# Arabian Sea Organic Carbon, Biomarker and XRF-Br data covering the last 50 ka #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # NOTE: Please cite original publication, online resource and date accessed when using this data. # If there is no publication information, please cite Investigator, title, online resource and date accessed. # # Description/Documentation lines begin with # # Data lines have no # # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/ # Description: NOAA Landing Page # Online_Resource: https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/by_contributor/orsi2017/orsi2017-br.txt # Description: NOAA location of the template # # Archive: Paleoceanography # # Parameter_Keywords: age control, biomarkers #--------------------------------------- # Contribution_Date # Date: 2017-07-17 #--------------------------------------- # File_Last_Modified_Date # Date: 2017-07-17 #--------------------------------------- # Title # Study_Name: Arabian Sea Organic Carbon, Biomarker and XRF-Br data covering the last 50 ka #--------------------------------------- # Investigators # Investigators: Orsi, W.D.; Coolen, M.J.L.; Wuchter, C.; He, L.; More, K.D.; Irigoien, X.; Chust, G.; Johnson, C.; Hemingway, J.D.; Lee, M.; Galy, V.; Giosan, L. #--------------------------------------- # Description_Notes_and_Keywords # Description: This study contains the biomarker record for core 11C with corresponding depth and age of samples measured # Provided Keywords: oxygen minimum zone, alkenone, sea surface temperature #--------------------------------------- # Publication # Authors: Orsi, W.D.; Coolen, M.J.L.; Wuchter, C.; He, L.; More, K.D.; Irigoien, X.; Chust, G.; Johnson, C.; Hemingway, J.D.; Lee, M.; Galy, V.; Giosan, L. # Published_Date_or_Year: 2017 # Published_Title: Climate oscillations reflected within the microbiome of Arabian Sea sediments # Journal_Name: Scientific Reports # Volume: 7 # Edition: # Issue: # Pages: # Report Number: # DOI: 10.1038/s41598-017-05590-9 # Online_Resource: # Full_Citation: # Abstract: Selection of microorganisms in marine sediment is shaped by energy-yielding electron acceptors for respiration that are depleted in vertical succession. However, some taxa have been reported to reflect past depositional conditions suggesting they have experienced weak selection after burial. In sediments underlying the Arabian Sea oxygen minimum zone (OMZ), we performed the first metagenomic profiling of sedimentary DNA at centennial-scale resolution in the context of a multi-proxy paleoclimate reconstruction. While vertical distributions of sulfate reducing bacteria and methanogens indicate energy-based selection typical of anoxic marine sediments, 5-15% of taxa per sample exhibit depthindependent stratigraphies indicative of paleoenvironmental selection over relatively short geological timescales. Despite being vertically separated, indicator taxa deposited under OMZ conditions were more similar to one another than those deposited in bioturbated intervals under intervening higher oxygen. The genomic potential for denitrification also correlated with palaeo-OMZ proxies, independent of sediment depth and available nitrate and nitrite. However, metagenomes revealed mixed acid and Entner-Dourdoroff fermentation pathways encoded by many of the same denitrifier groups. Fermentation thus may explain the subsistence of these facultatively anaerobic microbes whose stratigraphy follows changing paleoceanographic conditions. At least for certain taxa, our analysis provides evidence of their paleoenvironmental selection over the last glacial-interglacial cycle. