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单词 fragmental
例句 fragmental
Our understanding went from rudimentary and fragmental to advanced and unified with breathtaking speed, leaving this poor book wallowing in suddenly outdated ideas. Always Check the Copyright Date: Rocks, Rivers and the Changing Earth 2019-09-21T04:00:00Z
But such a deep impression is not made by a superficial or fragmental study of the poem. Special Method in the Reading of Complete English Classics In the Grades of the Common School 2012-03-17T02:01:04.053Z
The original porphyritic, fluidal, vesicular or fragmental structures of the igneous rock are clearly visible in the less advanced stages of hornfelsing, but become less evident as the alteration progresses. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 6 "Home, Daniel" to "Hortensius, Quintus" 2012-03-15T02:00:32.250Z
Films or stains of glauconite on shells, sand grains and phosphate nodules are explained by a similar deposit of fragmental glauconite. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 1 "Gichtel, Johann" to "Glory" 2012-01-11T03:00:20.463Z
That these movements were separated by a considerable interval of time is shown by the fact that the re-cementation of the fragmental products of the first movement preceded the second. The Geography of the Region about Devils Lake and the Dalles of the Wisconsin 2011-11-29T03:00:17.347Z
When a fragmental rock is composed chiefly of rocks belonging to the acidic group, we say it is felspathic. Geology 2011-02-20T03:00:12.660Z
Rocks that are made out of fragments of other rocks torn down by the agencies of erosion are called fragmental. Earth and Sky Every Child Should Know Easy studies of the earth and the stars for any time and place
The fragmental materials thus accumulated are of all sizes, from the finest dust up to blocks many tons in weight, the latter being naturally piled around nearest to the orifice. Volcanoes: Past and Present
But the walls were admitting a fragmental echo of what must have been a reverberating voice. The Finding of Haldgren
Placers are detrital or fragmental sediments containing the ore in mechanical fragments, which are derived from the erosion and transportation of solid-rock veins or lodes, sometimes called the "mother lode." The Economic Aspect of Geology
“Take that!” roared my opponent; and the bread-basket, with its fragmental cargo of biscuits, came full in my face, very considerately putting bread into my mouth for his supposed injury. Rattlin the Reefer
Against it there stood only the fragmental ruin of the great, gray face, buttressed with concrete more coherent than granite itself, but all useless here. The Sagebrusher A Story of the West
Hence the form or outline of many of these fragmental craters is crescent-shaped. Volcanoes: Past and Present
A second groan, shaken out of its continuity into another comical shower of fragmental coughs, closed this dreary but silent soliloquy. Willy Reilly The Works of William Carleton, Volume One
These are similar in composition to the leaner iron ores of Brazil, called itabirite, but differ in that the silica is in the form of chemically deposited chert, rather than fragmental quartz grains. The Economic Aspect of Geology
Hers was a fragmental family, true; but its sentiment was unanimous; she had the combined support of a pleased mother and of an enthusiastic maiden aunt. Bertram Cope's Year
Sedimentary rocks are divided into the fragmental rocks—which are made of fragments, either coarse or fine—and the far less common rocks which are constituted of chemical precipitates. The Elements of Geology
But the most important fragmental materials are those derived from the lava itself. The Elements of Geology
Ancient tuffs are known by the fragmental character of their volcanic material, even though they have been altered to firm rock. The Elements of Geology
The cone-building stage may be said to continue until eruptions of lava and fragmental materials cease altogether. The Elements of Geology
He enjoyed immensely the fragmental half-hours given him through those two days. Bertram Cope's Year
At the present time the fissure is traced by a line of several hundred insignificant mounds of fragmental materials which mark where the lava issued. The Elements of Geology
No evidence appears that the molten rock ever reached the surface, and if volcanic eruptions ever took place either in lava flows or fragmental materials, all traces of them have been effaced. The Elements of Geology
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