Lipid biomarkers, siliceous microfossil assemblages, biogenic silica and carbon and nitrogen bulk and isotope analyses from IODP Hole 341-U1417D, Gulf of Alaska


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.

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Creator Sánchez-Montes, Maria Luisa ORCID logo; Romero, Oscar E ORCID logo; Cowan, Ellen A ORCID logo; Müller, Juliane ORCID logo; Moy, Christopher M ORCID logo; Lloyd, Jeremy M; McClymont, Erin L ORCID logo
Publisher PANGAEA
Publication Year 2021
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 6501 data points
Discipline Earth System Research
Spatial Coverage (-147.110 LON, 56.960 LAT); Southern Alaska Margin