Alluvium example sentences

"Alluvium" Example Sentences

1. The alluvium deposited by the river flood spread out across the plain.
2. Alluvial soils formed from alluvium deposited by rivers and streams.
3. The fertile alluvial plains are ideal for agriculture.
4. Alluvial fans form where fast-flowing streams exit mountains and drop their sediment load as alluvium.
5. Alluvium accumulates in low-lying areas such as floodplains, river deltas, and estuaries.
6. The heavy flooding deposited layers of alluvium that buried the ancient ruins.
7. The alluvium consisted mainly of sand and silt carried by the river's current.
8. Alluvium accumulation raises the level of floodplains and estuaries over time.
9. As the river meandered through the valley, it deposited alluvium along its banks.
10. The rich alluvial soil supported a bountiful harvest that year.
11. The river's frequent flood cycles built up deep layers of alluvial deposits.
12. Digging in the alluvium, archaeologists uncovered artifacts from an ancient civilization.
13. The alluvial plains are formed from layers of sediment left behind as rivers overflow their banks.
14. Prospectors panned for gold in the alluvium deposited by mountain streams.
15. The ancient ruins were preserved under meters of alluvium that had accumulated gradually over millennia.
16. Groundwater flow through alluvium deposits enriches soils with dissolved minerals.
17. Rising seas caused saltwater to infiltrate the freshwater aquifers within the alluvium.
18. Alluvial deposits are critical for groundwater storage and supply.
19. Reclaimed land from alluvial deposits supports sprawling urban areas near estuaries.
20. The fertile alluvial soil allowed the settlement to thrive with bountiful harvests.
21. Glacial meltwater carried and deposited the alluvium that formed the plains.
22. Core samples taken from the alluvium revealed clues about past climate conditions.
23. Alluvium layers are studied to learn about past movement of rivers and streams.
24. As the floodwaters receded, they left behind alluvium that replenished the cropland.
25. Stratification lines within the alluvium indicated periods of higher and lower flow.
26. The gold found within the alluvium supported a boomtown during the gold rush years.
27. The sediments that compose the alluvium were sorted by water flow into different particle sizes.
28. Weathering of bedrock contributes material that is eventually transported as alluvium.
29. The alluvium built up over time, elevating the land above historic flood levels.
30. Miners sifted through alluvium to find gemstones eroded from mountain rock formations.
31. The ancient site was discovered through x-ray imaging of accumulations of alluvium.
32. Alluvium deposits are studied for evidence of past climate cycles and geological events.
33. The deep alluvial fan contained minerals washed out of the surrounding mountains.
34. Scientists meticulously mapped and dated layers within alluvial deposits.
35. The alluvium loam soil, rich in minerals, resulted in high crop yields.
36. Alluvial deposits are differentiated from other types of sediment based on origin and composition.
37. The alluvial gold found in the streams sparked a gold rush and attracted prospectors from far and wide.
38. The composition of alluvium grains provides clues about the erosive forces that shaped them.
39. The cultivated fields atop the alluvium were irrigated using an elaborate system of canals and dikes.
40. Alluvium layers are packed densely through the weight of overlying deposits.
41. The fertile land formed from alluvium attracted settlers who established farms there.
42. Reconstructing the sequence of alluvial deposits reveals how river channels have changed over time.
43. Alluvial deposits are stratified, with the coarsest material at the bottom and finest at the top.
44. The layers of clay, silt, and sand within the alluvium were sorted by grain size and density.
45. Alluvium deposits can trap and preserve organic materials that are later used for radiocarbon dating.
46. The height of alluvial deposits above sea level indicates the time since deposition started.
47. Scientists analyzed pollen grains preserved in ancient layers of alluvium.
48. The depth and extent of alluvium below the surface was mapped using geophysical methods.
49. As rivers shift course over time, they leave behind floodplain alluvium in abandoned channels.
50. The many layers of alluvium accumulated slowly over millennia.
51. Gold particles become trapped within interstices between grains of alluvium.
52. The alluvial fan grew in size as the stream deposited its heavy sediment load upon exiting the mountains.
53. Sediment-laden streams tend to leave behind more alluvium where current slows.
54. The heavily stratified alluvium testified to a river's dynamic and ever-changing course.
55. Careful analysis of alluvial deposits has shed light on past ecological conditions.
56. Deltaic alluvium accumulates where rivers meet standing bodies of water.
57. Lithified alluvium forms conglomerate rock when cemented together by mineral deposits.
58. The undulating layers of alluvium trace the wandering path of an ancient stream.
59. After the flood, newly deposited alluvium enriched the impoverished soil.
60. Alluvium continues to build up over time through successive floods and channel migrations.

