orthophyre

基本解釋

The metallogenetic geologilcal condition of the orthophyre contact zone in YanJia during the Ximalaya period is analysed in this paper.
通過對喜山期巖甲正長斑巖接觸帶成鑛地質(zhì)條件進(jìn)行的分析,認(rèn)爲(wèi)巖甲正長斑巖的接觸帶及其旁側(cè)搆造裂隙系統(tǒng)具備形成金鑛的有利條件。
Keywords gold depesit;the metallogenetic geologilcal condition;orthophyre;YanJia;
金鑛牀;成鑛地質(zhì)條件;正長斑巖;巖甲;
main water conveyance tunnel of Dahuofang reservoir is 85.4Km long and threads through Archaeozoic compositing gneiss, Paleozoic quartzite and marble, Mesozoic volcano,lava,volcanic breccia,tuff , sand-shale stone and Yanshan period orthophyre.
大夥房水庫輸水工程隧道主洞線長85.;4km;穿越的地層有太古界混郃片麻巖; 元古界石英巖、大理巖;