Abstract: Newtonian mechanics is a theory for studying the macroscopic world and quantum mechanics is for the microscopic world. Many phenomena described by quantum mechanics are beyond the macroscopic world; some of them are mysterious and even subvert our understanding of science. The most typical one is quantum entanglement. It describes two mutually entangled quanta not independent of each other regardless of the distance between them, i.e., when one of the entangled quanta is measured, the other-although far apart-can also be sensed and measured by correlation. Quantum entanglement is the most incredible feature of quantum systems distinguished from classical systems, and it has caused academic debate precisely because it is magical and difficult to verify. However, due to its powerful functionality, quantum entanglement has become the focus of world powers. In this paper, we discussed the current status of quantum entanglement research and its characteristics and explored a few examples of its applications including the teleportation function of quantum entanglement, possible relationship between quantum entanglement and telepathy, advancing quantum computing through quantum entanglement, combining quantum entanglement and big data to create quantum machine learning, and so on. Presently, there is no precedent of applying quantum entanglement technology in geology, but we believe it is not impossible theoretically. Studies have shown that two related particles are prone to entanglement; and entanglement is particularly prone to occur in groups whose members are related by kinship or causality. Coincidentally, in studying geology, our most favored and concerned subjects are the causes of geological phenomena such as rock formation, mineral deposits, metamorphosis, sedimentation, and so on. The causal relationship is causality. In fact, most geological causal relationships resemble a genetic or kinship relationship. Therefore, it seems to us that research on causality could be the entry point to geological applications of quantum entanglement technology. Here we discussed several attentive issues in applying quantum entanglement to geology. From the perspective of China's economic development, its current resources status and its survival in a modern world, we need to pay attention to quantum entanglement technology, whose introduction into the field of geology is something that has never been seen before but will be for sure.

Key words: quantum mechanics, quantum entanglement, teleportation, machine learning, geology, macro-micro scale application