Lithology
Videos
The lithology of a rock unit is a description of its physical characteristics visible at outcrop, in hand or core samples, or with low magnification microscopy. Physical characteristics include colour
Stratigraphy as seen in southeastern Utah
A basalt, showing the 'pillow' lava shape characteristic of underwater eruptions, Italy
A claystone, the finest-grained sedimentary rock, deposited in Glacial Lake Missoula, Montana
An ultramafic mantle xenolith with olivine and pyroxene (altering brown to iddingsite) in a matrix of mafic basalt scoria
Core sample
Videos
A core sample is a cylindrical section of a naturally occurring substance. Most core samples are obtained by drilling with special drills into the substance, such as sediment or rock, with a hollow st
Lithology
…The lithology of a rock unit is a description of its physical characteristics visible at outcrop, in hand or core samples, or with low magnification microscopy. Physical characteristics include colour, texture, grain size, and composition. Lithology may refer to either a…
Rock core samples, the product of a diamond rig. A pied butcherbird perches nearby.
Granitic rock core from Stillwater igneous complex, Montana (from a spoil pile).
Core sampling by hand in a bog in Estonia (2023)
Cut Bakken Core samples