columnar jointing उदाहरण वाक्य
उदाहरण वाक्य
- Pilot Rock has a large amount of columnar jointing, created when the magma cooled.
- It is a 201 million year old sequence of tholeiitic basalts, which contains columnar jointing.
- Columnar jointing occurs in many types of volcanic rocks and forms as the rock cools and contracts.
- The largest of these lava tubes is in diameter and has columnar jointing due to the large cooling surface.
- The spines are covered by welded breccia close to their bases and columnar jointing extends into the welded sequence.
- The range also includes the " Detunatele ", a pair of basalt peaks with columnar jointing.
- Columnar jointing is predominantly developed in these rocks, besides horizontal joints, which impart to the rocks bedded appearance.
- A solidified lava pond that consists of a massive gray basalt with weakly developed columnar jointing occupies the crater of Vulcan.
- Columnar jointing can occur in cooling lava flows and ashflow tuffs ( ignimbrites ), as well as in some shallow intrusions.
- In the Pebidian Supergroup the basal unit is largely basaltic and exhibits columnar jointing, autobrecciated lavas, scoriaceous and fine grained tuffs.