alluvial gravel造句

• Ghana has produced gems from alluvial gravels since the 1920s, mostly industrial grade.
• The vines are planted on deep alluvial gravels.
• Totara Park is built on alluvial gravel.
• It then flows through an alluvial floodplain underlain by sub-alluvial gravels, underlain by rocks of the Mercia Mudstone Group.
• The alluvial gravel deposits that form the Adams river bottom are ideal for the development of salmon roe and alevins.
• Montana moss agate is found in the alluvial gravels of the Yellowstone River and its tributaries between Sidney and Billings, Montana.
• The government also is trying to expand Ghana's diamond-mining industry, which has produced primarily industrial grade gems from alluvial gravels since the 1920s.
• Gone are those deep spawning pools, those alluvial gravels, those different salmon at different times of the year, those spring, fall and summer runs.
• However, the 19th-century ground-work for the insertion of this Victorian cellar happened to puncture through the floor of an existing 18th-century low basement room and as a consequence also excavated down to the alluvial gravels, which has had fairly dire consequences over the years with problems of flooding and slight subsidence.
• It's difficult to find alluvial gravel in a sentence. 用alluvial gravel造句挺難的