tensile test

During late Mesozoic-Cenozoic, HYS inversion structure in Tuha basin underwent the following main tectonic evolution phases: tensile stretch, compressed uplifting, extensional depression and severely compressed folding.

吐哈盆地HYS构造从晚中生代至新生代经历了拉张伸展期、挤压抬升期、伸展拗陷期和强烈挤压褶皱期等演化阶段。

A suite of volcanic associations with the flysch sediments derived from recycled orogens was successively accumulated in the basin during the Late Triassic due to the extension and convergence of the Garze Litang Ocean and the convergence and collision of the Jinshajiang Ocean.

乡城弧间盆地在晚三叠世时受甘孜理塘洋由拉张到汇聚和金沙江洋由汇聚到碰撞的影响，先后堆积了由拉张沉降到汇聚抬升的火山岩系列组合，同时伴随着来自再旋回造山带物源区的复理石沉积。

The tectonic fractures in the low-permeability reservoir include shear fracture,extension fracture and tension fracture.

低渗透储层中构造成因的裂缝包括剪切裂缝、扩张裂缝和拉张裂缝3种类型。

An approximately quantitative method was used at first time to analyse the basin extensional amount of the Jiyang Depression.

文中首次采用近似定量的方法对济阳坳陷的盆地拉张量进行分析 ,进一步深入探讨了其构造沉降及演化历史 ,并通过分析盆地拉张量对沉积体系、沉积旋回和盆地含油气性的影响 ,讨论了它在油气勘探方面的地质意义。