Remnants from the ancient lunar crust - Clasts from consortium breccia 73255

The paper examines analyses of clasts from consortium breccia 73255. It was shown that the basalts are high-alumina, and contain low, unfractionated abundances; the felsite is similar in major element composition and relative REE abundances to the felsites from 73215 and 12013; and the ANT materials are similar to the ANT clasts in other Apollo 17 breccias. Model calculations show that the pyroxene anorhosite has equilibrated with a very evolved liquid, and it is indicated that there was once a liquid with an evolved REE composition which was the parent of the pyroxene anorthosite.