material source

The studies indicate that the material source of this type of lateritic gold deposit is Au-rich rocks and/ or ores with high siliceous material ( quartz SiO2) and rich ferruginous material ( pyrite etc.).

研究表明，本类红土型金矿的物质来源是高硅质（石英）、富铁质（黄铁矿等）的富金矿（岩）石；

Especially with the pressure from living environment was ever-increasing, ecology consequence was indicated that the forest will be one of primary material source in the industrial society. The vital function is a new understanding to forest and sustaining and program development of humanity.

特别是随着人类对来自生存环境压力的与日俱增，森林作为工业社会的主要材料来源之一的生态学后果的凸现，人类对森林与林业和人类生存与发展的重要作用产生了新的认识；

In the plasma system, there were C2H2 and CH3~, the material source to produce carbon film.

在等离子体反应体系中存在着碳膜生存的物质源CH2和CH3。

In this paper, we have a discussion about the physical, chemical qualities and geochemical behaviour of K and the related material, the material source of K salt, the metamorphism, crystalline differentiation, metallogenetic conditions and mechanism of salt brine.

讨论钾及其有关物质的理化性质和地化行为，钾盐的物质来源，盐卤的变质、结晶分异、成矿条件和机制。

At present, the main materials in the tidal bank process in the area are the sediments on the tidal bank, and the sediments from the Zhangweixin River are the main material source for this area.

目前本区潮滩过程的主要物质是潮滩本身的沉积物，漳卫新河的来沙是本区的主要物源。

Diagenesis and mineralization of the metallogenetic series occurred in tectonic environment of the subduction of pacific plate lead to crust thickening, material source of diagenesis and mineralization is from the lower crust or upper mantle and ore-forming fluid is derived meanly from atmospheric precipitation and partly magmatic.

该成矿系列成岩成矿作用发生于太平洋板块俯冲体制下的地壳加厚构造环境，成岩成矿物质主要来自下地壳或上地幔，成矿流体主要来自大气降水，部分来自岩浆。

The material source of active carbon production is limited.

生产活性碳的原料来源受到一定的限制。

The U-Pb age of clastic zircons from ore-bearing sandstone is 283 ± 67Ma, which is corresponding to the age of gneissic granite of the provenance area indicating the material source of uraniferous sandstone.

赋矿地层西山窑组（J（2x））砂体碎屑锆石U-Pb等时线年龄为283±67Ma，证实花岗岩侵入体是含矿砂体的主要物质来源。

During travelling, creation passion and inspiration are liable to be aroused which in turn serve as the material source for creation and help foster the artist's character and unique style.

第三，游历最能触发创作激情和灵感，提供创作素材，塑造艺术家的人品，形成独特的风格，也是创作的重要条件。