hodge- p odge in miranda
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Hodge-podge in Miranda
Profesor: Jose A. CaballeroVíctor Pereira Blanco
• General properties and description
• Miranda´s surface: hodge-podge
• Theories
Index
General properties and description
Miranda: Uranus VDiscovered by Gerard Kuiper in 1948Voyager 2 in 1986
Miranda´s surface: hodge-podge Theories
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000,13027.0240
dPPKT
trasrot 413.143
General properties and description Miranda´s surface: hodge-podge Theories
Voyager 2 image of Miranda taken shortly before closest approach. January 24, 1986. Range, 21,000 miles.
Craters, coronae, ridges,grooves, cliffs….
A patchwork of regions
General properties and description Miranda´s surface: hodge-podge Theories
This cliff is called "Verona Rupees" and is the deepest of any known cliff in the solar system,
between 10-20 KM high!
January 24, 1986. Range, 22,000 miles. Photo Credit NASA.
General properties and description Miranda´s surface: hodge-podge Theories
Along the edge of Miranda'sface, a wide band of ridges and grooves cut across the surface like a racetrack
January 24, 1986. Photo Credit NASA
General properties and description Miranda´s surface: hodge-podge Theories
A series of lighter and darker colours arranged in a V shape
Chevron
January 24, 1986. Photo Credit NASA
General properties and description
1. It was predicted that Miranda would be too small to show any signs of geological activity...
2. A collision broke it into icy and rocky pieces that then fell back together:denser rocky to the centre and ice remain in the surface. This friction would have warm the icy interior an created currents like a boiling soup.Currents would have compressed the crust.
Miranda´s surface: hodge-podge Theories
General properties and description
3. Diapirs: something rising up from below, in this case, warm ice.
a type of intrusion in which a more mobile and ductily-deformable material is forced into brittle overlying rocks
Destruction and re-assembly no longer necessary
Heat needed for explaining the shape of the surface: resonance in the past.And then...nothing. Work unfinished.
Miranda´s surface: hodge-podge Theories
FinThank you for your attention
References:
NASA´s Solar System Exploration site.Views of the Solar System: Mirnda, a Moon of Uranus.Surface of Miranda: Identification of Water IceHamilton Brown, R., Clark, R.N 1984Icar...58..288BCratering history of Miranda: Implications for geologic processes. Plescia, J.B. 1988Icar...73..442P
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