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: National Science Foundation # Grant: MGG-1357017, OCE-0939564, OCE-0634731 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: KAUST-WHOI # Grant: 7000000463, 7000000464 #--------------------------------------- # Site Information # Site_Name: 64PE300–11 # Location: Arabian Sea # Country: Pakistan # Northernmost_Latitude: 23.121667 # Southernmost_Latitude: 23.121667 # Easternmost_Longitude: 66.496667 # Westernmost_Longitude: 66.496667 # Elevation: -566 #--------------------------------------- # Data_Collection # Collection_Name: 64PE300–11C XRF-Br Orsi2017 # First_Year: 52900 # Last_Year: 330 # Time_Unit: cal yr BP # Core_Length: 13.4 m # Notes: #--------------------------------------- # Chronology_Information # Chronology: # AMS radiocarbon ages for core 64PE300–11C and tie points to core SO90-136KL # labcode sample identification used by 14C laboratory # depth Depth top of sample interval (cm) # mat.dated Material Dated # 14C.age conventional radiocarbon age, years before 1950AD # 14C.err radiocarbon age, standard error # datemeth Dating method # reservoir Reservoir correction # delta-R Deviation from global mean reservoir correction # calib.14C.range Calibrated age range # calib.age.tie.point Median calibrated age or tie point # calib_method Calibration method # # labcode depth mat.dated 14C.age 14C.err datemeth reservoir delta-R calib.14C.range calib.age.tie.point calib_method # OS-112414 13 mixed planktonics 1470 20 14C AMS 565 35 745-930 848 Calib 7.1 # OS-111794 73 Orbulina universa 3270 20 14C AMS 565 35 2762-2992 2877 Calib 7.1 # OS-111793 87 Orbulina universa 3530 20 14C AMS 565 35 3106 - 3345 3229 Calib 7.1 # OS-110013 125 Orbulina universa 4280 20 14C AMS 565 35 4043 - 4333 4172 Calib 7.1 # OS-111792 176 Orbulina universa 5800 20 14C AMS 565 35 5925 - 6167 6037 Calib 7.1 # OS-111795 231 Orbulina universa 9380 25 14C AMS 565 35 9879 - 10165 10030 Calib 7.1 # NA 307 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 11960.91753 NaN # NA 374 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 12789.68282 NaN # NA 436 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 14500.4417 NaN # NA 453 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 15353.24324 NaN # NA 463 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 16752.42079 NaN # NA 599 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 23988.95717 NaN # NA 623 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 25238.37838 NaN # NA 674 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 27810.49839 NaN # NA 685 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 28730.1341 NaN # NA 703 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 29202.80822 NaN # NA 724 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 30286.20979 NaN # NA 760 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 32070.84847 NaN # NA 833 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 33841.72893 NaN # NA 869 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 35472.66055 NaN # NA 917 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 36589.72973 NaN # NA 935 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 38503.66533 NaN # NA 951 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 39587.52542 NaN # NA 970 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 40438.87677 NaN # NA 980 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 41526.71461 NaN # NA 995 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 42781.39711 NaN # NA 1038 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 45662.88528 NaN # NA 1128 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 46650.65269 NaN # NA 1161 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 46929.71528 NaN # NA 1177 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 47598.44296 NaN # NA 1204 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 48929.43089 NaN # NA 1217 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 50164.05405 NaN # NA 1259 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 51251.89189 NaN # NA 1276 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 52396.75947 NaN # NA 1294 NaN NaN NaN Tie to SO90-136KL NaN NaN NaN 52876.58343 NaN # #--------------------------------------- # Variables # Data variables follow that are preceded by "##" in columns one and two. # Variables list, one per line, shortname-tab- 10 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data,additional info ## depth