Productivity and sea surface conditions in the Gulf of Alaska from IODP Site 341-U1419

Iron fertilization of surface waters along the northern Alaskan margin (mainly linked to Cordilleran Ice Sheet iceberg discharge) as an essential driver of phytoplankton growth during the past 54 ka. Occurrence of calcareous and siliceous primary producers was largely unaffected by low SST condition...

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Bibliographic Details
Main Authors: Romero, Oscar E, LeVay, Leah J, McClymont, Erin L, Müller, Juliane, Cowan, Ellen A
Format: Other/Unknown Material
Language:English
Published: PANGAEA 2021
Subjects:
Alaska
Alkenones
biogenic silica
Calcium Carbonate
diatoms
Glacial-Interglacial
high latitude
Holocene
icebergs
Integrated Ocean Drilling Program / International Ocean Discovery Program
IODP
IP25
Last Glacial Maximum
Late Quaternary
Meltwater
nannofossils
North Pacific
opal
Pleistocene
TOC
Gulf of Alaska
Pacific
glaciers
Ice Sheet
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.932590
https://doi.org/10.1594/PANGAEA.932590
Description
Summary:Iron fertilization of surface waters along the northern Alaskan margin (mainly linked to Cordilleran Ice Sheet iceberg discharge) as an essential driver of phytoplankton growth during the past 54 ka. Occurrence of calcareous and siliceous primary producers was largely unaffected by low SST conditions during MIS 3 and MIS 2. Prominent role of tidewater glaciers in defining marine productivity dynamics of high-latitude coastal regions should be considered in understanding land-ocean interactions.

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