Word Finder - riffles

definition

A swift, shallow part of a stream causing broken water.

definition

A succession of small waves.

definition

A trough or sluice having cleats, grooves, or steps across the bottom for holding quicksilver and catching particles of gold when auriferous earth is washed. Also one of the cleats, grooves or steps in such trough.

definition

A quick skim through the pages of a book.

definition

The act of shuffling cards; the sound made while shuffling cards.

definition

To flow over a swift, shallow part of a stream.

definition

To ruffle with a rippling action.

definition

To skim or flick through the pages of a book.

definition

To leaf through rapidly.

definition

To shuffle playing cards by separating the deck in two and sliding the thumbs along the edges of the cards to mix the two parts.

definition

To idly manipulate objects with the fingers.

definition

To prepare samples of material using a riffler.

definition

In seal engraving, a small metal disc at the end of a tool.

These help to create pools and riffles for fish to spawn.

Long ditches with stone-paved sluices for washing this mineral-bearing material have long been used by the Indians, who also construct stone bars across the beds of the streams to make riffles and hold the deposited grains of gold.

The upper end contains a perforated riddle plate which is placed directly over the riffle box, and under certain circumstances mercury may be placed behind the riffles.

The floor of the sluice is laid with riffles made of strips of wood 2 in.

These were known originally as Hungarian riffles.

These are paved with stone blocks or lined with mercury riffles, so that from the greatly reduced velocity of flow, due to the sudden increase of surface, the finer particles of gold may collect.

It then passes through screens and grizzlies to retain the coarse gravel, the finer material passing on to sluice boxes provided with riffles, supplied with mercury.

Into the " rocker " and the " tom " the miner shovelled dirt, rocking it as he poured in water, catching the gold on riffles set across the bottom of his box; thus imitating in a wooden box the work of nature in the rivers.

And secondly there are the shallow riffles, which are easy to fish but rarely hold anything worth catching.

Even when the mornings are still frosty in early March, dace will be found massing in the deeper water before shallow gravel riffles.

Water is poured on the dirt, and the rocking motion imparted to the cradle causes the finer particles to pass through the perforated bottom on to a canvas screen, and thence to the base of the cradle, where the auriferous particles accumulate on transverse bars of wood, called " riffles."