| 单词 | barite |
| 例句 | There was silver and copper and uranium and barite, which Dad said oil-drilling rigs used. The Glass Castle 2005-03-01T00:00:00Z His dad worked in the barite mine and spent his evenings at the Owl Club, so Billy had a lot of unsupervised time on his hands. The Glass Castle 2005-03-01T00:00:00Z Dad got a job as an electrician in a barite mine. The Glass Castle 2005-03-01T00:00:00Z The barite mine where Dad worked had a commissary, and the mine owner deducted our bill and the rent for the depot out of Dad’s paycheck every month. The Glass Castle 2005-03-01T00:00:00Z Because the barite gave the ichthyosaur’s bones a bright glow, the team was able to observe anatomical features that had been overlooked or obscured. X-Ray Vision Brings New Life to a Fossil Flattened by Time 2023-06-01T04:00:00Z What they do display are strange increases in barium—likely from barite, a mineral used in offshore oil drilling. Bogs, lakebeds, and sea floors compete to become Anthropocene’s ‘golden spike’ 2022-05-05T04:00:00Z The so-called Palmer Project, if developed, is expected to produce a copper concentrate, a zinc concentrate, some gold and silver, and barite, she said. Exploration under way for southeast Alaska mine project 2019-06-22T04:00:00Z However, barite and antimony are not included in the new tariffs. U.S. gives rare earths reprieve in revised $200 billion China... 2018-09-18T04:00:00Z Used as a weighting agent in oil and gas drilling, barite is another mineral the United States mainly sources from China, which accounts for 69 percent of its imports. How U.S. tariffs on China minerals could hurt industry, consumers 2018-07-31T04:00:00Z Principe climbed through steep clay gullies looking for the raw Bologna rock, called barite. This chemist is unlocking the secrets of alchemy 2018-01-30T05:00:00Z A barite mining operation at the Jebel Irhoud massif in Morocco, some 100 kilometers west of Marrakech, turned up a fossil human skull. Ancient Fossils from Morocco Mess Up Modern Human Origins 2017-06-08T04:00:00Z The Moroccan site, known as Jebel Irhoud, was an active barite mine when it first made scientific waves in the 1960s. These Early Humans Lived 300,000 Years Ago—But Had Modern Faces 2017-06-07T04:00:00Z “I’ve been in business a long time but never been able to push a button and barite appears.” Oil patch veteran has no plans to hang it up 2014-10-26T04:00:00Z Other minerals are: 27 billion barrels of bitumen, 2.23 trillion tonnes of limestone, 14 million tonnes of tonnes of barites and about a million tonnes of zinc-lead. North Nigeria's poor beat path to nascent mining boom 2013-08-22T15:18:17Z A natural copper impurity in the Italian barite was the key to making the object’s luminescence last. Copper ions, once bathed in light, slowly released the stored energy. This chemist is unlocking the secrets of alchemy 2018-01-30T05:00:00Z A few weeks ago, solidified barite added to the drilling mud was identified as the culprit. McMoRan's Moffett And Partners Refuse to Give Up at Davy Jones 1 2012-12-27T23:02:00Z The extreme heat and pressures had caused the barite to form a cement like material that was hard to grind away. Shortsellers Party Hearty After Their Cheerleader Says McMoRan Is Worth Zero 2012-11-30T15:23:01Z In addition to the Calumet transaction, two years ago Anchor bought an Ohio firm that grinds barite used as a component in drilling mud. Oil patch veteran has no plans to hang it up 2014-10-26T04:00:00Z Barium sulphate, generally called heavy spar or barite. Webster's Unabridged Dictionary (2nd 100 Pages) 2012-03-24T02:00:19.387Z If the addition of heat will increase the effect of such a solution, it may become possible to separate, by means of the continuous jig, minerals so near in specific gravity as barite and galena. The Galaxy Vol. XXIII?March, 1877.?No. 3 2011-01-31T03:00:16.193Z For sure, they will not again use barite in any heavy muds sent down these holes to keep gas kicks under control in the future. McMoRan's Moffett And Partners Refuse to Give Up at Davy Jones 1 2012-12-27T23:02:00Z Without reading the white papers that have been ordered up, my surmise is that they won’t be using barite muds in the future. Shortsellers Party Hearty After Their Cheerleader Says McMoRan Is Worth Zero 2012-11-30T15:23:01Z Along with oil, methane, methanol, and Corexit, drilling fluids add their own frightening recipe to the disaster: arsenic, lead, mercury, cadmium, barite, fluoride, chrome lignosulfonate, vanadium, copper, aluminum, chromium, zinc, radionuclides, and other heavy metals. The BP oil-methane-dispersant-drilling fluids disaster 2010-08-12T16:45:00Z The principal deposits of barite are found in sedimentary rocks, and especially in limestones and dolomites. The Economic Aspect of Geology Examine brimstone, flowers of sulphur, pyrite, chalcopyrite, sphalerite, galenite, gypsum, barite. An Introduction to Chemical Science In December, efforts were made to dissolve the barite using a solvent. McMoRan's Moffett And Partners Refuse to Give Up at Davy Jones 1 2012-12-27T23:02:00Z Ground barite is also used in certain kinds of rubber goods and in the making of heavy glazed paper. The Economic Aspect of Geology Germany is the world's principal producer of barite and has large reserves of high grade. The Economic Aspect of Geology The large fluorspar deposits of Illinois and Kentucky contain fluorite with calcite, barite, and metallic sulphides, in wide veins filling fissures in limestones and sandstones and replacing the fissure walls. The Economic Aspect of Geology The mineral barite is a heavy white sulphate of barium, frequently called "barytes" or "heavy spar." The Economic Aspect of Geology Witherite, the barium carbonate, is a much rarer mineral but is found with barite in some veins. The Economic Aspect of Geology A limited amount of solution and redeposition of the barite takes place, however, resulting in its segregation into nodules in the residual clays. The Economic Aspect of Geology Most of the barite actually mined comes from these residual deposits, which owe their present positions and values to katamorphic processes. The Economic Aspect of Geology They are variously associated with a gangue of dolomite, calcite, quartz, iron pyrite, barite, and chert. The Economic Aspect of Geology It may be noted that in recent years other sulphate minerals have been occasionally regarded as primary, including gypsum, anhydrite, barite, and others. The Economic Aspect of Geology |
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