Sánchez-Montes, Maria Luisa; Romero, Oscar E; Cowan, Ellen A; Müller, Juliane; Moy, Christopher M; Lloyd, Jeremy M; McClymont, Erin L (2021): Lipid biomarkers, siliceous microfossil assemblages, biogenic silica and carbon and nitrogen bulk and isotope analyses from IODP Hole 341-U1417D, Gulf of Alaska [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.936779
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Published: 2021-10-06 • DOI registered: 2022-06-27
Abstract:
We analysed IODP Expedition 341 Site U1417 to understand the palaeoceanography in the Gulf of Alaska across the Pliocene and early Pleistocene (4-1.7 Ma). The data submitted here are productivity-related biomarkers (alkenone and brassicasterol accumulation rates), siliceous microfossils (total diatoms and silicoflagellate accumulation rates and diatom assemblages accumulation rates and relative abundance), biogenic silica accumulation rates, bulk carbon and nitrogen accumulation rates and stable isotope ratios (δ13C and δ15N), terrestrial and aquatic n-alkane accumulation rates, the Shannon-Weaver index and preservation value of diatoms (prev. value). The diatom assemblages include pelagic high productivity, pelagic warm water, coastal high productivity, coastal moderate productivity, benthic and freshwater habitats.
Keyword(s):
alkenone MAR; aquatic n-alkane MAR; benthic diatoms; biogenic silica MAR; brassicasterol MAR; carbon isotope ratio (δ13C); coastal high productivity diatoms; coastal moderate productivity diatoms; diatoms; freshwater diatoms; Gulf of Alaska; IODP 341; nitrogen isotope ratio (δ15N); Paleoceanography; pelagic high productivity diatoms; pelagic warm water diatoms; Pleistocene; Pliocene; prev. value; Shannon-Weaver index; silicoflagellate; Site U1417; terrigenous n-alkane MAR; TN; TOC
Supplement to:
Sánchez-Montes, Maria Luisa; Romero, Oscar E; Cowan, Ellen A; Müller, Juliane; Moy, Christopher M; Lloyd, Jeremy M; McClymont, Erin L (2022): Plio‐Pleistocene Ocean Circulation Changes in the Gulf of Alaska and Its Impacts on the Carbon and Nitrogen Cycles and the Cordilleran Ice Sheet Development. Paleoceanography and Paleoclimatology, 37(7), e2021PA004341, https://doi.org/10.1029/2021PA004341
Related to:
Sánchez-Montes, Maria Luisa (2018): Climate-ice sheet-ocean interactions in the Gulf of Alaska through the Pliocene and Pleistocene [dissertation]. Durham University
Sánchez-Montes, Maria Luisa; McClymont, Erin L; Lloyd, Jeremy M; Müller, Juliane; Cowan, Ellen A; Zorzi, Coralie (2019): Alkenone sea surface temperatures, ice rafted debris, terrestrial/aquatic n-alkane ratio, pollen counts and a new age and depth models from IODP Expedition 341 Site U1417, Gulf of Alaska [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.899064
Sánchez-Montes, Maria Luisa; McClymont, Erin L; Lloyd, Jeremy M; Müller, Juliane; Cowan, Ellen A; Zorzi, Coralie (2020): Late Pliocene Cordilleran Ice Sheet development with warm northeast Pacific sea surface temperatures. Climate of the Past, 16(1), 299-313, https://doi.org/10.5194/cp-16-299-2020
Further details:
Jaeger, J M; Gulick, Sean P S; LeVay, Leah J; Asahi, H; Bahlburg, Dominik; Belanger, Christina L; Berbel, Glaucia B Benedetti; Childress, Laurel B; Cowan, Ellen A; Drab, Laureen; Forwick, Matthias; Fukumura, A; Ge, Shemin; Gupta, S M; Kioka, Arata; Konno, C E; März, Christian; Matsuzaki, Kenji M; McClymont, Erin L; Mix, Alan C; Moy, Christopher M; Müller, J; Nakamura, Atsunori; Ojima, Takanori; Ridgway, K D; Rodrigues Ribeiro, F; Romero, Oscar E; Slagle, Angela L; Stoner, Joseph S; St-Onge, Guillaume; Suto, Itsuki; Walczak, Maureen H; Worthington, Lindsay L (accepted): Site U1417 - Background and objectives. In: Proceedings of the IODP, Integrated Ocean Drilling Program, https://doi.org/10.2204/iodp.proc.341.103.2014
Coverage:
Latitude: 56.959830 * Longitude: -147.109960
Date/Time Start: 2013-06-13T00:00:00 * Date/Time End: 2013-06-13T00:00:00
Minimum DEPTH, sediment/rock: 212.201 m * Maximum DEPTH, sediment/rock: 417.340 m
Event(s):
341-U1417D * Latitude: 56.959830 * Longitude: -147.109960 * Date/Time: 2013-06-13T00:00:00 * Elevation: -4187.0 m * Location: Southern Alaska Margin * Campaign: Exp341 (Southern Alaska Margin: Tectonics, Climate and Sedimentation) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 64 cores; 466.5 m cored; 65.3 % recoverd, 470.3 m penetrated
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Sánchez-Montes, Maria Luisa | DSDP/ODP/IODP sample designation | ||
| 2 | Sample ID | Sample ID | Sánchez-Montes, Maria Luisa | IODP Sample ID | ||
| 3 | DEPTH, sediment/rock | Depth sed | m | Sánchez-Montes, Maria Luisa | after Jaeger et al. (2014) | Geocode – Shipboard mid-point CCSF-A depth (m) |
