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feldspathic
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Dawsonite
It was discovered in 1874 during the construction of the Redpath Museum in a feldspathic dike on the campus of McGill University on the Island of Montreal
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felspathic
feldspathic, felspathic, a. (fɛld-, fɛlˈspæθɪk) [f. fel(d)spath (see prec.) + -ic.] Of the nature of or containing feldspar.1832 Lyell Princ. Geol. II. 295 The decomposition of felspathic lavas. 1845 Darwin Voy. Nat. xxi. (1873) 486 Feldspathic rocks have produced a clayey soil. 1879 J. J. Young Cer...
Oxford English Dictionary
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Clay - Lee College Library
Clay is the result of feldspathic rock that has been broken down over many eons, by water, snow, ice, wind, and erosion - weathering. Feldspar, one of the common clay-forming minerals, comprises about 60% of the earth's crust. When the earth was forming, some of the feldspathic rock was weathered into smaller and smaller bits, eventually ...
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Graptolite Island
It consists of beds of Permian to Triassic sandstone (feldspathic arenite and feldspathic wacke) interbedded with beds of siltstone, mudstone, and diamictite
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feldspathose
ˌfel(d)spaˈthose, a. [+ -ose.] = feldspathic, felspathic a.1811 Pinkerton Petral. II. 448 It contains many felspathose points. 1879 Dana Man. Geol. (ed. 3) 74 Feldspathose.
Oxford English Dictionary
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quartzofeldspathic
ˌquartzofeldˈspathic, a. Petrol. Also -fels-. [f. quartz + -o + feldspathic, felspathic a.] Containing a high proportion of quartz and feldspar.1839 H. T. De la Beche Rep. Geol. Cornwall, Devon & W. Somerset vi. 175 It has chiefly a quartzo-felspathic base with crystals of felspar. 1973 Nature 11 Ma...
Oxford English Dictionary
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Protolith
Magmatic protoliths can be further divided into three categories: ultramafic rock, mafic rock, and quartzo-feldspathic rock. Similarly, sedimentary protoliths can be classified as quartzo-feldspathic, pelitic, carbonate rocks, or some mixture of the three.
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Vadito Group
Description
The Vadito Group is an extensive sequence of supracrustal rocks dominated by feldspathic gneisses, feldspathic schists, and metamorphosed sandstones
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cantalite
ˈcantalite Min. [a. F. cantalite, f. Cantal in France + -ite.] A feldspathic rock from Cantal in France, formerly considered a variety of quartz.
Oxford English Dictionary
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Fengjiahe Formation
to 1500 metres thick and consists of "purple-red mudstone and argillaceous siltstone interbedded with gray-green and yellow-green quartz sandstone and feldspathic
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Lunar terrane
Three terranes have been identified on the Moon: the Procellarum KREEP Terrane, the Feldspathic Highlands Terrane, and the South Pole–Aitken Terrane. Not all maria are in the PKT, however - Mare Crisium and Mare Orientale are located within the outer Feldspathic Highlands.
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Mafinga Central
Both peaks are found on the Mafinga Ridge, an area composed of quartzites, phyllites, and feldspathic sandstones of sedimentary origin.
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Rock Run (Martins Creek tributary)
As it flows east, it runs into the Pensauken and Bridgeton Formations laid down during the Tertiary period, yellow to reddish brown feldspathic quartz Then it finally flows into the Trenton Gravel Formation from the Quaternary, consisting of feldspathic quartz sand which is reddish brown, yellow, and
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Yamato 791197
Classification and characteristics
Weighing 52.4 grams, it is a weakly shocked feldspathic regolith breccia believed to have come from the lunar highlands
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