Eucrites are achondritic stony meteorites, many of which originate from the surface of the asteroid 4 Vesta and are part of the HED meteorite clan. They are the most common achondrite group with over 100 meteorites found. Eucrites consist of basaltic rock from the …

Eucrite, rock that contains 30 to 35 percent calcium-rich plagioclase feldspar (bytownite or anorthite), as well as augite, hypersthene, pigeonite, and olivine. The name was given (1863) by Gustav Rose to stony meteorites of this composition (see achondrite), but it …

2013年7月8日 · Howardites are impact breccias, composed predominantly of eucrite and diogenite clasts. Rarer rock types include cumulate eucrites and olivine-bearing diogenites. This large and diverse suite of meteorites provides a detailed picture of Vesta's igneous and postigneous history.

古铜钙长无球粒陨石(howardite)、 钙长辉长无球粒陨石(eucrite) 和紫苏辉石无球粒陨石(diogenite) 合称HED无球粒陨石(取三个英文名称的第一- 个字母的缩写)，它们是来自第四号小行星一 灶神星 的样品， 已经在2011年被美国“黎明”号太空飞船的探测结果证实了。

2021年10月4日 · We report petrologic studies and oxygen isotope analyses of normal and anomalous eucrites, termed eucrite-type achondrites. Petrologically anomalous eucrite-type achondrites can have normal oxygen isotope compositions, and vice versa.

Classification: Eucrite (diabasic, unbrecciated). Specimens: 43 g including two polished thin sections at UWB; 51.7 kg (including a 35.9 kg mass) with DPitt and the remainder with anonymous collectors.

Eucrites are igneous meteorites that are characterized by subequal proportions of low-calcium pyroxene (pigeonite) and anorthitic plagioclase.

Eucrite is a type of rock found in Earth and Planetary Sciences that typically consists of major orthopyroxene or pigeonite, calcic plagioclase, and minor to accessory minerals like silica, chromite, and phosphate.

Eucrites (钙长辉长无球粒陨石) 钙长辉长无球粒陨石是以一个希腊单词命名的，意思是“容易辨别”。 尽管它们很容易与球粒陨石区分开来，但它们的外观特征与地球玄武岩非常相似。 实际上，钙长辉长无球粒陨石就是外星…

Eucrites are achondritic stony meteorites that originate from the surface of the asteroid 4 Vesta, and as such are part of the HED meteorite group. They are the most common achondrite group with well over 100 distinct finds at present. Eucrites consist of basaltic rock from the crust of 4 …