Details for: Changes in surface productivity and subsurface denitrification during the Holocene , a multiproxy study from the eastern Arabian Sea › CCI - Catalogue Collectif indexé du réseau FRANTIQ catalog

Image from Google Jackets

Normal view MARC view

Changes in surface productivity and subsurface denitrification during the Holocene : a multiproxy study from the eastern Arabian Sea / R. Agnihotri, S.K. Bhattacharya, M.M. Sarin, B.L.K. Somayajulu

Extrait

Appartient au périodique : The Holocene, 13, 5/1, p. 701-713, 2003

Publication: 2003 Langue: Anglais Auteur principal: Agnihotri, Rajesh Co-auteur: Bhattacharya, Sourendra Kumar ; Sarin, M. M., Manmohan; Somayajulu, B. L. K Résumé: Spatial and temporal variations in the intensity of subsurface denitrification in the water-column of the eastem Arabian Sea have been investigated using chemical and isotopic proxies. The data show a steady increase in the denitrification intensity from ∼10 ka to ∼2 ka BP, probably caused by changes in surface productivity fuelled by strengthening of upwelling (monsoonal intensity). In addition, changes in redox conditions and detrital material input are assessed using abundances of a suite of major and trace elements. The temporal variations in some of the monsoonal proxies are characterized by periodicities of ∼1400 and ∼700 years, similar to those reported in the South Asian (Chinese) monsoon and high-latitude climate (north Atlantic region). (auteur).

Sujet: géologie Lieu: péninsule arabique Époque: Holocène

Item type: Extrait

Holdings
Current library	Call number	Status	Date due	Barcode
Nanterre : MSH Mondes - Paléorient - Préhistoire et Protohistoire orientales		Non consultable		PAOR256

Spatial and temporal variations in the intensity of subsurface denitrification in the water-column of the eastem Arabian Sea have been investigated using chemical and isotopic proxies. The data show a steady increase in the denitrification intensity from ∼10 ka to ∼2 ka BP, probably caused by changes in surface productivity fuelled by strengthening of upwelling (monsoonal intensity). In addition, changes in redox conditions and detrital material input are assessed using abundances of a suite of major and trace elements. The temporal variations in some of the monsoonal proxies are characterized by periodicities of ∼1400 and ∼700 years, similar to those reported in the South Asian (Chinese) monsoon and high-latitude climate (north Atlantic region). (auteur)

There are no comments on this title.

to post a comment.