南极HED陨石_EET 79006 Eucrite (Polymict)
给灶王爷磕头！ love20075 发表于 2014-6-20 07:59
是南极HED陨石请把检测数据给学生们看看，最好是做切片的电子探针检测数据。学生们一看就懂。不要拿什么石头都打着南极陨石。直说。
本帖最后由 love20075 于 2014-6-29 17:37 编辑
阿星 发表于 2014-6-29 17:27
是南极HED陨石请把检测数据给学生们看看，最好是做切片的电子探针检测数据。学生们一看就懂 ...
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.: EETA79006Location: Elephant MoraineField No.: 1042Weight (gms): 716.4Meteorite Type: Howardite Physical Description: Roberta ScoreDull 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 ReidThe 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
love20075 发表于 2014-6-29 17:32
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 ...
样品没有。:EETA79006
地点:象冰碛
场没有。:1042
重量(gms):716.4
陨石类型:Howardite
物理描述:罗伯塔得分
无聊的闪亮的黑色聚变地壳只出现在一个表面的一部分在这个无球粒陨石。许多岩穴是显而易见的,其中一些有clasts内部。中灰色矩阵包含各种clasts(灰黑、黄、白色彩色clasts),最长最大的是1厘米的迪
页:
[1]
2
