I believe only Palisades trail and Eldridge grade had the very pale Zolatone, Eldridge has larger diameter top tube than Palisades (and weighs less), doubt anyone would hang such nice bits on a second-from-bottom-of-the-range Palisades, white Marin decal is strange as that is a Bear Valley trait, but I've never seen a BV (including the numerous examples I've personally owned) anywhere near this light grey so I'll say Eldridge, I had one that exact size and colour actually.
BTW is that a Marin sticker on the seat tube? If so what does it say?
1986 RM Ritchey "Canapurna", 1991 Marin Eldridge Grade, 1990? Vitus Futural CX, 1995 TREK Singletrack 950, 1996 Muddy Fox Monarch Team, 1997 DMR Trailstar, 1993 Pro-Flex 853, 2001 Santa Cruz Chameleon