碱性火山岩

裂谷带的地堑之中产出有五元素矿床、碱性火山岩中的块状硫化物型银矿床、沉积岩中的块状硫化物型银矿床、砂岩型铜银矿床。

The five element deposit , the massive sulfide silver deposit in the alkaline volcanic rocks , the massive sulfide silver deposit in the sedimentary rocks and the sandstone copper and silver deposit are located in the graben of rifts .

相对主体拉斑玄武岩，东川碱性火山岩贫REE特别是LREE，推测源区发生过先期熔融事件。

Compared with the dominant tholeiites the alkaline volcanics from Dongchuan district are less enriched in LREE , probably resulting from earlier melting events in their source .

明确早期175~120（11O）Ma为高钾钙碱性火山岩系列且具向酸性岩系列过渡的特征；

The volcanic rocks formed in early stage , from 175-120 ( 117 ) Ma , are high-K calc-alkali series , with a trend of transition to acid rock series .

主要为中、高钾钙碱性火山岩系；

The volcanic rocks are mainly middle and high - k calc-alcaline series .

海底热水沉积铀矿研究&以鄂西北碱性火山岩型与硅灰岩型铀矿为例

Studies of submarine hydrothermal & sedimentary uranium deposits

硫分别来源于岩浆热液、沉积地层和大气降水；海底热水沉积铀矿研究&以鄂西北碱性火山岩型与硅灰岩型铀矿为例

Sulfur was derived from sedimentary strata and meteoric water . STUDIES OF SUBMARINE HYDROTHERMAL & SEDIMENTARY URANIUM DEPOSITS

滇西新生代碱性火山岩、富碱斑岩深源包体岩石学研究

A petrographic study on the hypogenic enclave in Cenozoic alkalic volcanics and rich alkali porphyry of West Yunnan

内蒙古锡林郭勒盟多伦地区张家口组首次发现的碱性火山岩及其地质意义

Discovery of Alkali Volcanic Rocks in the Zhangjiakou Formation of the Duolun Area , Inner Mongolia , and Its Geological Significance

基性、中性、酸性熔岩和火山碎屑岩均有，以拉斑玄武岩、钙碱性火山岩和碱性火山岩系列为主，极少量过碱性火山岩。

The basic , intermediate , acidic lava-and associated volcaniclastic rock are of widespread occurence , which are dominanted by tholeiite , alkali-lime and alkaline volcanic series , and some ultra-alkaline volcanic rock .

福建新生代碱性超基性火山岩地球化学特征及构造意义

Geochemical Features of the Cenozoic Alkaline Ultramafic Volcanic Rock in Fujian and Their Tectonic Significance

甘肃礼县－宕昌地区新生代钾质碱性超基性火山岩的特征及成因

Cenozoic Potassic Alkaline Ultrabasic Volcanic Rocks and Its Genesis in Lixian - Dangchang Area , Gansu Province

拉斑玄武岩质粒玄岩依兰地区黑龙江增生杂岩碱性玄武质火山碎屑岩中钠质闪石特征及成因探讨

Characteristics and genesis of sodium amphiboles in alkaline basaltic pyroclastic debris of Heilongjiang accretionary complexes in Yilan area

一些特殊的岩石类型，如埃达克岩、橄榄玄粗岩及碱性岩与陆相火山岩矿床有密切联系。

Some special rock types such as adakite , shoshonite and alkali rocks are closely related to continental volcanic rocks deposits .

本文介绍了甘肃礼县地区碱性超基性火山岩的岩相学、岩石化学、过渡金属元素和稀土元素地球化学特征并探讨了其岩石成因。

This paper introduces the petrographical , petrochemical , transitional metal elements and REE geochemical characteristics of alkali ultrabasic volcanic rocks from Lixian area , Gansu province and discusses the petrogenesis .

民乐铜矿产于中三叠统钙碱性、碱性系列火山碎屑岩、熔岩、次火山岩（英安斑岩）中。

The Minle Cu deposit is distributed in the middle Triassic calc - alkalic , alkalic volcaniclastic rock , lava and subvolcanic rock ( dacite porphyry ) .