NOR flash is byte-addressable. It's usually used in applications where a CPU needs to execute code from it directly, like BIOS or boot ROM firmware.
NAND works in blocks somewhat like disks. So generally anything else, especially in memory card or storage device situations, is going to be NAND. Some NAND has a "Disk On Chip" mode where block 0 can be executed directly, but not any other blocks.
You could always open up the card and run any numbers on ICs you find within through Google to absolutely confirm.