Trace and major element concentrations of mineral phases present in ETZ-13 (alkaline basalt of the main Ethiopian rift) and glass/mineral compositions in the products of experiments conducted at different P-T-XH2O in an internally heated autoclave using this basalt.

We have carried out experiments on a basalt from the main Ethiopian Rift to assess its pre-eruptive conditions in the magma chamber. The files contain all the analyses carried out on the starting material (basalt) and the products of the experiment, for both the glassy and mineral phases. Several experiments were carried out at temperatures between 1080°C and 975°C, mainly at 2 kbar and under reduced conditions. The age spectrum of the basalt used (40Ar/39Ar) is also presented.

本研究以采自埃塞俄比亚主裂谷带的玄武岩为实验对象，旨在厘清其在岩浆房内的喷发前物理化学条件。本数据集涵盖针对实验起始原料（玄武岩）以及实验产物的全部分析结果，覆盖玻璃质相与矿物相两类组分。实验共设置多组条件，温度区间为975℃至1080℃，实验压力多为2千巴（kbar），且处于还原环境中。本次所用玄武岩的40Ar/39Ar年龄谱数据也已一并提供。