LL6 chondrite | is a kind of LL chondrite |  |
is a kind of type 6 chondrite |  |
has total mass of finds 715 kg |  |
has number of finds 20 |  |
LL chondrite | has synonym amphoterite |  |
has composition bronzite, olivine and minor oligoclase |  |
has chondrule abundance 60 to 80 % by volume |  |
has matrix abundance 10 to 15 % by volume |  |
has refractory inclusion abundance 0.1 to 1 % by volume |  |
has metal abundance 2 % by volume |  |
has chondrule mean diameter 0.9 millimeters |  |
has total iron content low |  |
has metal iron content about 2 % |  |
has iron metal and iron sulfide 20 % of total iron |  |
type 6 chondrite | has petrologic type 6 |  |
has degree of thermal metamorphism strong |  |
has olivine and low Ca pyroxene homogeneity homogeneous |  |
has structural state of low Ca pyroxene orthorhombic |  |
has chondrule glass type devitrified, absent |  |
has part feldspar secondary, grains greater than 50 microns |  |
has part maximum bulk Ni in metal greater than 20 % by weight, kamacite and taenite in exsolution relationship |  |
has part sulfide Ni content less than 0.5 % by weight |  |
has part matrix transparent, recrystallized, coarse crystals |  |
has part chondrule chondrules poorly defined |  |
has part carbon less than 0.2 % by weight |  |
has part water less than 1.5 % by weight |  |
ordinary chondrite | has abundance most common chondrite observed from falls |  |
thermally altered chondrite | has metamorphism mechanism thermal metamorphism |  |
has alteration temperature range the range over at which the alteration took place |  |
altered chondrite | has degree of secondary processing providing insight into geological evolution of parent asteroid |  |
chondrite | has petrologic type range which depends on degree of aqueous alteration and thermal metamorphism |  |
has relative abundance 85.7 % of meteorite falls |  |
has homogeneity of olivine and low Ca pyroxene definition goes here |  |
has part metal maximum bulk in weight % |  |
has part mean Ni content of sulfides in weight % |  |
stony meteorite | has weather resistance low |  |
has fragmentation probability high because it is more friable than iron meteorite |  |
has ablative mass loss high because it is more friable than iron meteorite |  |
undifferentiated meteorite | has peak temperature less than 950 degree Celsius during its entire history since solidification |  |
has parent body asteroid smaller than 100 km in diameter |  |
has age oldest and most primitive rock in solar system |  |
rock | has part mineral |  |
has texture |  |
has genesis |  |
meteorite | has fall date recorded by eyewitness or inferred from dating methods |  |
has fall location strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity |  |
has fall coordinates in degrees, minutes and seconds of lattitude and longitude |  |
has fall map which appears as an elongated footprint which depends on impact angle, airbursts, and impact velocity |  |
can have crater image |  |
has original mass which can over an order of magnitude greater than total mass of fragment(s) collected at the impact site |  |
has impact velocity when it hits the ground which is smaller than its velocity before it enters the atmosphere |  |
has impact angle |  |
has monetary value large if the fall was witnessed |  |
has name based on the locale, region, or nearby town in which the fall occurred |  |
often produce power outages and failures in electrical equipment due to EMP (electromagnetic pulse) |  |
can be associated with crater |  |
has origin meteoroid from interplanetary space or fragment dislodged from another planet, moon or planetesimal |  |
vaporizes completely if size is between 3 micrometers and 3 millimeters |  |
can survive fall if size is larger than 3 mm and velocity is less than 24 km per second |  |
can survive fall if it fragments because smaller pieces with less mass are more easily slowed by the atmosphere |  |
can shatter during impact phase |  |
can fragment during meteor phase |  |
conglomerate | has sediment mechanism agglomeration of particles, many of which record individual, diverse histories |  |