TABLE 1.
Summary of sample characteristics and analyses performed in this study
| Sample name | GeoB no.a | Location | Sampling area | Sample description | Sampling core type (depth [cm]) | Water depth (m) | Analysis(es) |
|---|---|---|---|---|---|---|---|
| Oily sediment | 19351-14 | 21°53.964′N, 93°26.226′W | Chapopote | Oily sediment in the vicinity of the asphalt volcano | Push (1–10) | 2,925 | Geochemical analysis 16S rRNA gene tag sequencing, microscopy visualization, cell counting, metagenomics |
| Asphalt flow | 19345‐1 | 21°53.964′N, 93°26.226′W | Chapopote | Solid and fresh asphalt from asphalt deposits | Gravity (40) | 2,926 | Geochemical analysis |
| Ambient sediment | 19351-5 | 21°53.954′N, 93°26.261′W | Chapopote | Sediment not affected by oil or gas | Push (1–10) | 2,905 | 16S rRNA gene tag sequencing, cell counting |
| Asphalt sediment | 19331-1 | 22°01.354′N, 93°14.809′W | Mictlan | Sediment with solid asphalt pieces | Gravity (135) | 3,092 | 16S rRNA gene tag sequencing, cell counting, metagenomics |
a
Permanent identifier.