...) and perhaps rapid (increase in nematode standing stock) and longer term (increase in nematodes and benthonic foraminiferans) responses to the oil as it reached the bottom. Four pelagic avenues of oil to the bottom were recognized (tar balls and perhaps on the bodies of dead plankton near the Burmah Agate...

....) Spherical & nonspherical shapes Grass pollens & corn smut Natural Mt.Qomolangma (Himalayas) Soot/tar ball Chain aggregation & spherules shapes Fuels, biomass burning or incomplete fossil fuel combustion Anthropogenic Cong et al. (2010) Aluminosilicates Irregular shape soil...

..., written on board ship before disembarking, follows: I have no argument with Blumer’s (1972) statement that “most” crude oil lumps, or tar balls, now floating on the world oceans, “are the result of man’s activities.” I do insist that there is today, as in the past, “some” pollution of the seas...

... already been done along those lines, and then discovering that it really is not simple or economical under present conditions, the last form of interest remaining for the geologist is the problem of their origin and the source and extent of migration of the oil. Mr. Ball’s contribution on the “Tar-Sand...

... a comprehensive bibliography and a more detailed account of the various theories on the origin of the “Tar sands” oil. 3. Slipper , S. E. , “ Natural Gas in Alberta ,” Geology of Natural Gas, Amer. Assoc. Petrol. Geol . ( 1935 ), p. 16 . 4. Ball , M. W. , “ Athabaska Oil Sands; an Apparent...

.... The total reserves of low-sulfur western coal and tar sands accessible by surface mining and current process technology, and in relatively high-grade oil shale, are staggering—the figure is a stunning 335 billion bbl of accessible reserves (34 billion tons of low-sulfur, surface-minable coal, with a BTU...

... participation in field campaigns across the globe produced much new science. Our TEM studies led to, among other things, (a) the discovery of the widespread carbonaceous particles we called “tar balls,” which were subsequently shown to be abundant in wildfire emissions; (b) experimental understanding...

... Technology); sample B′92 (The Geochem Group, 1992, Analytical data for three tar balls collected from a beach on the northwest coast of the island of Mahe, Seychelles, Report 6354 for Lasmo International Ltd.); and sample M′92 (L. W. Elrod, 1992, Geochemical evaluation of Seychelles oil, Texaco Frontier...

... to the upper Pleasanton (Late Pennsylvanian) section in Lafayette and Carroll Counties. Bitumen deposits are present in Mississippian and Pennsylvanian limestone beds. Since 1950 interest in asphaltic sandstone (“tar sand”) deposits has kept pace with development of thermal-recovery techniques and demand...

... in a host of geochemical systems, including 1.1-Ga-old sediments from the Taoudeni Basin ( Gueneli et al. 2018 ), natural petroleum seeps ( McKenna et al. 2014 ), bitumen ( McKenna et al. 2009 ), and tar balls ( Lima et al. 2020 ). A new high-mass-resolution tool for routine analysis of complex...

...F igure 2 Transmission electron microscope (TEM) images of carbonaceous particles from the continental troposphere. ( A ) A branching soot particle, composed of primary spherules 20–50 nm in diameter; ( B ) an aged, compact soot particle; ( C ) a “tar ball,” an amorphous, carbon-dominated...

... is undeniable, and the Athabasca oil accumulation is no exception. It represents what was once a gigantic “East Texas” oil field—a true stratigraphic-trap accumulation. Any discussion of the Athabasca bituminous sands must acknowledge the pioneer work by Bell, McConnell, Hume, Ball, Sproule, et al...

... stand out on exposures in bold relief. Low-grade beds, on the other hand, are dark to light brown, buff or white, and ordinarily weather to more gentle slopes. “Tar” springs are a conspicuous feature of the richer beds. They issue from strata overlying impervious clay or other partings where...