Nitrogen in lunar igneous rocks

Details Nitrogen in lunar igneous rocks Nitrogen in lunar igneous rocks

Apr 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976lpsc....7.1615m&link_type=abstract

In: Lunar Science Conference, 7th, Houston, Tex., March 15-19, 1976, Proceedings. Volume 2. (A77-34651 15-91) New York, Pergamon

Computer Science

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Igneous Rocks, Lunar Composition, Lunar Rocks, Nitrogen, Apollo 14 Flight, Apollo 15 Flight, Chemical Composition, Gas Analysis, Kjeldahl Method

Scientific paper

Bound nitrogen contents have been determined in six lunar igneous rocks from different landing sites, one Apollo 14 clastic rock, two Apollo 15 soil samples, and in standard rocks diabase W-1 and granite G-2 using the optimized, program-controlled Kjeldahl method. This technique is superior to the previously applied conventional Kjeldahl technique with respect to sensitivity and reproducibility for nitrogen analysis. Most of the lunar igneous rocks analyzed in this work are quite uniform and low in bound nitrogen contents; the range is only about 3-5 ppm N for samples of various types. The small nitrogen contents of the rocks imply that indigenous nitrogen and/or ammonia were at very low concentrations at the time of mineral and rock formation in the early history of the moon. For some lunar rocks there exists a large discrepancy for nitrogen data determined by different methods

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