# Caribbean Sclerosponge Oxygen Isotope and Sr/Ca Data #----------------------------------------------------------------------- # World Data Center for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # NOTE: Please cite Publication, and Online_Resource and date accessed when using these data. # If there is no publication information, please cite Investigators, Title, and Online_Resource and date accessed. # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/1878 # # Original_Source_URL: http://www1.ncdc.noaa.gov/pub/data/paleo/coral/caribbean/pedro_bank_2003.txt # # Description/Documentation lines begin with # # Data lines have no # # # Archive: Corals and Sclerosponges #-------------------- # Contribution_Date # Date: 2003-10-01 #-------------------- # Title # Study_Name: Montego Bay, Pedro Bank - Sclerosponge Oxygen Isotope and Sr/Ca Data #-------------------- # Investigators # Investigators: Haase-Schramm, A.; Böhm, F.; Eisenhauer, A.; Dullo, W.C.; Joachimski, M.M.; Hansen, B.; Reitner, J. #-------------------- # Description_and_Notes # Description: Sr/Ca and oxygen isotope values (VPDB) were measured on aragonitic skeletons of sclerosponges Ceratoporella nicholsoni. Sr/Ca values were measured with ICP-AES with external reproducibility of 0.6% (2sem). External precision for d18O is 0.07 permil (2sd). Age model is based on U/Th dating with average error of 3%. sample Pb19: Pedro Bank, 17�32�N, 78�57�W ; 125 mbsl #-------------------- # Publication # Authors: Haase-Schramm, A.; Böhm, F.; Eisenhauer, A.; Dullo, W.C.; Joachimski, M.M.; Hansen, B.; Reitner, J. # Published_Date_or_Year: 2003 # Published_Title: Sr/Ca ratios and oxygen isotopes from sclerosponges: Temperature history of the Caribbean mixed layer and thermocline during the Little Ice Age # Journal_Name: Paleoceanography # Volume: 18 # Edition: 3 # Issue: # Pages: 1073 # DOI: 10.1029/2002PA000830 # Online_Resource: # Full_Citation: Haase-Schramm, A., F. B�hm, A. Eisenhauer, W.-C. Dullo, M.M. Joachimski, B. Hansen, and J. Reitner, 2003, Sr/Ca ratios and oxygen isotopes from sclerosponges: Temperature history of the Caribbean mixed layer and thermocline during the Little Ice Age, Paleoceanography, Vol. 18, No. 3, 1073, doi:10.1029/2002PA000830. # Abstract: We investigate aragonitic skeletons of the Caribbean sclerosponge Ceratoporella nicholsoni from Jamaica, 20 m below sea level (mbsl), and Pedro Bank, 125 mbsl. We use d18O and Sr/Ca ratios as temperature proxies to reconstruct the Caribbean mixed layer and thermocline temperature history since 1400 A.D. with a decadal time resolution. Our age models are based on U/Th dating and locating of the radiocarbon bomb spike. The modern temperature difference between the two sites is used to tentatively calibrate the C. nicholsoni Sr/Ca thermometer. The