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(guò)對(duì)喜山期巖甲正長(zhǎng)斑巖接觸帶成礦地質(zhì)條件進(jìn)行的分析,認(rèn)為巖甲正長(zhǎng)斑巖的接觸帶及其旁側(cè)構(gòu)造裂隙系統(tǒng)具備形成金礦的有利條件。
Keywords gold depesit;the metallogenetic geologilcal condition;orthophyre;YanJia;
金礦床;成礦地質(zhì)條件;正長(zhǎng)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.
大伙房水庫(kù)輸水工程隧道主洞線長(zhǎng)85.;4km;穿越的地層有太古界混合片麻巖; 元古界石英巖、大理巖;