depth,,,cm,,,,,N, ## age_calBP age,,,calendar years BP,,,,,N, ## XRF_Br bromine,,,counts/sec,,paleoceanography,,X-ray fluorescence,N, #------------------------ # Data # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Value: -999 depth age_calBP XRF_Br 1 400 983 5 650 1368.5 10 750 943.8 16 900 1234.7 21 1100 1189.6 27 1300 1270.3 32 1600 1226.5 37 1800 1322.22 43 1900 1338.5 48 2100 1163.11 54 2300 1171.2 59 2500 1008.56 66 2800 1127.78 71 2900 1120.5 76 3000 1139.3 79 3050 930.67 82 3100 786.4 85 3150 1007.6 88 3200 1105.22 96.4 3500 798.1 101.4 3600 989.9 107.4 3800 1084.5 110.9 3900 954.3 114.4 3950 943.9 118.4 4000 1163.4 122.4 4100 1154.6 127.4 4200 1318.3 133.4 4500 1263.3 138.4 4700 1223.4 143.4 4900 1214.1 148.4 5050 1209 154.4 5200 1210.9 159.4 5350 1244.1 164.4 5550 1125.6 175.4 6100 1077.3 183.4 6600 1008 191.4 7100 879.9 197.6 7800 675.7 208.6 8750 595.6 224.6 9500 515 237.6 10200 463.6 247.6 10500 488.9 257.6 10900 264.1 267.6 11100 204.4 278.7 11300 172.6 288.7 11500 181.7 298.7 11700 128.8 308.7 11900 110.9 318.7 12050 95.8 328.7 12150 87.1 338.7 12300 71.8 348.7 12450 94.6 358.7 12600 100.6 362.7 12700 97.1 368.7 12750 38.5 378.1 12850 46.8 385.1 13000 329 393.1 13150 368.9 399.1 13400 274.7 408.1 13600 345.3 415.1 13800 433.1 423.1 14050 335.7 432.1 14250 422.1 438.1 14400 467.8 448.1 14900 242.9 454.1 15500 47.8 468.1 16950 95.7 475.5 17400 411.9 482.5 17800 480.3 497.5 18750 478.7 507.5 19250 467.9 517.5 19750 506.7 527.5 20250 458.1 537.5 20800 513 547.5 21200 484.4 557.5 21650 556.1 562.5 22050 454.5 570.5 22400 475.3 576.6 22800 462.7 581.6 23100 607.7 589.6 23450 562.5 596.6 23900 563 606.6 24300 252.8 616.6 24900 229.8 626.6 25300 479.5 636.6 25900 763.5 642.6 26150 621.9 653.6 26850 587 658.6 27000 562 663.6 27200 443.1 668.6 27550 574.9 673.6 27900 190 678.2 28100 147.3 683.2 28550 461.5 688.2 28900 511.9 693.2 29000 389.2 698.2 29050 92.7 703.2 29100 124.4 708.2 29300 87.8 713.2 29800 105.3 718.2 29900 119.3 723.2 30200 141.4 728.2 30300 137.9 733.2 30700 198.4 738.2 31000 176.2 744.2 31300 164.3 748.2 31500 363.8 750.2 31550 651.7 754.2 31800 666.3 758.2 31950 372.4 763.2 32200 218.5 768.2 32300 165.4 773.2 32400 164.6 777.9 32600 128.4 778.9 32650 330.6 787.9 32800 300.2 792.9 32900 210.9 797.9 33000 201.9 802.9 33050 234.3 808.9 33100 367.7 812.9 33200 616.3 817.9 33300 540.3 822.9 33400 346.4 827.9 33500 242.6 832.9 33600 245.2 837.9 33850 273.5 842.9 34150 427.7 844.9 34300 785.9 852.9 34900 823.8 857.9 35100 469.5 864.9 35400 391.8 867.9 35500 308 872.9 35600 360.3 877.9 35800 401.3 882.9 35950 334 887.7 36000 308.5 892.7 36050 338.5 897.7 36100 410.6 902.7 36150 416.6 907.7 36200 670.1 912.7 36350 663.7 917.7 36600 634.1 922.7 37100 732.1 927.7 37600 204.9 932.7 38500 256.6 937.7 38900 194 942.7 39000 186.3 947.7 39200 291.1 952.7 39600 321.9 957.7 39900 463.6 962.7 40050 497.6 967.7 40100 645.7 972.7 41000 429.5 977.7 41300 525.1 982.7 41500 661.5 987.2 42200 503.4 992.2 42900 752.2 997.2 43000 641.9 1002.2 43500 518.7 1007.2 43800 579.6 1012.2 44100 564.9 1017.2 44400 539 1022.2 44700 561.3 1027.2 45000 151.8 1032.2 45400 133 1037.2 45800 83.9 1042.2 45950 94.4 1047.2 46000 134 1052.2 46020 116.8 1057.2 46050 139.4 1062.2 46080 136.2 1067.2 46100 147.6 1072.2 46150 140.6 1077.2 46180 109.6 1082.2 46200 121.4 1086.5 46300 139.3 1091.5 46400 44.64 1096.5 46450 116.33 1101.5 46480 171.84 1106.5 46500 214.27 1111.5 46550 215.54 1116.5 46600 255.32 1121.5 46700 414.09 1126.5 46800 313.6 1131.5 46840 311.83 1136.5 46900 338.14 1141.5 46950 596 1146.5 47000 734.08 1151.5 47050 365.2 1156.5 47100 278.83 1161.5 47200 233.27 1166.5 47250 294.13 1171.5 47500 385.04 1176.5 47600 460.64 1181.5 48000 573.79 1186.5 48200 768.05 1191.5 48350 769.1 1196.5 48750 262.88 1201.5 48900 168 1206.5 49800 178.7 1211.5 50000 367.38 1216.5 50200 360.35 1221.5 50300 497.15 1226.5 50400 518.73 1231.5 50500 604.59 1236.5 50600 731.36 1241.5 50700 785.54 1246.5 50800 883.97 1251.5 50900 815.21 1256.5 51200 357.19 1261.5 51300 137.01 1266.5 51800 120.97 1271.5 52300 133.26 1276.5 52400 135.86 1281.5 52500 190