Sentences with phrase «fossil calcite»

We can also agree that when constructing paleo - temperatures from fossil calcite, direct knowledge of paleo - marine temperature and salinity is not in hand.

That might help resolve the confounding of temperature and salinity in fossil calcite.

Not exact matches

This would also explain the unusual lack of typical pond fossils at the site, as well as the near lack of gnaw marks on bones and calcite and barite concretions found on bones excavated from the quarry.

The researchers hope to get a rough age range for the fossils by dating flowstones — calcite structures formed slowly by dripping water — in adjacent rock layers.

But the most ancient skeletal fossils are made not of bone, but of calcite — the same material that makes up the rock matrix in which they are embedded.