AustralieFrV1, Main, Exploration, bibRecord, 005999

Physical chemical analysis of marine sediment cementation from the Gulf of Guinea

Identifieur interne : 005999 ( Main/Exploration ); précédent : 005998; suivant : 005A00

Physical chemical analysis of marine sediment cementation from the Gulf of Guinea

Auteurs : XIANFENG LIU [France, Australie] ; Tammam Hammad [France] ; Nadia Saiyouri [France] ; Mahdia Hattab [France]

Source :

Comptes rendus. Géoscience [ 1631-0713 ] ; 2012.

RBID : Pascal:13-0219001

Descripteurs français

Pascal (Inist)
- Analyse chimique, Sédiment marin, Ciment roche, Consolidation, Porosité, Capacité échange cation, Méthode injection mercure, Analyse thermique, Gel, Argile, Agglomération, Modèle, Microscopie électronique balayage, Donnée MEB, Spectrométrie, Microstructure, Kaolinite, Smectite, Cimentation, Analyse physicochimique, Porosimétrie mercure, Golfe de Guinée.
Wicri :
- topic : Agglomération, Spectrométrie.

English descriptors

KwdEn :
- Gulf of Guinea, SEM data, aggregation, cation exchange capacity, cement, chemical analysis, clay, consolidation, gels, kaolinite, marine sediments, mercury injection method, microstructures, models, porosity, scanning electron microscopy, smectite, spectroscopy, thermal analysis.

Abstract

This study aims at investigating the cementation of marine sediments from the Gulf of Guinea by using physicochemical analysis. In order to highlight the presence of cementation in the sediments, three conventional consolidation tests were conducted on intact and remoulded samples. Mercury intrusion porosimetry analyses were then carried out on the specimens taken from samples after consolidation tests. Several physicochemical experimental techniques were used to analyze these cementations, such as cation exchange capacity analysis, batch test, scanning electron microscope imaging coupled with EDS chemical analysis, and thermal analysis. The results seem to indicate that the cementation of these sediments is predominated by the presence of smectite gel between clay aggregates (clusters). Finally, a conceptual sediment microstructural model is proposed to describe the cementation.

Affiliations:

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Le document en format XML

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<front><div type="abstract" xml:lang="en">This study aims at investigating the cementation of marine sediments from the Gulf of Guinea by using physicochemical analysis. In order to highlight the presence of cementation in the sediments, three conventional consolidation tests were conducted on intact and remoulded samples. Mercury intrusion porosimetry analyses were then carried out on the specimens taken from samples after consolidation tests. Several physicochemical experimental techniques were used to analyze these cementations, such as cation exchange capacity analysis, batch test, scanning electron microscope imaging coupled with EDS chemical analysis, and thermal analysis. The results seem to indicate that the cementation of these sediments is predominated by the presence of smectite gel between clay aggregates (clusters). Finally, a conceptual sediment microstructural model is proposed to describe the cementation.</div>
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Physical chemical analysis of marine sediment cementation from the Gulf of Guinea

Physical chemical analysis of marine sediment cementation from the Gulf of Guinea

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri