Proc. IODP, 340, Synthesis: stratigraphy and age control for IODP Sites U1394, U1395, and U1396 offshore Montserrat in the Lesser Antilles

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Abstract Introduction Geological setting Past offshore work Methods Core sites Core logging Identification of coring artifacts—especially sand sucked in during piston coring Core sampling Grain sizes Componentry—composition of layers Classification of deposit types in cores Pb isotopes Dating Results Unit identification Dating of units Correlation to units dated previously Stratigraphy Site U1394 Site U1395 Site U1396 Summary Acknowledgments References Figures Figure F1. Topographic map of Montserrat. Figure F2. Unit correlation between Sites U1394 and U1395. Figure F3. Oxygen isotope analyses. Figure F4. Pb isotope data. Figure F5. Complete oxygen isotope stratigraphy. Tables Table T1. Radiocarbon data, Hole U1395B Table T2. Lead isotope data, Site U1396. Appendix A Appendix B Supplementary data tables PDF file			Previous \| Next doi:10.2204/iodp.proc.340.204.2016 Supplementary data tables Data shown in “Appendix A” and “Appendix B” are presented in Microsoft Excel format in “Supplementary material.” Each table is also available in CSV format. Table 204_ST01 Grain size data expressed in micrometers. Samples were analyzed by laser in triplicate; results from each analysis and the average result for each sample are shown. See Table 204_ST01.XLSX in “Supplementary material” or 204_ST01.CSV. Table 204_ST02 Statistics on collected grain size data from GRADISTAT. Samples are from event deposits (turbidites and tephra fall); statistics were calculated using average measurements from the laser grain size analyses in Table ST01. Calculations of the mean, sorting, skewness, and kurtosis are given and were calculated using both the method of moments and Folk and Ward (1957). Sizes of the 10%, 50%, and 90% percentile are calculated, and the percentage of each grain size is shown. See Table 204_ST02.XLSX in “Supplementary material” or 204_ST02.CSV. Table 204_ST03 Point componentry of individual units is given using a field area method. Individual counts and calculated percentages of each component are provided. At least 300 grains were counted. See Table 204_ST03.XLSX in “Supplementary material” or 204_ST03.CSV. Table 204_ST04 Corrected oxygen and carbon isotope measurements from the analysis of Globigerinoides ruber from hemipelagic mud. Also included is the number of Globorotalia menardii and Globorotalia tumida specimens per 300 foraminifers and the calculated percentage of G. menardii and G. tumida. Around the Lesser Antillies G. menardii and G. tumida are difficult to distinguish, as the species appear similar; thus, the foraminifer species have been grouped together. See Table 204_ST04.XLSX in “Supplementary material” or 204_ST04.CSV. Table 204_ST05 Thicknesses of all units, cumulative thickness of units, and cumulative thickness of overlying hemipelagic mud above all event deposits (tephra falls and turbidites). Unit numbers correspond to numbers in “Appendix B.” See Table 204_ST05.XLSX in “Supplementary material” or 204_ST05.CSV. Top of page \| Previous \| Next