term
stringlengths 1
63
⌀ | category
stringclasses 15
values | label
int64 0
1
| definition
stringlengths 5
3.18k
⌀ |
|---|---|---|---|
basaltic achondrite | Space and Astronomy | 1 | a grouping of basalt meteorites ( HED meteorites + Angrite ) |
brachinite | Space and Astronomy | 1 | either a primitive achondrite or an asteroidal achondrite |
bolide | Space and Astronomy | 1 | is an extremely bright meteor, especially one that explodes in the atmosphere |
c | Space and Astronomy | 1 | can refer to carbonaceous chondrite or to an iron meteorite designation (Roman numeral and letter). |
cai | Space and Astronomy | 1 | an abbreviation of calcium–aluminium-rich inclusion |
chondrite | Space and Astronomy | 1 | stony meteorites unmodified by melting or differentiation of the parent body |
chondrule | Space and Astronomy | 1 | millimetre-scale round grains found in chondrites |
clan | Space and Astronomy | 1 | meteorites that are not similar enough to form a group, but are also not too different from each other to be put in separate classes. |
class | Space and Astronomy | 1 | two or more groups that have a similar chemistry and oxygen isotope ratios. |
compositional type | Space and Astronomy | 1 | a classification based on overall composition, for example stony, iron, stony-iron (as introduced by Maskelyne). Can also refer to the composition deduced from spectroscopy of asteroids. |
condensation | Space and Astronomy | 1 | the process of chemicals changing from the gaseous to the solid phase during the cooling of the protoplanetary disk . |
condensation sequence | Space and Astronomy | 1 | the sequence of minerals that changes from the gaseous to the solid state while the protoplanetary disk cools. |
cosmic dust | Space and Astronomy | 1 | small interplanetary and interstellar particles that are similar to meteorites (See Micrometeorite ). |
cosmochemistry | Space and Astronomy | 1 | the study of the chemical composition of the universe and its constituents, and the processes that produced those compositions. |
dar al gani | Space and Astronomy | 1 | a meteorite field in the Libyan Sahara. |
desert glass | Space and Astronomy | 1 | natural glass found in deserts formed from the silica in sand as a result of lightning strikes or meteor impacts. |
differentiated | Space and Astronomy | 1 | a meteorite that has undergone igneous differentiation . (See: achondrite ) |
differentiation | Space and Astronomy | 1 | usually the process of a planetesimal forming an iron core and silicate mantle. |
duo | Space and Astronomy | 1 | a grouping of two meteorites that share similar characteristics (see Grouplet). |
e | Space and Astronomy | 1 | can refer to enstatite chondrite or to an iron meteorite designation (Roman numeral and letter). |
eagle station grouplet | Space and Astronomy | 1 | a set of pallasite meteorite specimen that do not fit into any of the defined pallasite groups. |
electrophonic bolide | Space and Astronomy | 1 | a meteoroid which produces a measurable discharge of electromagnetic energy ( EMP ) during its passage through the atmosphere. |
enstatite achondrite | Space and Astronomy | 1 | a meteorite that is mostly composed of enstatite . Usually part of the aubrite group. |
enstatite chondrite | Space and Astronomy | 1 | a rare form of meteorite thought to comprise only 2% of chondrites. |
fall | Space and Astronomy | 1 | a meteorite that was seen while it fell to Earth and found. |
find | Space and Astronomy | 1 | a meteorite that was found without seeing it fall. |
fossil meteorite | Space and Astronomy | 1 | a meteorite that was buried under layers of sediment before the start of the Quaternary period . Some or all of the original cosmic material has been replaced by diagenetic minerals. : 320 (It is, however, not a fossil ). |
fusion crust | Space and Astronomy | 1 | a coating on meteorites that forms during their passage through the atmosphere. |
group | Space and Astronomy | 1 | a collection of five or more meteorites sharing similar characteristics. |
grouplet | Space and Astronomy | 1 | a collection of fewer than five meteorites sharing similar characteristics. |
