词汇 | ejecta |
释义 | BETA Examples of ejectaejecta isn’t in the Cambridge Dictionary yet. You can help! Computer simulations of large asteroid impacts into oceanic and continental sites - preliminary results on atmospheric, cratering and ejecta dynamics. Ejecta pellets and faecal samples were also opportunistically collected from under the bats' feeding trees. Shuvalov models impact cratering to understand the excavation flow and expansion of ejecta through the atmosphere. The crater density is same on the ejecta covered plains outside the basin. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The torus composes about 25% of the visible ejecta. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Although he does not favour panspermia, he believes that life can spread between neighbouring planets via rocky ejecta (transpermia). In addition, if volcanic ejecta covered the hinterland, this material could have provided detritus for contemporary sediments. This, together with the bifurcating pattern, distinguishes them from troughs caused by ejecta movements. Recognizing impact ejecta (both distal and proximal) in the stratigraphic record provides important time markers. A more exciting biotic refuge would be in impact ejecta exchanged between planets. A water layer at the site of an impact strongly influences the ejecta formation. Nevertheless, these two chapters serve to make the important distinction between proximal impact glass (impactites) and distal (tektites and microtektites) glass ejecta. However, an ejecta flow would not cause gullies to form with this morphology. The upper part is clast supported, appears to have been transported in suspension, and has a relatively high proportion of crystalline ejecta clasts. Subsequent chapters discuss ejecta deposits and the modification processes that follow cratering. The ejecta would, after deposition, be severely affected by the resurge. This high-speed ejecta will consist of fragments of rock smaller than the original impactor, but are from the target. |
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