Spatial Chirp of Agate Bands

Agate bandwidths are analyzed and shown to consist of spatial chirps. It is shown that (a) bands are created by following an equal volume mode and (b) the spatial chirps are approximately spherical and concentrated at different “disturbance” locations in the individual agate sectors. Results indicat...

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Bibliographic Details
Published in:Minerals (Basel) 2019-10, Vol.9 (10), p.634
Main Authors: Goldbaum, Julia, Howard, Charles, Rabinovitch, Avinoam
Format: Article
Language:English
Subjects:
agate bands
Approximation
chirp fourier transforms
Computer simulation
Constants
Diagenesis
Diffusion
Fourier transforms
Frequency dependence
Mathematical models
Minerals
Parameter estimation
Pixels
Scientific imaging
spatial chirp
Spectrum allocation
Standard deviation
Thickness
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Summary:Agate bandwidths are analyzed and shown to consist of spatial chirps. It is shown that (a) bands are created by following an equal volume mode and (b) the spatial chirps are approximately spherical and concentrated at different “disturbance” locations in the individual agate sectors. Results indicate that the sequence of formation started with banding under a nonlinear process in a gel matrix and were secondarily deformed by external forces.
ISSN:2075-163X
2075-163X
DOI:10.3390/min9100634