词汇 | low-angle |
释义 | BETA Examples of low-anglelow-angle isn’t in the Cambridge Dictionary yet. You can help! In the meantime, the high-angle first fault system was rotated, becoming a low-angle fault system. It is suggested that the collapse occurred along a low-angle decollement surface that is marked as uncertain in the seismic interpretations. Note the cross-cutting relationship between the high-angle and low-angle normal faults. Each fault system causes rotation of the previous systems, resulting in the presentday low-angle dip of the first graben boundary fault. Steeply dipping normal faults seen to cut and to detach onto earlier low-angle extensional faults. To provide low-angle frontal illumination on the celebrants, to avoid shadows in televised images. The low-angle normal fault is illustrated as an area representing the exposed slickensided surface of the fault (lines are parallel to slickenlines). The individual pebbly sand beds within the conglomerates laterally pinch out over several metres and show parallel or low-angle cross-bedding. Horizontal lamination and low-angle planar bedding are the most common sedimentary structures, while scour-fill and trough cross-bedded sandstone also occurs. This possibility weakens structural arguments for large-scale horizontal extension via ductile shear zones with unknown original attitudes, now resembling low-angle normal faults. Accretionary lapilli are abundant in the upper part of the subunit, where low-angle cross-stratification is also observed. The conspicuous internal lamination with low-angle cross-stratification and thin interbeds of shaly sandstones indicates a less energetic fluvial regime with numerous, relatively small channels. In the lower half, bedsets showing low-angle cross-stratification are found. The low-angle mor phology of the carbonate ramp is indicated by the existence of gradual transitions between the different facies. Small-scale wavy to low-angle cross-bedding is visible in the footwall sediments. However, the age, regional extent and tectonic meaning of this low-angle shear zone development are unknown. |
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