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Issues
Volume 72, Number 4
April 1961

ISSN 0016-7606
EISSN 1943-2674
Limnology and Amino-Acid Content of Some Lake Deposits in Minnesota, Montana, Nevada, and Louisiana
GSA Bulletin April 01, 1961, Vol.72, 519-545. doi:https://doi.org/10.1130/0016-7606(1961)72[519:LAACOS]2.0.CO;2
Seismic Evidence Supporting a New Interpretation of the Cody Terrace Near Cody, Wyoming
GSA Bulletin April 01, 1961, Vol.72, 547-555. doi:https://doi.org/10.1130/0016-7606(1961)72[547:SESANI]2.0.CO;2
Structure of the Glenarm Series in Chester County, Pennsylvania
GSA Bulletin April 01, 1961, Vol.72, 557-577. doi:https://doi.org/10.1130/0016-7606(1961)72[557:SOTGSI]2.0.CO;2
Patterns and Origin of Radial Dike Swarms Associated with West Spanish Peak and Dike Mountain, South-Central Colorado
GSA Bulletin April 01, 1961, Vol.72, 579-589. doi:https://doi.org/10.1130/0016-7606(1961)72[579:PAOORD]2.0.CO;2
Lunar Features and Lunar Problems
GSA Bulletin April 01, 1961, Vol.72, 591-603. doi:https://doi.org/10.1130/0016-7606(1961)72[591:LFALP]2.0.CO;2
Algodones Dunes of Southeastern California
GSA Bulletin April 01, 1961, Vol.72, 605-619. doi:https://doi.org/10.1130/0016-7606(1961)72[605:ADOSC]2.0.CO;2
KNOOP HARDNESS NUMBERS FOR 127 OPAQUE MINERALS
GSA Bulletin April 01, 1961, Vol.72, 621-637. doi:https://doi.org/10.1130/0016-7606(1961)72[621:KHNFOM]2.0.CO;2
RUBIDIUM-STRONTIUM AGES OF SOME BASEMENT ROCKS FROM ARIZONA AND NORTHWESTERN MEXICO
GSA Bulletin April 01, 1961, Vol.72, 639-643. doi:https://doi.org/10.1130/0016-7606(1961)72[639:RAOSBR]2.0.CO;2
THE AMERICAN UPPER ORDOVICIAN STANDARD: V. A CRITICAL APPRAISAL OF THE CLASSIFICATION OF THE TYPICAL CINCINNATIAN BEDS
GSA Bulletin April 01, 1961, Vol.72, 645-647. doi:https://doi.org/10.1130/0016-7606(1961)72[645:TAUOS]2.0.CO;2
POTASSIUM-ARGON MEASUREMENTS ON THE PALISADES SILL, NEW JERSEY
GSA Bulletin April 01, 1961, Vol.72, 649-652. doi:https://doi.org/10.1130/0016-7606(1961)72[649:PMOTPS]2.0.CO;2
ANNUAL MEETING, NOVEMBER 1960
GSA Bulletin April 01, 1961, Vol.72, P1-P4. doi:https://doi.org/10.1130/0016-7606(1961)72[P1:AMN]2.0.CO;2