" in our study, we did several things. First, we documented the level of methane in the drinking-water wells. Second, we analyzed the isotopes in methane. The geochemical isotope is like a fingerprint in which you identify the source of the methane. And basically you can have two major sources of methane: one, thermogenic, is the methane exploited from deep shale gas and found in [drinking-water] wells. There is another type of methane that is called biogenic, which is formed in much more shallow depths."
METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.