Table 3.

SIMPER analysis of microbial communities from H₂ + CO₂ enrichments using rock samples from different depth.

Taxon	Average dissimilarity	Contribution %	Cumulative %
Comamonas	20.11	13.72	13.72
Burkholderia-Caballeronia-Paraburkholderia	16.64	11.3	25.02
Klebsiella	9.88	6.74	31.76
Enterobacteriaceae	7.73	5.24	37
Enterobacter	6.59	4.51	41.51
Ralstonia	6.62	4.42	45.93
Burkholderiaceae	7.63	4.14	50.07
Pseudomonas	0.88	2.42	52.49
Thaumarchaeota_Group1.1 c	0.79	2.1	54.59
Methyloversatilis	0.72	2.05	56.64
Rhodanobacter	1.00	1.77	58.41
Cloacibacterium	0.009	1.55	59.96
Conexibacteria	0.27	1.42	61.38
Pseudarcicella	0.38	1.13	62.51
Corynebacterium 1	0.41	0.93	63.44