hammer stone | Space and Astronomy | 1 | a specific individual meteorite that has hit either a human, man-made object, and/or an animal. |
hed | Space and Astronomy | 1 | abbreviation for three basaltic achondrite groups howardite , eucrite and diogenite . |
hed meteorite | Space and Astronomy | 1 | a clan of basaltic achondrites. |
hexahedrite | Space and Astronomy | 1 | a structural class of iron meteorites having a relatively low nickel content |
hunter | Space and Astronomy | 1 | a person who searches for meteorites. |
impact breccia | Space and Astronomy | 1 | rock composed of fragments of terrestrial, extraterrestrial or mixed origin fused by the energy of impact |
impactite | Space and Astronomy | 1 | informal term for a terrestrial rock resulting from the shocking impact of a meteor. |
iron–nickel alloy | Space and Astronomy | 1 | an alternative expression for meteoric iron. |
iron meteorite | Space and Astronomy | 1 | a meteorite that is mainly composed of meteoric iron . |
kakangari chondrite | Space and Astronomy | 1 | a group of chondrite meteorites. |
kamacite | Space and Astronomy | 1 | a native metal (mineral) found in meteorites. |
lodranite | Space and Astronomy | 1 | member of a small group of primitive achondrites thought to derive from deeper within the same parent body as acapulcoites |
lunaite | Space and Astronomy | 1 | a meteorite that originated from the Moon (synonym of Lunar meteorite ). Compare Category:Meteorites found on bodies other than Earth . |
lunar meteorite | Space and Astronomy | 1 | a meteorite that originated from the Moon (synonym of Lunaite ). Compare Category:Meteorites found on bodies other than Earth . |
main group pallasite | Space and Astronomy | 1 | a pallasite belonging to the main group. |
main mass | Space and Astronomy | 1 | the largest/heaviest piece of a fragmented meteorite, typically found in a strewn field . |
martian meteorite | Space and Astronomy | 1 | a meteorite that originated from Mars. Compare Category:Meteorites found on bodies other than Earth . |
maskelynite | Space and Astronomy | 1 | a natural glass found in meteorites. |
matrix | Space and Astronomy | 1 | the mineral assemblage surrounding chondrules. |
mesosiderite | Space and Astronomy | 1 | a grouping of stony-iron meteorite that are breccias. |
meteoric iron | Space and Astronomy | 1 | a native metal found in meteorites and a mixture of different mineral phases. Compare telluric iron . |
meteorite observation and recovery program | Space and Astronomy | 1 | a scientific program that was centered in Canada. |
meteoriticist | Space and Astronomy | 1 | a scientist working on meteorites, meteors, and meteoroids. |
meteoritics | Space and Astronomy | 1 | the science of meteorites, meteors, and meteoroids. |
morp | Space and Astronomy | 1 | abbreviation for Meteorite Observation and Recovery Program . |
micrometeorite | Space and Astronomy | 1 | microscopic meteorites derived from Cosmic dust . |
nakhlite | Space and Astronomy | 1 | a group of Martian meteorites |
neumann lines | Space and Astronomy | 1 | (or Neumann bands) – a pattern of fine parallel lines seen in some iron meteorites, thought to be due to impact events on the parent body |
nonmagmatic meteorite | Space and Astronomy | 1 | (deprecated) iron meteorites that were thought to have not formed by igneous processes. |
o | Space and Astronomy | 1 | usually refers to ordinary chondrite |
observed fall | Space and Astronomy | 1 | a meteorite that was seen when it fell to Earth. |
octahedrite | Space and Astronomy | 1 | the most common structural class of iron meteorites. |
ordinary chondrite | Space and Astronomy | 1 | a chondrite meteorite, where 'ordinary' means that it is the most common found |
pac | Space and Astronomy | 1 | abbreviation for primitive achondrite. |
pallasite | Space and Astronomy | 1 | a class of stony–iron meteorite. |
panspermia | Space and Astronomy | 1 | the hypothesis that life could reach other planets by the means of meteorites and/or comets. |
parent body | Space and Astronomy | 1 | the celestial body from which originates a meteorite or a class of meteorites. |
