Combine the pecans, flour, baking powder, baking soda, salt, cinnamon, ginger and granulated sugar in a large bowl. In another bowl, whisk the vegetable oil, lemon zest, eggs and 1/2 cup marmalade. Stir in the carrots, then fold the carrot mixture into the flour mixture until just combined. Divide among the prepared pans and spread evenly (it won’t look like a lot of batter, but the cakes will rise in the oven). Put 2 pans on the upper oven rack and the third pan on the lower rack. Bake until the cakes bounce back when touched and a toothpick comes out clean, 20 to 25 minutes, switching the position of the pans halfway through. Transfer the pans to racks until cool enough to handle, then invert the cakes onto the racks to cool completely. Remove the parchment.