Science. 1981 May 22;212(4497):931-3. doi: 10.1126/science.212.4497.931.
Fossil zooplankton fecal pellets found in thinly bedded marine and lacustrine black shales associated with phosphate, oil, and coal deposits, link the deposition of organic matter and biologically associated minerals with planktonic ecosystems. The black shales were probably formed in the anoxic basins of coastal marine waters, inland seas, and rift valley lakes where high productivity was supported by runoff, upwelling, and outwelling.
在与磷酸盐、石油和煤炭矿床有关的薄床层海洋和湖泊黑色页岩中发现的化石浮游动物粪粒，将有机质的沉积和与浮游生物有关的矿物质与浮游生态系统联系起来。这些黑色页岩可能是在沿海海域、内陆海和裂谷湖的缺氧盆地中形成的，在这些盆地中，径流水、上升流和外流水支持了高生产力。