petrologic type | Space and Astronomy | 1 | a classification scheme that expresses the degree to which a meteorite has been affected by the secondary processes of thermal metamorphism and aqueous alteration on the parent asteroid. |
pitts grouplet | Space and Astronomy | 1 | a grouplet of meteorites that is part of the IAB meteorites . |
planetary achondrite | Space and Astronomy | 1 | an achondrite that was differentiated on a planet and not a planetesimal or asteroid (See asteroidal achondrite ). |
plessite | Space and Astronomy | 1 | a fine grained intergrowth found in meteoric iron consisting of kamacite , taenite and tetrataenite lamella. |
presolar grains | Space and Astronomy | 1 | interstellar solid matter in the form of tiny solid grains from a time before the Sun was formed. |
primitive achondrite | Space and Astronomy | 1 | a meteorite that has similarities to achondrites and chondrites. |
protoplanetary disk | Space and Astronomy | 1 | a circumstellar disk from which all solids in the Solar System formed. |
regmaglypts | Space and Astronomy | 1 | thumbprint-sized indentations in the surface of larger meteorites formed by ablation as the meteorite passes through a planet's atmosphere , probably caused by vortices of hot gas. |
rose-tschermak-brezina classification | Space and Astronomy | 1 | a classification developed by Gustav Rose , Gustav Tschermak and Aristides Brezina . |
rumuruti chondrite | Space and Astronomy | 1 | a group of chondrites. |
shergottite | Space and Astronomy | 1 | igneous rocks of mafic to ultramafic lithology, named after a meteorite that fell at Sherghati, India in 1865. |
shock stage | Space and Astronomy | 1 | a measure of the degree of fracturing of the matrix of a common chondrite meteorite. |
shock metamorphism | Space and Astronomy | 1 | the effects of shock-wave related deformation and heating during impact events. |
siderite | Space and Astronomy | 1 | the old term for iron meteorite . |
siderolite | Space and Astronomy | 1 | the old term for stony-iron meteorites . |
snc | Space and Astronomy | 1 | abbreviation for shergottite , nakhlite and chassignite , the three main types of Martian meteorite. |
solar nebula | Space and Astronomy | 1 | a synonym of the protoplanetary disk . |
stony meteorite | Space and Astronomy | 1 | a meteorite composed mostly of silicates . |
stony-iron meteorite | Space and Astronomy | 1 | a meteorite that is a mixture of meteoric iron and silicates . |
strewn field | Space and Astronomy | 1 | a field of fragments from one meteorite fall. |
structural class | Space and Astronomy | 1 | a subdivision of iron meteorites in ataxites , hexahedrites and octahedrites . |
superbolide | Space and Astronomy | 1 | is a bolide that reaches an apparent magnitude of −17 or brighter, which is roughly 100 times brighter than the full moon. Recent examples of superbolides include the Sutter's Mill meteorite and the Chelyabinsk meteor. |
taenite | Space and Astronomy | 1 | a native metal (mineral) found in meteorites. |
tamdakht | Space and Astronomy | 1 | a meteorite that fell near Ouarzazate, Morocco on 2008-12-20 producing a strewn field of approximately 25 km (16 mi) by 2 km (1.2 mi) and two small impact craters. |
tektite | Space and Astronomy | 1 | glassy terrestrial debris created by meteorite impacts. |
thumbprinting | Space and Astronomy | 1 | see regmaglypts |
total known weight | Space and Astronomy | 1 | (TKW) – total known mass of a meteorite. |
trio | Space and Astronomy | 1 | a grouping of three meteorites that share similar characteristics (see Grouplet). |
type | Space and Astronomy | 1 | subdivision of meteorites. Loosely defined. Usually refers to chondrite , achondrite and sometimes primitive achondrite . |
udei station grouplet | Space and Astronomy | 1 | a grouplet of meteorites that is part of the IAB meteorites . |
ungrouped | Space and Astronomy | 1 | a meteorite that has not been assigned to a group or grouplet. |
vesta | Space and Astronomy | 1 | second largest asteroid in the asteroid belt and likely source of the HED meteorites . |
volatile elements | Space and Astronomy | 1 | are chemical elements that have low boiling and condensation temperatures. |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.