basaltic magma वाक्य
उदाहरण वाक्य
मोबाइल
- Most hotspot volcanoes are basaltic ( e . g ., continental regions, basaltic magma rises through the continental crust, which melts to form rhyolites.
- As the Pacific plate is being pushed to the west / northwest, it is traveling over a hot spot that is erupting silica poor basaltic magma.
- Instead, the basaltic magma forms a large magma chamber at the base of the crust and ultramafic cumulates which stay at the base of the crust.
- However, when the rhyolite is completely erupted, it may be followed by eruptions of basaltic magma rising through the same lithospheric fissures ( cracks in the lithosphere ).
- Overall the environment where the rocks formed appears to be an oxidized system that formed over 100, 000-200, 000 years, and was influenced by the injection of basaltic magma.
- The volcanoes forming the two major Menan Buttes were created when basaltic magma came into contact with a shallow aquifer or with the precursor of the modern Snake River.
- Unlike the Pacific Ocean's " black smoker " vents, with their extreme high heat and volcanic eruptions of basaltic magma, these bony white Atlantic Ocean vents ran cooler and involved no apparent volcanism.
- Hallival and Askival are formed from an extraordinary series of dykes of basalt on the northwest coast between Kilmory and Guirdil, created by basaltic magma forcing its way into fissures in the pre-existing rock.
- Eventually, this swelling turned into an active volcano, erupting basaltic magma . 600 million years ago, the volcano walls became so large and heavy, they caved in on the volcano, acting as a plug.
- In magmas which do not have a restite component, such as most M-type granites, some A-type granites, and most basaltic magmas, it is much easier for these magmas to achieve more dramatic fractional crystallization effects.
- Approximately 200 million years ago stretching of the Earth s crust allowed basaltic magma to travel up from the upper mantle and inject as sills into a series of shale formations of the Newark Basin.
- This discovery led to a slightly more complicated version of the previous hypothesis : Large amounts of basaltic magma form a magma chamber at the base of the crust, and, while crystallizing, assimilating large amounts of crust.
- One proposed explanation for flood basalts is that they are caused by the combination of continental rifting and its associated decompression melting, in conjunction with a mantle plume also undergoing decompression melting, producing vast quantities of a tholeiitic basaltic magma.
- The current belief is that the generation of andesitic magmas is multistage, and involves crustal melting and assimilation of primary basaltic magmas, magma storage at the base of the crust ( underplating by dense, mafic magma as it ascends ), and magma homogenization.
- The trachyte and comendic magmas erupted from Hoodoo Mountain and other Northern Cordilleran volcanoes are thought to have been created by fractionation of primary alkali basaltic magma in crustal reservoirs . and at least six phases of eruptive activity are recognized at the volcano.
- The eruptions from the Bowie hotspot are effusive eruptions because basaltic magma is relatively fluid compared with magmas typically involved in more explosive eruptions, such as the andesitic magmas that produce some of the spectacular and dangerous eruptions around the margins of the Pacific Ocean.
- The majority of eruptions in Hawaii are Hawaiian-type eruptions because basaltic magma is relatively fluid compared with magmas typically involved in more explosive eruptions, such as the andesitic magmas that produce some of the spectacular and dangerous eruptions around the margins of the Pacific basin.
- The Midcontinent Rift is the largest-known hot spot of basaltic magma underneath the Lake Superior region; it extruded layers of lava up to thick and extending up to on either side of the rift . The deposited lava along the North Shore of Lake Superior is thick.
- However, at least one researcher has cogently argued, on the basis of geochemical data, that the mantle's role in production of anorthosites must actually be very limited : the mantle provides only the impetus ( heat ) for crustal melting, and a small amount of partial melt in the form of basaltic magma.
- These extremely rapid, large scale eruptions of basaltic magmas have periodically formed continental flood basalt provinces on land and oceanic plateaus in the ocean basins, such as the Deccan Traps, the Siberian Traps the Karoo / Ferrar flood basalts of Gondwana, and the largest known continental flood basalt, the Central Atlantic magmatic province ( CAMP ).
- अधिक वाक्य: 1 2
basaltic magma sentences in Hindi. What are the example sentences for basaltic magma? basaltic magma English meaning, translation, pronunciation, synonyms and example sentences are provided by Hindlish.com.