| 4 | Age | Age | Ma | Sánchez-Montes, Maria Luisa | after Jaeger et al. (2014) | |
| 5 | DEPTH, sediment/rock | Depth sed | m | Sánchez-Montes, Maria Luisa | After Sánchez-Montes et al. (2019) | Geocode – Average |
| 6 | Depth, bottom/max | Depth bot | m | Sánchez-Montes, Maria Luisa | After Sánchez-Montes et al. (2020) | Maximum |
| 7 | Depth, top/min | Depth top | m | Sánchez-Montes, Maria Luisa | After Sánchez-Montes et al. (2020) | Minimum |
| 8 | Age | Age | Ma | Sánchez-Montes, Maria Luisa | After Sánchez-Montes et al. (2019) | |
| 9 | Age, error | Age e | ± | Sánchez-Montes, Maria Luisa | Calculated | Age errors (Ma; Difference between Jaeger et al., 2014 and Sánchez-Montes et al., 2019 magnetic reversals). |
| 10 | Sedimentation rate | SR | cm/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2019) | Average |
| 11 | Sedimentation rate | SR | cm/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Minimum |
| 12 | Sedimentation rate | SR | cm/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Maximum |
| 13 | Accumulation rate, alkenones | Acc rate alk | µg/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2019) | Average |
| 14 | Accumulation rate, alkenones | Acc rate alk | µg/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Minimum |
| 15 | Accumulation rate, alkenones | Acc rate alk | µg/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Maximum |
| 16 | Accumulation rate, 24-Methylcholesta-5,22E-dien-3beta-ol | Acc rate brassicasterol | µg/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2019) | Average |
| 17 | Accumulation rate, 24-Methylcholesta-5,22E-dien-3beta-ol | Acc rate brassicasterol | µg/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Minimum |
| 18 | Accumulation rate, 24-Methylcholesta-5,22E-dien-3beta-ol | Acc rate brassicasterol | µg/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Maximum |
| 19 | δ15N | δ15N | ‰ air | Sánchez-Montes, Maria Luisa | ||
| 20 | Nitrogen | N | % | Sánchez-Montes, Maria Luisa | ||
| 21 | Accumulation rate, nitrogen | Acc rate N | mg/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2019) | Average |
| 22 | Accumulation rate, nitrogen | Acc rate N | mg/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Minimum |
| 23 | Accumulation rate, nitrogen | Acc rate N | mg/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Maximum |
| 24 | δ13C | δ13C | ‰ PDB | Sánchez-Montes, Maria Luisa | ||
| 25 | Carbon, organic, total | TOC | % | Sánchez-Montes, Maria Luisa | ||
| 26 | Accumulation rate, total organic carbon | Acc rate TOC | mg/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2019) | Average |
| 27 | Accumulation rate, total organic carbon | Acc rate TOC | mg/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Minimum |
| 28 | Accumulation rate, total organic carbon | Acc rate TOC | mg/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Maximum |
| 29 | Accumulation rate, n-Alkanes, aquatic | Acc rate n-Alk aqua | µg/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2019) | Average |
| 30 | Accumulation rate, n-Alkanes, aquatic | Acc rate n-Alk aqua | µg/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Minimum |
| 31 | Accumulation rate, n-Alkanes, aquatic | Acc rate n-Alk aqua | µg/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Maximum |
| 32 | Accumulation rate, n-Alkanes, terrestrial | Acc rate n-Alk terr | µg/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2019) | Average |
| 33 | Accumulation rate, n-Alkanes, terrestrial | Acc rate n-Alk terr | µg/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Minimum |
| 34 | Accumulation rate, n-Alkanes, terrestrial | Acc rate n-Alk terr | µg/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Maximum |
| 35 | Accumulation rate, diatoms | Acc rate diatom | 106 #/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2019) | Average of million valves/cm**2 /ka |
| 36 | Accumulation rate, diatoms | Acc rate diatom | 106 #/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Minimum of million valves/cm**2 /ka |
| 37 | Accumulation rate, diatoms | Acc rate diatom | 106 #/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Maximum of million valves/cm**2 /ka |
| 38 | Accumulation rate, silicoflagellates | Acc rate silicofl | 106 #/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2019) | Average of million skeletons/cm**2 /ka |
| 39 | Accumulation rate, silicoflagellates | Acc rate silicofl | 106 #/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Minimum of million skeletons/cm**2 /ka |
| 40 | Accumulation rate, silicoflagellates | Acc rate silicofl | 106 #/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Maximum of million skeletons/cm**2 /ka |
