The study shows that source rocks with a high level of organic matter abundance ( C ) but a bad kerogen type index ( KTI ) and those with a low level of C but a good KTI can both cross threshold of hydrocarbon expulsion .
研究表明，C（母质丰度）值高但KTI（母质类型指数）值低的烃源岩与C值低但KTI值高的烃源岩均能进入排烃门限；
kti