(Table T2) Biogenic opal in Palmer Deep sediments at ODP Site 178-1098 ...

High-resolution records of sedimentary proxies provide insights into fine-scale geochemical responses to climatic forcing. Gamma-ray attenuation (GRA) bulk-density data and magnetic stratigraphy records from Palmer Deep, Site 1098, show variability close to the same scale as ice cores, making this s...

Full description

Bibliographic Details
Main Authors: Anderson, Linda Davis, Ravelo, Ana Christina
Format: Dataset
Language:English
Published: PANGAEA 2001
Subjects:
DEPTH, sediment/rock
Depth, composite
Sample code/label
Opal, biogenic silica
Opal, biogenic silica, standard deviation
Composite Core
Intercore correlation
DSDP/ODP/IODP sample designation
Opal, extraction; Mortlock & Froelich, 1989
Leg178
Joides Resolution
Ocean Drilling Program ODP
North Atlantic
Online Access:https://dx.doi.org/10.1594/pangaea.127863
https://doi.pangaea.de/10.1594/PANGAEA.127863
Description
Summary:High-resolution records of sedimentary proxies provide insights into fine-scale geochemical responses to climatic forcing. Gamma-ray attenuation (GRA) bulk-density data and magnetic stratigraphy records from Palmer Deep, Site 1098, show variability close to the same scale as ice cores, making this site ideal for high-resolution geochemical investigations. In conjunction with shipboard geophysical measurements, silica records allow high-resolution evaluation of the frequencies and amplitudes of biogenic variability. This provides investigators additional data sets to evaluate the global extent of climatic events that are presently defined by regional oceanic data sets (e.g., Younger Dryas in the North Atlantic) and to evaluate the potential mechanisms that link biological productivity and climate in the Southern Ocean.In addition, because of the observed links between diatom blooms and export productivity (Michaels and Silver, 1988, doi:10.1016/0198-0149(88)90126-4), biogenic silica may be an indicator of the ... : Supplement to: Anderson, Linda Davis; Ravelo, Ana Christina (2001): Data report: Biogenic opal in Palmer Deep sediments, Site 1098, Leg 178. In: Barker, PF; Camerlenghi, A; Acton, GD; Ramsay, ATS (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 178, 1-7 ...

Similar Items