Sentences with phrase «along surface fractures»
NASA researchers triggered international headlines in 1996 when they discovered, among other possible indicators of life, traces of polycyclic aromatic hydrocarbons (multiringed carbon molecules found in living cells) along surface fractures in ALH84001.
https://www.scientificamerican.com/ Not exact matches
On its way toward the surface the magmatic fluids cool and deposit copper in the fractured rocks forming giant metal deposits such as those exploited along the Andean Cordillera.
These fractures were not along grain boundaries or other surfaces of weakness, as one would expect.
I wonder if the described mechanism — CO2 making a hydrogen bond at a surface, then flipping along a fracture plane penetrating deeper into a crystalline material — also works on calcite and aragonite?