dropstones造句

例句与造句

1. Ice-rafted dropstones sourced from Russia are indicators of this northern boundary.
2. Dropstones and earliest evidence of glaciation ever recorded.
3. The clay layers include incongruous cobbles and boulders, dropstones which melted free from icebergs floating above.
4. The 300 m-thick name-bearing section at Gaskiers, NL is packed full of striated dropstones.
5. Glacial dropstones are found in the interbedding, suggesting Cryogenian age, however carbon isotope results suggest Ediacaran age instead.
6. It's difficult to find dropstones in a sentence. 用dropstones造句挺难的
7. For example, previously identified dropstones have been re-interpreted as having been emplaced by lateral sediment-gravity or current processes.
8. Some of laminated mudstone beds contain a few outsized pebbles or cobbles that have depressed the underlying laminae and giving them the appearance of dropstones.
9. Marie to Sudbury, northeast of Lake Huron, with giant layers of now-lithified till beds, dropstones, varves, outwash, and scoured basement rocks.
10. Part of the Kingston Peak resembles glacial till by being poorly sorted and other parts have large boulder-sized dropstones resting in a fine-grained matrix of sandstone and siltstone.
11. The sand-and gravel-sized fraction of the diamictites consist of volcanic, granitic and metasedimentary lithic fragments that have the same composition as the sediments of the Brookline and Dorchester members . chattermarked quartz grains and dropstones have been reported from these diamictites.