The sand on Titan is likely not made up of small grains of silicates like the sand on Earth, but rather might have formed when liquid methane rained and eroded the ice bedrock, possibly in the form of flash floods.
Roche moutonnée, ( French: "fleecy rock") English sheepback, or sheep rock, glaciated bedrock surface, usually in the form of rounded knobs.
After all, no one seems overly bothered that for decades the private sector has been the bedrock of the NHS in the form of thousands of for-profit GP practices.
Bedrock in the area was likely formed by Mazeras Sandstones.
Assuming that a fractured reservoir consists of fractures and bedrock and that the fractures exist in the form of fracture groups, we use the plane model of parallel fractures (Zeng et al. 2007).
Within the Drake Passage, however, hard substrate (in the form of bedrock, gravel and rocks) was more abundant, yet surprisingly the presence of scleractinians was low.
On Titan, meteorite impacts into the icy bedrock would provide the requisite liquid in the form of impact melt to hydrolyse any solid organics (Artemieva & Lunine, 2003 ▸, 2005 ▸) and both urea and ammonium carbonate may be substantial by-products, persisting on geological timescales at the surface temperature of 95 K.
We would expect the same isotopic signature of both the carbonate bedrock and soil abiotic CO2 efflux if all C released through weathering is emitted from soils in the form of CO2 (Fig. 1b).
But perhaps learning does not come in the form of such 'bedrock' propositions, as Jeffrey (1992) has argued — maybe it rather involves a shift in one's subjective probabilities across a partition, without any cell of the partition becoming certain.
They located this bedrock in the "microfoundations" of macroeconomic behaviour.
