2019年第4期目录
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封面故事：南秦岭佛坪地区混合岩化现象。佛坪地区以高级变质岩的穹状隆升出露为特点，广泛发育变质深熔、岩浆作用及多期变形。通过对混合岩、麻粒岩、变泥质岩以及相关侵入体进行的高精度系统定年，构架了佛坪地区乃至南秦岭构造带的早中生代演化史。在本地区首次将变质深熔与岩浆作用和构造变形研究相结合，从而依据年代学证据厘定了该地区造山演化的进程，并将变质作用时代限定在岩浆侵位时代之后，为精确构建秦岭造山带中生代演化模型提供了参考。该项研究为造山带演化研究提供了新视角，详见本期545-562页。(图片提供：刘志慧)
Cover Story：Migmatization in the Foping area of the South Qinling belt. The Foping area is characterized by domal lifting of high grade metamorphic rocks and has undergone partial melting, magmatism and multiple deformations. High precision dating of migmatite, granulite, metapelite and related intrusions was used to define the Early Mesozoic evolution history of the Foping area and even the South Qinling belt. It is for the first time that an orogenic process was defined by using combined dating of anataxis, magmatism and tectonism in this area. The result shows that the metamorphism occurred later than the magmatism, which may affect the establishment of tectonic model of the Qinling orogen. This research provides a new perspective for orogeny research. For details, see pp. 545-562 of this issue. (Photo by LIU Zhi-hui)
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