Hi Doc! I read your blog regarding the limestone sample from Pawod Cave. My initial guess is that the limestone belongs to Carcar Formation. This limestone formation fringes most of the coastal areas of Cebu. If my guess is right, it's age would range from Late Pliocene to Pleistocene, about 1.8 - 3 million years … Continue reading A LETTER FROM DES RE: PAWOD “ROCK”