| 词汇 | syncline |
| 释义 | syncline noun[ C ] geology specializeduk /ˈsɪŋ.klaɪn/ us /ˈsɪŋ.klaɪn/ a downward, U-shaped fold in the layers of rock in the earth's surface（岩石的）向斜层 Compare anticline Geology - general words aeolian Anthropocene anticline apophysis auriferous biozone carboniferous continental plate geologically geomorphic gully erosion henge Holocene Permian petrographic petrographically petrography petrological Precambrian rockfall syncline | American Dictionarysyncline noun[ C ] us/ˈsɪn·klɑɪn/ earth science a fold in layers of rock in the earth's surface which curves down Examples of synclinesyncline Since the north limb of the syncline is either vertical, near vertical or occasionally overturned the rotation has to be up to or exceeding 90°. The south limb of the syncline contains proximal arc lavas and volcaniclastic debris, with more distal sediments comprising the north limb. In these areas, the steeply dipping to overturned short limb of the syncline is preserved. We think that this syncline is either: (i) a typical normal drag accommodating the slip in the hanging-wall of the bounding high-angle normal fault or (ii) a syn-depositional compaction structure. The overall depression is neither an area of soft lithologies able to undergo differential erosional lowering, nor a syncline area providing space for sedimentary infilling during post-orogenic times. The mountain owes it table-top flatness to the fact that it is a syncline mountain, meaning that it once was the bottom of a valley. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Another anticline has been mapped to the north of this ring syncline, which is also concentric with it. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The whole structure of the section is a double plunging syncline with sharp mountain ridges on either side of the valley. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The spur exposes a spectacular syncline of white marble and black schist. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A synclinorium (plural synclinoriums or synclinoria) is a large syncline with superimposed smaller folds. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Supposed metal-braced walls are natural concentrations of limonite and magnetite in steeply inclined sedimentary layers in the limbs of a doubly plunging syncline. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The molasse can sometimes completely fill a foreland basin, creating a nearly flat depositional surface, that nonetheless remains a structural syncline. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. There is an anticline with syncline on the southwest of the island. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A syncline determines the western side of the ashstone, with an anticline further to the west. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Snowdon itself is largely formed of volcanic ash (tuff) with some sedimentary rock and igneous intrusions folded into a syncline. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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