The rubidium–strontium dating method (Rb–Sr) is a radiometric dating technique, used by scientists to determine the age of rocks and minerals from their content of specific isotopes of …

Rb 、Sr这两种微量元素中通常包含了重要的成岩信息 , 尤其是在研究花岗岩的成因方面具有独特之处 。因为花岗岩岩石中, Sr 通常以类质同象的形式存在于斜长石和磷灰石等早期形成的矿物中 …

Jan 10, 2023 · The Rb/Sr ratios in lacustrine sediments have been used to indicate the intensity of chemical weathering in many works, namely, lower Rb/Sr ratios reflect stronger chemical …

Jan 1, 2014 · Age determination with the Rb–Sr system revolves around the construction of an isochron using minerals or rocks with variable Rb–Sr ratios. Igneous rocks form by the cooling, …

Oct 8, 2017 · Rb-Sr元素地球化学特征 Sr 为+2价碱土金属(第二主族) ，离子半径也较大(1.13Å) ， 故也被多数矿物排斥于结构之中； Sr也溶于水和含水相中，但溶解程度弱于元素Rb ； Sr属中 …

Jan 5, 2025 · Here, we test the in situ Rb-Sr technique on detrital white mica and biotite from basin margin and axis samples in a simple rift basin (Perth Basin, Australia) for which …

Nov 5, 2022 · The Rb-Sr radioactive decay system was the first widely used dating system for rocks using the isochron method. By measuring the 87 Sr/ 86 Sr of several phases and …

Jan 1, 2014 · With the advent and distribution of mass spectrometers, the Rb–Sr technique has become the most important tool in dating igneous rocks throughout Earth’s history and to the …

Sr 为+2价碱土金属(第二主族)，离子半径也较大(1.13Å)， 故也被多数矿物排斥于结构之中； Sr也溶于水和含水相中，但溶解程度弱于元素Rb； Sr属中等程度不相容元素； Sr的离子半径与元 …

May 7, 2017 · Sr-Ca发生类质同象的其它矿物有方解石、石膏、磷灰石和榍石； Sr趋于在地壳中发生相对于地幔含量的富集作用，但其富集程度小于Rb。 Rb/Sr ratios for various rocks: …