obolus


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  • noun

Words related to obolus

a Greek unit of weight equal to one tenth of a gram

References in periodicals archive ?
Obolus ingricus Eichwald, 1829, Cambrian, Furongian, Estonia; Obolus triangularis Mickwitz, 1896, Cambrian, Furongian, Estonia.
The genera Obolus Eichwald, 1829 and Ungula Pander, 1830 have been recognized by Popov and Khazanovitch in Popov et al.
Between the Cambrian sand- and siltstones and Ordovician limestones occur the major sources of Rn: Lower-Ordovician obolus sandstone with P-rich layers of phosphorite that are overlain by graptolite argillite.
Possibly, due to preservation of only primarily mineralized shell components (the first apatite generation), the shell structure is the same as in Tilasia rugosa (Holmer 1991) or Obolus apollinis (Williams & Cusack 1999).
In the Baltic phosphorite basin (Leningrad region and adjacent areas of Estonia) production is from Ordovician Obolus sands.
Opornye razrezy i stratigrafiya kembro-ordovikskoj fosforitonosnoj obolovoj tolshchi na severo-zapade Russkoj platformy [The key sections and stratigraphy of the Cambrian-Ordovician phosphate-bearing Obolus beds on the north-eastern Russian platform].
Apatite varieties in the shell of a Cambrian lingulate brachiopod Obolus apollinis Eichwald.
She ends her litany with a brutal analysis of the role of the feminine in Victorian society: "I suppose / We women should remember what we are, / And not throw back an obolus inscribed / With Caesar's image, lightly" (p.
One can find the phosphatic Obolus sandstone, including brachiopod bivalves and fragments, radioactive alum shale, glauconite-rich gray bentonite clay and glauconitic sandstone.
In this study, we used XRD analysis of heat-treated fossil brachiopods to test the presence of OH-containing carbonate fluorapatite in the shells of the Cambrian lingulate brachiopod Obolus apollinis Eichwald.
They are overlain by the Lower Cambrian greenish-gray to variegated clay, silt- and sandstone, the Lower Ordovician Tremadock Obolus sandstone (phosphorite) and Dictyonema shale.
The name was applied to a transition between the Dictyonema Shale (with many interbeds of quartzose sandstone in the lower part) of the Turisalu Formation and the Obolus Sandstone represented in NE Estonia.
famous "blue clay"), Lower Ordovician--sandstone, including phosphate Obolus sandstone (shelly phosphorite), and Upper Ordovician--oil shale (kukersite).
The Cambrian section contains famous "blue clay", Lower Ordovician section--phosphate Obolus sandstone (shelly phosphorite), and Upper Ordovician--oil shale (kukersite).