Chemical and isotopic composition of gas, water, and solids from the 2019-2020 water lake in Halema’uma’u Crater, Kīlauea Volcano, Hawaii: X-Ray Diffraction (XRD) of solids filtered from water samples

Samples of the crater lake water were filtered in the field with a 0.45 micron filter. Subsequently, additional precipitates formed in the solute-rich samples...采用0.45微米滤膜（0.45 micron filter）对火山口湖水体样本进行现场过滤。随后，溶质富集的样本中形成了额外的沉淀物……