Why Moldavites are ReducedMoldavite tektites are colored a bright bottle green by reduced Fe, despite the originating sediments being completely oxidized. The high temperature processing of silicates often results in very reduced products, such as Si-bearing Fe metal in type-1 chondrules , lunar regolith agglutinates , and multiple Si-Fe metal phases in fulgurites [3,4]. Previous work on silicate reduction has often focused on the need for reducing agents such as carbon or hydrogen; we show that for a moldavite composition these are not necessary. The isentropic cooling path is inherently reducing.
Sheffer, A. (Arizona Univ. Tucson, AZ, United States)
Melosh, H. J. (Arizona Univ. Tucson, AZ, United States)
September 7, 2013
January 1, 2005
Publication: Lunar and Planetary Science XXXVI, Part 18