Treatment during transport of solid waste

The method of treatment during transport of solid waste by depositing the solid waste on the surface of a molten stream of lead traveling in one direction whereby organic material in the waste is subjected to thermal degradation, metals and other materials in the waste which are insoluble in the molten lead and of lesser specific gravity remain on the surface of the molten lead for removal and recovery while metals and other materials which are soluble in the molten lead dissolve in the molten lead for separation from the remainder while metal and materials which are insoluble in the molten lead and of higher specific gravity fall to the bottom of the stream of molten lead.https://digitalcommons.mtu.edu/patents/1123/thumbnail.jp

Episodes of intensified biological productivity in the subtropical Atlantic Ocean during the termination of the Middle Eocene Climatic Optimum (MECO)

The Middle Eocene Climatic Optimum (MECO) is an ~500 kyr interval of pronounced global warming from which the climate system recovered in <50 kyr. The deep-sea sedimentary record can provide valuable insight on the marine ecosystem response to this protracted global warming event and consequently on the ecological changes during this time. Here we present new benthic foraminiferal assemblage data from Ocean Drilling Program Site 1051 in the subtropical North Atlantic, spanning the MECO and post-MECO interval (41.1 to 39.5 Ma). We ␣nd little change in the species composition of benthic foraminiferal assemblages during the studied interval, suggesting that the rate of environmental change was gradual enough that these organisms were able to adapt. However, we identify two transient intervals associated with peak warming (higher-productivity interval (HPI)-1; 40.07–39.96 Ma) and shortly after the MECO (HPI-2; 39.68–39.55 Ma), where benthic foraminiferal accumulation rates increase by an order of magnitude. These HPIs at Site 1051 appear to coincide with intervals of strengthened productivity in the Tethys, Southern Ocean, and South Atlantic, and we suggest that an intensi␣ed hydrological cycle during the climatic warmth of the MECO was responsible for eutrophication of marine shelf and slope environments

Gerald Fassell 1955

Student field notes from zoology classes in 195

Late Quaternary marine deposits, offshore central Texas: Processes controlling geometry, distribution, and preservation potential

The interplay of sediment supply, accommodation space, and the rate of sea-level rise and fall, determine the thickness and overall extent of offshore deposits along the central Texas shelf. Analysis of near-shore sediment cores suggests that transgressive and highstand shorelines prograded during the Holocene. The preservation of these deposits may be likely given the geometry and distribution of older, offshore shorelines. The Stage 5d and Stage 3 highstand shorelines prograded during an overall sea-level fall. High sediment supply from longshore transport preserved thick, aerially extensive shoreline deposits. Fluvial incision varied significantly during lowstand Stage 2. As the rate of base-level fall increased from Stage 3 to 2, low sediment supply rivers incised narrow, shallow channels with no deltaic deposition, whearas sediment bypass and deeper incision prevailed for the high sediment supply rivers