【两广地质调查所特刊】八 - 两广地质调查所编辑部.pdf

篇土壤其厚約二二三公尺稍高)可供膨刻圖章及其他装飾品之用自较事在實驗室研究者為更有興趣兹就所見作中國凍石之研究補遗一篇以便就正於高明焉作廣東西江地質旅行於台山縣斗山斗米發現凍石胍二均生於花网岩内此次旅行得親見其地質情形化學與物理等性質均不舆已知之物相吻合也此問题常在著者心中而未忘也今年春著者舆蒋君溶該處之花岩篇斑狀組織含長石甚多此外尚有石英雲母及角閃石三種花岩之上部已受風化成在顯微下此種凍石為長石細粒所組成有己風化成高嶺士者石英成斑晶現熔像多圻此外又有凍石胍有二均生於花刷岩中前已言之服寬四公尺長三十公尺色而質软(较普通所见者其硬度中國凍石(FglBaolg)著者於十七年夏在北平

LIANG=KWANGTI-CHIIHTLAO-CHA-SO(THE GEOLOGICALSURVEYOFEWANGTUNGKWANGSI) CEUCEIAHUA,DIRECTOR.SPECIALPUBLICATION No.IV.SUPPLEMENTTOAPETROGRAHICAL STUDYOFCHINESE AGALMATOLITE ByLEEHSIOTSING CANTON,CHINA.

一2— II1.Agalmatolite veins andgeologicalcondition.Therearetwoagalmatoliteveinsfoundingranite.The oneis about4metersinwidthand30metersinlength.Thecolouris green with red stains of iron solution.The other has the same size and colour,but contains phenocrysts of weathered feldspar.