1
زمینشناسی و معدن::
آشیانه ماگما، اتاقک ماگمایی
Geophysical investiga- tions indicated that a pear-shaped magma chamber is located between 3 and 10 km below the summit of the Kilauea.
This magma chamber is fed by a
As the lavas build vertically and gradually approach the surface of the water, gas in the magma can blast through water to the surface and result in volcanic explosions that intensify as seawater penetrates into fissures and joints and is mixed with magma in sha llow magma chambers.
These types of volcanic eruptions drain very large magma chambers in a very short time span; the emptied chamber immediately collapses to produce calderas (Spanish cauldron), bowl-shaped craters that commonly fill with water to form a lake.
Collapse was followed by the formation of dome- like bulges, an indicatation that magma chambers at depth were again filled.،magma chamber.
remobilizes the semi-liquid magma chamber.
swelling of the magma chamber fractures the rock above,
above the magma chamber collapses.
loss of lava from a shallow magma chamber underlying
واژگان شبکه مترجمین ایران