Here's an example:
Suddenly the great beast beat its hideous wings, and the wind of them was foul. Again it leaped into the air, and then swiftly fell down upon Éowyn, shrieking, striking with beak and claw.
Still she did not blench: maiden of the Rohirrim, child of kings, slender but as a steel-blade, fair but terrible. A swift stroke she dealt, skilled and deadly. The outstretched neck she clove asunder, and the hewn head fell like a stone. Backward she sprang as the huge shape crashed to ruin, vast wings outspread, crumpled on the earth; and with its fall the shadow passed away. A light fell about her, and her hair shone in the sunrise.
Out of the wreck rose the Black Rider, tall and threatening, towering above her. With a cry of hatred that stung the very ears like venom he let fall his mace. Her shield was shivered in many pieces, and her arm was broken; she stumbled to her knees. He bent over her like a cloud, and his eyes glittered; he raised his mace to kill.
Some of the names give away that this is from The Lord of the Rings. But you don't really need the names to recognize Tolkien's writing. Who else writes like that? You won't find anything of that flavor in Game of Thrones.