Shock-induced Ti-rich melt pockets in a basaltic eucrite Northwest Africa (NWA) 8003 were studied using scanning and transmission electron microscopy. Unique mineral assemblages consisting of clinopyroxene, ilmenite, vestaite, corundum, and kyanite are observed. Among them, vestaite and corundum in NWA 8003 are first reported to occur in eucrite meteorites. Petrographic and chemical evidences indicate that the Ti-rich melt pockets have formed by in-situ melting of ilmenite, plagioclase, pyroxene, and possibly minor silica and apatite nearby. The temperature rise and melting were caused by the high shock impedance contrast at interfaces between ilmenite and other phases with a distinctly lower density. Crystallization pressure, temperature and cooling time of the Ti-rich melt pockets in NWA 8003 are constrained to be ˜0.9–˜10 GPa, ˜1300–˜1730 °C, and < 1 ms (5–50 μm in size), respectively.

使用扫描和透射电子显微镜研究了玄武岩的欧亚大陆西北部（NWA）8003中的激振诱导的富钛熔体袋。观察到独特的矿物组合，包括金刚砂，钛铁矿，钛铁矿，刚玉和蓝晶石。其中，首先报道了NWA 8003中的菱镁石和刚玉发生在珠光体陨石中。岩石学和化学证据表明，富钛熔体的形成是通过钛铁矿，斜长石，辉石以及附近可能存在的少量二氧化硅和磷灰石的原位熔融形成的。温度升高和熔化是由于钛铁矿与其他相（密度明显较低）之间的界面处的高冲击阻抗对比引起的。NWA 8003中富钛熔体腔的结晶压力，温度和冷却时间被限制在〜0.9–〜10 GPa，〜1300–〜1730°C，