本文選題：貴州 + 羅甸軟玉礦��； 參考：《貴州大學(xué)》2015年碩士論文

【摘要】：羅甸玉是貴州首次發(fā)現(xiàn)的軟玉,當前已取得一定研究成果,只是多數(shù)研究以寶石礦物學(xué)特征為主,礦床地質(zhì)特征、形成條件、成因及分布規(guī)律研究欠缺。為此,本次研究在前人工作的基礎(chǔ)上,著重突出羅甸玉礦床學(xué)的研究。以野外地質(zhì)調(diào)查為基礎(chǔ),采用偏光顯微鏡、掃描電鏡、X熒光光譜儀等測試手段,以地球化學(xué)為主要研究方法,探討羅甸玉礦物組成、結(jié)構(gòu)、化學(xué)成分特征,并對其成因、控礦因素及成礦規(guī)律有了新的認識,取得如下成果:(1)羅甸玉產(chǎn)于輝綠巖體與二疊系四大寨組灰?guī)r的外接觸帶上,礦體以層狀、似層狀、透鏡狀、不規(guī)則團塊狀產(chǎn)于硅質(zhì)巖帶或大理巖帶中。玉石按顏色分為白玉、青玉、青白玉和花斑玉,以花斑玉居多。(2)羅甸玉的主要組成礦物為透閃石,含量在90%以上,透閃石多以纖維狀產(chǎn)出,集合體呈束狀、放射狀。玉石結(jié)構(gòu)復(fù)雜,以變晶交織結(jié)構(gòu)為主,包括纖維交織結(jié)構(gòu)、纖維狀-氈狀變晶交織結(jié)構(gòu)、纖維狀-柱狀變晶結(jié)構(gòu)、片狀交織結(jié)構(gòu)。(3)羅甸玉可能有兩種不同的成礦方式,一種在巖漿熱驅(qū)動下,灰?guī)r中CaO、MgO與硅質(zhì)條帶或燧石中SiO2交代混合,形成CaO、MgO、SiO2比例合適的透閃石礦物。另一種是巖漿帶來大量氣水熱液,與灰?guī)r、硅質(zhì)條帶灰?guī)r發(fā)生交代作用,形成大理巖、透閃石。(4)玉石成礦主要受地層和巖體的控制,成礦由北向南逐漸變好,預(yù)測在羅甸、望謨南面,廣西北面輝綠巖出露帶的灰?guī)r、燧石灰?guī)r中有望發(fā)現(xiàn)較好的軟玉礦。
[Abstract]:Luodian jade is the first discovered nephrite in Guizhou Province, but most of the researches are mainly based on the mineralogical characteristics of precious stones, but the geological characteristics, formation conditions, genesis and distribution of the deposit are not studied. Therefore, on the basis of previous work, this study focuses on the study of Luodian jade deposit. Based on the field geological survey, the mineral composition, structure and chemical composition of Luodian jade were studied by means of polarizing microscope, scanning electron microscope and X-ray fluorescence spectrometer. The mineral composition, structure and chemical composition of Luodian jade were discussed. A new understanding of ore-controlling factors and metallogenic regularity has been obtained, and the following results have been obtained: 1) Luodian jade occurs in the outer contact zone between diabase body and Permian Sidazhai formation limestone. The orebody is layered, bedded and lenticular. Irregular masses occur in siliceous or marble zones. The main mineral of Luodian jade is tremolite, the content of which is above 90%. The tremolite is mostly fibrous, and the aggregate is bunchy and radial. The structure of jadeite is complex, and the interwoven structure mainly consists of fiber interleaved structure, fibre-felt-shaped interleaved structure, fibre-columnar structure, flake interleaved structure.) Luodian jade may have two different metallogenic ways. A kind of tremolite mineral with suitable ratio of CaOOMgO / SiO2 is formed by mixing CaOG MgO in limestone with SiO2 in siliceous belt or in flint driven by magmatic heat. The other is that magma brings a large amount of gas-water hydrothermal solution, and metasomatism with limestone and siliceous belt limestone, forming marble, tremolite. 4) the mineralization of jade is mainly controlled by strata and rock mass, and the mineralization gradually becomes better from north to south, and it is predicted that the mineralization will be better in Luodian. To the south of Wangmo, the limestone of diabase outcrop zone in the north of Guangxi is expected to find better nephrite ore in the flint limestone.
【學(xué)位授予單位】：貴州大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P619.28

【參考文獻】

相關(guān)期刊論文 前10條

1 歐陽自遠,鄒永廖,劉建忠,王世杰,李春來,徐琳;地球化學(xué)若干領(lǐng)域的回顧與展望[J];地球科學(xué)進展;2001年05期

2 楊林;王兵;王雷;譚靖;王亮;;貴州羅甸玉特征初步研究[J];貴州地質(zhì);2011年04期

3 魯力;邊智虹;王芳;魏均啟;冉曉紅;;不同產(chǎn)地軟玉品種的礦物組成、顯微結(jié)構(gòu)及表觀特征的對比研究[J];寶石和寶石學(xué)雜志;2014年02期

4 劉林林;;羅甸—奇石異礦百花園[J];地球;2000年04期

5 庾莉萍 ,白杉;和田玉:中華文化的載體[J];海內(nèi)與海外;2004年04期

6 童崇光;胡受權(quán);;上揚子地臺區(qū)構(gòu)造演化與油氣資源[J];南方油氣地質(zhì);1995年03期

7 王春云;龍溪軟玉礦床地質(zhì)及物化特征[J];礦產(chǎn)與地質(zhì);1993年03期

8 周征宇;廖宗廷;陳盈;李玉加;馬婷婷;;青海軟玉的巖石礦物學(xué)特征[J];巖礦測試;2008年01期

9 盧保奇,亓利劍,夏義本,周開燦;四川軟玉(透閃石玉)貓眼的礦物學(xué)研究[J];巖石礦物學(xué)雜志;2004年03期

10 樸庭賢;尹京武;閆星光;侯鳳嬌;陳浦浦;聶瀟;王兵;;貴州羅甸玉礦物學(xué)及成分特征[J];巖石礦物學(xué)雜志;2014年S1期

相關(guān)碩士學(xué)位論文 前1條

1 趙曉歡;澳大利亞南澳洲碧玉的寶石礦物學(xué)研究[D];中國地質(zhì)大學(xué)（北京）;2014年

，

本文編號：1969022