Analogue modeling of the internal kinematics of salt diapirs

盐底辟内部运动学的模拟建模

• 批准号: 5416842
• 负责人: Professor Dr. Gernold Zulauf
• 金额: --
• 依托单位: Arbeitsgruppe Strukturgeologie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2004
• 资助国家: 德国
• 起止时间: 2003-12-31 至 2009-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5416842?language=en
• 关键词: Analogue; modeling; internal; kinematics; salt

The present project focuses on building a new deformation apparaturs that will be used to deform rheologically stratified rocks and rock analogues under bulk constriction, at temperatures (7) 300°C, and strain rates (é) ranging from 10-7 - 10-4 s-1. The samples used for the experiments will consist of (1) a weak halite matrix with an intercalated stiff anhydrite layer, and (2) a weak plasticine matrix with an intercalated stiff plasticine layer. Both plasticine matrix and layer will show similar initial geometry, stress exponents, and viscosity ratio between layer and matrix like halite and anhydrite. The deformed samples will be investigated concerning the geometry of folds and boudins of the stiff layer and the mcrofabrics in halite and anhydrite. The major goal of the project ist to show the relation between geometry, rheology and deformation mechanisms to make paleoviscometry possible in cases of bulk and apparent constriction. The experimental results will shed new light on the origin of curtain folds and the mechanisms of diapiric emplacement. Our new data will be of interest to those workers who are dealing with the storage of hazardous waste, the exploitation and mining of rock salt, and petroleum exploration.

本项目的重点是建立一个新的变形apparaturs，将用于变形流变分层岩石和岩石类似物下的体积收缩，温度（7）300°C，应变速率（é）范围从10-7 - 10-4 s-1。用于实验的样品将由（1）具有插层硬石膏层的弱岩盐基质和（2）具有插层硬橡皮泥层的弱橡皮泥基质组成。粘土基质和层将显示类似的初始几何形状、应力指数和层与基质之间的粘度比，如岩盐和硬石膏。变形后的样品将研究硬层的褶皱和石香肠的几何形状以及岩盐和硬石膏中的微组构。该项目的主要目标是显示几何学、流变学和变形机制之间的关系，以使在体积和表观收缩情况下的古粘度平衡成为可能。实验结果将为幕褶的成因和底辟侵位机制提供新的认识。我们的新数据将对那些处理危险废物储存、岩盐开采和开采以及石油勘探的工人感兴趣。

项目成果

Experimental deformation of a single-layer anhydrite in halite matrix under bulk constriction. Part 1: Geometric and kinematic aspects

岩盐基质中单层硬石膏在体积收缩下的实验变形第 1 部分：几何和运动学方面

• DOI: 10.1016/j.jsg.2009.01.013
• 发表时间: 2009
• 期刊: Journal of Structural Geology
• 影响因子: 3.1
• 作者: Zulauf;Zulauf;Bornemann;Zanella
• 通讯作者: Zanella