Sentences with phrase «ancient sedimentary rocks»
The metals» solubility depends strongly on the amount of oxygen present, so the amount and type of those metals in ancient sedimentary rocks reflect how much oxygen was in the water long ago, when the sediments formed.
scientificamerican.com
«You've got your work cut out if you're looking at ancient sedimentary rock for microfossils here on Earth — and even more so on Mars,» said Craig Marshall, the paper's lead author and an associate professor of geology at the University of Kansas.
The scientists turned to one of the world's oldest outcroppings of ancient sedimentary rock, located in Australia.
One of the few things experts all agree on is where to conduct the search: in the three far - flung provinces that host the world's most ancient sedimentary rocks.
Researchers focused on the cycle of sulfur and simulated the patterns in which three different isotopes of sulfur could combine in ancient sedimentary rocks.
The finds will make it much easier to date these ancient sedimentary rocks.
«Further study is required to fully understand the formation of carbonaceous material in these ancient sedimentary rocks,» Papineau said.
«You've got your work cut out if you're looking at the ancient sedimentary rock for microfossils here on Earth — and even more so on Mars,» said the paper's lead author and an associate professor at the University of Kansas, Craig Marshall.