本文選題：構(gòu)造地質(zhì)學(xué)　切入點(diǎn)：褶皺疊加型骨節(jié)狀石香腸　出處：《中國(guó)科技論文》2016年21期

【摘要】：以湖北鐵山褶皺疊加型骨節(jié)狀石香腸為研究對(duì)象,從微觀尺度研究基質(zhì)層的二維應(yīng)變特點(diǎn)。通過(guò)微觀應(yīng)變測(cè)量與統(tǒng)計(jì)分析,研究褶皺疊加型骨節(jié)狀石香腸的成因機(jī)制。使用Straindesk軟件對(duì)石香腸基質(zhì)層進(jìn)行有限應(yīng)變測(cè)量分析和統(tǒng)計(jì),使用Surfer軟件生成運(yùn)動(dòng)學(xué)渦度等值線分布圖、真應(yīng)變差等值線分布圖、巖層厚度比等值線分布圖。對(duì)所獲得數(shù)據(jù)資料的研究表明,早期的2次純剪切作用形成骨節(jié)狀石香腸構(gòu)造,晚期受到縱彎褶皺作用,由于巖層間力學(xué)性質(zhì)的差異,在香腸構(gòu)造的基礎(chǔ)上疊加褶皺。該褶皺疊加型骨節(jié)狀石香腸的基質(zhì)層應(yīng)變受能干層控制,基質(zhì)層的應(yīng)變大小與其距離能干層的遠(yuǎn)近有負(fù)相關(guān)趨勢(shì)。由于骨節(jié)縫處脈體的能干性較香腸體更強(qiáng),因此形成骨節(jié)頸。
[Abstract]:This paper studies the two-dimensional strain characteristics of the matrix layer in Hubei Tieshan fold superposition sausage. The microcosmic strain measurement and statistical analysis are used to study the characteristics of the two-dimensional strain of the matrix. In this paper, the genetic mechanism of folded superposition bone sausage is studied. The finite strain measurement and statistics of the base layer of the sausage are carried out with Straindesk software, and the kinematic vorticity isoline distribution map and the true strain difference isoline distribution map are generated by using Surfer software. The study of the obtained data shows that the sausage structure formed by the two early pure shear processes was subjected to longitudinal bending fold in the late stage, due to the difference of the mechanical properties between the strata. Superimposed folds on the basis of sausage structure. The matrix strain of the superimposed bone nodal sausage is controlled by the competent layer. There is a negative correlation between the strain of matrix layer and its distance from the competent layer. Because the ability of veins at the suture of bone is stronger than that of sausage, the neck of bone segment is formed.
【作者單位】： 中國(guó)地質(zhì)大學(xué)(武漢)地球科學(xué)學(xué)院;中國(guó)地質(zhì)大學(xué)(武漢)華中構(gòu)造力學(xué)研究中心;湖北工業(yè)大學(xué)電氣與電子工程學(xué)院;
【分類號(hào)】：P584
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本文編號(hào)：1675496