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HED meteorite : ウィキペディア英語版
HED meteorite

HED meteorites are a clan (subgroup) of achondrite meteorites. HED stands for "howarditeeucritediogenite".
These achondrites came from a differentiated parent body and experienced extensive igneous processing not much different from the magmatic rocks found on Earth and for this reason they closely resemble terrestrial igneous rocks.〔(All about Meteorites )〕
==Classification==
HED meteorites are broadly divided into:
* Howardites
* Eucrites
* Diogenites
Several subgroups of both eucrites and diogenites have been found.
The HED meteorites account for about 5% of all falls,〔(【引用サイトリンク】title=Meteoritical Bulletin Database )〕 which is about 60% of all achondrites.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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