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花斑岩

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Any of several varieties of quartz or feldspar flecked with particles of mica, hematite, or other materials.

花斑岩一种细晶的花斑岩,带有不规则交生的石英和长石的基质

A fine-grained granite porphyry having a groundmass with irregular intergrowths of quartz and feldspar.

花斑岩一种细晶的花斑岩,带有不规则交生的石英和长石的基质

Whole-rock Rb-Sr isochron age of 114Ma in Yanbei granite porphyry and single grained zircon U-Pb age of 138Ma in Tashan granite porphyry indicate that these two tin-bearing porphyry both are the products of Late Yenshan magmatic activity.

岩背花岗斑岩的全岩 Rb-Sr 等时线年龄(114Ma)和塌山花岗斑岩颗粒锆岩 U-Pb 年龄(138Ma)表明,这两个含锡花岗斑岩都是燕山晚期岩浆活动的产物。

40Ar/39Ar data of quartz from the granite porphyry and from the quartz veins in the granite porphyry range from 187.87±1.53Ma to 244.88±2.48 Ma, indicating products of structural hydrothermal fluids of Late Hercynian, Indosinian or Early Yanshanian perods.

花岗斑岩和花岗斑岩内的石英脉体中石英样品的40Ar/39Ar年龄数据表明户,40Ar/39Ar坪年龄值在187.87±1.53 Ma至244.88±2.48 Ma之间,是加里东期花岗斑岩成岩作用之后,海西、印支或者燕山早期多期构造热液作用的产物。

A fine-grained, light-colored granitic rock consisting primarily of orthoclase and quartz .

花斑岩一种细晶的花斑岩,带有不规则交生的石英和长石的基质

The orebodies of the Gongpoquan copper orefield occur in the quartz dioritic porphyry body, granodioritic porphyrite body and dacitc porphyry body.

公婆泉铜矿矿体的赋矿围岩主要为石英闪长玢岩、花岗闪长斑岩和英安斑岩,这些含铜斑岩体形成于晚志留-早泥盆世板块俯冲碰撞过程中,受断裂和火山机构控制。

The granitic enclaves in the central-facies porphyroblastic lava are subvolcanic rocks with forming age of 134.2±1.9Ma. There is another intrusion of subvolcanic rhyodacitic porphyry with age of 136.0±2.6Ma, in the contact zone of the two volcanic cycles in the western part of the Xiangshan complex. The U-Pb ages of the sub-quartz-monzonite porphyry and lamprophyre are 129.5±2.0Ma and 125.1±3.1Ma, respectively. This suggests that the extension in the Xiangshan region, began in K〓, was week, and earlier than that in the coastal region of Zhejiang and Fujian provinces. Extension in K〓 in Xiangshan and neighboring regions was much stronger, forming NE striking large red-downfaulted-basins.

相山中心相碎斑熔岩中的花岗质包体属次火山岩,其成岩年龄为134.2±1.9Ma,在相山西部两火山旋回的界面之间,存在另一类次火山岩的侵位,其成岩年龄为136.0±2.6Ma,岩性为次流纹英安斑岩;次石英二长斑岩及煌斑岩的成岩年龄分别为129.5±2.0Ma及125.1±3.1Ma,说明相山地区的伸展、裂解作用明显早于浙、闽沿海,在K〓就开始了,但规模并不是很大;而K〓时期的拉张作用在相山及其邻区表现的更为强烈,形成了大面积的呈北东向展布的红色断陷盆地。

High pressure and temperature experiment show that lamprophyric melt and orthophyric melt mix with each other under high pressure and seperate under low-pressure.

结合哀牢山断裂带富碱侵入岩的地质地球化学资料,论证了煌斑岩与富碱侵入岩为富集地幔不同部分熔融程度的产物;高温高压实验表明,煌斑岩熔体和花岗斑岩熔体在高压条件下发生混合,低压条件下出班分离,加上有关的地球化学判别,推测岩浆混合作用是本区煌斑岩与花岗斑岩(富碱侵入岩母岩浆同化分异结晶作用的产物)密切共生的主要因素。

Xiangshan volcano-intrusive complexes is the wall rock of the biggest volcanic-rock uranium ore deposit in China, and the main body is rhyolitic porphyroclastic lava, accompanied by hypahyssal or ultra-hypabyssal intrusive rocks such as dacite-porphyry and granite-porphyry Jiulongzhang volcano-intrusive complexes are dominantly rhyolitic welded tuff, accompanied by dacite-porphyry and quartz monzonite-porphyry, and so on, and the uranium resources are being assessed.

相山火山-侵入杂岩是华南地区最大的火山岩型铀矿赋矿围岩,其主体岩石为流纹质碎斑熔岩,浅成-超浅成侵入岩有英安斑岩、花岗斑岩等;九龙嶂火山-侵入杂岩的铀资源潜力尚待评价,主体岩石为流纹质熔结凝灰岩,浅成-超浅成侵入岩有英安斑岩、石英二长斑岩等。

This deposit should be porphyry copper deposit, the magmatic rocks related tomineralization mainly include quartz diorite porphyry and granodiorite porphyry. Thedeposit developed in the environment of epi-middle-low temperture.

该矿床为斑岩型铜矿,与成矿有关的岩体为花岗闪长斑岩和石英闪长斑岩,矿床形成于浅成中低温环境。

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