater samples, were analyzed using sector-field mass spectrometry to understand the variability of initial 230Th/232Th (230Th/232Th0). This dataset allows us to further assess the accuracy and precision of coral 230Th dating method. By applying quality control, including careful sampling and subsampling protocols and the use of contamination-free storage and workbench spaces, the resulting low procedural blanks give an equivalent uncertainty in age of only ±0.2–0.3 yr for 1–2 g of coral sample. Using site-specific 230Th/232Th0 values or isochron techniques, our study demonstrates that corals with an age less than 100 yrs can be 230Th-dated with precisions of ±1 yr. Six living subtidal coral samples were collected from two continental shelf sites, Nanwan off southern Taiwan in the western Pacific and Son Tra off central Vietnam in the South China Sea; one coral core was drilled from an open-ocean site, Santo Island, Vanuatu, in the western tropical Pacific; and modern and fossil intertidal coral slabs, 17 in total, were cut from six sites around the islands of Simeulue, Lago, North Pagai and South Pagai of Sumatra in the eastern Indian Ocean. The results indicate that the main source of thorium is the dissolved phase of seawater, with variation of 230Th/232Th0 depending on local hydrology. With intense input of terrestrial material, low 230Th/232Th0 atomic ratios of 4.9 × 10−6 and 3.2 × 10−6 with a 10% variation are observed in Nanwan and Son Tra, respectively. At the Santo site, we find a value of 5.6 × 10−6 at 4 horizons and one high value of 24 × 10−6 in a sample from AD 1974.6 ± 0.5, likely due to the upwelling of cold water during a La Niña event between AD 1973 and 1976. The natural dynamics of 230Th/232Th0 recorded in the intertidal corals at sites in the Sumatran islands are complicated so that this value varies significantly from 3.0 to 9.4 × 10−6. Three of the 141 modern coral 230Th ages differ from their true ages by −23 to +4, indicating the presence of detrital material with anomalous 230Th/232Th values. Duplicate measurement of coeval subsamples is therefore recommended to verify the age accuracy. This improved high precision coral 230Th dating method raises the prospects of refining the age models for band-counted and tracer-tuned chronologies and of advancing coral paleoclimate research.
    Type: Article , PeerReviewed
    Format: text
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  • 7
    Publication Date: 2024-03-22
    Description: The Sr/Ca ratio of coral aragonite is used to reconstruct past sea surface temperature (SST). Twentyone laboratories took part in an interlaboratory study of coral Sr/Ca measurements. Results show interlaboratory bias can be significant, and in the extreme case could result in a range in SST estimates of 7°C. However, most of the data fall within a narrower range and the Porites coral reference material JCp- 1 is now characterized well enough to have a certified Sr/Ca value of 8.838 mmol/mol with an expanded uncertainty of 0.089 mmol/mol following International Association of Geoanalysts (IAG) guidelines. This uncertainty, at the 95% confidence level, equates to 1.5°C for SST estimates using Porites, so is approaching fitness for purpose. The comparable median within laboratory error is 〈0.5°C. This difference in uncertainties illustrates the interlaboratory bias component that should be reduced through the use of reference materials like the JCp-1. There are many potential sources contributing to biases in comparative methods but traces of Sr in Ca standards and uncertainties in reference solution composition can account for half of the combined uncertainty. Consensus values that fulfil the requirements to be certified values were also obtained for Mg/Ca in JCp-1 and for Sr/Ca and Mg/Ca ratios in the JCt-1 giant clam reference material. Reference values with variable fitness for purpose have also been obtained for Li/Ca, B/Ca, Ba/Ca, and U/Ca in both reference materials. In future, studies reporting coral element/Ca data should also report the average value obtained for a reference material such as the JCp-1.
    Type: Article , PeerReviewed
    Format: text
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