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构造地球化学,是地球科学新的分支学科,主要研究构造运动与物质运动之间的关系。构造地球化学高温高压模拟试验,就是根据野外地质调查研究及室内分析鉴定资料提出的试验方案,进行试验。 构造地球化学高温高压模拟试验,包括样品制备,高温高压试验及试验前后样品观察对比研究等三个部分。 构造地球化学高温高压模拟试验,获得以下初步结果:(1)在温度、压力较低的情况下,岩石、矿物常表现为弹性变形和脆性破裂;(2)随着温度、压力的增加,不仅岩石、矿物的结构、构造变化明显,而且某些矿物的反射率、多色性、波状消光均有明显变化,甚至某些矿物的成分也有变化;(3)将高温高压试验后与试验前黑云母进行电子探针分析,其成分变化明显;同时进行穆斯堡尔谱分析,发现高温高压试验后黑云母中Fe~(3+)明显增多。
Structural geochemistry, is a new branch of earth science disciplines, the main research tectonic movement and the relationship between material movement. Tectonic geochemistry of high temperature and high pressure simulation test is based on field geological research and laboratory analysis of the proposed identification of the test program, the test. Tectonic geochemical high temperature and high pressure simulation tests, including sample preparation, high temperature and high pressure test and comparative observation of the sample before and after the test three parts. Tectonic geochemical high temperature and high pressure simulation test, the following preliminary results are obtained: (1) Rock and mineral often show elastic deformation and brittle fracture under the conditions of low temperature and pressure; (2) With the increase of temperature and pressure, not only The structure and tectonic changes of rocks and minerals are obvious, and the reflectivity, polychromaticity and wavy extinction of some minerals are obviously changed, and even the composition of some minerals also changes. (3) After the high temperature and high pressure test and the pre-test black Mica by electronic probe analysis, the composition changes significantly; at the same time Mossbauer spectroscopy and found that after the high temperature and high pressure biotite Fe 3 (3) increased significantly.