eruption column वाक्य
उदाहरण वाक्य
मोबाइल
- Eruption columns may become so laden with dense material that they are too heavy to be supported by convection currents.
- Eruptions are affected by the local conditions, resulting in high altitude eruption columns that are sorted by westerly stratospheric winds.
- This eruption column from was high enough that in it and its isotope ratio was influenced by photolysis at high altitudes.
- Most present-day activity consists in the release of fumarolic gas with additional Vulcanian activity that generate eruption columns several high.
- On the 20 February 1990, an eruption column rose above the crater, resulting in ash fall over away from the volcano.
- Two possible scenarios of an eruption are the formation of Plinian eruption columns or more tranquil subhorizontal eruption of pyroclastic flows from vents.
- It is believed that the eruption column was high, twice as high as the eruption column from Mount St . Helens in 1980.
- It is believed that the eruption column was high, twice as high as the eruption column from Mount St . Helens in 1980.
- They do not cross topographic surfaces and were generated by tranquil release from the ground rather than through the collapse of an eruption column.
- The so-called " moat deposit " also contains large clasts and an ash-fall deposit resulting from a eruption column collapse.
- The caldera forming eruption commenced with a vent had emerged abot the water level and was generating an eruption column that deposited ash over southern Kamchatka.
- The ignimbrite was probably formed from a low-height fountaining eruption without a high eruption column, forming a base surge first and pyroclastic flows later.
- The volcanic ash comprising a tuff cone accumulated either as fallout from eruption columns, from low-density volcanic surges and pyroclastic flows, or combination of these.
- This is usually followed by the explosive clearing of the vent and the eruption column is dirty grey to black as old weathered rocks are blasted out of the vent.
- Immediate hazards related to cinder cone eruptions in the Nazko area would probably be forest fires and, if an eruption column were produced, redirection of nearby air traffic.
- Eruption columns form in explosive volcanic activity, when the high concentration of volatile materials in the rising magma causes it to be disrupted into fine volcanic ash and coarser tephra.
- The eruption column lowered global temperatures, and some experts believe this led to global cooling and worldwide harvest failures, sometimes known as the Year Without a Summer in 1816.
- This eruption was the second largest eruption of a Chinese volcano in the past 2000 years, with a total volume of of tephra that fell from a high eruption column.
- Eruption columns over high break through the tropopause and inject ash and precipitation, but material injected into the stratosphere is much more slowly dispersed, in the absence of weather systems.
- Eruption column heights are a useful way of measuring eruption intensity since for a given atmospheric temperature, the column height is proportional to the fourth root of the mass eruption rate.
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