【摘要】 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Fe³⁺明显增多。更多还原

【Abstract】 Tectono—geochemistry, a new branch of earth sciences, mainly deals with the relationship between tectonic movements and material motions of the earth. The high T—P tectono-geochemical simulating experiment is performed following a defined program which is based on the field geological observations and the laboratory analysis.The high T—P teetono-geochemical simulating experiment consists of three parts, i. e. sample preparation, experimental operation at high T and P, and observation and comparison of the sample before and after experimentBy high T—P teetono-geochemical simulating experiments we have obtained the following preliminary results: （a） under the conditions of relatively low T and P, rocks and minerals show elastic deformation and brittle fractures; （b） with the increase in T and P, not only the textures and structures of minerals and rocks, but also their reflection index, polychroism, undulate extinction, even composition, have significant ehanges; （c） the electron microprobe analyses of biotite before and after experiment indicate that there is a marked difference in its composition. The Mossbauer spectra of biotite also show Fe³⁺ increase.更多还原