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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. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.899064 (dataset in review), Supplement to: Sánchez-Montes, ML et al. (2019): Late Pliocene Cordilleran Ice Sheet development with warm Northeast Pacific sea surface temperatures. Climate of the Past

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Abstract:
We present a new multiproxy data set obtained from IODP core site U1417 (56.9598N, -147.109W, water depth -4187.5m) in the Gulf of Alaska. The sediments were collected during IODP Expedition 341 (Jaeger et al., 2014) and were analysed to reconstruct sea surface conditions by means of alkenone and IRD data covering the time interval from 4 to 1.5 Ma years ago. Terrestrial organic matter input to Site U1417 is assessed through the abundance of long-chain n-alkanes (TAR) and palynological analysis. We include a new age and depth model for Site U1417.
Keyword(s):
age model; alkenones; depth model; IRD; Pollen; SST; TAR; UK37; UK37'
Related to:
Sánchez-Montes, Maria Luisa (2018): Climate-ice sheet-ocean interactions in the Gulf of Alaska through the Pliocene and Pleistocene. Doctoral thesis, Durham University
Coverage:
Median Latitude: 56.959820 * Median Longitude: -147.109785 * South-bound Latitude: 56.959810 * West-bound Longitude: -147.109960 * North-bound Latitude: 56.959830 * East-bound Longitude: -147.109610
Date/Time Start: 2013-06-09T00:00:00 * Date/Time End: 2013-06-13T00:00:00
Minimum Elevation: -4188.1 m * Maximum Elevation: -4187.0 m
Event(s):
341-U1417C * Latitude: 56.959810 * Longitude: -147.109610 * Date/Time: 2013-06-09T00:00:00 * Elevation: -4188.1 m * Location: Southern Alaska Margin * Campaign: Exp341 (Southern Alaska Margin: Tectonics, Climate and Sedimentation) * Basis: Joides Resolution * Device: Drilling/drill rig (DRILL) * Comment: 28 cores; 225 m cored; 96.4 % recoverd, 226 m penetrated
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 * Device: Drilling/drill rig (DRILL) * Comment: 64 cores; 466.5 m cored; 65.3 % recoverd, 470.3 m penetrated
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1Event labelEventSánchez-Montes, Maria Luisa
2Sample code/labelSample labelSánchez-Montes, Maria LuisaSample ID
3Sample code/label 2Sample label 2Sánchez-Montes, Maria LuisaIODP Sample ID
4DEPTH, sediment/rockDepthmSánchez-Montes, Maria Luisaafter Jaeger et al. (2014)Geocode – Shipboard mid-point CCSF-A
5AGEAgeka BPSánchez-Montes, Maria Luisaafter Jaeger et al. (2014)Geocode – Shipboard age
6Sedimentation rateSed ratecm/kaSánchez-Montes, Maria Luisaafter Jaeger et al. (2014)Average
7DEPTH, sediment/rockDepthmSánchez-Montes, Maria Luisaafter Sánchez-Montes et al. (2019)Geocode
8AGEAgeka BPSánchez-Montes, Maria Luisaafter Sánchez-Montes et al. (2019)Geocode
9Sedimentation rateSed ratecm/kaSánchez-Montes, Maria Luisaafter Sánchez-Montes et al. (2019)Average
10Alkenone, unsaturation index UK37UK37Sánchez-Montes, Maria Luisa
11Alkenone, unsaturation index UK'37UK'37Sánchez-Montes, Maria Luisa
12Sea surface temperatureSST°CSánchez-Montes, Maria LuisaCalculated from UK'37 (Müller et al, 1998)
13Sea surface temperatureSST°CSánchez-Montes, Maria LuisaCalculated from UK37 (Prahl et al., 1988)
14Alkenone, C37:4C37:4%Sánchez-Montes, Maria Luisa
15Accumulation rate, ice rafted debrisAcc rate IRDg/cm2/kaSánchez-Montes, Maria Luisaafter Jaeger et al. (2014)IRD MAR according to the shipboard age model
16RatioRatioSánchez-Montes, Maria LuisaTerrestrial/Aquatic n-alkane (TAR) ratio
17Grains per unit sedimentGrains/sed#/cm3Sánchez-Montes, Maria LuisaPollen in grains/cc
Size:
1290 data points

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