DaG 638 Comparison Table

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rock > metamorphic rock > altered chondrite > thermally altered chondrite > type 4 chondrite > H4 chondrite > DaG 638

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DaG 638 comparison table

Subject has part mean Ni content of sulfide has weather resistance has part carbon has synonym has alteration temperature range has part matrix has acronym has matrix abundance has sediment mechanism has olivine composition has image has weather 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 weathering stage is a kind of has chondrule glass type has age has number of fragment has part sulfide Ni content has part maximum bulk Ni in metal has total iron content has number of find has petrologic type has find date has part water has degree of thermal metamorphism has iron metal and iron sulfide has mass has abundance has peak temperature has fall location is an instance of has pyroxene composition 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 metal iron content classified by has petrologic type range

Dar al Gani meteorite which depends on its composition DaG can be severe due to long exposure time to environmental corrosion agents during meteor phase which depends on composition Sahara meteorite 1691 when the meteorite was found Dar al Gani plateau, Libyan Sahara Desert lower because the fall was not witnessed in degrees, minutes and seconds of lattitude and longitude directly proportional to initial velocity 485755 kg

H4 chondrite in weight % low less than 0.2 % by weight bronzite chondrite the range over at which the alteration took place transparent, recrystallized, small crystals 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories providing insight into geological evolution of parent asteroid secondary, grains than 2 microns 10 % by volume 0.1 to 1 % by volume 85.7 % of meteorite falls high because it is more friable than iron meteorite 0.3 millimeters thermal metamorphism type 4 chondrite devitrified, absent oldest and most primitive rock in solar system less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship high 37 4 less than 1.5 % by weight weak 75 % of total iron most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity in weight % definition goes here greater than 20 % monoclinic in degrees, minutes and seconds of lattitude and longitude less than 5 % mean deviations high because it is more friable than iron meteorite 1251 kg 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules well defined 12 to 21 % which depends on degree of aqueous alteration and thermal metamorphism

DaG 638 in weight % which depends on its composition less than 0.2 % by weight bronzite chondrite the range over at which the alteration took place transparent, recrystallized, small crystals DaG 10 to 15 % by volume agglomeration of particles, many of which record individual, diverse histories Fa% 18.6
can be severe due to long exposure time to environmental corrosion agents providing insight into geological evolution of parent asteroid secondary, grains than 2 microns 10 % by volume 0.1 to 1 % by volume during meteor phase which depends on composition 0.3 millimeters thermal metamorphism W2 devitrified, absent oldest and most primitive rock in solar system 1 less than 0.5 % by weight greater than 20 % by weight, kamacite and taenite in exsolution relationship high 37 4 1998 less than 1.5 % by weight weak 75 % of total iron 8.170 kg most common chondrite observed from falls less than 950 degree Celsius during its entire history since solidification Dar al Gani plateau, Libyan Sahara Desert H4 chondrite Fs% 16.6 Wo%2.4 in weight % definition goes here greater than 20 % monoclinic lower because the fall was not witnessed 26° 57' N. 16° 9' E. less than 5 % mean deviations directly proportional to initial velocity 1251 kg 60 to 80 % by volume asteroid smaller than 100 km in diameter chondrules well defined 12 to 21 % A. Sexton, Open University, UK. Meteoritical Bulletin No 84 which depends on degree of aqueous alteration and thermal metamorphism

Next Dar al Gani meteorite: DaG 639 Up: Dar al Gani meteorite, H4 chondrite Previous Dar al Gani meteorite: DaG 636

Subject	has part mean Ni content of sulfide	has weather resistance	has part carbon	has synonym	has alteration temperature range	has part matrix	has acronym	has matrix abundance	has sediment mechanism	has olivine composition	has image	has weather	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 weathering stage	is a kind of	has chondrule glass type	has age	has number of fragment	has part sulfide Ni content	has part maximum bulk Ni in metal	has total iron content	has number of find	has petrologic type	has find date	has part water	has degree of thermal metamorphism	has iron metal and iron sulfide	has mass	has abundance	has peak temperature	has fall location	is an instance of	has pyroxene composition	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 metal iron content	classified by	has petrologic type range
Dar al Gani meteorite		which depends on its composition					DaG					can be severe due to long exposure time to environmental corrosion agents						during meteor phase which depends on composition				Sahara meteorite							1691		when the meteorite was found							Dar al Gani plateau, Libyan Sahara Desert						lower because the fall was not witnessed	in degrees, minutes and seconds of lattitude and longitude		directly proportional to initial velocity	485755 kg
H4 chondrite	in weight %	low	less than 0.2 % by weight	bronzite chondrite	the range over at which the alteration took place	transparent, recrystallized, small crystals		10 to 15 % by volume	agglomeration of particles, many of which record individual, diverse histories				providing insight into geological evolution of parent asteroid	secondary, grains than 2 microns	10 % by volume	0.1 to 1 % by volume	85.7 % of meteorite falls	high because it is more friable than iron meteorite	0.3 millimeters	thermal metamorphism		type 4 chondrite	devitrified, absent	oldest and most primitive rock in solar system		less than 0.5 % by weight	greater than 20 % by weight, kamacite and taenite in exsolution relationship	high	37	4		less than 1.5 % by weight	weak	75 % of total iron		most common chondrite observed from falls	less than 950 degree Celsius during its entire history since solidification	strewn fields, elongated footprints which depends on impact angle, airbursts, and impact velocity			in weight %	definition goes here	greater than 20 % monoclinic		in degrees, minutes and seconds of lattitude and longitude	less than 5 % mean deviations	high because it is more friable than iron meteorite	1251 kg	60 to 80 % by volume	asteroid smaller than 100 km in diameter	chondrules well defined	12 to 21 %		which depends on degree of aqueous alteration and thermal metamorphism
DaG 638	in weight %	which depends on its composition	less than 0.2 % by weight	bronzite chondrite	the range over at which the alteration took place	transparent, recrystallized, small crystals	DaG	10 to 15 % by volume	agglomeration of particles, many of which record individual, diverse histories	Fa% 18.6		can be severe due to long exposure time to environmental corrosion agents	providing insight into geological evolution of parent asteroid	secondary, grains than 2 microns	10 % by volume	0.1 to 1 % by volume		during meteor phase which depends on composition	0.3 millimeters	thermal metamorphism	W2		devitrified, absent	oldest and most primitive rock in solar system	1	less than 0.5 % by weight	greater than 20 % by weight, kamacite and taenite in exsolution relationship	high	37	4	1998	less than 1.5 % by weight	weak	75 % of total iron	8.170 kg	most common chondrite observed from falls	less than 950 degree Celsius during its entire history since solidification	Dar al Gani plateau, Libyan Sahara Desert	H4 chondrite	Fs% 16.6 Wo%2.4	in weight %	definition goes here	greater than 20 % monoclinic	lower because the fall was not witnessed	26° 57' N. 16° 9' E.	less than 5 % mean deviations	directly proportional to initial velocity	1251 kg	60 to 80 % by volume	asteroid smaller than 100 km in diameter	chondrules well defined	12 to 21 %	A. Sexton, Open University, UK. Meteoritical Bulletin No 84	which depends on degree of aqueous alteration and thermal metamorphism