查询词典 volcanic

Its volcanic geological formation is complicated, varying from hard lava magmas to weathering pyroclastic debris.

火山形成的地层非常复杂，从坚硬的火山熔岩到松软风化的火山碎屑堆积物都有存在。

It includes a chronology of the 79 AD eruption, details of the pyroclastic flow and then compares the events to other modern volcanic eruptions.

该研究是John Dobbins主持的庞培讨论会的一部分，提供了公元39年火山灰的年表，详细阐述了火山灰流的资料，然后对比了当时火山和现代其他火山爆发的异同。

The matrix consists dominantly of mylonized volcanic rocks, tuff and strongly fragmented pyroclastic rocks.

基质主要有糜棱岩化的火山岩、凝灰岩和破碎强烈的火山碎屑岩。

What it saw were volcanic rocks, which spectrometers indicated were composed of olivine and pyroxene, minerals broken down by even the barest amount of liquid water.

它看到的是火山岩，质谱仪显示组成是橄榄石和辉石，而这些矿物只要碰上一丁点儿液态水就会瓦解。

The dyke swarms can be divided into pyroxenite, diabase, gabbro-diabase. They, together with the snychronogenic trachyte and basalt distributed in the area, constitute a suite of bimodal volcanic rock association, indicating that an extension event of the crust occurred in this area during the end of Early- Paleozoic.

该岩墙群主要岩石包括有辉石岩、辉绿岩以及辉长辉绿岩，它们与该区同时代粗面岩和玄武岩类一同构成本区一套具双峰式火山岩特征的岩石组合，指示了该区在早古生代末期曾发生一次地壳伸展扩张事件。

Taking the Late Mesozoic basic-intermediate dike swarms from this area as the main object, we have studied their Petrology, Geochemistry and Isotopic Chronology, and discussed the property of their magmatic source, tectonic setting and origin as well. The significant conclusions acquired are as follows: 1, The Late Mesozoic dike from the coastland of Fujian Province appears as clusters, intruding into the Late Mesozoic granite or volcanic rocks, and the lithologies are diabase, hornblende diabase and quartz-diorite etc, mainly diabase. The mode of their occurrence is mainly precipitous and they tend towards NE, approximately EW or NNE. The dike swarms did not suffer metamorphose or distortion, holding the stress state as the dike formed.

本论文以该地区晚中生代中–基性岩墙群为主要对象，研究了它们的岩石学、地球化学及同位素年代学等，对岩浆源区的性质、构造环境、成因等进行了讨论，获得以下重要认识： 1、福建沿海地区晚中生代中–基性岩墙成群产出，侵入到晚中生代花岗岩及火山岩中，岩性有辉绿岩、角闪辉绿岩和石英闪长岩等，以辉绿岩类为主，产状较陡，北东、近东西及北北东走向，大多未发生变质或变形，保持了岩墙形成时的应力状态。

The key technique to determine the ages of young volcanic rocks by K-Ar and 40Ar- 39Ar methods is how to avoid effects of excess argon and to raise the relative component of radiogenic argon.

用K -Ar和4 0 Ar- 39Ar方法测定年轻火山岩年龄的技术关键在于如何有效规避过剩氩的影响和提高放射成因氩的相对含量。

The main two cycles of the Xiangshan volcanic rocks and subsequent subvolcanic rocks have low ε〓 value (-7.46～-9.40), high initial 〓Sr/〓Sr ratio (0.70801～0.71201), old Nd model ages (1.54～1.70Ga) and relatively riched in radiogenic Pb.

相山两旋回火山岩及火山期后的次火山岩具有较低的ε〓值(-7.46～-9.40)、较高的I〓值(0.70801～0.71201)和较古老的Nd模式年龄(1.54～1.70Ga)，且相对富集放射成因铅。

Rarotonga is particularly dramatic, a volcanic remnant with a mountainous interior made up of dark green peaks, razorback ridges and sheer cliffs.

Rarotonga格外引人注意，深绿色的顶峰，削尖的山脊和陡峭的崖壁是火山内部喷发的遗迹。

This was proven in the paper by comparing the reddening of the sky following major volcanic eruptions.

这个结论是通过比较重大火山爆发事件后天空变红的程度得出的。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。