Closure of Göbekli Tepe: Erosion?

With the discovery of Göbekli Tepe, Urfa has proven to be one oldest settlement in history and been named "Zero Point History" due this feature. What happened left countless artifacts historical mysterious turned it into an open-air museum. One most important current mystery is why life Tepe disappeared. It fact that civilizations disappear not only for reasons such as war, but also environmental problems sometimes, on contrary, they have survived many years. Based these facts; study aimed draw attention issue "erosion", which continues a major threat problem today's world, studied specifically Tepe. In light all information, answer was sought question whether undergrounded by human or natural means.