Particles of soil or rock resulting from the cutting action of drilling or augering a hole. See also Spoil.

Chips and small fragments of rock that are brought to the surface by the flow of drilling mud as it is circulated in the drilling process.

Spoils left by conventional drilling with hollow stem auger or rotary drilling equipment.

Small chips of rock from the formations through which the drill has bored, brought to the surface by the drilling mud.

Fragments of rock dislodged by the bit and brought to the surface in the drilling mud.

The small chips or flakes of rock retrieved from a well by the circulation of the mud. They are studied and logged by the well-site geologist.

Rock chippings cut from the formation by the drill bit, and brought to the surface with the mud. Used by geologists to obtain formation data.

rock chips from action of drill bit transported to surface in drilling mud.

Detached vegetative plant parts which when placed under conditions favorable for regeneration will develop into a complete plant with characteristics identical to the parent plant

Portions of root, stem, branch or leaf used to propagate plants.

A method of camellia propagation.

Used for grapevine propogation. Taken from hardened canes during dormancy. They are stored in pits of soil during winter to keep warm and moist. After callousing they are planted out in Spring to develop roots.

are a method of propagation. Softwood cuttings for lemon balm, mint, oregano, rosemary, sage, and thyme are taken before the new growth becomes hard or woody. These plants are usually quite easy to root. Taking cuttings will spur the plant into new growth and keep it bushy. In spring or early summer, prepare containers with a 1/2 and 1/2 mix of peat and perlite. The mix has to drain well to prevent rot. Take cuttings with a sharp knife, not scissors. Make your cut just below a node (bud section). Put shoots in the shade in a plastic bag or in water to prevent moisture loss. Carefully cut off all leaves except the top swirl. Make a hole in the mix. Do not allow leaves to touch the mix. Do not overcrowd. Keep cuttings out of direct sun; bright shade is best. Cover them with a plastic bag and spray them with water often. Turn the plastic bag inside out if condensation collects. If fungal growth appears on a cutting, discard it at once.

A method of propagation using sections of stems, roots or leaves.

a way of cloning plants by removing tips of branches and rooting them in propagators.