概括
从潜地中释放的水是复杂的. 实验表明,两体脱水和其他矿物反应在广泛的深度范围内释放水,影响了潜水带火山活动.
科学领域:
- 地质化学 地质化学
- 石化学 石化学是一门学科.
- 矿物物理 矿物物理
背景情况:
- 水在俯冲区火山活动中的作用至关重要,但人们对其了解甚少.
- 之前的假设集中在单次压力下两生物脱水,实验数据有限.
- 沉浮板块中涉及其他含水矿物的反应在很大程度上被忽视了.
研究的目的:
- 为了研究从海面地中释放的水的压力-温度条件.
- 为了确定两生物脱水发生的深度间隔.
- 评估其他含水矿物质对潜水区水运输的贡献.
主要方法:
- 在海底玄武岩上进行的石油学实验,在相关的潜水带压力-温度条件下进行.
- 对多种含水矿物质 (,,表皮,化物,劳森酸盐) 的脱水反应的分析.
主要成果:
- 两体脱水发生在显著的深度间隔 (至少20公里),而不是单一的压力.
- 其他含水矿物质也在广泛的深度范围内释放水.
- 这些反应共同促进了深入地幔的水运输.
结论:
- 潜水带的水释放是一个分布式的过程,在相当深处延伸.
- 多种含水矿物质脱水反应对于水循环至关重要.
- 这种理解完善了俯冲区火山运动和地幔转层运动的模型.
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