Biogenic opal record of gravity core MSM45_19-2

Biogenic opal (BSi) concentrations were analysed as indicator for past primary productivity on gravity core MSM45_19-2 from the northern Labrador Shelf. Gravity core MSM45_19-2 was obtained during R/V Maria S. Merian expedition MSM45 (58°45.68'N, 61°56.25'W, water depth: 202 m) in 2015 (Sc...

Full description

Bibliographic Details
Main Authors: Kolling, Henriette Marie, Doering, Kristin, Kienast, Markus, Kienast, Stephanie S, Schneider, Ralph R
Format: Dataset
Language:English
Published: PANGAEA 2022
Subjects:
8.2 ka event
Accumulation rate
biogenic silica per year
Accumulation rate per year
After Mortlock and Froelich (1981)
biogenic opal
DEPTH
sediment/rock
GC
Gravity corer
Holocene
Labrador Sea
Labrador Shelf
Maria S. Merian
MSM45
MSM45_418-2
MSM45-19-2
Opal
biogenic silica
primary production
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.949244
https://doi.org/10.1594/PANGAEA.949244
Description
Summary:Biogenic opal (BSi) concentrations were analysed as indicator for past primary productivity on gravity core MSM45_19-2 from the northern Labrador Shelf. Gravity core MSM45_19-2 was obtained during R/V Maria S. Merian expedition MSM45 (58°45.68'N, 61°56.25'W, water depth: 202 m) in 2015 (Schneider et al., 2016). Biogenic opal was determined at Dalhousie University following the method of (Mortlock and Froelich , 1989). Briefly, amorphous silica was extracted from ca. 20 mg subsamples using a 2 M Na2 CO3 solution at 85°C for 5 h, followed by the measurement of dissolved silica concentrations by molybdenum blue spectrophotometry.

Similar Items