Sentences with phrase «rocks over hundreds of millions of years»

Within only a few centuries we are returning to the atmosphere and oceans the concentrated organic carbon stored in sedimentary rocks over hundreds of millions of years.

«Thus, human beings are now carrying out a large scale geophysical experiment of the kind that could not have happened in the past... Within a few centuries we are returning to the atmosphere and oceans the concentrated organic carbon stored in sedimentary rocks over hundreds of millions of years.»

Not exact matches

Sedimentary rock layers provide a more compressed view of climate, as each layer of sediment is made over a period of hundreds of thousands to millions of years.

Currents of hot rock churning inside our planet have tended to pull all the continents together and then cast them apart again over hundreds of millions of years.

One of the most contentious debates in geoscience has centred on whether piles of rock in the deep mantle — to which plumes are anchored — have remained stationary, unaffected by mantle flow over hundreds of millions of years.

Over hundreds of millions of years the Sun actually warms up due to complicated processes in its core, but over, say, 100,000 years the heat and light we get from it is pretty much rock - constOver hundreds of millions of years the Sun actually warms up due to complicated processes in its core, but over, say, 100,000 years the heat and light we get from it is pretty much rock - constover, say, 100,000 years the heat and light we get from it is pretty much rock - constant.