IODP Expedition 383 Source rock analyzer (SRA)

SRA is run for the purpose of safety monitoring and yields information about thermal maturation and source of hydrocarbons, as well as petroleum potential, in the sediment or rocks at a drilled site. Samples are heated in a pyrolysis oven in an inert atmosphere to quantitatively and selectively determine free hydrocarbons contained in the sample and the hydrogen- and oxygen-containing compounds that are volatilized during the cracking of unextractable organic matter in the sample (kerogen).SRA 旨在开展安全监测工作，可提供钻探点位处沉积物与岩石内的烃类热成熟作用、烃类来源以及石油潜力相关信息。实验中将样品置于惰性气氛环境下的热解炉中加热，以定量且选择性地测定样品中的游离烃，以及样品中的不可萃取有机质（即干酪根（kerogen））裂解过程中挥发产生的含氢、含氧化合物。