古火山

福建省中新生代古火山构造基本特征

Basic characteristics of Meso-Cenozoic paleovolcanic structures in Fujian Province

古火山机体的划分与鉴别&以苏、浙、皖为例

The classification and identification of paleovolcanoes , examples from jiangsu , Zhejiang and Anhui

地震分辨率对古火山识别的影响

Seismic resolution dependence of identifying ancient volcanos

浙江中岙古火山热液金矿多阶段成矿及金的富集规律

Multistage and patterns of gold enrichment in the paleovolcanic hydrothermal gold deposit in zhong-ao , Zhejiang Province

对其成因以往主要有陨石冲击和中生代古火山机构两种认识。

There are mainly two views about the genesis of the ring , meteorite impact and Mesozoic paleovolcanic edifice .

现代地质学研究表明，雁荡山是一座具有世界意义的典型的白垩纪流纹质古火山&破火山。

Modern geology studies have shown that Hill is a world with a sense of typical Cretaceous rhyolitic ancient volcano-caldera .

新疆西天山地区的早石炭世古火山机构是形成金矿床的重要构造。

The Early Carboniferous volcanic apparatus is an important metallogenetic structure for formation of gold deposit in the Western Tianshan .

这两种机制的识别，对于预测现代活火山喷发周期，分析古火山活动阶段有重要的意义。

These conclusions are important to analysis of the eruption rhythm of present active volcano and evolution stage of ancient volcano .

埠后古火山机构由早白垩世陆相火山岩和次火山岩组成，铅、锌、铜、硫矿与后者有关。

The Buhou Palaeovolcano is made up of volcanics and subvolcanics of Early Cretaceous continental volcanic cycle , leadzine-copper and sulfur ores are related to the subvolcanics .

四平山门早白垩世流纹岩，具有典型的古火山机构的分布特征，保存着罕见的发育完整的柱状节理。

In Shanmen , Siping , Jilin province , the early Cretaceous rhyolite has typical distributive characteristics of the paleovolcanic apparatus , preserving rare , well-developed prismatic joint .

爱丁堡大学的地质学家萨格登正努力测定南极东部的一个古火山爆发的时间，当时他和他的同事发掘到了古老的冰层。

Sugden , a geologist at the University of edingburgh , was trying to date an ancient volcanic eruption in East Antarctica when he and his colleague uncovered the old ice .

马尔代夫坐落在印度洋中部，由一系列令人难以置信的生长在古火山侧面的古老的珊瑚礁组成。

Situated in the middle of the Indian Ocean , the Maldives is made up of an entire series of incredible ancient coral reefs that grew up along the sides of ancient volcanoes .

小盖州剖面元古宙火山岩具有安山岩岩石成分，由熔结角砾岩、熔岩角砾岩及熔岩组成。

The Proterozoic volcanic rocks in Xiaogaizhou section is composed of rhyakkumulate , la-va breccia and lava with andesitic composition ;

北祁连西段古元古代火山岩是大陆裂谷火山作用的产物，具典型的“双峰式”特征。

In the western section of North Qilian , Paleoproterozoic Era volcanic rock , which is product of Continental rift volcanism , has typical " double peaking " .

古罗马人已经发现火山灰制作的水泥质量更好。

The ancient Romans discovered that volcanic ash made better cement .

萑香洼金矿床产于华北陆块南缘中元古界熊耳群火山岩系中。

Huanxiangwa gold deposit is formed in Proterozoic Xionger group volcanic rock in the southern range of North China landmass .

控制火山岩油藏的主要因素是火山岩岩性、岩相、断裂带、剥蚀带、油源以及古构造背景，火山岩改造型储层的形成是成藏的关键要素。

The key controlling factors of volcanic oil pool include volcanic lithology , lithology facies , fracture , erosion zone , hydrocarbon resource and age-old tectonic background , and the forming of volcanic reconstructive reservoir is the key factor of oil pool forming .