clast 中文意思是什麼

clast 解釋
碎屑；巖粒
  1. The formation of a tight syncline in the tuchengzi formation is depicted accurately. 3. there are three main clast types in the conglomerate : andesite, limestone, and dolomite

    4 、確定了土城子組礫巖中的三種主要礫石成分（安山巖、灰巖和白雲巖礫石）的來源。
  2. Magnetism of drilling coral reef and coral clast from yongshu atoll of nansha islands, southern south china sea

    南沙群島永暑礁鉆井珊瑚礁和珊瑚碎屑的磁學分析
  3. The tuchengzi formation mainly consists of carbonate ( limestone and dolomite ) clast conglomerate characterized by poorly sorted and poorly rounded clasts, which shows that the deposition of the tuchengzi formation is closely associated with late jurassic tectonism

    礫巖的成分和結構成熟度都表明它的形成與劇烈的構造活動緊密相關，是研究區內晚侏羅世時期強烈構造變動的沉積記錄。
  4. By the application of the method in eighteen wells in the western depression of sichuan basin, it achieves good effect in the recognition of low permeability and low porosity tight clast of the western depression of sichuan basin

    通過對川西坳陷十八口井的實際應用，此方法在低孔低滲的緻密碎屑巖巖性劃分中取得了良好的效果。
  5. The mineral rock - silica rock mostly composes of three kinds of silica qualities, and the first structure jasper silica rock, the second icrocrystal quartzite, the third the quartz grain clast. cement is carbonate, contain a little amount carbonate loach. silica rock, commonly assume edge angle or hypo - edge angle

    區內的含礦巖石?硅質巖主要由三種硅質成分構成，第一種為顯脫玻?霏細結構的碧玉質硅質巖，第二種為微晶石英巖，第三種為石英顆粒內碎屑。
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