volcanic breccia 中文意思是什麼
volcanic breccia
解釋
火山角礫巖-
The wall rock of the mine is the third member of aqishan formation, which it is formed by the neutral - acidic volcanic rock and volcanic arenite of calcium - alkala series. the rock is mainly of andesite, quartz andesite, volcanic breccia agglomerate and volcanic breccia
礦床賦礦圍巖為阿奇山組第三巖性段鈣堿系列的中酸性火山巖-火山碎屑巖，主要巖性為安山巖、英安巖、火山角礫熔巖、火山角礫巖等。 -
Primarily summerization on geological characteristics and new progress in scientific research of these deposits are given in this paper, the author proposes that mineralogenesis of mpcd type gold deposit is closely related to meso - neozoic volcanic - subvolcanic action ( cryptoexplosive breccia ), tectonic movement and maturation of organic material
本人概略介紹了其礦床地質特徵、研究現狀及其新進展，並明確提出了該類型金礦床的成礦與中新生代火山-次火山（隱爆角礫巖）作用、構造運動及有機質的作用息息相關。 -
Based on the derivation of metallogenic matters, mineralization and wallrock conditions, the gold deposits are subdivided into three main types : volcanic thermal type, subvolcanic rock - shallow to ultra - shallow porphyry thermal type, and concealed explosive breccia type of gold deposits
根據其金礦成礦物質來源、成礦作用及產出的圍巖條件可劃分為火山熱液型、次火山淺成斑巖熱液型和隱爆角礫巖型金礦床。 -
Abstract : to the principle and project that tu guangazhi proposed in 1990, the gold ore deposits in qinling ( shaanxi ) may be classified into fouowing types : archean high - grade gneiss type, fine grained fragmental rock - carbonate rock - silicilith type, metamorphic fragmental rock type, volcanic rock type, explosive breccia type, intrusive rock exo - and endo - contact zone type. inthis paper, the geological characteristics, metallogenic geological setting, the source of ore - forming materials, digenic mechanism and metallogenetic epoch of gold ore deposits are also discussed
文摘:參照塗光熾先生（ 1990 ）提出的礦床類型劃分原則與金礦分類方案，將陜西秦嶺地區原生金礦劃分為太古界綠巖建造型、細碎屑巖-碳酸鹽巖-硅質巖建造型、變質碎屑巖型、火山巖建造型、隱爆角礫巖型和侵入巖內外接觸型金礦，並對各類型金礦的地質特徵、成礦地質背景、成礦物質來源、礦床形成機制及形成時代等問題進行了論述和討論。
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