本帖最后由 love20075 于 2014-6-29 17:37 编辑
有名字，你可以自己查。（这次我给你发，看下面，你给我说出个456，你不是能看懂吗？）最好你还能说出我发的是哪的图片？
Sample No.: EETA79006 Location: Elephant Moraine Field No.: 1042 Weight (gms): 716.4 Meteorite Type: Howardite Physical Description: Roberta Score Dull to shiny black fusion crust appears on only part of one surface on this achondrite. Many vugs are apparent, some of which have clasts in their interior. The medium gray matrix contains a variety of clasts (dark gray, yellow, white colored clasts), the largest being 1 cm in its longest dimension. Several rounded spots of oxidation are obvious and several cracks appear to penetrate the sample. Dimensions: 14 x 8.5 x 4.5 cm. Petrographic Description: Arch Reid The thin section shows a fine breccia with angular pyroxene and feldspar fragments and less common opaques. The larger pyroxene fragments up to 1 mm are commonly deformed and some show exsolution. There are a variety of clast types and these include the following: 1) small eucritic fragments with fine grain size, clasts up to 2 mm; 2) polymineralic pyroxene-feldspar intergrowths; 3) fragments of brown devitrified glass, up to 1 mm; 4) one fragment, 2 mm, with feldspar >> pyroxene; 5) one fragment, 2 mm, with pyroxene >> feldspar, and; 6) one 4.5 mm recrystallized eucrite clast with mosaic texture. Analysis of pyroxenes yields a wide range of compositions from Wo1En80Fs19 to Wo15En28Fs57. The meteorite contains a variety of clast types and a wide range of pyroxene compositions and is classed as a howardite. Origin or pseudonym:Main icefieldMass (g):716.4Class:Eu "pm"Weathering grade:BFerrosilite (mol%):19-57Comments:NTL=4.5±0.5; 79006 pairing group
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发表于 2014-6-20 07:56:39
发表于 2014-6-20 22:32:22