In a small bowl, mix the orange juice and marmalade. Heat the butter and oil in a large skillet over medium heat. Season the pork chops with salt and pepper. Season with Garlic powder, if using.
Add the chops to the butter/oil and cook, turning once until cooked through. (aprox. 6 minutes). Transfer the chops to a platter and cover loosely with aluminum foil.
Pour off all but 3 Tablespoons of drippings from the skillet and add orange/marmalade mixture. Raise the heat to medium high and stir, scraping the tasty bits off the bottom, until sauce reduces and is slightly syrupy, 6 to 8 minutes. Return the chops to the pan, reduce the heat to medium and cook, turning the chops a few times in the sauce. Transfer the chops to serving platter and pour sauce over. Pour rest of the sauce into a serving bowl and serve along side the chops.