Soil organic matter (SOM) is an important component of the carbon cycle. For oligotrophic systems, this fraction of carbon pool becomes even more crucial for understanding soil organic carbon dynamics. Here, we request EMSL's rapid access support to characterize organic matter profile in soil material. We specifically request use of Fourier Transform Ion Cyclotron Mass Spectrometer (FTICR MS) to determine organic matter signatures in a soil lysimeter filled with basaltic parent material. We aim to derive and analyze qualitative composites of the organic compound signatures for differential patterns along length and depth of the lysimeter. The results will be presented in the upcoming Soil Science Society of America (SSSA) Meetings (6-9 November 2016) in the session "Microbial Diversity of Oligotrophic Environments: Strategies, Processes, and Functions", and in the Annual Geophysical Union (AGU) Meeting (12-16 December, 2016) in the session "Geobiology of Extreme Environments: Scarcity is the mother of invention").