| 单词 | anticlinal |
| 例句 | Section of anticlinal valleys and synclinal mountains 78 17. North America 2011-05-05T02:00:20.027Z Where they dip away from the axis of movement the structure is termed an anticline or anticlinal fold; where they dip towards the axis, it is a syncline or synclinal fold. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5 "Fleury, Claude" to "Foraker" 2011-04-03T02:00:20.883Z The rivers began to flow when the Chalk strata were continuous over the centre of the Island; and their course was determined when the east and west anticlinal axis rose above the sea. The Geological Story of the Isle of Wight The hills are formed by a short, broad, anticlinal fold, which is flat or nearly so on its summit. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" The present surface of anticlinal sandstone ridges and synclinal limestone hollows thus began to arise; but the main streams still held on their courses across the strike, that is, from north to south. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 4 "Coquelin" to "Costume" Ideal section through an oil and gas pool beneath an anticlinal 339 36. North America 2011-05-05T02:00:20.027Z Data are insufficient, however, to indicate the extent to which the anticlinal areas are really areas of maximum shearing. The Economic Aspect of Geology We shall notice, however, that the Island rivers start from south of the anticlinal axis. The Geological Story of the Isle of Wight In the neighbourhood of Zafarraya, the fault intersects the broken anticlinal fold of the Sierra Tejeda, and the epicentre is thus situated in one of the most disturbed tracts of the whole region. A Study of Recent Earthquakes After another anticlinal of Old Red Sandstone, the Carboniferous Slate occupies most of the country southward, with occasional appearances of the basal Coomhola Grits and of the underlying Old Red Sandstone along anticlinals. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 4 "Coquelin" to "Costume" Many such synclinal mountains or plateaus, separated by narrower anticlinal valleys, occur throughout the Appalachians. North America 2011-05-05T02:00:20.027Z It is not clear to the writer that the interior adjustment assumed under this hypothesis is necessarily slowed up or stopped by anticlinal buckling. The Economic Aspect of Geology Nearly the whole of our English Eocene strata lies in these two basins, having been denuded away from the anticlinal arches. The Geological Story of the Isle of Wight The anticlinal axis runs approximately north-west and south-east, and is thus roughly parallel to the earthquake-fault. A Study of Recent Earthquakes The drainage of the belt as a whole is anticlinal to a marked degree, for the three main synclinal lines are lines of great elevation, and the anticlines are invariably valleys. History and Comprehensive Description of Loudoun County, Virginia The anticlinal ridges have thus been transformed 78 into topographic valleys and the original synclinal troughs left in relief as plateaus and ridges. North America 2011-05-05T02:00:20.027Z The so-called anticlinal structures, which have been found by experience to be so favorable to the accumulation of oil, are by no means symmetrical in shape or uniform in size. The Economic Aspect of Geology The more scientific generally select a spot either on the anticlinal or synclinal axis of the formation, giving preference to the former position. Burroughs' Encyclopaedia of Astounding Facts and Useful Information, 1889 But only a few miles to the south-east of the Woolhope anticlinal, and almost in the same line with it, there is a second anticlinal, that of May Hill. A Study of Recent Earthquakes The plateau itself is the anticlinal down which the North Heart flows to Peace River, which it joins at the crossing. Through the Mackenzie Basin A Narrative of the Athabasca and Peace River Treaty Expedition of 1899 Lines drawn along the summits of the ridges, A, B, would be anticlinal lines, and one following the bottom of the adjoining valleys a synclinal line. The Student's Elements of Geology The valleys within this range often follow anticlinal but rarely synclinal lines; that is, the strata on the two sides more often dip from the line of valley than towards it. Geological Observations on South America From the great development of these inner beds, a person walking round the rim of this crater might fancy himself on a circular anticlinal ridge of stratified sandstone and conglomerate. Volcanic Islands That these strata have also probably undergone an immense depression, that they are now inclined at high angles and form regular or complicated anticlinal lines. More Letters of Charles Darwin — Volume 1 The line D E, Figure 64, is the anticlinal line, on each side of which the dip is in opposite directions, as expressed by the arrows. The Student's Elements of Geology In describing the manner in which strata depart from their original horizontality, some technical terms, such as "dip" and "strike," "anticlinal" and "synclinal" line or axis, are used by geologists. The Student's Elements of Geology On the eastern slope, the strata in the upper part are regularly inclined at about 25 degrees to the east, so that the summit of this chain, neglecting small irregularities, forms a broad anticlinal axis. Geological Observations on South America On entering the Alleghany Mountains, where the distinct anticlinal axes begin to show themselves, but before the dislocations are considerable, the volatile matter is generally in the proportion of eighteen or twenty per cent. The Student's Elements of Geology Subsequent movements produced in the Nova Scotia and the adjoining New Brunswick coal-fields the usual anticlinal and synclinal flexures. The Student's Elements of Geology |
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