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 …

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) …

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. …

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 …

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, …

2003年5月15日 · Eucrites are basaltic, igneous rocks from a differentiated asteroid, quite possibly 4 Vesta (see Drake, 2001). Basalts have compositions determined by the compositions of their …

Physical characteristics: Fresh stones coated by black fusion crust with numerous anastomozing ridges. Interiors are notable for the bright internal reflections within vitreous plagioclase laths …

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 …

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

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 …