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rock > meteorite > achondrite > primitive achondrite > winonaite > Tierra Blanca

Tierra Blanca
subject			fact

Tierra Blanca	has image
	is an instance of winonaite
	is an instance of meteorite find
	has name Tierra Blanca
	has find date before 1965
	has fall coordinates 34° 56' N., 102° 01' W.
	has fall location Tierra Blanca Creek 10 km SW of Canyon, Texas
	has mass 0.860 kg
winonaite	has composition IAB-silica related
	has inclusion minerology troilite, metal, daubreilite, schreibersite, graphite
	has prototype Winona meteorite
meteorite find	has value lower because the fall was not witnessed
	has weathering can be severe due to long exposure time to environmental corrosion agents
primitive achondrite	has minerology olivine, orthopyroxene, clinopyroxene, metal with some troilite and some sodic plagioclase
	has petrology fine- to coarse-grained equigranular
	has likely origin ultrametamorphism, partial melting with some melt migration
meteorite	has fall date recorded by eyewitness or inferred from dating methods
	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 relative abundance
	has total mass of finds 485755 kg
	has number of finds 1691
	has impact velocity when it hits the ground which is smaller than its velocity before it enters the atmosphere
	has impact angle
	has weather resistance which depends on its composition
	has monetary value large if the fall was witnessed
	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
	has ablative mass loss depending on composition, more friable stony meteoroids loses more mass than iron meteoroid
	has ablative mass loss directly proportional to initial velocity
	can shatter during impact phase
	can fragment during meteor phase
	has fragmentation probability during meteor phase which depends on composition
achondrite	has distinguishing feature no chondrules
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
conglomerate	has sediment mechanism agglomeration of particles, many of which record individual, diverse histories

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