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MORSE, S.A., (ed.). The Nain Anorthosite Project, Labrador : Field Report 1971.
Geology Department, University of Massachusetts, Amherst, MA, 1971, 1971
MORSE, S.A., (ed.). The Nain Anorthosite Project, Labrador : Field Report 1971. Amherst, Massachusetts : Contribution No. 9, Geology Department, University of Massachusetts, December 1971. Pp (6),1-102. Maps. Large 8vo (letter size, 8½ X 11 inches), printed blue illustrated cardcovers, plain spine.
Final Report under NSF Grants GA-21386 and GA-27134 to Franklin and Marshall College: "Evolution of Anorthosite and Related Crustal Rocks in Coastal Labrador11, and "Facility for Crustal Studies in Coastal Labrador."
Not in O'Dea.
Stearns A. Morse.
The miscellaneous topics covered in this report include Wheeler's giant pyroxine study and Morse's description of layered anorthosite, already mentioned. Upton describes a reconnaissance study of basic dikes in the region, which have importance for the characterization of late-stage volcanic and tectonic activity which may be correlated with that in Greenland. On another topic of regional interest, Morse documents the unconformity at the base of the Snyder group, a younger and distinctive meta-sedimentary - volcanic sequence resting on the Archean basement northwest of the Kiglapait intrusion. Xenoliths resembling these supracrustal rocks are described from a dike cutting the Barth Island troctolite body in de Ward's report. A small xenolith of apparently tonalitic gneiss, discovered by Berg in the Upper Zone of the Kiglapait intrusion, is discussed briefly by Morse in terms of its implications for anatexis by basic magmas in the Nain area. In a final part of the geological report, brief comments are offered on the petrographic methods used aboard R.V. Pitsiulak. The second half of this field report concerns operational details; it includes a narrative statement and comments on hydrography, weather, flying, subsistence, and other matters of operational importance. (pp. 6-7).
Description of Facility
Contents of Narrative Report :
Nain Area, July Discussion;
Kiglapait Area, July;
Lewisporte, June and July;
Lewisporte to Nain, 27-31 July;
Nain Area, August
Termination of field season;
Wintering of vessel.
Spine and edges slightly yellowed, name, else very good. 100.00
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