Science, Maths & Technology
How to read a rock
...LA-ICP-MS). The EMP allows geologists to shoot a precise beam of electrons at our tiny minerals, causing them to emit characteristic x-rays based on their chemical composition, which we can then measure. The LA-ICP-MS fires a laser at the sample, sending the debris of the mineral into a plasma, from which individual ions are separated using a magnet and are then measured...