jointing การใช้

• It has good examples of vertical columnar jointing and has caves.
• Columnar jointing occurs when certain types of lava contract while cooling.
• Rare cases of columnar jointing have also been reported from sedimentary strata.
• It contains columnar jointing units that are usually in diameter.
• Basaltic lava flows on Finngal Island comprise well-developed columnar jointing.
• Jointing and weathering features are visible in the Carboniferous limestone.
• This mountain also has good examples of vertical columnar jointing and has caves.
• Traditionally, jointing was performed using a jointer plane.
• The summit features columnar jointing and was once home to an observation tower.
• Jointing in the finer grained granite is smaller and proportional to grain size.
• The jointing of the roofing timbers were intricately detailed.
• These boulders appeared to be jointing or fracturing.
• Compared with other examples of columnar jointing, the Postpile has more hexagonal columns.
• Other tubes have concentric and radial jointing features.
• They require special techniques for jointing and terminating, see High-voltage cable.
• The Strand Fiord Formation contains columnar jointing units that are usually to in diameter.
• Featherboards are also useful for edge jointing, and making moulding on router tables.
• Columnar jointing is not limited to rhyolite formations.
• These minute fissures and larger gaps are primarily caused by jointing within the rocks.
• Jointing is a geological process in which rocks break down into block shaped pieces.