Common Phases

1. The ancient flood plain was formed of thick layers of alluvium deposited over centuries.
2. Alluvial fans form where running water spreads out the alluvium in a cone shape.
3. The Missoula Floods deposited huge amounts of alluvium that formed the Palouse region.
4. The land was extremely fertile due to the rich clay and silt in the alluvium.
5. The scientists analyzed samples of pollen, plant parts and tiny insects trapped in the alluvium.
6. Prospectors panned for gold dust in the alluvium deposited by the stream.
7. The alluvium in the flood plain was continually replenished during yearly floods.
8. The rich soil made farming highly productive due to the large amount of organic matter in the alluvium.
9. Groundwater seeped through the porous layers of coarse alluvium and flowed into aquifers.
10. Fossils of now-extinct animals were occasionally found in pockets within the alluvium.
11. The red color of the alluvium indicated a high iron oxide content.
12. Droughts caused the alluvium levels in the river to rise, threatening irrigation systems.
13. The alluvium nearest the river contained higher levels of nutrients for plant growth.
14. Clay particles in the alluvium gave the soil its ability to retain both water and air.
15. The river picked up and deposited layers of alluvium as it meandered across the flood plain.
16. Alluvial fans form where streams exit mountains and spread out the alluvium they carry.
17. Valley bottoms are often formed from thick deposits of alluvium laid down by river systems.
18. Shifting river channels left pockets of alluvium isolated from constant replenishment.
19. The pH level in the alluvium closest to the river was slightly more alkaline.
20. Groundwater transported minerals up from deeper layers of the alluvium.
21. Mining operations dug through layers of alluvium to access valuable mineral resources.
22. Archaeologists searched for artifacts in ancient habitation sites buried within the alluvium.
23. Fossilized logs and branches were occasionally uncovered when digging into the alluvium.
24. Drainage ditches were dug to lower the water table in the saturated alluvium.
25. Older layers of alluvium closer to bedrock tended to contain more calcium and magnesium.
26. Delta formations are typically built up from layers of alluvium deposited where rivers meet seas or lakes.
27. Chemical reactions within the alluvium gave the soil its ability to buffer changes in pH.
28. The highest levels of organic material were found within the top layers of alluvium closest to the surface.
29. Volcanic ash mixed with alluvium gave the clay a high cation exchange capacity.
30. Water percolating through more recent layers of alluvium dissolved and transported minerals.
31. Artifacts found buried within early layers of alluvium provided clues about human habitation.
32. Old river channels were occasionally still visible in the contours of the underlying alluvium.
33. Scientists reconstructed early climates by studying pollen within trapped in ancient layers of alluvium.
34. Thick layers of coarse alluvium near the surface often indicated arid periods with infrequent flooding.
35. The delta was formed from layers of clay, silt and sand deposited by the river within the alluvium.
36. The base of the alluvium typically consisted of sand and gravel washed out from bedrock of the river channel.
37. Recharging groundwater helped leach soluble minerals up from deeper layers of the alluvium.
38. Early ditches were dug to drain the high water table within the alluvial deposits.
39. Over billions of years, river systems deposited vast amounts of alluvium on the landscape.
40. The stratification within the layers of alluvium provided clues about the area's geologic history.
41. The nutrient composition of the alluvium varied according to which minerals were predominant at different depths.
42. Old river oxbow lakes were occasionally still visible in depressions within the regional alluvium.
43. Irrigation systems tapped into groundwater percolating through the layers of porous alluvium.
44. Long term flooding patterns could be deduced by studying the thickness and particle size within the alluvium.
45. Sedimentary structures formed within early layers of alluvium provided clues about ancient environments.
46. Gold and gemstones were sometimes panned from the finest particles within the alluvium.
47. Alluvial fans were typically composed of sand, gravel, and silt deposited by flooding rivers within the alluvium.
48. Groundwater often rose to the surface by seeping up through layers of porous alluvium.
49. Early inhabitants were attracted to sites with abundant water, wildlife and plant life provided by the nutrient-rich alluvium.
50. The deeper layers of alluvium, closer to bedrock showed much less organic material due to burial and a lack of oxygen.
51. Ground penetrating radar was used to map layers and structures within the extensive alluvium.
52. Sedimentologists used changes in the character of the alluvium to reconstruct the area's geological history.
53. High levels of quartz in the alluvium indicated a strong erosive component of the river over time.
54. Ancient soil horizons were occasionally still visible in buried layers within the alluvial deposits.
55. Early farmers were drawn to the fertile alluvium deposited over centuries by overflowing rivers.
56. As the river changed course, layers of alluvium were left behind in abandoned channels.
57. Bones and teeth of now-extinct plants were sometimes uncovered in layers of ancient alluvium.
58. The depth and thickness of alluvium deposited varied according to the volume and intensity of past floods.
59. Pottery shards and stone tools were occasionally found buried within early layers of alluvium.
60. The oldest layers of alluvium were often cemented into a hardened conglomerate.