热与冰的交互作用把岩浆雾化成比通常的火山灰更为纯净的微粒,同时,它产生的蒸气云把火山灰送到了比通常更高的高空。
The interaction of heat and ice atomized the magma into much finer particles than is typical, and created a steam cloud that sent the ash higher than usual into the air.
他声称,之前普遍为大众接受的理论可能是错的——即当火山岩浆库冷却后,需要经过多年才能在新岩浆的作用下重新恢复高温。
He said the widely accepted theory that when a volcano's magma chamber cools it could be years before it heats up with fresh magma could be wrong.
原生裂缝是岩浆冷凝结晶过程中形成的裂缝;次生裂缝是火山岩及其原生裂缝系统受后期构造运动、溶蚀、风化等作用改造而形成的裂缝。
Primary fracture were formed during the lava crystal and the secondary fracture generated during the volcanic reconstruction by tectonic movement, and wind action, solution.
形成这样的地质环境条件主要是岩浆侵入作用导致上覆火山岩的褶皱构造、侵入体的岩穹构造及接触破碎带构造等。
The geologic environment was mostly resulted from the intrusion of magma which led to folding of the overlying volcanic series, the formation of the intrusive dome and the contact broken zone.
火山岩岩浆起源于成熟度较高的中地壳位置,成岩物质来源于地壳,为部分熔融作用的产物。
The volcanic magmas were derived from the middle crust with a high maturity through partial melting of crustal material.
火山岩岩浆的形成既与古特提斯洋的俯冲洋壳在深部脱水有关,又与南澜沧江带红层盆地形成初期的拉张作用有关,为山—盆转化阶段特殊岩浆类型。
The origination of the magma is related with the dehydration of the subducting plate of the Palezoic Tethy Sea and the early tension of the form of the Lancangjiang belt red layer basin.
火山岩的元素地球化学特征反映岩浆来自富集地幔,在源区存在陆壳的混染作用。
The element-geochemical features reflect that the magma comes from enriched mantle and that hybridism of continental crust occurs in the source area.
堆晶体发生部分熔融,拆沉物熔融岩浆与地壳熔融岩浆于地壳岩浆房产生完全混合作用,形成古近纪具同碰撞及弧火山属性的岩浆。
The magma of melted detaching and sinking crystal completely mixes with that of the melted crust in the magmatic chamber of crust, which forms the Palaeogene syncollision and volcanic arc magma.
本文揭示了火山角砾岩筒形成中侵入凝灰岩化过程的主导作用、火山角砾岩筒参数和含矿性与岩浆活动专属性的关系。
The leading role of tuffisitization processes in formation of diatremes, parameters and ore content of diatremes relation to peculiarities of the magmatism manifestation are revealed.
分析表明:该地区高镁火山岩是幔源岩浆和地壳物质共同作用的结果。
The analysis indicates that the high-Mg volcanic rocks in the Sihetun area result from the collective function of Mantle-derived lava and Crust-source materials.
成矿带在时、空和物质组成上主要受控于中生代火山-岩浆侵入作用,形成多种矿床类型组合的成矿带。
The metallogenic belt was controlled by action of Mesozoic volcanic and magmatic intrusion, formed different deposits metallogenic belt.
火山岩是大地构造演化过程中岩浆作用的直接产物,是探讨地质事件和地球动力学演化的重要线索。
As the direct product of magmatism during the process of tectonic evolution, volcanic rocks are the important clue in discussing the geological events and geodynamic evolution.
从构造演化—岩浆作用—成矿流体系统将火山岩-花岗岩型铀矿作为统一体开展成矿作用研究。
Uranium deposits of both volcanic and granite type are studied as the systematic process of tectonic evolution-magmatism-metallogenic fluid action in South China.
本文主要讨论穹窿-火山型攀西裂谷的成因,岩浆深成作用与火山作用过程;
Panxi Rift with the dome-shaped volcano pattern has undergone three evolutionary processes: the lithosphere dome by mantle bulge, the continental crust dome and the subvolcano-dome.
本文主要讨论穹窿-火山型攀西裂谷的成因,岩浆深成作用与火山作用过程;
Panxi Rift with the dome-shaped volcano pattern has undergone three evolutionary processes: the lithosphere dome by mantle bulge, the continental crust dome and the subvolcano-dome.
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