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NH^+_4 in pegmatitic feldspars from the southern Black Hills, South Dakota

Solomon, G. Cleve and Rossman, George R. (1988) NH^+_4 in pegmatitic feldspars from the southern Black Hills, South Dakota. American Mineralogist, 73 (7-8). pp. 818-821. ISSN 0003-004X.

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Trace amounts of ammonium ion (0.7 mol% NH^+_4 substitution) have been identified from the infrared spectra of alkali feldspars from pegmatites occurring in the southern Black Hills district, South Dakota. The spectroscopic data indicate that the ammonium is structurally bound, most likely in the M site of the microcline. These results indicate that ammonium was likely a component of metamorphic fluids present during anatexis of metasedimentary rocks in the southern Black Hills district.

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Rossman, George R.0000-0002-4571-6884
Additional Information:© 1988 Mineralogical Society of America. Manuscript received April 29, 1987; Manuscript accepted February 29, 1988. Feldspar samples were provided by T. Giordano (New Mexico State University), and R. C. Erd (U S. Geological Survey). H. Taylor, Jr., provided the original impetus to study water and other hydrous species contained in feldspar. Helpful discussion of the manuscript was provided by S. P. Altaner. This research was supported in part by a CONOCO graduate fellowship and NSF Grants EAR 77-23147, EAR 83-13098, and EAR 86-18200.
Funding AgencyGrant Number
NSFEAR 77-23147
NSFEAR 83-13098
NSFEAR 86-18200
Issue or Number:7-8
Record Number:CaltechAUTHORS:20130412-135050599
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Official Citation: G. Cleve Solomon and George R. Rossman NH (super +) 4 in pegmatitic feldspars from the southern Black Hills, South Dakota American Mineralogist, August 1988, v. 73, p. 818-821
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:37916
Deposited By: Tony Diaz
Deposited On:16 Apr 2013 18:45
Last Modified:26 Nov 2019 11:15

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