Thermal history of a pebble in the Indus Molasse at the margin of a Himalayan metamorphic core complex
In this paper we report on data from a pebble within an upright fold in the Indus Molasse. The pebble was analysed microstructurally, white mica was separated, irradiated, and subject to40Ar/39Ar geochronology during a step-heating procedure in vacuo. Because of the care with which this procedure was followed, the apparent age spectra that resulted was a near perfect replica of what might be expected as the result of diffusional loss of argon from a fractal diffusion network. The earlier...[Show more]
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|Source:||Journal of the Virtual Explorer, Electronic Edition|
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