Ví dụ về gravel

• This river system consisted of active channels with fast transport of sand grains and gravel.

• Granulometry of the conglomeratic layers appears to indicate that coastal gravel beds were subsequently reworked by fluvial activities.

• The gravel deposits are made up of relatively well-sorted and rounded metamorphic and volcanic clasts.

• Pieces of red brick, bits of smooth drainpipe, thick chunks of old cement, and that blue gravel you see on graves.

• The two settlements are linked by a gravel road across the mountain ridge.

• The gravel pit itself is used for angling purposes and is unsuitable as a feeding ground for birds because of its depth and steep sides.

• These were finer than the original sediments that form the top of the active layer (sandy gravel).

• Tubs were filled with sandy secondary forest topsoil over 5 cm of coarse gravel.

• To the south there is a gravel and clay wady.

• Extractors often mixed fossil copal with inferior copal resins, and sometimes with other adulterants like sand and gravel in attempts to inflate the price.

• The floor was covered with gravel to control weeds and prevent puddles during the rainy season.

• Fine-grained sediments, intercalated between two gravel deposits and also rich in plant macrofossils, occur at the base of the exposure.

• One specimen comes from a gravel pit, and another specimen was found buried in sediments below the marine limit.

• In the absence of gravel deposits, roads outside the shell ridge area are often surfaced with pulverized shell material.

• Consider a simple domain involving a hopper full of gravel and two trucks.