chondrule

Thân thiện

A scientist examines a chondrule under a microscope.

Definition

Noun: A small, spherical granule, primarily composed of silicate minerals such as olivine or pyroxene, found embedded within certain types of stony meteorites known as chondrites.

Usage

The word "chondrule" is a scientific term used specifically in geology, planetary science, and astronomy. It refers to the distinct, rounded particles that are a primary component of chondritic meteorites. These objects are studied to understand the early solar system.

Examples

• Noun:
  • Under the microscope, the meteorite sample revealed numerous well-preserved chondrules.
  • Scientists analyze the chemical composition of a chondrule to determine its formation history.
  • The presence of chondrules is a key diagnostic feature for classifying a meteorite as a chondrite.

Advanced Usage

• "chondrule-bearing": Used as an adjective to describe meteorites or materials that contain chondrules.
  • The asteroid sample was confirmed to be chondrule-bearing, indicating its primitive nature.

Variants and Related Words

• Chondrite (n): The type of meteorite in which chondrules are found.
  • Carbonaceous chondrites are a particularly primitive class of meteorites.
• Chondritic (adj): Relating to or characteristic of chondrites.
  • The material had a chondritic composition.

Synonyms

• Granule: A small compact particle of a substance. (Note: "granule" is a more general term, while "chondrule" is specific to meteoritics.)
• Spherule: A small sphere. (Note: This is a morphological synonym but lacks the specific mineralogical and contextual meaning of "chondrule".)

Related Phrases/Idioms

This is a highly technical term with no common idiomatic or phrasal verb usage.

Học thuật

Noun

1. small granule (of e.g. chrysolite) found in some meteoric rocks