Murchison Comparison Table

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Next CM chondrite: ALH 84034 Up: CM chondrite, meteorite fall, S1 shock stage chondrite Previous CM chondrite: Mighei

Murchison comparison table

Subject has part mean Ni content of sulfide has weather resistance has part carbon has olivine shock metamorphism has part matrix has prototype is independent of has shock pressure has degree of aqueous alteration has matrix abundance has sediment mechanism has image has weather has distinguishing feature has degree of secondary process has part feldspar has metal abundance has refractory inclusion abundance has relative abundance has fragmentation probability has chondrule mean diameter has metamorphism mechanism has fall date have composition has fall description is a kind of has chondrule glass type has age has part sulfide Ni content has part maximum bulk Ni in metal has definition has number of find has petrologic type has part water has orthopyroxene shock metamorphism has plagioclase shock metamorphism has degree of shock metamorphism has abundance has peak temperature has shock diagnostic mineral has name be shock has fall location is an instance of has tenacity has shock stage has part metal maximum bulk has homogeneity of olivine and low Ca pyroxene has structural state of low Ca pyroxene has value has fall coordinate has olivine and low Ca pyroxene homogeneity has ablative mass loss has total mass of find has chondrule abundance has parent body has part chondrule has petrologic type range

CM chondrite in weight % low 0.8 to 2.6 % by weight mostly fine, opaque Mighei meteorite moderate 70 % by volume agglomeration of particles, many of which record individual, diverse histories elemental carbon providing insight into geological evolution of parent asteroid minor primary grains only 0.1 % by volume 5 % by volume 8 % of meteorite falls high because it is more friable than iron meteorite 0.3 millimeters aqueous altermation recorded by eyewitness or inferred from dating methods type 2 chondrite rare oldest and most primitive rock in solar system greater than 0.5 % by weight less than 20 % by weight; taenite minor or absent 36 2 2 to 16 % by weight rare relative to other chondrite types less than 950 degree Celsius during its entire history since solidification based on the locale, region, or nearby town in which the fall occurred strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity friable in weight % definition goes here predominantly monoclinic in degrees, minutes and seconds of lattitude and longitude greater than 5 % deviations high because it is more friable than iron meteorite 2577 kg 20 % by volume asteroid smaller than 100 km in diameter chondrules very sharply defined which depends on degree of aqueous alteration and thermal metamorphism

meteorite fall which depends on its composition negligible due to quick recovery of meteorite before corrosion begins during meteor phase which depends on composition recorded by eyewitness or instruments what witnesses saw or what was recorded by instruments meteorite a meteorite whose fall was witnessed by human or electronic means 1691 based on the locale, region, or nearby town in which the fall occurred strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity higher because the fall was witnessed in degrees, minutes and seconds of lattitude and longitude directly proportional to initial velocity 485755 kg

S1 shock stage chondrite in weight % which depends on its composition in weight % sharp optical extinction, irregular fractures fine grained disequilibrium mixture of silicates, oxides, metal, sulfides and organic constituents the nature and degree of thermal metamorphism or aqueous alteration less than 5 GPa in volume % agglomeration of particles, many of which record individual, diverse histories providing insight into geological evolution of parent asteroid usually plagioclase tectosilicate in volume % in volume % during meteor phase which depends on composition millimeters shock metamorphism recorded by eyewitness or inferred from dating methods S1 shock stage meteorite oldest and most primitive rock in solar system 1691 in weight % sharp optical extinction, irregular fractures sharp optical extinction, irregular fractures unshocked less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite based on the locale, region, or nearby town in which the fall occurred before, during or after other types of metamorphism strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity S1 in weight % definition goes here definition goes here in degrees, minutes and seconds of lattitude and longitude directly proportional to initial velocity 485755 kg in volume % asteroid smaller than 100 km in diameter small sphere of about 1 mm diameter of formerly melted minerals which depends on degree of aqueous alteration and thermal metamorphism

Murchison in weight % which depends on its composition 0.8 to 2.6 % by weight sharp optical extinction, irregular fractures mostly fine, opaque Mighei meteorite the nature and degree of thermal metamorphism or aqueous alteration less than 5 GPa moderate 70 % by volume agglomeration of particles, many of which record individual, diverse histories
negligible due to quick recovery of meteorite before corrosion begins elemental carbon providing insight into geological evolution of parent asteroid minor primary grains only 0.1 % by volume 5 % by volume during meteor phase which depends on composition 0.3 millimeters shock metamorphism September 28, 1969 10:45 am contain amino acids what witnesses saw or what was recorded by instruments rare oldest and most primitive rock in solar system greater than 0.5 % by weight less than 20 % by weight; taenite minor or absent 1691 2 2 to 16 % by weight sharp optical extinction, irregular fractures sharp optical extinction, irregular fractures unshocked rare relative to other chondrite types less than 950 degree Celsius during its entire history since solidification orthopyroxene for enstatite chondrite Murchison before, during or after other types of metamorphism Murchison, Victoria, Australia S1 shock stage chondrite friable S1 in weight % definition goes here predominantly monoclinic higher because the fall was witnessed 36° 37' S., 145° 12' E. greater than 5 % deviations directly proportional to initial velocity 485755 kg 20 % by volume asteroid smaller than 100 km in diameter chondrules very sharply defined which depends on degree of aqueous alteration and thermal metamorphism

Next CM chondrite: ALH 84034 Up: CM chondrite, meteorite fall, S1 shock stage chondrite Previous CM chondrite: Mighei

