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Discussion On The Distribution Of The Mango

Posted on:2017-02-16Degree:MasterType:Thesis
Country:ChinaCandidate:W J ShangFull Text:PDF
GTID:2270330482483892Subject:Geological Engineering
Abstract/Summary:PDF Full Text Request
Meng Yejing group potash deposit is located in China’s Yunnan Lanping Simao basin, is currently in China found the only ancient solid potash deposit, has the characteristics of small scale and low reserves. Because of the complexity of geological environment, leading to claim a variety of source material.In evaporite provenance study and primary halite fluid inclusions is important information in evaporation and crystallization process to capture the mother liquor, so they can be well preserved ancient water, and record of salt lake evolution process can provide important quantitative data for Provenance Studies. Therefore, this paper based on native sylvite composition of fluid inclusion study on provenance of,experimental methods for LA-ICP-MS original composition of fluid inclusions in the assay.In view of the previous studies on evaporation of rock salt composition of fluid inclusions is not enough, this paper will focus on the MENGYEJING halite fluid inclusion body composition and khorat plateau potassium salt of the compositions of the inclusions were compared, to explore their correlation.Although obtained by laser ablation inductively coupled plasma mass spectrometry test halite inclusions inclusion brine concentration of absolute instability,the error is large, but between elements has good correlation, the element concentration consistent with the petrographic characteristics, show that the experimental results are quite reliable, the content of each element between the relationship is stable, using relative content between the elements can be brine may have experienced the evolution process and reach the stage of evolution. The experimentally measured Meng Norai Shio deposit of primary halite fluid inclusion body brine composition Na-Mg-K-Ca-Cl, minerals are mainly is also in line with the order of water from the ocean evaporated mineral precipitation, but overall the Mg2+ /Ca2+, K2+/Mg2+ and K2+/Ca2+ value and composition of the Cretaceous sea water has a larger difference, information display the material source of the broader,MENGYEJING by other sources are strongly modified. The west of the basin, theeast side of the Lancang River fault zone, structural stability in the region near the fault is the favorable area of potash deposits.
Keywords/Search Tags:MENGYEJING formation, basin evolution, fluid inclusions, provenance
PDF Full Text Request
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