Name: LaPaz Icefield 02436 This is an OFFICIAL meteorite name. Abbreviation: LAP 02436 Observed fall: No Year found: 2002 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 59 g
Macroscopic Description: Kathleen McBride 50-90% of these lunar meteorite exteriors are covered with shiny, black, striated fusion crust. The interior has a granular texture with interconnected linear mineral grains, black, white and brown in color. There are criss-crossing fractures that are filled with black glass.
Thin Sections (,4; ,6; ,4) Description: Tim McCoy, Linda Welzenbach These sections consist of a coarse-grained unbrecciated basalt with elongate pyroxene (up to 0.5 mm) and plagioclase laths (up to 1 mm) (~60:40 px:plag), rare phenocrysts of olivine (up to 1 mm) and interstitial oxides and late-stage mesostasis. Shock effects include undulatory extinction in pyroxene and shock melt veins and pockets. Microprobe analyses reveal pigeonite to augite of Fs20-80Wo10-36, plagioclase is An85-90Or0-1 and a single olivine phenocryst is Fa35. The Fe/Mn ratio in the pyroxenes averages ~60. The meteorites are lunar olivine-bearing basalt. These are almost certainly paired with LAP 02205.
59 g
