Mollusk record of monsoon variability during the L2-S2 cycle in the Luochuan loess sequence, China

Auteur :
ROUSSEAU, D.-D.

Description :
The aim of this study is to expand the use of the mollusk assemblages as monsoon indices during the penultimate glacial-interglacial cycle in the Loess Plateau and then analyze the variability of the last two climatic cycles. Study of terrestrial mollusks from the loess sequence in Luochuan, gathered in ecological groups according to the moisture and temperature requirements of the identified species, indicates alternating strengthened summer and winter paleomonsoons between 130,000 and 244,000 yr. These results agree with an increase in the regional aridity, since 500,000 yr, deduced from the study of the eolian flux in the northwestern pacific downwind from China.


Type de document :
Article de périodique

Source :
Quaternary research, issn : 0033-5894, 1999, vol. 52, n°. 3, p. 286-292, Collation : Illustration, Références bibliographiques : 24 ref.

Date :
1999

Editeur :
Pays édition : Etats-Unis, San Diego, CA, Elsevier