1) rapakivite
更长环斑花岗岩
2) rapakivi granites
奥长环斑花岗岩
1.
This paper introduces the connotation of rapakivi texture and geological and geochemical characteristics of rapakivi granites.
本文介绍了环斑结构的含义及奥长环斑花岗岩的地质与地球化学特征。
3) Rapakivi granite
环斑花岗岩
1.
The discovery and significance of the rapakivi granites in Gyisong,Tangra Yumco,Xizang;
西藏当惹雍错吉松环斑花岗岩的发现及地质意义
2.
Petrological characteristics of the Doupangling rapakivi granites;
都庞岭岩体环斑花岗岩的特征
3.
Petrography and geochemistry of the Tataleng rapakivi granite on the northern margin of the Qaidam basin,northwestern China;
柴达木盆地北缘塔塔楞环斑花岗岩的岩相学和地球化学特征
4) granodiorite porphyry
花岗闪长斑岩
1.
SHRIMP U-Pb dating of zircons from granodiorite porphyry gravels in a conglomeratic lithic sandstone sample from this suite of rocks yields a weighted mean age of 314.
对其中含砾岩屑砂岩中花岗闪长斑岩砾石的锆石进行SHRIMPU-Pb定年,获得206Pb/238U加权平均年龄为314Ma±4。
2.
During the late stage of reverse napping,granodiorite porphyry emplaced along the nappe structure and hydrothermal ore-forming solution accumulated and formed gold deposits at favourable positions.
推覆构造形成于 J2-J3,逆冲推覆后期,花岗闪长斑岩沿逆冲推覆构造就位,其所携带的成矿热液在有利部位富集成金矿。
5) plagioclase granite porphyry
斜长花岗斑岩
1.
It was reported that they were the same unit,and all the time denominated biotite plagioclase granite porphyry.
安徽省石屋岩体和岑山岩体在地质产状、形成时代及岩石学特征上十分相似 ,前人将其划为同一单元 ,并一直将其定名为黑云母斜长花岗斑岩。
6) monzogranite-porphyry dike
二长花岗斑岩脉
1.
Zircon SHRIMP U-Pb dating of monzogranite-porphyry dikes in Shengongcun, northern Zhejiang, and its geological implications;
浙北富阳神功村二长花岗斑岩脉SHRIMP锆石U-Pb年龄及其地质意义
补充资料:更长环斑花岗岩
一种花岗岩类的岩石。红色或灰色,常含暗色矿物角闪石和黑云母。它的主要特征是具有一种特殊的斑状结构──更长环斑结构。斑晶为球形-卵形的钾长石(条纹长石、微斜长石),外绕更长石环(个别为钠长石、中长石环)。钾长石斑晶或为具卡氏双晶的单个晶体,或为几个不规则状、扇状晶体组成的集合体。在钾长石斑晶中常见有环状分布的更长石、石英、黑云母、角闪石等矿物包裹体。这种花岗岩的基质矿物主要为石英、钾长石、黑云母,有时还有角闪石。副矿物为锆石、磷灰石、金属矿物等。更长环斑花岗岩是主要形成于前寒武纪时期,与它近似的岩石有更长环斑细晶岩及更长环斑正长岩等。它们常与其他中酸性侵入岩共生。在中国产于北京密云、河北赤城、江西上饶、辽宁桓仁、陕西商县、福建漳州等地。
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