| 41 | Diatoms freshwater | Diatom fw | % | Romero, Oscar E | Abundance estimate | |
| 42 | Accumulation rate, diatoms, freshwater | Acc rate diatom fw | 106 #/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2019) | Average of million valves/cm**2 /ka |
| 43 | Accumulation rate, diatoms, freshwater | Acc rate diatom fw | 106 #/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Minimum of million valves/cm**2 /ka |
| 44 | Accumulation rate, diatoms, freshwater | Acc rate diatom fw | 106 #/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Maximum of million valves/cm**2 /ka |
| 45 | Diatoms, coastal high productivity | Diatom coast high prod | % | Romero, Oscar E | Abundance estimate | |
| 46 | Accumulation rate, diatoms, coastal high productivity | Acc rate diatom coast high prod | 106 #/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2019) | Average of million valves/cm**2 /ka |
| 47 | Accumulation rate, diatoms, coastal high productivity | Acc rate diatom coast high prod | 106 #/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Minimum of million valves/cm**2 /ka |
| 48 | Accumulation rate, diatoms, coastal high productivity | Acc rate diatom coast high prod | 106 #/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Maximum of million valves/cm**2 /ka |
| 49 | Diatoms, benthic | Diatom benthic | % | Romero, Oscar E | Abundance estimate | |
| 50 | Accumulation rate, diatoms, benthic | Acc rate diatom benth | 106 #/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2019) | Average of million valves/cm**2 /ka |
| 51 | Accumulation rate, diatoms, benthic | Acc rate diatom benth | 106 #/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Minimum of million valves/cm**2 /ka |
| 52 | Accumulation rate, diatoms, benthic | Acc rate diatom benth | 106 #/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Maximum of million valves/cm**2 /ka |
| 53 | Diatoms, pelagic high productivity | Diatom pel high prod | % | Romero, Oscar E | Abundance estimate | |
| 54 | Accumulation rate, diatoms, pelagic high productivity | Acc rate diatom pel high prod | 106 #/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2019) | Average of million valves/cm**2 /ka |
| 55 | Accumulation rate, diatoms, pelagic high productivity | Acc rate diatom pel high prod | 106 #/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Minimum of million valves/cm**2 /ka |
| 56 | Accumulation rate, diatoms, pelagic high productivity | Acc rate diatom pel high prod | 106 #/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Maximum of million valves/cm**2 /ka |
| 57 | Diatoms, pelagic warm water | Diatom pel warm water | % | Romero, Oscar E | Abundance estimate | |
| 58 | Accumulation rate, diatoms, pelagic warm water | Acc rate diatom pel warm water | 106 #/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2019) | Average of million valves/cm**2 /ka |
| 59 | Accumulation rate, diatoms, pelagic warm water | Acc rate diatom pel warm water | 106 #/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Minimum of million valves/cm**2 /ka |
| 60 | Accumulation rate, diatoms, pelagic warm water | Acc rate diatom pel warm water | 106 #/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Maximum of million valves/cm**2 /ka |
| 61 | Diatoms, coastal moderate productivity | Diatom coast mod prod | % | Romero, Oscar E | Abundance estimate | |
| 62 | Accumulation rate, diatoms, coastal moderate productivity | Acc rate diatom coast mod P | 106 #/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2019) | Average of million valves/cm**2 /ka |
| 63 | Accumulation rate, diatoms, coastal moderate productivity | Acc rate diatom coast mod P | 106 #/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Minimum of million valves/cm**2 /ka |
| 64 | Accumulation rate, diatoms, coastal moderate productivity | Acc rate diatom coast mod P | 106 #/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Maximum of million valves/cm**2 /ka |
| 65 | Shannon Diversity Index | H' | Romero, Oscar E | |||
| 66 | Preservation value | Prev value | Romero, Oscar E | |||
| 67 | Opal, biogenic silica | bSiO2 | % | Romero, Oscar E | wt.% | |
| 68 | Accumulation rate, opal | Acc rate opal | g/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2019) | Average |
| 69 | Accumulation rate, opal | Acc rate opal | g/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Minimum |
| 70 | Accumulation rate, opal | Acc rate opal | g/cm2/ka | Sánchez-Montes, Maria Luisa | Calculated after Sánchez-Montes et al. (2020) | Maximum |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
6501 data points
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