???????????????????????

??????????????????1????15????????????????????????????? (??????????? ?????)???????????????15????????????????(??)??????????????,?????????????,????????????????????,?????????,???????????

??«?????????????:??????????????????»(Journal of Geophysical Research: Planets)????(??????????????????)????????????????????

??????????????,??????????,?????????????,?????????????????????????????,?????????????,?????????

??,?????????????,????????????????????????????,?,??????

“????????????????????,?,???”???????????????????????

??????????????????????,??????,??(?????39????????10?????????),??????????????,???????????????????,????????32?????????????,??????

???????????????,???,??,??,????????(????????) ?????:???