Geospeedometry: An Extension of Geothermometry
Geospeedometry: An Extension of Geothermometry
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DOI：
10.1007/978-1-4612-5587-1_3
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发表时间：
1983-03
期刊：
影响因子：
3.2
通讯作者：
A. Lasaga
中科院分区：
文献类型：
--
作者：
A. Lasaga
岩石学的基本目标之一是将观察到的矿物组合与它们以前的温度-压力历史联系起来。为了评估以前的热历史，我们依赖于对热力学和相平衡的理解。假设今天测量的各种矿物及其化学成分将揭示具有重要地质意义的温度和压力。如果在很大一部分矿物组合上达到并保存了平衡，这一过程是非常有效的。然而，在后一种情况下，由于平衡的本质，之前或之后的任何过程的影响都完全消失了。重要的一点是，通过使用热力学，岩石的动力学或历史立即被降级为次要作用。
One of the basic aims of petrology is to relate observed mineral assemblages to their previous temperature-pressure history. To assess the previous thermal history, we have relied on an understanding of thermodynamics and phase equilibria. The assumption is made that the various minerals and their chemical compositions measured today will reveal a temperature and pressure which are geologically significant. This procedure is quite valid if equilibrium is achieved and preserved over significant portions of the mineral assemblage. However, in this latter case, by the very nature of equilibrium, effects of any previous or posterior processes are completely lost. An important point is that, by the use of thermodynamics, the dynamics or history of a rock is immediately subjugated to a secondary role.