Abstract
Potassium-argon ages of sanidines, biotites, and basalts are found to be in essential agreement with time-sequential dating of Tertiary land mammals. A detailed time scale of the Tertiary based on an age breakdown is given.--H.C.W.S
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- References
- Interpretation of stratigraphical ages in orogenic belts
- Radiometric time-scale for geomagnetic reversals
- Pleistocene-Recent Boundary and Wisconsin Glacial Biostratigraphy in the Northern Indian Ocean
- Early Eocene Bat from Wyoming
- Geomagnetic Polarity Epochs: A New Polarity Event and the Age of the Brunhes-Matuyama Boundary
- The Biological Nature of Man
- The problems and contributions of methods of absolute dating within the Pleistocene period: PRESIDENTS ANNIVERSARY ADDRESS 1966
- Erosion-surfaces, tectonics and volcanic activity in Uganda
- The Pleistocene Epoch in Deep-Sea Sediments: A complete time scale dates the beginning of the first ice age at about 1frac12 million years ago
- Reversals of the Earth's Magnetic Field