A system and method are provided for detecting and identifying core-derived primary water synthesized deep within the Earth via hydrogen reduction-oxidation (redox) reactions. The system combines an ultra-low frequency magnetotelluric (MT) sensor array to map deeply seated vertical conductive fractures with an inline downhole laser spectrometer subassembly and a surface mass spectrometer. The integrated computing software tracks real-time data from these devices, analyzing dissolved residual hydrogen gas, elevated primordial \(\text{}^3\text{He} / \text{}^4\text{He}\) isotope ratios, and distinc