Chronology and isotopic geochemistry of apollo 14 basalts and Skaergard Gabbro, Eastern Greenland

Details Chronology and isotopic geochemistry of apollo 14 basalts and Skaergard Gabbro, Eastern Greenland Chronology and isotopic geochemistry of apollo 14 basalts and Skaergard Gabbro, Eastern Greenland

Jul 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986asee.nasaq....d&link_type=abstract

In NASA. Johnson Space Center NASA/American Society for Engineering Education (ASEE) Summer Faculty Fellowship Program, 1985 6

Mathematics

Logic

Basalt, Chronology, Gabbro, Lunar Crust, Lunar Evolution, Lunar Maria, Lunar Rocks, Chemical Composition, Isotopic Labeling, Petrology, Rare Earth Elements, Strontium

Scientific paper

Work completed on Apollo 14 basalts has been published. The two dates obtained from these rocks comprised the oldest and two of the three oldest ages (4.1 and 4.3 billion years) known for lunar maria basalts; thus their ages are important in understanding the moon's earliest history. Owing to the antiquity of these rocks, two more fragments have been dated as part of a second ASEE/NASA SFF program. The new ages are 3.95 and 4.12 billion years, thus further establishing and amplifying the earlier results. This work, although perhaps more interesting for its chronologic information, was begun as a test of chemical and petrographic models. Fragments of Apollo basalt were placed into five categories, based on petrologic and chemical, especially rare-earth element, composition. Isotopic studies were begun in an attempt to determine if the five groups of basalts were related by age or initial isotopic composition (isotopic composition of lava at time of extrusion). Although a few of the representatives of the five groups have the same age and/or initial strontium-isotopic composition, within the analtytical uncertainties, most apparently are unrelated. Petrologic implications of these data will be published in an appropriate journal.

Affiliated with

Also associated with

No associations

Rating

Chronology and isotopic geochemistry of apollo 14 basalts and Skaergard Gabbro, Eastern Greenland does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Chronology and isotopic geochemistry of apollo 14 basalts and Skaergard Gabbro, Eastern Greenland, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chronology and isotopic geochemistry of apollo 14 basalts and Skaergard Gabbro, Eastern Greenland will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1654908