p40sAr-p39sAr dating of the Jaramillo Normal Subchron and the Matuyama and Brunhes geomagnetic boundary
By: by Glen A. Izett and John D. Obradovich
Contributors: Obradovich, John D; Geological Survey (U.S.)
Series: Open-file report -- 92-699; U.S. Geological Survey open-file report -- 92-699
Publisher: U.S. Dept. of the Interior, Geological Survey; [Books and Open-File Reports Section
Published: 1992
Place of publication: [Denver, Colo.]
Language: eng
Format: Microform
Number of pages: 22
Subjects: Potassium-argon dating; Geomagnetism
Notes: Distributed to depository libraries in microfiche

Shipping list no.: 93-1121-M

"December 1992."

Includes bibliographical references (leaves 12-16)

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