neyshabour turquoise mine is located in northwest of neyshabour, southern quchan volcanic belt. eocene andesite and dacite forming as lava and pyroclastic rocks cover most of the area. subvolcanic diorite to syenite porphyry (granitoids of magnetite series) intruded the volcanic rocks. both volcanic and subvolcanic rocks are highly altered. four types of alteration are recognized including: sil...

The adaptive and automated analysis of spectral data plays an important role in many areas of research such as physics, astronomy and geophysics, chemistry, bioinformatics, biochemistry, engineering, and others. The amount of data may range from several billion samples in geophysics to only a few in medical applications. Further, a vectorial representation of spectra typically leads to huge-dim...

1 , D. T. Blewett 2 , B. R. Hawke 3 , and N. C. Richmond 4 , 1 Dept. of Geology and Planetary Science, Univ. of Pittsburgh, Pittsburgh, PA 15260 USA, [email protected]; 2 NovaSol, 733 Bishop St., 28th Floor, Honolulu, HI 96813 USA, [email protected]; 3 Hawaii Inst. of Geophysics and Planetology, Univ. of Hawaii, Honolulu, HI 96822 USA; 4 Inst. of Geophysics and Planetary Physics, Scripps In...