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Heavy accessory minerals of the Val Verde tonalite

Wilson, Robert W. (1937) Heavy accessory minerals of the Val Verde tonalite. American Mineralogist, 22 (2). pp. 122-132. ISSN 0003-004X.

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Study of the heavy accessory minerals of igneous rocks by means of concentration of the heavy fractions is a fairly recent development in the field of petrology. Originally, work of this type was intended as a means of demonstrating the parent rock from which heavy minerals of various sedimentary deposits had been derived. In this direction, investigations have been of undoubted value. More recently, various workers have advocated the use of accessory minerals of igneous rocks as a means of correlation of igneous intrusions. In many cases their use has yielded results apparently of positive value. However, data on the precision of this type of correlation are still being gathered, and studies concerned with accessory minerals and their variation are of some importance at present.

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Additional Information:© 1937 Mineralogical Society of America. The author wishes to express sincere thanks to Dr. Ian Campbell of the California Institute of Technology for aid and encouragement during the progress of the investigation, and for a critical reading of the manuscript.
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Balch Graduate School of the Geological Sciences208
Issue or Number:2
Record Number:CaltechAUTHORS:20200224-153835603
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:101510
Deposited By: Tony Diaz
Deposited On:24 Feb 2020 23:53
Last Modified:24 Feb 2020 23:53

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