Stable isotopes (δ¹³Corg and d15N) from sediment core PRGL_1-4 ...

In this study we use bulk sediment organic matter stable isotopes (d13Corg and d15N) to examine the nature and timing of preserved organic matter in borehole PRGL1-4 from Northwestern Mediterranean Sea. This region is known as a transitional zone between the North Atlantic atmospheric circulation an...

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Bibliographic Details
Main Authors: Pasquier, Virgil, Toucanne, Samuel, Sansjofre, Pierre, Dixit, Yama, Revillon, Sidonie, Rabineau, Marina
Format: Dataset
Language:English
Published: PANGAEA 2019
Subjects:
Mediterranean - Rainfall - North Atlantic oscillation - Organic matter - North Mediterranean borderland - Sapropel
DEPTH, sediment/rock
AGE
δ13C, organic carbon
Carbon, organic, total
δ15N, organic matter
Nitrogen, total
Core drilling
Carbon analyser
Nitrogen analyser
PROMESS1
Bavenit
Profiles across Mediterranean Sedimentary Systems PROMESS
North Atlantic
North Atlantic oscillation
Online Access:https://dx.doi.org/10.1594/pangaea.902764
https://doi.pangaea.de/10.1594/PANGAEA.902764
Description
Summary:In this study we use bulk sediment organic matter stable isotopes (d13Corg and d15N) to examine the nature and timing of preserved organic matter in borehole PRGL1-4 from Northwestern Mediterranean Sea. This region is known as a transitional zone between the North Atlantic atmospheric circulation and the North African monsoon system. In the Gulf of Lion (SE France), increased inputs of organic matter from sediment-laden rivers occurred during warm substages of the last 200 kyr (MIS 5e, 5c, and 5a; MIS 6d, and 6b). Increased terrestrial organic matter are inferred from organic carbon isotopic composition (d13Corg), and are interpreted as resulting from enhanced rainfall over the Rhone river catchment area. Such increase in terrestrial organic carbon induced enhancement of the primary productivity leading to the formation of local oxygen minimum zone as demonstrated by ~3‰ values in d15N. Comparison with regional paleohydrological records from the northern Mediterranean borderlands reveals the regional ... : Supplement to: Pasquier, Virgil; Toucanne, Samuel; Sansjofre, Pierre; Dixit, Yama; Revillon, Sidonie; Mokeddem, Zohra; Rabineau, Marina (2019): Organic matter isotopes reveal enhanced rainfall activity in Northwestern Mediterranean borderland during warm substages of the last 200 kyr. Quaternary Science Reviews, 205, 182-192 ...

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