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Evidence for prolonged mid-Paleozoic plutonism and ages of crustal sources in east-central Alaska from SHRIMP U-Pb dating of syn-magmatic, inherited, and detrital zircon

Date

Authors

Dusel-Bacon, Cynthia

Williams, Ian

Publisher

N R C Research Press

Abstract

Sensitive high-resolution ion microprobe (SHRIMP) U-Pb analyses of igneous zircons from the Lake George assemblage in the eastern Yukon-Tanana Upland (Tanacross quadrangle) indicate both Late Devonian (∼370 Ma) and Early Mississippian (∼350 Ma) magmat

Keywords

Keywords: Back arcs; Continental margins; Crustal sources; Detrital zircons; Grain populations; Late devonians; Magmatism; North americans; Orthogneisses; Paleozoic; Potential sources; Sensitive high-resolution ion microprobe; Subduction zones; Tectonic settings; U

URI

http://hdl.handle.net/1885/49906

Collections

ANU Research Publications

Source

Canadian Journal of Earth Sciences

Type

Journal article

DOI

10.1139/E09-005

Restricted until

2037-12-31

Downloads

File

Description

01_Dusel-Bacon_Evidence_for_prolonged_2009.pdf (1.9 MB)