magma造句
31. Listening to this subterranean activity has allowed them to make predictions about how and when each pool of magma will erupt.
32. The concepts of crystal settling and convection in magma chambers have a long history r2-6.
33. Some attributed each crater to a bursting giant bubble of gases escaping from a vast ocean of magma.
34. As it cools, over the years, the magma slowly solidifies and forms crystals.
35. Eruptions can occur through either fissures or vents, again depending on magma type.
36. Indeed the feeder pipe almost certainly extends down to a large magma reservoir well below sea level.
37. Crude: Come on, get on! Magma is coming!
38. Dacitic magma is highly viscous.
39. Diamond is precipitated from the kimberlite magma.
40. Upward pressure from underlying magma domes the surface.
41. It is well known that the Syenite-gabbro association may originate from either the evolution of a single magma or two independent magmas which are usually related to intraplate extensional tectonics.
42. The garnet growth zoning was well preserved in the mega-porphyritic garnets, but completely erased due to high-K magma heating and fluid action in the rim and in fine-grained garnets.
43. Some of the most violent past eruptions, like Krakatoa in Java, resulted from magma coming in contact with water.
44. All magma consists basically of a variety of silicate minerals.
45. Magma activity and bolide effect are also announced accounting for the occurrence of PETM.
46. "Magma bodies perturb the gravity field, they change the state of stress in the rocks around them and they can change the system just by their presence," Ebinger told Discovery News.
47. The shoshonitic magma is considered to be the partial melting product of phlogopite -bearing lherzolite in the enriched Mesozoic lithospheric mantle.
48. Their source was like an asthenospheric mantle of ocean-island basalt and geosphere was also involved in the magma rising and eructating process.
49. The meltwater from the glacier on top of the volcano ran down into the crater, chilling the magma and then the pressure from underneath caused an explosion.
50. Marsili has a hidden but active magma chamber and lies beneath the surface of the Tyrrhenian Sea, which is part of the Mediterranean west of Italy.
51. Ilmenite in Henan kimberlite implies that kimberlitic magma in the area is undifferentiated magma of si...
52. Reasons to worry: Merapi is capable of producing a Plinian eruption (spewing at least 1 cubic kilometer of magma and producing 20 to 50 kilometer-high ash columns)every 1,000 years or so.
53. The rise of plutonic granitic magma was the basic heat source generating strong dynamometamorphism and one of the main factors that influenced dynamic deformation.
54. Leucite basalt was solidified by secondary magma, which was produced by fractional crystallization of a small amount (14%) of accumulative rock from primitive magma and assimilation of granite(28%).
55. The magma of porphyritic moyite -monzogranite series in the middle stage mainly originated from the lower crust, being the product of collision-orogeny.
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56. The Pacific trench lies deeper under the water and its characteristics differ in composition from the newer magma that has arisen during continental drift.
57. The directly sign of deposits is that the contact-belt of magma with stratums , the areas where have been had the mineralization such as molybdenite, pyrite, chalcopyrite, silicon, limonite and so on.
58. The decompression melting fluid system of asthenosphere provides the driving force for magma emplacement and metallogenic material.
59. The active form of second term magma is intruding from many centers with developed liquation and differentiation for deep magma together with favourable metallogenic condition for copper and nickel.
60. Hence, for the minerals to be analyzed in some rocks, when there are all sorts of genesis with xenolith, magma, mantle and so on in them, the age of a certain single event can be respectively got.
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