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oai:docta.ucm.es:20.500.14352/576242023-08-26T11:44:30Zcom_20.500.14352_14col_20.500.14352_15

Heat flows through the ice lithosphere of Europa Ruiz Pérez, Javier Tejero López, Rosa 523.45 Lithosphere Jupiter Europa Geodinámica 2507 Geofísica Someo f the geologicafle atureso n the surfaceo f Europa'si ce shells uggestth e existenceo f a brittlel ithosphereth ati n somer egionsis no moret han2 km thick.T he surfaceh eatf low neededt o put the brittle-ductiletr ansitionin ice at a deptho f 2 km is at -9 least• -100m W m -, muchh ighert hanp redictedb y tidal heatingm odelsf or a purely conductiviec e shell.A possiblee xplanationlie si n thep robablee xistenceo f a convective layerb eneathth eb rittlel ithospherew, hich,o wingt o tidald issipatioinn warmi ce,c ould contributteo higherh eatf lows.I f a convectives ubsurfaclea yera ndg rains ized ependent flow behavioor f ice area dmittedt,h eg rains izea t brittle-ductilter ansitiond epthc annotb e >1 mm, whichi s consistenwt ith ther equiredv aluef or the onseto f convectionin an ice shell thinner than 20 km. Depto. de Geodinámica, Estratigrafía y Paleontología Fac. de Ciencias Geológicas TRUE pub 2023-06-20T17:00:50Z 2023-06-20T17:00:50Z 2000 journal article https://hdl.handle.net/20.500.14352/57624 0148-0227 Paper number 1999JE001228 eng open access application/pdf American Geophysical Union