magma chamber n (Geological Science) a reservoir of magma in the earth's crust where the magma may reside temporarily on its way from the upper mantle to the earth's surface Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998...
Define magma. magma synonyms, magma pronunciation, magma translation, English dictionary definition of magma. n. pl. mag·ma·ta or mag·mas 1. Geology The molten rock material under the earth's crust, from which igneous rock is formed by cooling. 2. Pha
Key Points: A shallow, very strong negative Vp anomaly imaged under the explosive, submarine Kolumbo volcano, Greece, using full‐waveform inversionThe high‐fidelity image and petrologic data indicate the anomaly is a small (0.6‐km wide, 2‐km deep), magma chamber with 42% of...
A magma chamber is the heart of every active major polygenetic volcano (Fig. 1). Thus, each major volcanic structure, such as a stratovolcano, a collapse caldera, or a large shield volcano (a basaltic edifice), is supplied with magma from a (comparatively shallow) crustal magma chamber. ...
Volcanos | Definition, Classification & Eruption from Chapter 9 / Lesson 1 238K What is a volcano? Find volcano definition, eruption definition, and volcanic activity definition. Learn about the description of a volcano and the types of volcanoes. Related...
Magmadoesn’t always becomelava—sometimes it cools and solidifies beneath the earth’s surface. Sometimes, it collects in what’s known as amagma chamber. When it does reach the surface, it flows out aslava. The rock that’s formed when it hardens and cools can also be calledlava, tho...
The crust above themagmachamber is composed of layers with large and abrupt contrasts in stiffness. Because injection and arrest of dykes and sheets occurs primarily in the layers above the source chamber of the volcano, the focus is on stiffness variation between those layers. In the uppermost ...
Tianchi Volcano in Changbai Mountain/ borehole temperature/ superficial magma chamber/ geothermal gradient 0. 前言 长白山天池火山位于吉林省东部的中朝边境地区, 晚新生代以来持续活动, 为地球上最大的活火山之一[1]. 20世纪60年代初, 吉林地质调查局在长白山开展了4幅1:20万区域地质填图, 初步揭开了长白山火山...
volcano evolved through three main stages including fractionation of a parental basaltic magma, formation of an evolved chemically zoned magma chamber via fractional crystallization and minor crustal assimilation, and basaltic intrusion into the magma chamber, which may have triggered the 1707 AD eruption...
The Usu magma chamber was originally simple (stratification of evolved basalt and nearly aphyric rhyolite) but as a consequence of its historic ... E Takahashi,A Tomiya,I Miyagi - 《Bulletin of the Volcanological Society of Japan》 被引量: 6发表: 1997年 Crustal S-wave velocity structure ...