Polarized light allowed subsurface stress patterns that would result in rock fracturing in nature to be observed as the dyke grew. (sciencedaily.com)
He also found cells of D. audaxviator, a bacterium that made up 99.9 % of the organisms he recovered from one of the filters used to extract water from rock fractures deep in the mines. (discovermagazine.com)
Opponents of the tests have warned that potentially harmful radioisotopes, especially caesium - 137, strontium - 90 and plutonium isotopes, will leach from rocks fractured by the blasts. (newscientist.com)