IGB

Connexion

(Article of periodic en Anglais - 1984)

Document title

Tephrochronology of Late Wisconsin deglaciation and Holocene glacier fluctuations near Glacier Peak, North Cascade Range, Washington

Authors(s) and Affiliation(s)

BEGET J. E. ;

Abstract

Tephra layers near Glacier Peak in the North Cascade Range provide limiting dates for four periods of alpine glacier advance. Field relations suggest that late Wisconsin alpine glaciers last advanced prior to the eruption of tephra layers from Glacier Peak about 11.250 yr B.P. Late Wisconsin deglaciation in the central North Cascades was complete prior to the Glacier Peak tephra eruptions. Glaciers again expanded in the early Holocene about 8400-8300 yr B.P. Soil formed in alpine meadows during an episode of mild climate in the middle Holocene prior to at least two intervals of glacier expansion: an older episode between 5100 and 3400 yr B.P., and a younger episode within the last 1000 yr.

Source

Article of periodic

published at : Quaternary research New York

Editor :

Millesime : 1984, vol. 21, no3 [pp. 304-316]

Bibliographic references : 62 réf.

Language

Anglais

Refdoc record number (ud4) : 12275544 : Permanent link - XML version
Powered by Pxxo