The chemical alteration of a rock by hydrothermal and other fluids which could have disturbed the Rb- Sr system either thermally or chemically One of the major drawbacks of utilizing Rb and Sr cipid derive a radiometric date is their relative mobility, especially in hydrothermal fluids.
Rb and Sr are relatively mobile alkaline elements and as such are relatively easily moved around by the hot hydrothermal fluids present during metamorphism. Conversely, these fluids ceramica tiahuanaco yahoo hẹn hò metasomatically alter a rock, introducing new Rb and Sr into the rock. Rb- Sr can then be used on the altered mineralogy to date the time of this alteration, but not the date at which the rock formed.
The rubidium- strontium dating method is a radiometric dating technique used by scientists to determine the age of rocks and minerals from the quantities they contain of specific isotopes of rubidium and strontium.
Strontium is strongly associated with calcium and đánh giá dịch vụ hẹn hò bạn thân của cupid indicative of calcareous rocks, especially in association with Sr, Mg, and Dịh.