The intimate association of many early hominins with cave sites means that speoleothems can often be used to provide age constraints on human evolutionary pathways. This work is typically conducted with the U-Pb age domain and is probably best exemplified by the work of Robyn Pickering (one of our ex-post-docs) on the Cradle of Mankind sites in Southern Africa:
Pickering et al. (2011) Contemporary flowstone development links early hominin bearing cave deposits in South Africa. Earth and Planetary Science Letters 306, 23-32.
Pickering et al. (2011) Australopithecus sediba at 1.977 MA and implications for the origins of the genus Homo. Science 333, 1421-1423.
Michel, V., Shen, C-C., Woodhead, J., Hu, H-M., Wu, C-C., Moullé, P-E., Khatib, S., Couche, D., Moncel, M-H., Valensi, P., Choiu, Y-M., Gallet, S., Echassoux, A., Orange, F., de Lumley, H. (2017) New evidence of the early presence of hominids in Southern Europe. Scientific Reports. 7: 10074.