释义 |
Definition of orogen in English: orogennoun ˈɒrədʒ(ə)nˈôrəˌjen Geology A belt of the earth's crust involved in the formation of mountains. Example sentencesExamples - The Delamerian Orogen is a compressional orogen developed by westward vergent folds and thrust faults.
- Several features of the mountain belt are atypical when compared with other Palaeozoic orogens such as the Appalachians, Caledonides and Variscides.
- In the southern half of the Caledonian orogen, sedimentation in the post-Caledonian continental basins started significantly earlier, in the Mid-Devonian.
- Together with the Appalachian, Caledonian and Variscan orogens, the Uralian orogeny contributed to the assembly of the late Palaeozoic supercontinent of Pangaea.
- These collision zones are known as orogenic belts, and the mountains are referred to as orogens.
Origin 1920s: from Greek oros 'mountain' + -gen. Definition of orogen in US English: orogennounˈôrəˌjen Geology A belt of the earth's crust involved in the formation of mountains. Example sentencesExamples - Several features of the mountain belt are atypical when compared with other Palaeozoic orogens such as the Appalachians, Caledonides and Variscides.
- Together with the Appalachian, Caledonian and Variscan orogens, the Uralian orogeny contributed to the assembly of the late Palaeozoic supercontinent of Pangaea.
- These collision zones are known as orogenic belts, and the mountains are referred to as orogens.
- The Delamerian Orogen is a compressional orogen developed by westward vergent folds and thrust faults.
- In the southern half of the Caledonian orogen, sedimentation in the post-Caledonian continental basins started significantly earlier, in the Mid-Devonian.
Origin 1920s: from Greek oros ‘mountain’ + -gen. |