Batches of apatite samples and zircons, collected from the international standard Fish Canyon Tuff (FCT) in San Juan Mountains, Colorado, USA, for fission-track dating method (FTDM
) were characterized using, x-ray diffraction, x-ray fluorescence, scanning electron microscopy of low and high vacuum with energy dispersive x-ray spectrometer, apatite FTDM
and thin section analysis.
Machinery, FACTS, Inc., Ferris State University, Finite Fiber, Firestone Polymers, Fort Wayne Mold & Engineering, Inc., Franklynn Industries Inc., French Oil Mill Machinery Co., FTDM
LLC, Glassven--Yangzhong Silicas and Chemicals J.V.