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

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

Bibliographic Details
Published in:Canadian Journal of Earth Sciences
Main Authors: Dusel-Bacon, Cynthia, Williams, Ian
Format: Article in Journal/Newspaper
Language:unknown
Published: N R C Research Press
Subjects:
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
Yukon
Quadrangle
Lake George
Tanacross
Alaska
Online Access:http://hdl.handle.net/1885/49906
https://doi.org/10.1139/E09-005
https://openresearch-repository.anu.edu.au/bitstream/1885/49906/4/Dusel-Bacon_%2526_Williams_Evidence_2009.pdf.jpg
https://openresearch-repository.anu.edu.au/bitstream/1885/49906/5/01_Dusel-Bacon_Evidence_for_prolonged_2009.pdf.jpg
Description
Summary: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

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