Abstract In the Argentera-Mercantour Massif, swarms of high-K calc-alkaline lamprophyres intruded into Carboniferous migmatites and early Permian granites, likely in Permian-Triassic times. The dykes collected multiple magmatic injections, the latest of which of alkaline affinity. Syn-intrusive vesicles and straight chilled margins suggest that the lamprophyres emplaced at a shallow crustal level. Lower greenschist facies mineral assemblages replaced lamprophyre igneous minerals as a result of late-intrusive hydrothermal circulation that occurred soon after the dyke emplacement. The hydrothermal event is constrained at T = 300–350°C and P

中文翻译：

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西阿尔卑斯山 Argentera-Mercantour 地块特提斯大陆分裂和高山碰撞的证据

摘要 在 Argentera-Mercantour 地块，成群的高钾钙碱性斑岩侵入石炭纪混合岩和早二叠世花岗岩，可能发生在二叠纪-三叠纪时期。岩脉采集了多次岩浆注入，其中最近一次为碱性亲和。同侵入性囊泡和直冷边缘表明灯藻位于浅地壳水平。由于岩脉就位后不久发生的晚期侵入热液循环，较低的绿片岩相矿物组合取代了斑岩火成岩矿物。热液事件被限制在 T = 300–350°C 和 P