. Additional notes on the Grinnell ice-cap. Ice -- Nunavut Baffin Island. 110 Field Museum of Natural History—Geology, Vol. VII clear cut and lack the characteristic hatched pattern of transfor- mation figures. Schreibersite in large forms has not been recognized. The matrix of the section, however, is pitted with numerous, small, grayish-black specks that are depressed and angular. These specks. Fig. 44. The lines at the left resemble Neumann lines. They may be trans- formation figures. XlO. might have been filled originally with schreibersite particles that were pulled out in the process of


. Additional notes on the Grinnell ice-cap. Ice -- Nunavut Baffin Island. 110 Field Museum of Natural History—Geology, Vol. VII clear cut and lack the characteristic hatched pattern of transfor- mation figures. Schreibersite in large forms has not been recognized. The matrix of the section, however, is pitted with numerous, small, grayish-black specks that are depressed and angular. These specks. Fig. 44. The lines at the left resemble Neumann lines. They may be trans- formation figures. XlO. might have been filled originally with schreibersite particles that were pulled out in the process of grinding and polishing the section. A careful examination of the specks over a large area, however, failed to show any trace of phosphide inclusions. No other accessory constituents have been observed. REFERENCES Coulton, F. Barrows 1939. News of the Universe. Nat. Geog. Mag., 76, No. 1, pp. 1-32. Henderson, E. P. 1941. Methods of Determining Nickel and Cobalt in Meteoritic Iron. Amer. Jour. Sci., 239, pp. 372, 376. Hillebrand, W. F. and Lundell, G. E. F. 1929. Applied Inorganic Analysis, p. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Roy, Sharat Kumar, 1897-1962. Chicago : Field Museum of Natural History


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