Subject	has part mean Ni content of sulfide	has weather resistance	has part carbon	has olivine shock metamorphism	has part matrix	has prototype	is independent of	has shock pressure	has degree of aqueous alteration	has matrix abundance	has sediment mechanism	has image	has weather	has distinguishing feature	has degree of secondary process	has part feldspar	has metal abundance	has refractory inclusion abundance	has relative abundance	has fragmentation probability	has chondrule mean diameter	has metamorphism mechanism	has fall date	have composition	has fall description	is a kind of	has chondrule glass type	has age	has part sulfide Ni content	has part maximum bulk Ni in metal	has definition	has number of find	has petrologic type	has part water	has orthopyroxene shock metamorphism	has plagioclase shock metamorphism	has degree of shock metamorphism	has abundance	has peak temperature	has shock diagnostic mineral	has name	be shock	has fall location	is an instance of	has tenacity	has shock stage	has part metal maximum bulk	has homogeneity of olivine and low Ca pyroxene	has structural state of low Ca pyroxene	has value	has fall coordinate	has olivine and low Ca pyroxene homogeneity	has ablative mass loss	has total mass of find	has chondrule abundance	has parent body	has part chondrule	has petrologic type range
CM chondrite	in weight %	low	0.8 to 2.6 % by weight		mostly fine, opaque	Mighei meteorite			moderate	70 % by volume	agglomeration of particles, many of which record individual, diverse histories			elemental carbon	providing insight into geological evolution of parent asteroid	minor primary grains only	0.1 % by volume	5 % by volume	8 % of meteorite falls	high because it is more friable than iron meteorite	0.3 millimeters	aqueous altermation	recorded by eyewitness or inferred from dating methods			type 2 chondrite	rare	oldest and most primitive rock in solar system	greater than 0.5 % by weight	less than 20 % by weight; taenite minor or absent		36	2	2 to 16 % by weight				rare relative to other chondrite types	less than 950 degree Celsius during its entire history since solidification		based on the locale, region, or nearby town in which the fall occurred		strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity		friable		in weight %	definition goes here	predominantly monoclinic		in degrees, minutes and seconds of lattitude and longitude	greater than 5 % deviations	high because it is more friable than iron meteorite	2577 kg	20 % by volume	asteroid smaller than 100 km in diameter	chondrules very sharply defined	which depends on degree of aqueous alteration and thermal metamorphism
meteorite fall		which depends on its composition											negligible due to quick recovery of meteorite before corrosion begins							during meteor phase which depends on composition			recorded by eyewitness or instruments		what witnesses saw or what was recorded by instruments	meteorite					a meteorite whose fall was witnessed by human or electronic means	1691									based on the locale, region, or nearby town in which the fall occurred		strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity							higher because the fall was witnessed	in degrees, minutes and seconds of lattitude and longitude		directly proportional to initial velocity	485755 kg
S1 shock stage chondrite	in weight %	which depends on its composition	in weight %	sharp optical extinction, irregular fractures	fine grained disequilibrium mixture of silicates, oxides, metal, sulfides and organic constituents		the nature and degree of thermal metamorphism or aqueous alteration	less than 5 GPa		in volume %	agglomeration of particles, many of which record individual, diverse histories				providing insight into geological evolution of parent asteroid	usually plagioclase tectosilicate	in volume %	in volume %		during meteor phase which depends on composition	millimeters	shock metamorphism	recorded by eyewitness or inferred from dating methods			S1 shock stage meteorite		oldest and most primitive rock in solar system				1691		in weight %	sharp optical extinction, irregular fractures	sharp optical extinction, irregular fractures	unshocked		less than 950 degree Celsius during its entire history since solidification	orthopyroxene for enstatite chondrite	based on the locale, region, or nearby town in which the fall occurred	before, during or after other types of metamorphism	strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity			S1	in weight %	definition goes here	definition goes here		in degrees, minutes and seconds of lattitude and longitude		directly proportional to initial velocity	485755 kg	in volume %	asteroid smaller than 100 km in diameter	small sphere of about 1 mm diameter of formerly melted minerals	which depends on degree of aqueous alteration and thermal metamorphism
Murchison	in weight %	which depends on its composition	0.8 to 2.6 % by weight	sharp optical extinction, irregular fractures	mostly fine, opaque	Mighei meteorite	the nature and degree of thermal metamorphism or aqueous alteration	less than 5 GPa	moderate	70 % by volume	agglomeration of particles, many of which record individual, diverse histories		negligible due to quick recovery of meteorite before corrosion begins	elemental carbon	providing insight into geological evolution of parent asteroid	minor primary grains only	0.1 % by volume	5 % by volume		during meteor phase which depends on composition	0.3 millimeters	shock metamorphism	September 28, 1969 10:45 am	contain amino acids	what witnesses saw or what was recorded by instruments		rare	oldest and most primitive rock in solar system	greater than 0.5 % by weight	less than 20 % by weight; taenite minor or absent		1691	2	2 to 16 % by weight	sharp optical extinction, irregular fractures	sharp optical extinction, irregular fractures	unshocked	rare relative to other chondrite types	less than 950 degree Celsius during its entire history since solidification	orthopyroxene for enstatite chondrite	Murchison	before, during or after other types of metamorphism	Murchison, Victoria, Australia	S1 shock stage chondrite	friable	S1	in weight %	definition goes here	predominantly monoclinic	higher because the fall was witnessed	36° 37' S., 145° 12' E.	greater than 5 % deviations	directly proportional to initial velocity	485755 kg	20 % by volume	asteroid smaller than 100 km in diameter	chondrules very sharply defined	which depends on degree of aqueous alteration and thermal metamorphism