How To Use Calcic In A Sentence
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Dolerite dykes that cut the peridotite show chilled margins and local metasomatic calcic alteration.
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Calcic amphiboles, including hornblende and actinolite are abundant, and probably are alteration products, which also include albite, orthoclase and rare pyrite.
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The original hornblende crystals have partially decomposed to form a mesh of ortho- and clinopyroxene and extremely calcic plagioclase.
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Ecologists have classified plant species into calcifuges, which occur on acid soils with low Ca, and calcicoles, which occur on calcareous soils.
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Humid phases have been identified from the presence of palaeokarst, leached vertisols and rare spodosol palaeosols, while more and phases are expressed as calcretes associated with rendolls and calcic vertisols.
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The ordinary or medium class contains from 25 to 27 per cent of soluble phosphate; and here it may be pointed out that by soluble phosphate is meant the percentage of tribasic phosphate which has been dissolved -- not, as might at first sight be supposed, the percentage of monocalcic phosphate.
Manures and the principles of manuring
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A lower proportion of leaf Ptot is present as water-soluble, inorganic phosphate in calcifuges than in calcicoles grown on calcareous soil.
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Tauride dykes contain less calcic plagioclase than their host cumulates, like the Kinik ophiolites.
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Some of the studied rocks (particularly gabbros) show high alumina characteristics probably reflecting the high modal content of very calcic plagioclase.
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As we have already pointed out in the chapter on Basic Slag, phosphoric acid occurs in the slag in the form of tetrabasic phosphate of lime, although it is invariably stated in analysis as so much tricalcic phosphate.
Manures and the principles of manuring
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In the most complete survey of what is called the Rock Hill gabbro, Chalcraft mapped a large area of gabbroic anorthosite (77.5-90% calcic plagioclase) at the site where the preserve is located.
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Is be short of calcic symptom how?
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A usually coarse - grained igneous rock composed chiefly of calcic plagioclase and pyroxene.
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High calcic liming materials contain small amounts of magnesium.
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Detailed elemental and isotopic studies of this crystal fractionation pathway have indicated the importance of mafic phases, notably calcic clinopyroxene and biotite.
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Calcic amphiboles, including hornblende and actinolite are abundant, and probably are alteration products, which also include albite, orthoclase and rare pyrite.
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The Ca concentrations in calcifuge and calcicole plants growing in their natural habitats differ markedly.
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Lastly, there is a fourth compound of lime and phosphoric acid, which only occurs in one phosphatic manure -- viz., phosphatic slag, in which indeed it was first discovered -- which consists of four equivalents of lime to one of phosphoric acid, to which the name tetrabasic phosphate of lime or tetracalcic phosphate has been given.
Manures and the principles of manuring
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The Ptot concentrations were, on average, twice as high in the calcicole as in the calcifuge herbs on the calcareous soil, whereas there were no consistent differences between the herb categories on the acid soil.
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Intermediate in composition between these two phosphates there is another known as precipitated phosphate of lime, or dicalcic phosphate (the same as reverted phosphate), which contains two equivalents of lime and one equivalent of water as follows: --
Manures and the principles of manuring
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Alteration is typical of gold porphyry deposits as exemplified by a potassic-calcic core surrounded by sericitic, intermediate argillic, and propyllitic alteration zones.
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The diverse herbaceous flora included three species of calciphilic sedges, Carex albursina, Carex jamesii and Carex laxiculmis, and a fern Diplazium pycnocarpon, which is also a calcicole.
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Late phases are mainly calcic amphiboles of magnesio-hornblende composition and plagioclases with very low anorthite contents.
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Baric chloride" required 20.0 c.c. 20.0 c.c. 19.5 c.c. _Calcic chloride_ added 0 gram 1 gram 2 grams 5 grams
A Text-book of Assaying: For the Use of Those Connected with Mines.
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Within the shoot, the control of Ca is a major tolerance mechanism of calcicole species and its partitioning might provide another potential screen.
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In the commonest form, popularly called bone-phosphate, which is the form in which lime and phosphoric acid are combined in bones, guano, and the ordinary mineral phosphates, the lime and phosphoric acid are combined in the form of what is known as tribasic phosphate of lime, or tricalcic phosphate -- that is to say, for every equivalent of phosphoric acid there are three equivalents of lime.
Manures and the principles of manuring