resulting calibration points to a temperature sensitivity of Sr/Ca in C. nicholsoni aragonite of about -0.1 mmol/mol/K. Our Sr/Ca records reveal a pronounced warming from the early 19th to the late 20th century, both at 20 and 125 mbsl. Two temperature minima in the shallow water record during the late 17th and early 19th century correspond to the Maunder and Dalton sunspot minima, respectively. Another major cooling occurred in the late 16th century and is not correlatable with a sunspot minimum. The temperature contrast between the two sites decreased from the 14th century to a minimum in the late 17th century and subsequently increased to modern values in the early 19th century. This is interpreted as a long-term deepening and subsequent shoaling of the Caribbean thermocline. The major trends of the Sr/Ca records are reproduced in both specimens but hardly reflected in the d18O records. #------------------ # Funding_Agency # Funding_Agency_Name: # Grant: #------------------ # Site_Information # Site_Name: Pedro Bank, Jamaica # Location: Ocean>Atlantic Ocean>North Atlantic Ocean>Caribbean Sea>Jamaica # Country: Jamaica # Northernmost_Latitude: 17.53 # Southernmost_Latitude: 17.53 # Easternmost_Longitude: -77.97 # Westernmost_Longitude: -77.97 # Elevation: -125 m #------------------ # Data_Collection # Collection_Name: 03jama01a # Earliest_Year: 1389 # Most_Recent_Year: 1992 # Time_Unit: AD # Core_Length: # Notes: Core name- Sclerosponge Pb19 #------------------ # Species # Species_Name: Ceratoporella nicholsoni # Common_Name: #------------------ # Chronology_Information # Chronology: Age model is based on U/Th dating with average error of 3%. Our age models are based on U/Th dating and locating of the radiocarbon bomb spike. # #---------------- # Variables # # Data variables follow that are preceded by "##" in columns one and two. # Data line variables format: Variables list, one per line, shortname-tab-longname-tab-longname components (9 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data) # ##age age, , ,years AD, , , , ,N ##d18O_stk delta 18O of stack, Ceratoporella nicholsoni, , permil VPDB, ,corals and sclerosponges, , ,N ##d18O_t1 delta 18O of transect one, Ceratoporella nicholsoni, , permil PDB, ,corals and sclerosponges, , ,N ##d18O_t2 delta 18O of transect two, Ceratoporella nicholsoni, , permil PDB, ,corals and sclerosponges, , ,N ##d18O_t3 delta 18O of transect three, Ceratoporella nicholsoni, , permil PDB, ,corals and sclerosponges, , ,N # #---------------- # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Values: NAN # age d18O_stk d18O_t1 d18O_t2 d18O_t3 1992 -0.43 -0.36 -0.47 -0.47 1987 -0.39 -0.28 -0.44 -0.44 1982 -0.42 -0.31 -0.43 -0.51 1979 -0.45 NAN -0.40 -0.50 1977 -0.42 -0.35 -0.49 NAN 1972 -0.45 -0.41 -0.45 -0.50 1967 -0.37 -0.31 NAN -0.42 1963 -0.36 -0.32 -0.40 NAN 1957 -0.43 -0.26 -0.54 -0.49 1952 -0.33 -0.26 -0.36 -0.36 1950 -0.35 NAN -0.35 NAN 1947 -0.42 -0.28 -0.46 -0.53 1943 -0.41 -0.31 -0.50 NAN 1939 -0.44 -0.38 NAN -0.49 1934 -0.37 -0.25 -0.49 NAN 1930 -0.39 -0.31 -0.43 -0.44 1928 -0.36 NAN -0.36 -0.35 1926 -0.36 -0.36 NAN NAN 1921 -0.34 -0.32 -0.39 -0.32 1918 -0.23 -0.23 NAN NAN 1913 -0.32 -0.30 -0.34 NAN 1911 -0.48 NAN -0.48 NAN 1909 -0.37 -0.27 -0.48 NAN 1905 -0.41 -0.28 -0.53 NAN 1905 -0.29 -0.29 NAN NAN 1899 -0.30 -0.19 -0.42 NAN 1895 -0.47 -0.36 -0.59 NAN 1891 -0.49 -0.40 -0.58 NAN 1885 -0.42 -0.35 -0.49 NAN 1881 -0.30 -0.29 -0.32 NAN 1875 -0.29 -0.29 NAN NAN 1870 -0.42 -0.40 -0.45 NAN 1865 -0.32 -0.24 -0.40 NAN 1859 -0.31 -0.25 -0.36 NAN 1854 -0.33 -0.26 -0.39 NAN 1849 -0.28 -0.18 -0.39 NAN 1844 -0.38 -0.34 -0.41 NAN 1837 -0.41 -0.36 -0.46 NAN 1833 -0.37 -0.26 -0.47 NAN 1828 -0.40 -0.23 -0.57 NAN 1823 -0.46 -0.40 -0.52 NAN 1818 -0.54 -0.47 -0.61 NAN 1813 -0.36 -0.32 -0.41 NAN 1808 -0.44 -0.40 -0.48 NAN 1802 -0.38 -0.32 -0.44 NAN 1797 -0.40 -0.31 -0.49 NAN 1791 -0.27 -0.24 -0.30 NAN 1785 -0.36 -0.33 -0.38 NAN 1780 -0.31 -0.27 -0.34 NAN 1774 -0.40 -0.39 -0.42 NAN 1769 -0.32 -0.28 -0.36 NAN 1763 -0.40 -0.37 -0.43 NAN 1758 -0.42 -0.38 -0.45 NAN 1752 -0.37 -0.33 -0.42 NAN 1746 -0.37 -0.35 -0.39 NAN 1741 -0.43 -0.42 -0.44 NAN 1736 -0.36 -0.35 -0.37 NAN 1731 -0.49 -0.38 -0.59 NAN 1727 -0.40 -0.35 -0.46 NAN 1721 -0.34 -0.25 -0.42 NAN 1715 NAN -0.29 NAN NAN 1709 NAN -0.28 NAN NAN 1703 NAN -0.26 NAN NAN 1698 NAN -0.23 NAN NAN 1693 NAN -0.41 NAN NAN 1687 NAN -0.34 NAN NAN 1682 NAN -0.28 NAN NAN 1676 NAN -0.30 NAN NAN 1670 NAN -0.37 NAN NAN 1665 NAN -0.25 NAN NAN 1660 NAN -0.38 NAN NAN 1655 NAN -0.43 NAN NAN 1650 NAN -0.35 NAN NAN 1645 NAN -0.30 NAN NAN 1640 NAN -0.34 NAN NAN 1635 NAN -0.32 NAN NAN 1629 NAN -0.34 NAN NAN 1623 NAN -0.31 NAN NAN 1617 NAN -0.40 NAN NAN 1612 NAN -0.33 NAN NAN 1607 NAN -0.43 NAN NAN 1601 NAN -0.36 NAN NAN 1596 NAN -0.38 NAN NAN 1590 NAN -0.24 NAN NAN 1585 NAN -0.35 NAN NAN 1579 NAN -0.28 NAN NAN 1574 NAN -0.45 NAN NAN 1568 NAN -0.31 NAN NAN 1564 NAN -0.26 NAN NAN 1559 NAN -0.36 NAN NAN 1554 NAN -0.26 NAN NAN 1550 NAN -0.23 NAN NAN 1545 NAN -0.41 NAN NAN 1540 NAN -0.40 NAN NAN 1534 NAN -0.38 NAN NAN 1528 NAN -0.27 NAN NAN 1522 NAN -0.28 NAN NAN 1516 NAN -0.39 NAN NAN 1509 NAN -0.32 NAN NAN 1504 NAN -0.42 NAN NAN 1498 NAN -0.45 NAN NAN 1493 NAN -0.24 NAN NAN 1487 NAN -0.39 NAN NAN 1482 NAN -0.36 NAN NAN 1476 NAN -0.36 NAN NAN 1471 NAN -0.33 NAN NAN 1466 NAN -0.40 NAN NAN 1460 NAN -0.39 NAN NAN 1454 NAN -0.33 NAN NAN 1448 NAN -0.33 NAN NAN 1441 NAN -0.33 NAN NAN 1435 NAN -0.41 NAN NAN 1427 NAN -0.39 NAN NAN 1420 NAN -0.36 NAN NAN 1413 NAN -0.40 NAN NAN 1405 NAN -0.35 NAN NAN 1398 NAN -0.41 NAN NAN 1393 NAN -0.36 NAN NAN 1389 NAN -0.33 NAN NAN