No Comments

Lava tube

A hollow cylinder or tube like underground formation of solid lava

No Comments

Lava bomb

A volcanic bomb is a chunk of ejected viscous lava larger than a lapilli, being over 64 mm.

No Comments

Lava

Molten volcanic rock, still in a hot viscous state and not yet solid

No Comments

Lapis lazuli

A blue semi precious stone, frequently used in jewelry for at least 3,500 years

No Comments

Lapilli

Small volcanic ejections of solid lava which range from 2 and 64 millimeters in size

No Comments

Lapidary

Pertaining to the cutting, polishing, carving or setting of precious or semi-precious stones

No Comments

Landslide

The mass movement of loose alluvial debris, usually on a steep gradient

No Comments

Landsat

A satellite which provides landscapes imagery including patterns, geologic structures

No Comments

Lamprophyre

An igneous sedimentary rock, composed of altered mafic and ultramafic minerals

No Comments

Lamellar

A term used to describe the arrangement of leaves or sheets in a structure, sometimes bound on a side