p40sAr/p39sAr age-spectrum data for whole rock basalts, and plagioclase and biotite from tephra
Subtitle: a traverse down the Porcupine River, east-central Alaska
By: by Michael J. Kunk, and Henry Cortesini, Jr
Contributors: Cortesini, Henry; Geological Survey (U.S.)
Series: Open-file report -- 92-701; U.S. Geological Survey open-file report -- 92-701
Publisher: U.S. Dept. of the Interior, Geological Survey; Books and Open-File Reports Section, distributor]
Published: 1992
Place of publication: Reston, Va; [Denver, Colo
Language: eng
Format: Microform
Number of pages: 81
Subjects: Potassium-argon dating; Basalt -- Alaska; Basalt -- Yukon Territory
Other titles: Age spectrum data for whole rock basalts, and plagioclase and biotite from tephra
Notes: Distributed to depository libraries in microfiche

Shipping list no.: 93-1136-M

Includes bibliographical references (leaf 81)

Microfiche. [Denver, Colo. : U.S. Geological Survey, 1993] 1 microfiche : negative