Diogenites are a group of the HED meteorite clan, a type of achondritic stony meteorites. Diogenites are currently believed to originate from deep within the crust of the asteroid 4 Vesta, and as such are part of the HED meteorite clan. There are about 40 distinct members known.

Diogenites are an abundant type of achondrite, linked by geochemical traits such as oxygen isotopic ratios and certain elemental ratios, of which Fe/Mn is the most widely cited. The dominant mineral in diogenites is orthopyroxene.

HED meteorites are a clan (subgroup) of achondrite meteorites. HED stands for " howardite – eucrite – diogenite ". 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. [1]

2011年12月4日 · The HED (howardite, eucrite and diogenite) meteorites are a large group of meteorites believed to originate from Vesta, a hypothesis that is consistent with current Dawn observations. The diogenites originated deep within the crust of Vesta and resemble rocks, both in texture and composition, which we find in the lower crust of the Earth.

diogenite (HED) meteorites all came from the same asteroidal body, Vesta, the second largest member of the asteroid belt. They have also been linked to the mesosiderites, a group of stony iron meteorites ( see below Association of meteorites with asteroids).

2024年8月14日 · Our study finds Zn isotopic anomalies in diogenites overlapping with noncarbonaceous reservoirs, indicating negligible contributions of outer solar system materials to 4-Vesta’s volatiles. Besides, zinc isotopic composition of 4-Vesta is lighter than that of chondrites, contrary to the expected signature of evaporation-based volatile depletion.

The meaning of DIOGENITE is an achondritic meteorite composed essentially of orthorhombic pyroxene.

A diogenite is a type of coarse-grained rock composed predominantly of orthopyroxene, with minor amounts of olivine, chromite, Ca-pyroxene, plagioclase, silica, low-Ni metallic Fe, and troilite. It is formed from a Ca-poor, pyroxene-normative melt and is …

2019年8月1日 · Here, we investigate the plausible mechanisms that could produce the observed compositional trends in diogenites using the thermodynamic software pMELTS (Ghiorso et al., 2002) to model crystallisation paths over a range of conditions and variables.

Looking for diogenite? Find out information about diogenite. An achondritic stony meteorite composed essentially of iron-rich pyroxene minerals. Also known as rodite. McGraw-Hill Dictionary of Scientific & Technical... Explanation of diogenite