1. 有机物：黑色的沉积岩多数是泥岩含有机物较高,有机物 (organic matter) 不是矿物,是石头内的化学物质, 有机物内含炭 carbon,炭可和其他物质混合变成矿物 e.g.
2. 有机物质：由俄国微生物学家维诺格雷基(Winogradskyi)在无意中发现一类奇特的好氧性细菌,这类的细菌与一般的好氧性细菌生长的方式极为不同,一般的细菌需供养有机物质(Organic matter)才能生长及增殖(单细胞微生物的分裂增殖行为),
3. 土壤有机质：在接近中性的条件下,土壤矿物及有机质对二价无机汞的吸附能力依序为含水氧化铁(Fe2O3.XnH2O)、土壤有机质(Organic matter)、伊莱石(Illite)、蒙特石(Montmorillonite)、高岭石(Kaolinite)、氢氧化铝(Al(OH)3),此时被吸附之无机汞的主要为HgOHCl.
1. Oil shale is a compact rock containing organic matter that yields petroleum when destructively distilled.
2. The soil's organic matter content now meets European Union standards, she said.
3. Technicians were called in to unearth the problem, and that was the first time she heard about organic matter in the soil.
4. One is a massive effort to help farmers and herders build up organic matter in soils.
5. In the process, the bacteria consume organic matter in the biomass material.
6. Black soil gradually accumulates over hundreds of years as a result of slowly decaying organic matter.
7. But the centuries the ship spent buried in a thick layer of organic matter is what actually preserved it.