This rock type originates in the magma chambers that underlie volcanoes 這種巖石源自火山底下的巖漿庫(kù)。
In caldera , thrusting jets of air rise through fine sand , mimicking the development and collapse of a volcanic magma chamber 的上升氣流穿透細(xì)沙層噴射而出,模擬巖漿室在火山內(nèi)的形成與塌陷。
As the land above the magma chamber collapses , immense gray clouds called pyroclastic flows burst out horizontally all around the caldera 當(dāng)巖漿庫(kù)上方的陸地崩陷,稱為火山碎屑流的巨大灰色云霧,會(huì)突然由火山臼的周?chē)蛲馑缴㈤_(kāi)。
Such findings would imply that a new cycle of volcanism had commenced ? and that the newly engorged magma chamber had more potential to explode catastrophically 這樣的發(fā)現(xiàn)表示新一波的火山作用已經(jīng)開(kāi)始,而重新填滿的巖漿庫(kù),更有可能造成災(zāi)難性的爆發(fā)。
When the enormous magma chamber at santorini finally collapsed to form the existing caldera , enormous tsunamis ( tidal waves ) spread outward in all directions 圣多里尼火山的巨大巖漿房最后倒塌,形成了現(xiàn)有的噴火山口,巨大的海嘯(潮汐波)向各個(gè)方面向外伸展。
According to temperature , pressure , and chemical evolution of mineral crystallization in the magma chamber , it is held that the magma of intrusive rocks ascended rather fast and was emplaced at the relatively shallow place 據(jù)巖漿房中礦物結(jié)晶時(shí)的溫度和壓力條件、礦物的結(jié)晶特征及演化趨勢(shì),推測(cè)巖漿上升速度較快,侵位較淺。
Such old zircons could exist in the youngest ash only if they originated in material that was ejected during the oldest eruptions and if that material later collapsed back into the magma chamber and remelted to help fuel the youngest eruptions 這麼老的鋯石能夠存在最年輕的火山灰中,除非它們是來(lái)自最古老的噴發(fā)物質(zhì),而且這些物質(zhì)后來(lái)塌陷回巖漿庫(kù)并再次熔化,以助于點(diǎn)燃最近一次的噴發(fā)。
The geologic , element and experimental study suggest the mechanism of small body , giant deposit in jinchuan is succeeding segregation whole magma chamber intruding from deep to emplace . the study is proof , supplementary and progress of the deep segregation , penetrating ore formation theory , which was advanced by mr tang zhongli , the academician of china . 5 特別是通過(guò)鉑族元素、稀土元素研究、實(shí)驗(yàn)地球化學(xué)研究及其與實(shí)際資料的對(duì)比,提出了金川礦床成巖成礦是從深部到侵位持續(xù)熔離的新模式,論證、補(bǔ)充和發(fā)展了湯中立院士提出的深部熔離成礦說(shuō)。
百科解釋
A magma chamber is a large underground pool of liquid rock found beneath the surface of the Earth. The molten rock in such a chamber is under great pressure, and given enough time, that pressure can gradually fracture the rock around it creating outlets for the magma.