Sentences with phrase «pyrite from»
«Uranium in framboidal pyrite from a naturally bioreduced alluvial sediment.»
https://www.pnnl.gov/ Not exact matches
To this can perhaps be added a vague national weariness with certain of the now - waning personalities of the pyrite generation, and of course the naturally cautious, careful nature of Hodgson himself, a man who, if passed a tub and asked to give it a thump, would carefully examine it from all angles, smile wistfully, then pop it in his bag to hold tomorrow's sandwiches.
The trilobites from this locality are replaced with the mineral pyrite.
So the bacteria evidently form a sort of conductive chain, comprising biological nanowires and possibly pyrite grains embedded in the mud, that allows electrons from the oxidation of hydrogen sulfide and carbon within the sediment to contribute to the reduction of oxygen by other microbes at the sediment surface.
The best idea, from Don Canfield [of the University of Southern Denmark], is that building up a little bit of atmospheric oxygen causes iron pyrite minerals in the continents to oxidize and form sulfate.
The elemental signature of these objects differed from the standard pyrite framboid, which includes iron and sulfur.
Dated to 3.43 billion years ago in sandstone from the Strelley Pool Formation in Western Australia, the microstructures were found with micrometer - sized pyrite crystals (fool's gold, an iron - sulfur mineral), as would be expected as the metabolic by - products of sulfur - based life that employ «sulphate - reduction and sulphur - disproportionation pathways.»
Acid mine drainage (AMD) refers to the outflow of acidic water from coal or metal mines, often abandoned ones where ore - or coal mining activities have exposed rocks containing the sulphur - bearing mineral pyrite.
Crafted from Sterling silver, brass and pyrite, this lovely little charm will be a great addition to...
State perforated booties (sold out but similar here) Hat: Fiddler cap from Nordstrom Bag: Kate Spade (similar here) Bracelets: Kendra Scott beaded bracelet set in pyrite
State perforated booties (sold out but similar here) Hat: Fiddler cap from Nordstrom Bag: Kate Spade (similar here) Bracelets: Kendra Scott beaded bracelet set in pyrite Earrings: Baublebar Icestorm Drop
Crafted from Sterling silver, brass and pyrite, this lovely little charm will be a great addition to your collection.
This earthy - glamorous necklace is captivating, with three strands of faceted andalusite and hammered gold vermeil beads suspended from a chain of gold vermeil and pyrite beads.
They range from Citrine Black Metallic, Tansanite Blue Metallic, Pyrite Brown Metallic, and Moonstone Metallic.
From TV Tropes: «Magical Starsign has a town full of Pyrites with Punny names, like Nun Toobrite and Tawks Lykeahippy, that represent how they talk.»
That damned fool Sagan put us off in the 80's, but Dessler puts nuclear winter to rest, No worries about big rocks falling from the sky and hitting a pyrites bed.
Other sensible heat losses include the heat contained in bottom and fly ash removed from the boiler and pyrites and rock that are rejected from coal mills.